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Diffstat (limited to 'binutils-2.24/gas/ecoff.c')
| -rw-r--r-- | binutils-2.24/gas/ecoff.c | 5244 |
1 files changed, 0 insertions, 5244 deletions
diff --git a/binutils-2.24/gas/ecoff.c b/binutils-2.24/gas/ecoff.c deleted file mode 100644 index 821b02ce..00000000 --- a/binutils-2.24/gas/ecoff.c +++ /dev/null @@ -1,5244 +0,0 @@ -/* ECOFF debugging support. - Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, - 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 - Free Software Foundation, Inc. - Contributed by Cygnus Support. - This file was put together by Ian Lance Taylor <ian@cygnus.com>. A - good deal of it comes directly from mips-tfile.c, by Michael - Meissner <meissner@osf.org>. - - This file is part of GAS. - - GAS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3, or (at your option) - any later version. - - GAS is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GAS; see the file COPYING. If not, write to the Free - Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA - 02110-1301, USA. */ - -#include "as.h" - -/* This file is compiled conditionally for those targets which use - ECOFF debugging information (e.g., MIPS ELF, Alpha ECOFF). */ - -#include "ecoff.h" - -#ifdef ECOFF_DEBUGGING - -#include "coff/internal.h" -#include "coff/symconst.h" -#include "aout/stab_gnu.h" -#include "filenames.h" -#include "safe-ctype.h" - -/* Why isn't this in coff/sym.h? */ -#define ST_RFDESCAPE 0xfff - -/* This file constructs the information used by the ECOFF debugging - format. It just builds a large block of data. - - We support both ECOFF style debugging and stabs debugging (the - stabs symbols are encapsulated in ECOFF symbols). This should let - us handle anything the compiler might throw at us. */ - -/* Here is a brief description of the MIPS ECOFF symbol table, by - Michael Meissner. The MIPS symbol table has the following pieces: - - Symbolic Header - | - +-- Auxiliary Symbols - | - +-- Dense number table - | - +-- Optimizer Symbols - | - +-- External Strings - | - +-- External Symbols - | - +-- Relative file descriptors - | - +-- File table - | - +-- Procedure table - | - +-- Line number table - | - +-- Local Strings - | - +-- Local Symbols - - The symbolic header points to each of the other tables, and also - contains the number of entries. It also contains a magic number - and MIPS compiler version number, such as 2.0. - - The auxiliary table is a series of 32 bit integers, that are - referenced as needed from the local symbol table. Unlike standard - COFF, the aux. information does not follow the symbol that uses - it, but rather is a separate table. In theory, this would allow - the MIPS compilers to collapse duplicate aux. entries, but I've not - noticed this happening with the 1.31 compiler suite. The different - types of aux. entries are: - - 1) dnLow: Low bound on array dimension. - - 2) dnHigh: High bound on array dimension. - - 3) isym: Index to the local symbol which is the start of the - function for the end of function first aux. entry. - - 4) width: Width of structures and bitfields. - - 5) count: Count of ranges for variant part. - - 6) rndx: A relative index into the symbol table. The relative - index field has two parts: rfd which is a pointer into the - relative file index table or ST_RFDESCAPE which says the next - aux. entry is the file number, and index: which is the pointer - into the local symbol within a given file table. This is for - things like references to types defined in another file. - - 7) Type information: This is like the COFF type bits, except it - is 32 bits instead of 16; they still have room to add new - basic types; and they can handle more than 6 levels of array, - pointer, function, etc. Each type information field contains - the following structure members: - - a) fBitfield: a bit that says this is a bitfield, and the - size in bits follows as the next aux. entry. - - b) continued: a bit that says the next aux. entry is a - continuation of the current type information (in case - there are more than 6 levels of array/ptr/function). - - c) bt: an integer containing the base type before adding - array, pointer, function, etc. qualifiers. The - current base types that I have documentation for are: - - btNil -- undefined - btAdr -- address - integer same size as ptr - btChar -- character - btUChar -- unsigned character - btShort -- short - btUShort -- unsigned short - btInt -- int - btUInt -- unsigned int - btLong -- long - btULong -- unsigned long - btFloat -- float (real) - btDouble -- Double (real) - btStruct -- Structure (Record) - btUnion -- Union (variant) - btEnum -- Enumerated - btTypedef -- defined via a typedef isymRef - btRange -- subrange of int - btSet -- pascal sets - btComplex -- fortran complex - btDComplex -- fortran double complex - btIndirect -- forward or unnamed typedef - btFixedDec -- Fixed Decimal - btFloatDec -- Float Decimal - btString -- Varying Length Character String - btBit -- Aligned Bit String - btPicture -- Picture - btVoid -- Void (MIPS cc revision >= 2.00) - - d) tq0 - tq5: type qualifier fields as needed. The - current type qualifier fields I have documentation for - are: - - tqNil -- no more qualifiers - tqPtr -- pointer - tqProc -- procedure - tqArray -- array - tqFar -- 8086 far pointers - tqVol -- volatile - - The dense number table is used in the front ends, and disappears by - the time the .o is created. - - With the 1.31 compiler suite, the optimization symbols don't seem - to be used as far as I can tell. - - The linker is the first entity that creates the relative file - descriptor table, and I believe it is used so that the individual - file table pointers don't have to be rewritten when the objects are - merged together into the program file. - - Unlike COFF, the basic symbol & string tables are split into - external and local symbols/strings. The relocation information - only goes off of the external symbol table, and the debug - information only goes off of the internal symbol table. The - external symbols can have links to an appropriate file index and - symbol within the file to give it the appropriate type information. - Because of this, the external symbols are actually larger than the - internal symbols (to contain the link information), and contain the - local symbol structure as a member, though this member is not the - first member of the external symbol structure (!). I suspect this - split is to make strip easier to deal with. - - Each file table has offsets for where the line numbers, local - strings, local symbols, and procedure table starts from within the - global tables, and the indexs are reset to 0 for each of those - tables for the file. - - The procedure table contains the binary equivalents of the .ent - (start of the function address), .frame (what register is the - virtual frame pointer, constant offset from the register to obtain - the VFP, and what register holds the return address), .mask/.fmask - (bitmask of saved registers, and where the first register is stored - relative to the VFP) assembler directives. It also contains the - low and high bounds of the line numbers if debugging is turned on. - - The line number table is a compressed form of the normal COFF line - table. Each line number entry is either 1 or 3 bytes long, and - contains a signed delta from the previous line, and an unsigned - count of the number of instructions this statement takes. - - The local symbol table contains the following fields: - - 1) iss: index to the local string table giving the name of the - symbol. - - 2) value: value of the symbol (address, register number, etc.). - - 3) st: symbol type. The current symbol types are: - - stNil -- Nuthin' special - stGlobal -- external symbol - stStatic -- static - stParam -- procedure argument - stLocal -- local variable - stLabel -- label - stProc -- External Procedure - stBlock -- beginning of block - stEnd -- end (of anything) - stMember -- member (of anything) - stTypedef -- type definition - stFile -- file name - stRegReloc -- register relocation - stForward -- forwarding address - stStaticProc -- Static procedure - stConstant -- const - - 4) sc: storage class. The current storage classes are: - - scText -- text symbol - scData -- initialized data symbol - scBss -- un-initialized data symbol - scRegister -- value of symbol is register number - scAbs -- value of symbol is absolute - scUndefined -- who knows? - scCdbLocal -- variable's value is IN se->va.?? - scBits -- this is a bit field - scCdbSystem -- value is IN debugger's address space - scRegImage -- register value saved on stack - scInfo -- symbol contains debugger information - scUserStruct -- addr in struct user for current process - scSData -- load time only small data - scSBss -- load time only small common - scRData -- load time only read only data - scVar -- Var parameter (fortranpascal) - scCommon -- common variable - scSCommon -- small common - scVarRegister -- Var parameter in a register - scVariant -- Variant record - scSUndefined -- small undefined(external) data - scInit -- .init section symbol - - 5) index: pointer to a local symbol or aux. entry. - - For the following program: - - #include <stdio.h> - - main(){ - printf("Hello World!\n"); - return 0; - } - - Mips-tdump produces the following information: - - Global file header: - magic number 0x162 - # sections 2 - timestamp 645311799, Wed Jun 13 17:16:39 1990 - symbolic header offset 284 - symbolic header size 96 - optional header 56 - flags 0x0 - - Symbolic header, magic number = 0x7009, vstamp = 1.31: - - Info Offset Number Bytes - ==== ====== ====== ===== - - Line numbers 380 4 4 [13] - Dense numbers 0 0 0 - Procedures Tables 384 1 52 - Local Symbols 436 16 192 - Optimization Symbols 0 0 0 - Auxiliary Symbols 628 39 156 - Local Strings 784 80 80 - External Strings 864 144 144 - File Tables 1008 2 144 - Relative Files 0 0 0 - External Symbols 1152 20 320 - - File #0, "hello2.c" - - Name index = 1 Readin = No - Merge = No Endian = LITTLE - Debug level = G2 Language = C - Adr = 0x00000000 - - Info Start Number Size Offset - ==== ===== ====== ==== ====== - Local strings 0 15 15 784 - Local symbols 0 6 72 436 - Line numbers 0 13 13 380 - Optimization symbols 0 0 0 0 - Procedures 0 1 52 384 - Auxiliary symbols 0 14 56 628 - Relative Files 0 0 0 0 - - There are 6 local symbols, starting at 436 - - Symbol# 0: "hello2.c" - End+1 symbol = 6 - String index = 1 - Storage class = Text Index = 6 - Symbol type = File Value = 0 - - Symbol# 1: "main" - End+1 symbol = 5 - Type = int - String index = 10 - Storage class = Text Index = 12 - Symbol type = Proc Value = 0 - - Symbol# 2: "" - End+1 symbol = 4 - String index = 0 - Storage class = Text Index = 4 - Symbol type = Block Value = 8 - - Symbol# 3: "" - First symbol = 2 - String index = 0 - Storage class = Text Index = 2 - Symbol type = End Value = 28 - - Symbol# 4: "main" - First symbol = 1 - String index = 10 - Storage class = Text Index = 1 - Symbol type = End Value = 52 - - Symbol# 5: "hello2.c" - First symbol = 0 - String index = 1 - Storage class = Text Index = 0 - Symbol type = End Value = 0 - - There are 14 auxiliary table entries, starting at 628. - - * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] - * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] - * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] - * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] - * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] - * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] - * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] - * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] - * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] - * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] - * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] - #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] - #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] - - There are 1 procedure descriptor entries, starting at 0. - - Procedure descriptor 0: - Name index = 10 Name = "main" - .mask 0x80000000,-4 .fmask 0x00000000,0 - .frame $29,24,$31 - Opt. start = -1 Symbols start = 1 - First line # = 3 Last line # = 6 - Line Offset = 0 Address = 0x00000000 - - There are 4 bytes holding line numbers, starting at 380. - Line 3, delta 0, count 2 - Line 4, delta 1, count 3 - Line 5, delta 1, count 2 - Line 6, delta 1, count 6 - - File #1, "/usr/include/stdio.h" - - Name index = 1 Readin = No - Merge = Yes Endian = LITTLE - Debug level = G2 Language = C - Adr = 0x00000000 - - Info Start Number Size Offset - ==== ===== ====== ==== ====== - Local strings 15 65 65 799 - Local symbols 6 10 120 508 - Line numbers 0 0 0 380 - Optimization symbols 0 0 0 0 - Procedures 1 0 0 436 - Auxiliary symbols 14 25 100 684 - Relative Files 0 0 0 0 - - There are 10 local symbols, starting at 442 - - Symbol# 0: "/usr/include/stdio.h" - End+1 symbol = 10 - String index = 1 - Storage class = Text Index = 10 - Symbol type = File Value = 0 - - Symbol# 1: "_iobuf" - End+1 symbol = 9 - String index = 22 - Storage class = Info Index = 9 - Symbol type = Block Value = 20 - - Symbol# 2: "_cnt" - Type = int - String index = 29 - Storage class = Info Index = 4 - Symbol type = Member Value = 0 - - Symbol# 3: "_ptr" - Type = ptr to char - String index = 34 - Storage class = Info Index = 15 - Symbol type = Member Value = 32 - - Symbol# 4: "_base" - Type = ptr to char - String index = 39 - Storage class = Info Index = 16 - Symbol type = Member Value = 64 - - Symbol# 5: "_bufsiz" - Type = int - String index = 45 - Storage class = Info Index = 4 - Symbol type = Member Value = 96 - - Symbol# 6: "_flag" - Type = short - String index = 53 - Storage class = Info Index = 3 - Symbol type = Member Value = 128 - - Symbol# 7: "_file" - Type = char - String index = 59 - Storage class = Info Index = 2 - Symbol type = Member Value = 144 - - Symbol# 8: "" - First symbol = 1 - String index = 0 - Storage class = Info Index = 1 - Symbol type = End Value = 0 - - Symbol# 9: "/usr/include/stdio.h" - First symbol = 0 - String index = 1 - Storage class = Text Index = 0 - Symbol type = End Value = 0 - - There are 25 auxiliary table entries, starting at 642. - - * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] - #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] - #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] - * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] - * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] - * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] - * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] - * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] - * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] - * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] - * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] - - There are 0 procedure descriptor entries, starting at 1. - - There are 20 external symbols, starting at 1152 - - Symbol# 0: "_iob" - Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } - String index = 0 Ifd = 1 - Storage class = Nil Index = 17 - Symbol type = Global Value = 60 - - Symbol# 1: "fopen" - String index = 5 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 2: "fdopen" - String index = 11 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 3: "freopen" - String index = 18 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 4: "popen" - String index = 26 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 5: "tmpfile" - String index = 32 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 6: "ftell" - String index = 40 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 7: "rewind" - String index = 46 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 8: "setbuf" - String index = 53 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 9: "setbuffer" - String index = 60 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 10: "setlinebuf" - String index = 70 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 11: "fgets" - String index = 81 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 12: "gets" - String index = 87 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 13: "ctermid" - String index = 92 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 14: "cuserid" - String index = 100 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 15: "tempnam" - String index = 108 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 16: "tmpnam" - String index = 116 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 17: "sprintf" - String index = 123 Ifd = 1 - Storage class = Nil Index = 1048575 - Symbol type = Proc Value = 0 - - Symbol# 18: "main" - Type = int - String index = 131 Ifd = 0 - Storage class = Text Index = 1 - Symbol type = Proc Value = 0 - - Symbol# 19: "printf" - String index = 136 Ifd = 0 - Storage class = Undefined Index = 1048575 - Symbol type = Proc Value = 0 - - The following auxiliary table entries were unused: - - #0 0 0x00000000 void - #2 8 0x00000008 char - #3 16 0x00000010 short - #4 24 0x00000018 int - #5 32 0x00000020 long - #6 40 0x00000028 float - #7 44 0x0000002c double - #8 12 0x0000000c unsigned char - #9 20 0x00000014 unsigned short - #10 28 0x0000001c unsigned int - #11 36 0x00000024 unsigned long - #14 0 0x00000000 void - #15 24 0x00000018 int - #19 32 0x00000020 long - #20 40 0x00000028 float - #21 44 0x0000002c double - #22 12 0x0000000c unsigned char - #23 20 0x00000014 unsigned short - #24 28 0x0000001c unsigned int - #25 36 0x00000024 unsigned long - #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } -*/ - -/* Redefinition of of storage classes as an enumeration for better - debugging. */ - -typedef enum sc { - sc_Nil = scNil, /* no storage class */ - sc_Text = scText, /* text symbol */ - sc_Data = scData, /* initialized data symbol */ - sc_Bss = scBss, /* un-initialized data symbol */ - sc_Register = scRegister, /* value of symbol is register number */ - sc_Abs = scAbs, /* value of symbol is absolute */ - sc_Undefined = scUndefined, /* who knows? */ - sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ - sc_Bits = scBits, /* this is a bit field */ - sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ - sc_RegImage = scRegImage, /* register value saved on stack */ - sc_Info = scInfo, /* symbol contains debugger information */ - sc_UserStruct = scUserStruct, /* addr in struct user for current process */ - sc_SData = scSData, /* load time only small data */ - sc_SBss = scSBss, /* load time only small common */ - sc_RData = scRData, /* load time only read only data */ - sc_Var = scVar, /* Var parameter (fortran,pascal) */ - sc_Common = scCommon, /* common variable */ - sc_SCommon = scSCommon, /* small common */ - sc_VarRegister = scVarRegister, /* Var parameter in a register */ - sc_Variant = scVariant, /* Variant record */ - sc_SUndefined = scSUndefined, /* small undefined(external) data */ - sc_Init = scInit, /* .init section symbol */ - sc_Max = scMax /* Max storage class+1 */ -} sc_t; - -/* Redefinition of symbol type. */ - -typedef enum st { - st_Nil = stNil, /* Nuthin' special */ - st_Global = stGlobal, /* external symbol */ - st_Static = stStatic, /* static */ - st_Param = stParam, /* procedure argument */ - st_Local = stLocal, /* local variable */ - st_Label = stLabel, /* label */ - st_Proc = stProc, /* " " Procedure */ - st_Block = stBlock, /* beginning of block */ - st_End = stEnd, /* end (of anything) */ - st_Member = stMember, /* member (of anything - struct/union/enum */ - st_Typedef = stTypedef, /* type definition */ - st_File = stFile, /* file name */ - st_RegReloc = stRegReloc, /* register relocation */ - st_Forward = stForward, /* forwarding address */ - st_StaticProc = stStaticProc, /* load time only static procs */ - st_Constant = stConstant, /* const */ - st_Str = stStr, /* string */ - st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ - st_Expr = stExpr, /* 2+2 vs. 4 */ - st_Type = stType, /* post-coercion SER */ - st_Max = stMax /* max type+1 */ -} st_t; - -/* Redefinition of type qualifiers. */ - -typedef enum tq { - tq_Nil = tqNil, /* bt is what you see */ - tq_Ptr = tqPtr, /* pointer */ - tq_Proc = tqProc, /* procedure */ - tq_Array = tqArray, /* duh */ - tq_Far = tqFar, /* longer addressing - 8086/8 land */ - tq_Vol = tqVol, /* volatile */ - tq_Max = tqMax /* Max type qualifier+1 */ -} tq_t; - -/* Redefinition of basic types. */ - -typedef enum bt { - bt_Nil = btNil, /* undefined */ - bt_Adr = btAdr, /* address - integer same size as pointer */ - bt_Char = btChar, /* character */ - bt_UChar = btUChar, /* unsigned character */ - bt_Short = btShort, /* short */ - bt_UShort = btUShort, /* unsigned short */ - bt_Int = btInt, /* int */ - bt_UInt = btUInt, /* unsigned int */ - bt_Long = btLong, /* long */ - bt_ULong = btULong, /* unsigned long */ - bt_Float = btFloat, /* float (real) */ - bt_Double = btDouble, /* Double (real) */ - bt_Struct = btStruct, /* Structure (Record) */ - bt_Union = btUnion, /* Union (variant) */ - bt_Enum = btEnum, /* Enumerated */ - bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ - bt_Range = btRange, /* subrange of int */ - bt_Set = btSet, /* pascal sets */ - bt_Complex = btComplex, /* fortran complex */ - bt_DComplex = btDComplex, /* fortran double complex */ - bt_Indirect = btIndirect, /* forward or unnamed typedef */ - bt_FixedDec = btFixedDec, /* Fixed Decimal */ - bt_FloatDec = btFloatDec, /* Float Decimal */ - bt_String = btString, /* Varying Length Character String */ - bt_Bit = btBit, /* Aligned Bit String */ - bt_Picture = btPicture, /* Picture */ - bt_Void = btVoid, /* Void */ - bt_Max = btMax /* Max basic type+1 */ -} bt_t; - -#define N_TQ itqMax - -/* States for whether to hash type or not. */ -typedef enum hash_state { - hash_no = 0, /* Don't hash type */ - hash_yes = 1, /* OK to hash type, or use previous hash */ - hash_record = 2 /* OK to record hash, but don't use prev. */ -} hash_state_t; - -/* Types of different sized allocation requests. */ -enum alloc_type { - alloc_type_none, /* dummy value */ - alloc_type_scope, /* nested scopes linked list */ - alloc_type_vlinks, /* glue linking pages in varray */ - alloc_type_shash, /* string hash element */ - alloc_type_thash, /* type hash element */ - alloc_type_tag, /* struct/union/tag element */ - alloc_type_forward, /* element to hold unknown tag */ - alloc_type_thead, /* head of type hash list */ - alloc_type_varray, /* general varray allocation */ - alloc_type_lineno, /* line number list */ - alloc_type_last /* last+1 element for array bounds */ -}; - -/* Types of auxiliary type information. */ -enum aux_type { - aux_tir, /* TIR type information */ - aux_rndx, /* relative index into symbol table */ - aux_dnLow, /* low dimension */ - aux_dnHigh, /* high dimension */ - aux_isym, /* symbol table index (end of proc) */ - aux_iss, /* index into string space (not used) */ - aux_width, /* width for non-default sized struc fields */ - aux_count /* count of ranges for variant arm */ -}; - -/* Structures to provide n-number of virtual arrays, each of which can - grow linearly, and which are written in the object file as - sequential pages. On systems with a BSD malloc, the - MAX_CLUSTER_PAGES should be 1 less than a power of two, since - malloc adds it's overhead, and rounds up to the next power of 2. - Pages are linked together via a linked list. - - If PAGE_SIZE is > 4096, the string length in the shash_t structure - can't be represented (assuming there are strings > 4096 bytes). */ - -/* FIXME: Yes, there can be such strings while emitting C++ class debug - info. Templates are the offender here, the test case in question - having a mangled class name of - - t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\ - 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey - - Repeat that a couple dozen times while listing the class members and - you've got strings over 4k. Hack around this for now by increasing - the page size. A proper solution would abandon this structure scheme - certainly for very large strings, and possibly entirely. */ - -#ifndef PAGE_SIZE -#define PAGE_SIZE (8*1024) /* size of varray pages */ -#endif - -#define PAGE_USIZE ((unsigned long) PAGE_SIZE) - -#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ -#define MAX_CLUSTER_PAGES 63 -#endif - -/* Linked list connecting separate page allocations. */ -typedef struct vlinks { - struct vlinks *prev; /* previous set of pages */ - struct vlinks *next; /* next set of pages */ - union page *datum; /* start of page */ - unsigned long start_index; /* starting index # of page */ -} vlinks_t; - -/* Virtual array header. */ -typedef struct varray { - vlinks_t *first; /* first page link */ - vlinks_t *last; /* last page link */ - unsigned long num_allocated; /* # objects allocated */ - unsigned short object_size; /* size in bytes of each object */ - unsigned short objects_per_page; /* # objects that can fit on a page */ - unsigned short objects_last_page; /* # objects allocated on last page */ -} varray_t; - -#ifndef MALLOC_CHECK -#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) -#else -#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) -#endif - -#define INIT_VARRAY(type) { /* macro to initialize a varray */ \ - (vlinks_t *)0, /* first */ \ - (vlinks_t *)0, /* last */ \ - 0, /* num_allocated */ \ - sizeof (type), /* object_size */ \ - OBJECTS_PER_PAGE (type), /* objects_per_page */ \ - OBJECTS_PER_PAGE (type), /* objects_last_page */ \ -} - -/* Master type for indexes within the symbol table. */ -typedef unsigned long symint_t; - -/* Linked list support for nested scopes (file, block, structure, etc.). */ -typedef struct scope { - struct scope *prev; /* previous scope level */ - struct scope *free; /* free list pointer */ - struct localsym *lsym; /* pointer to local symbol node */ - st_t type; /* type of the node */ -} scope_t; - -/* For a local symbol we store a gas symbol as well as the debugging - information we generate. The gas symbol will be NULL if this is - only a debugging symbol. */ -typedef struct localsym { - const char *name; /* symbol name */ - symbolS *as_sym; /* symbol as seen by gas */ - bfd_vma addend; /* addend to as_sym value */ - struct efdr *file_ptr; /* file pointer */ - struct ecoff_proc *proc_ptr; /* proc pointer */ - struct localsym *begin_ptr; /* symbol at start of block */ - struct ecoff_aux *index_ptr; /* index value to be filled in */ - struct forward *forward_ref; /* forward references to this symbol */ - long sym_index; /* final symbol index */ - EXTR ecoff_sym; /* ECOFF debugging symbol */ -} localsym_t; - -/* For aux information we keep the type and the data. */ -typedef struct ecoff_aux { - enum aux_type type; /* aux type */ - AUXU data; /* aux data */ -} aux_t; - -/* For a procedure we store the gas symbol as well as the PDR - debugging information. */ -typedef struct ecoff_proc { - localsym_t *sym; /* associated symbol */ - PDR pdr; /* ECOFF debugging info */ -} proc_t; - -/* Number of proc_t structures allocated. */ -static unsigned long proc_cnt; - -/* Forward reference list for tags referenced, but not yet defined. */ -typedef struct forward { - struct forward *next; /* next forward reference */ - struct forward *free; /* free list pointer */ - aux_t *ifd_ptr; /* pointer to store file index */ - aux_t *index_ptr; /* pointer to store symbol index */ -} forward_t; - -/* Linked list support for tags. The first tag in the list is always - the current tag for that block. */ -typedef struct tag { - struct tag *free; /* free list pointer */ - struct shash *hash_ptr; /* pointer to the hash table head */ - struct tag *same_name; /* tag with same name in outer scope */ - struct tag *same_block; /* next tag defined in the same block. */ - struct forward *forward_ref; /* list of forward references */ - bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ - symint_t ifd; /* file # tag defined in */ - localsym_t *sym; /* file's local symbols */ -} tag_t; - -/* Head of a block's linked list of tags. */ -typedef struct thead { - struct thead *prev; /* previous block */ - struct thead *free; /* free list pointer */ - struct tag *first_tag; /* first tag in block defined */ -} thead_t; - -/* Union containing pointers to each the small structures which are freed up. */ -typedef union small_free { - scope_t *f_scope; /* scope structure */ - thead_t *f_thead; /* tag head structure */ - tag_t *f_tag; /* tag element structure */ - forward_t *f_forward; /* forward tag reference */ -} small_free_t; - -/* String hash table entry. */ - -typedef struct shash { - char *string; /* string we are hashing */ - symint_t indx; /* index within string table */ - EXTR *esym_ptr; /* global symbol pointer */ - localsym_t *sym_ptr; /* local symbol pointer */ - localsym_t *end_ptr; /* symbol pointer to end block */ - tag_t *tag_ptr; /* tag pointer */ - proc_t *proc_ptr; /* procedure descriptor pointer */ -} shash_t; - -/* Type hash table support. The size of the hash table must fit - within a page with the other extended file descriptor information. - Because unique types which are hashed are fewer in number than - strings, we use a smaller hash value. */ - -#define HASHBITS 30 - -#ifndef THASH_SIZE -#define THASH_SIZE 113 -#endif - -typedef struct thash { - struct thash *next; /* next hash value */ - AUXU type; /* type we are hashing */ - symint_t indx; /* index within string table */ -} thash_t; - -/* Extended file descriptor that contains all of the support necessary - to add things to each file separately. */ -typedef struct efdr { - FDR fdr; /* File header to be written out */ - FDR *orig_fdr; /* original file header */ - char *name; /* filename */ - int fake; /* whether this is faked .file */ - symint_t void_type; /* aux. pointer to 'void' type */ - symint_t int_type; /* aux. pointer to 'int' type */ - scope_t *cur_scope; /* current nested scopes */ - symint_t file_index; /* current file number */ - int nested_scopes; /* # nested scopes */ - varray_t strings; /* local strings */ - varray_t symbols; /* local symbols */ - varray_t procs; /* procedures */ - varray_t aux_syms; /* auxiliary symbols */ - struct efdr *next_file; /* next file descriptor */ - /* string/type hash tables */ - struct hash_control *str_hash; /* string hash table */ - thash_t *thash_head[THASH_SIZE]; -} efdr_t; - -/* Pre-initialized extended file structure. */ -static const efdr_t init_file = { - { /* FDR structure */ - 0, /* adr: memory address of beginning of file */ - 0, /* rss: file name (of source, if known) */ - 0, /* issBase: file's string space */ - 0, /* cbSs: number of bytes in the ss */ - 0, /* isymBase: beginning of symbols */ - 0, /* csym: count file's of symbols */ - 0, /* ilineBase: file's line symbols */ - 0, /* cline: count of file's line symbols */ - 0, /* ioptBase: file's optimization entries */ - 0, /* copt: count of file's optimization entries */ - 0, /* ipdFirst: start of procedures for this file */ - 0, /* cpd: count of procedures for this file */ - 0, /* iauxBase: file's auxiliary entries */ - 0, /* caux: count of file's auxiliary entries */ - 0, /* rfdBase: index into the file indirect table */ - 0, /* crfd: count file indirect entries */ - langC, /* lang: language for this file */ - 1, /* fMerge: whether this file can be merged */ - 0, /* fReadin: true if read in (not just created) */ - TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */ - GLEVEL_2, /* glevel: level this file was compiled with */ - 0, /* reserved: reserved for future use */ - 0, /* cbLineOffset: byte offset from header for this file ln's */ - 0, /* cbLine: size of lines for this file */ - }, - - (FDR *)0, /* orig_fdr: original file header pointer */ - (char *)0, /* name: pointer to filename */ - 0, /* fake: whether this is a faked .file */ - 0, /* void_type: ptr to aux node for void type */ - 0, /* int_type: ptr to aux node for int type */ - (scope_t *)0, /* cur_scope: current scope being processed */ - 0, /* file_index: current file # */ - 0, /* nested_scopes: # nested scopes */ - INIT_VARRAY (char), /* strings: local string varray */ - INIT_VARRAY (localsym_t), /* symbols: local symbols varray */ - INIT_VARRAY (proc_t), /* procs: procedure varray */ - INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */ - - (struct efdr *)0, /* next_file: next file structure */ - - (struct hash_control *)0, /* str_hash: string hash table */ - { 0 }, /* thash_head: type hash table */ -}; - -static efdr_t *first_file; /* first file descriptor */ -static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ - -/* Line number information is kept in a list until the assembly is - finished. */ -typedef struct lineno_list { - struct lineno_list *next; /* next element in list */ - efdr_t *file; /* file this line is in */ - proc_t *proc; /* procedure this line is in */ - fragS *frag; /* fragment this line number is in */ - unsigned long paddr; /* offset within fragment */ - long lineno; /* actual line number */ -} lineno_list_t; - -static lineno_list_t *first_lineno; -static lineno_list_t *last_lineno; -static lineno_list_t **last_lineno_ptr = &first_lineno; - -/* Sometimes there will be some .loc statements before a .ent. We - keep them in this list so that we can fill in the procedure pointer - after we see the .ent. */ -static lineno_list_t *noproc_lineno; - -/* Union of various things that are held in pages. */ -typedef union page { - char byte [ PAGE_SIZE ]; - unsigned char ubyte [ PAGE_SIZE ]; - efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; - FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; - proc_t proc [ PAGE_SIZE / sizeof (proc_t) ]; - localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ]; - aux_t aux [ PAGE_SIZE / sizeof (aux_t) ]; - DNR dense [ PAGE_SIZE / sizeof (DNR) ]; - scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; - vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; - shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; - thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; - tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; - forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; - thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; - lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ]; -} page_type; - -/* Structure holding allocation information for small sized structures. */ -typedef struct alloc_info { - char *alloc_name; /* name of this allocation type (must be first) */ - page_type *cur_page; /* current page being allocated from */ - small_free_t free_list; /* current free list if any */ - int unallocated; /* number of elements unallocated on page */ - int total_alloc; /* total number of allocations */ - int total_free; /* total number of frees */ - int total_pages; /* total number of pages allocated */ -} alloc_info_t; - -/* Type information collected together. */ -typedef struct type_info { - bt_t basic_type; /* basic type */ - int orig_type; /* original COFF-based type */ - int num_tq; /* # type qualifiers */ - int num_dims; /* # dimensions */ - int num_sizes; /* # sizes */ - int extra_sizes; /* # extra sizes not tied with dims */ - tag_t * tag_ptr; /* tag pointer */ - int bitfield; /* symbol is a bitfield */ - tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ - symint_t dimensions [N_TQ]; /* dimensions for each array */ - symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of - struct/union/enum + bitfield size */ -} type_info_t; - -/* Pre-initialized type_info struct. */ -static const type_info_t type_info_init = { - bt_Nil, /* basic type */ - T_NULL, /* original COFF-based type */ - 0, /* # type qualifiers */ - 0, /* # dimensions */ - 0, /* # sizes */ - 0, /* sizes not tied with dims */ - NULL, /* ptr to tag */ - 0, /* bitfield */ - { /* type qualifiers */ - tq_Nil, - tq_Nil, - tq_Nil, - tq_Nil, - tq_Nil, - tq_Nil, - }, - { /* dimensions */ - 0, - 0, - 0, - 0, - 0, - 0 - }, - { /* sizes */ - 0, - 0, - 0, - 0, - 0, - 0, - 0, - 0, - }, -}; - -/* Global hash table for the tags table and global table for file - descriptors. */ - -static varray_t file_desc = INIT_VARRAY (efdr_t); - -static struct hash_control *tag_hash; - -/* Static types for int and void. Also, remember the last function's - type (which is set up when we encounter the declaration for the - function, and used when the end block for the function is emitted. */ - -static type_info_t int_type_info; -static type_info_t void_type_info; -static type_info_t last_func_type_info; -static symbolS *last_func_sym_value; - -/* Convert COFF basic type to ECOFF basic type. The T_NULL type - really should use bt_Void, but this causes the current ecoff GDB to - issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS - 2.0) doesn't understand it, even though the compiler generates it. - Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler - suite, but for now go with what works. - - It would make sense for the .type and .scl directives to use the - ECOFF numbers directly, rather than using the COFF numbers and - mapping them. Unfortunately, this is historically what mips-tfile - expects, and changing gcc now would be a considerable pain (the - native compiler generates debugging information internally, rather - than via the assembler, so it will never use .type or .scl). */ - -static const bt_t map_coff_types[] = { - bt_Nil, /* T_NULL */ - bt_Nil, /* T_ARG */ - bt_Char, /* T_CHAR */ - bt_Short, /* T_SHORT */ - bt_Int, /* T_INT */ - bt_Long, /* T_LONG */ - bt_Float, /* T_FLOAT */ - bt_Double, /* T_DOUBLE */ - bt_Struct, /* T_STRUCT */ - bt_Union, /* T_UNION */ - bt_Enum, /* T_ENUM */ - bt_Enum, /* T_MOE */ - bt_UChar, /* T_UCHAR */ - bt_UShort, /* T_USHORT */ - bt_UInt, /* T_UINT */ - bt_ULong /* T_ULONG */ -}; - -/* Convert COFF storage class to ECOFF storage class. */ -static const sc_t map_coff_storage[] = { - sc_Nil, /* 0: C_NULL */ - sc_Abs, /* 1: C_AUTO auto var */ - sc_Undefined, /* 2: C_EXT external */ - sc_Data, /* 3: C_STAT static */ - sc_Register, /* 4: C_REG register */ - sc_Undefined, /* 5: C_EXTDEF ??? */ - sc_Text, /* 6: C_LABEL label */ - sc_Text, /* 7: C_ULABEL user label */ - sc_Info, /* 8: C_MOS member of struct */ - sc_Abs, /* 9: C_ARG argument */ - sc_Info, /* 10: C_STRTAG struct tag */ - sc_Info, /* 11: C_MOU member of union */ - sc_Info, /* 12: C_UNTAG union tag */ - sc_Info, /* 13: C_TPDEF typedef */ - sc_Data, /* 14: C_USTATIC ??? */ - sc_Info, /* 15: C_ENTAG enum tag */ - sc_Info, /* 16: C_MOE member of enum */ - sc_Register, /* 17: C_REGPARM register parameter */ - sc_Bits, /* 18; C_FIELD bitfield */ - sc_Nil, /* 19 */ - sc_Nil, /* 20 */ - sc_Nil, /* 21 */ - sc_Nil, /* 22 */ - sc_Nil, /* 23 */ - sc_Nil, /* 24 */ - sc_Nil, /* 25 */ - sc_Nil, /* 26 */ - sc_Nil, /* 27 */ - sc_Nil, /* 28 */ - sc_Nil, /* 29 */ - sc_Nil, /* 30 */ - sc_Nil, /* 31 */ - sc_Nil, /* 32 */ - sc_Nil, /* 33 */ - sc_Nil, /* 34 */ - sc_Nil, /* 35 */ - sc_Nil, /* 36 */ - sc_Nil, /* 37 */ - sc_Nil, /* 38 */ - sc_Nil, /* 39 */ - sc_Nil, /* 40 */ - sc_Nil, /* 41 */ - sc_Nil, /* 42 */ - sc_Nil, /* 43 */ - sc_Nil, /* 44 */ - sc_Nil, /* 45 */ - sc_Nil, /* 46 */ - sc_Nil, /* 47 */ - sc_Nil, /* 48 */ - sc_Nil, /* 49 */ - sc_Nil, /* 50 */ - sc_Nil, /* 51 */ - sc_Nil, /* 52 */ - sc_Nil, /* 53 */ - sc_Nil, /* 54 */ - sc_Nil, /* 55 */ - sc_Nil, /* 56 */ - sc_Nil, /* 57 */ - sc_Nil, /* 58 */ - sc_Nil, /* 59 */ - sc_Nil, /* 60 */ - sc_Nil, /* 61 */ - sc_Nil, /* 62 */ - sc_Nil, /* 63 */ - sc_Nil, /* 64 */ - sc_Nil, /* 65 */ - sc_Nil, /* 66 */ - sc_Nil, /* 67 */ - sc_Nil, /* 68 */ - sc_Nil, /* 69 */ - sc_Nil, /* 70 */ - sc_Nil, /* 71 */ - sc_Nil, /* 72 */ - sc_Nil, /* 73 */ - sc_Nil, /* 74 */ - sc_Nil, /* 75 */ - sc_Nil, /* 76 */ - sc_Nil, /* 77 */ - sc_Nil, /* 78 */ - sc_Nil, /* 79 */ - sc_Nil, /* 80 */ - sc_Nil, /* 81 */ - sc_Nil, /* 82 */ - sc_Nil, /* 83 */ - sc_Nil, /* 84 */ - sc_Nil, /* 85 */ - sc_Nil, /* 86 */ - sc_Nil, /* 87 */ - sc_Nil, /* 88 */ - sc_Nil, /* 89 */ - sc_Nil, /* 90 */ - sc_Nil, /* 91 */ - sc_Nil, /* 92 */ - sc_Nil, /* 93 */ - sc_Nil, /* 94 */ - sc_Nil, /* 95 */ - sc_Nil, /* 96 */ - sc_Nil, /* 97 */ - sc_Nil, /* 98 */ - sc_Nil, /* 99 */ - sc_Text, /* 100: C_BLOCK block start/end */ - sc_Text, /* 101: C_FCN function start/end */ - sc_Info, /* 102: C_EOS end of struct/union/enum */ - sc_Nil, /* 103: C_FILE file start */ - sc_Nil, /* 104: C_LINE line number */ - sc_Nil, /* 105: C_ALIAS combined type info */ - sc_Nil, /* 106: C_HIDDEN ??? */ -}; - -/* Convert COFF storage class to ECOFF symbol type. */ -static const st_t map_coff_sym_type[] = { - st_Nil, /* 0: C_NULL */ - st_Local, /* 1: C_AUTO auto var */ - st_Global, /* 2: C_EXT external */ - st_Static, /* 3: C_STAT static */ - st_Local, /* 4: C_REG register */ - st_Global, /* 5: C_EXTDEF ??? */ - st_Label, /* 6: C_LABEL label */ - st_Label, /* 7: C_ULABEL user label */ - st_Member, /* 8: C_MOS member of struct */ - st_Param, /* 9: C_ARG argument */ - st_Block, /* 10: C_STRTAG struct tag */ - st_Member, /* 11: C_MOU member of union */ - st_Block, /* 12: C_UNTAG union tag */ - st_Typedef, /* 13: C_TPDEF typedef */ - st_Static, /* 14: C_USTATIC ??? */ - st_Block, /* 15: C_ENTAG enum tag */ - st_Member, /* 16: C_MOE member of enum */ - st_Param, /* 17: C_REGPARM register parameter */ - st_Member, /* 18; C_FIELD bitfield */ - st_Nil, /* 19 */ - st_Nil, /* 20 */ - st_Nil, /* 21 */ - st_Nil, /* 22 */ - st_Nil, /* 23 */ - st_Nil, /* 24 */ - st_Nil, /* 25 */ - st_Nil, /* 26 */ - st_Nil, /* 27 */ - st_Nil, /* 28 */ - st_Nil, /* 29 */ - st_Nil, /* 30 */ - st_Nil, /* 31 */ - st_Nil, /* 32 */ - st_Nil, /* 33 */ - st_Nil, /* 34 */ - st_Nil, /* 35 */ - st_Nil, /* 36 */ - st_Nil, /* 37 */ - st_Nil, /* 38 */ - st_Nil, /* 39 */ - st_Nil, /* 40 */ - st_Nil, /* 41 */ - st_Nil, /* 42 */ - st_Nil, /* 43 */ - st_Nil, /* 44 */ - st_Nil, /* 45 */ - st_Nil, /* 46 */ - st_Nil, /* 47 */ - st_Nil, /* 48 */ - st_Nil, /* 49 */ - st_Nil, /* 50 */ - st_Nil, /* 51 */ - st_Nil, /* 52 */ - st_Nil, /* 53 */ - st_Nil, /* 54 */ - st_Nil, /* 55 */ - st_Nil, /* 56 */ - st_Nil, /* 57 */ - st_Nil, /* 58 */ - st_Nil, /* 59 */ - st_Nil, /* 60 */ - st_Nil, /* 61 */ - st_Nil, /* 62 */ - st_Nil, /* 63 */ - st_Nil, /* 64 */ - st_Nil, /* 65 */ - st_Nil, /* 66 */ - st_Nil, /* 67 */ - st_Nil, /* 68 */ - st_Nil, /* 69 */ - st_Nil, /* 70 */ - st_Nil, /* 71 */ - st_Nil, /* 72 */ - st_Nil, /* 73 */ - st_Nil, /* 74 */ - st_Nil, /* 75 */ - st_Nil, /* 76 */ - st_Nil, /* 77 */ - st_Nil, /* 78 */ - st_Nil, /* 79 */ - st_Nil, /* 80 */ - st_Nil, /* 81 */ - st_Nil, /* 82 */ - st_Nil, /* 83 */ - st_Nil, /* 84 */ - st_Nil, /* 85 */ - st_Nil, /* 86 */ - st_Nil, /* 87 */ - st_Nil, /* 88 */ - st_Nil, /* 89 */ - st_Nil, /* 90 */ - st_Nil, /* 91 */ - st_Nil, /* 92 */ - st_Nil, /* 93 */ - st_Nil, /* 94 */ - st_Nil, /* 95 */ - st_Nil, /* 96 */ - st_Nil, /* 97 */ - st_Nil, /* 98 */ - st_Nil, /* 99 */ - st_Block, /* 100: C_BLOCK block start/end */ - st_Proc, /* 101: C_FCN function start/end */ - st_End, /* 102: C_EOS end of struct/union/enum */ - st_File, /* 103: C_FILE file start */ - st_Nil, /* 104: C_LINE line number */ - st_Nil, /* 105: C_ALIAS combined type info */ - st_Nil, /* 106: C_HIDDEN ??? */ -}; - -/* Keep track of different sized allocation requests. */ -static alloc_info_t alloc_counts[(int) alloc_type_last]; - -/* Record whether we have seen any debugging information. */ -int ecoff_debugging_seen = 0; - -/* Various statics. */ -static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ -static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */ -static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */ -static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */ -static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */ -#ifdef ECOFF_DEBUG -static int debug = 0; /* trace functions */ -#endif -static int stabs_seen = 0; /* != 0 if stabs have been seen */ - -static int current_file_idx; -static const char *current_stabs_filename; - -/* Pseudo symbol to use when putting stabs into the symbol table. */ -#ifndef STABS_SYMBOL -#define STABS_SYMBOL "@stabs" -#endif - -static char stabs_symbol[] = STABS_SYMBOL; - -/* Prototypes for functions defined in this file. */ - -static void add_varray_page (varray_t *vp); -static symint_t add_string (varray_t *vp, - struct hash_control *hash_tbl, - const char *str, - shash_t **ret_hash); -static localsym_t *add_ecoff_symbol (const char *str, st_t type, - sc_t storage, symbolS *sym, - bfd_vma addend, symint_t value, - symint_t indx); -static symint_t add_aux_sym_symint (symint_t aux_word); -static symint_t add_aux_sym_rndx (int file_index, symint_t sym_index); -static symint_t add_aux_sym_tir (type_info_t *t, - hash_state_t state, - thash_t **hash_tbl); -static tag_t *get_tag (const char *tag, localsym_t *sym, bt_t basic_type); -static void add_unknown_tag (tag_t *ptag); -static void add_procedure (char *func); -static void add_file (const char *file_name, int indx, int fake); -#ifdef ECOFF_DEBUG -static char *sc_to_string (sc_t storage_class); -static char *st_to_string (st_t symbol_type); -#endif -static void mark_stabs (int); -static char *ecoff_add_bytes (char **buf, char **bufend, - char *bufptr, unsigned long need); -static unsigned long ecoff_padding_adjust - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset, char **bufptrptr); -static unsigned long ecoff_build_lineno - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset, long *linecntptr); -static unsigned long ecoff_build_symbols - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset); -static unsigned long ecoff_build_procs - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset); -static unsigned long ecoff_build_aux - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset); -static unsigned long ecoff_build_strings (char **buf, char **bufend, - unsigned long offset, - varray_t *vp); -static unsigned long ecoff_build_ss - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset); -static unsigned long ecoff_build_fdr - (const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset); -static void ecoff_setup_ext (void); -static page_type *allocate_cluster (unsigned long npages); -static page_type *allocate_page (void); -static scope_t *allocate_scope (void); -static void free_scope (scope_t *ptr); -static vlinks_t *allocate_vlinks (void); -static shash_t *allocate_shash (void); -static thash_t *allocate_thash (void); -static tag_t *allocate_tag (void); -static void free_tag (tag_t *ptr); -static forward_t *allocate_forward (void); -static thead_t *allocate_thead (void); -static void free_thead (thead_t *ptr); -static lineno_list_t *allocate_lineno_list (void); - -/* This function should be called when the assembler starts up. */ - -void -ecoff_read_begin_hook (void) -{ - tag_hash = hash_new (); - top_tag_head = allocate_thead (); - top_tag_head->first_tag = (tag_t *) NULL; - top_tag_head->free = (thead_t *) NULL; - top_tag_head->prev = cur_tag_head; - cur_tag_head = top_tag_head; -} - -/* This function should be called when a symbol is created. */ - -void -ecoff_symbol_new_hook (symbolS *symbolP) -{ - OBJ_SYMFIELD_TYPE *obj; - - /* Make sure that we have a file pointer, but only if we have seen a - file. If we haven't seen a file, then this is a probably special - symbol created by md_begin which may required special handling at - some point. Creating a dummy file with a dummy name is certainly - wrong. */ - if (cur_file_ptr == (efdr_t *) NULL - && seen_at_least_1_file ()) - add_file ((const char *) NULL, 0, 1); - obj = symbol_get_obj (symbolP); - obj->ecoff_file = cur_file_ptr; - obj->ecoff_symbol = NULL; - obj->ecoff_extern_size = 0; -} - -void -ecoff_symbol_clone_hook (symbolS *newsymP, symbolS *orgsymP) -{ - OBJ_SYMFIELD_TYPE *n, *o; - - n = symbol_get_obj (newsymP); - o = symbol_get_obj (orgsymP); - memcpy (n, o, sizeof *n); -} - -/* Add a page to a varray object. */ - -static void -add_varray_page (varray_t *vp /* varray to add page to */) -{ - vlinks_t *new_links = allocate_vlinks (); - -#ifdef MALLOC_CHECK - if (vp->object_size > 1) - new_links->datum = (page_type *) xcalloc (1, vp->object_size); - else -#endif - new_links->datum = allocate_page (); - - alloc_counts[(int) alloc_type_varray].total_alloc++; - alloc_counts[(int) alloc_type_varray].total_pages++; - - new_links->start_index = vp->num_allocated; - vp->objects_last_page = 0; - - if (vp->first == (vlinks_t *) NULL) /* first allocation? */ - vp->first = vp->last = new_links; - else - { /* 2nd or greater allocation */ - new_links->prev = vp->last; - vp->last->next = new_links; - vp->last = new_links; - } -} - -/* Add a string (and null pad) to one of the string tables. */ - -static symint_t -add_string (varray_t *vp, /* string obstack */ - struct hash_control *hash_tbl, /* ptr to hash table */ - const char *str, /* string */ - shash_t **ret_hash /* return hash pointer */) -{ - register unsigned long len = strlen (str); - register shash_t *hash_ptr; - - if (len >= PAGE_USIZE) - as_fatal (_("string too big (%lu bytes)"), len); - - hash_ptr = (shash_t *) hash_find (hash_tbl, str); - if (hash_ptr == (shash_t *) NULL) - { - register const char *err; - - if (vp->objects_last_page + len >= PAGE_USIZE) - { - vp->num_allocated = - ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; - add_varray_page (vp); - } - - hash_ptr = allocate_shash (); - hash_ptr->indx = vp->num_allocated; - - hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; - - vp->objects_last_page += len + 1; - vp->num_allocated += len + 1; - - strcpy (hash_ptr->string, str); - - err = hash_insert (hash_tbl, str, (char *) hash_ptr); - if (err) - as_fatal (_("inserting \"%s\" into string hash table: %s"), - str, err); - } - - if (ret_hash != (shash_t **) NULL) - *ret_hash = hash_ptr; - - return hash_ptr->indx; -} - -/* Add debugging information for a symbol. */ - -static localsym_t * -add_ecoff_symbol (const char *str, /* symbol name */ - st_t type, /* symbol type */ - sc_t storage, /* storage class */ - symbolS *sym_value, /* associated symbol. */ - bfd_vma addend, /* addend to sym_value. */ - symint_t value, /* value of symbol */ - symint_t indx /* index to local/aux. syms */) -{ - localsym_t *psym; - register scope_t *pscope; - register thead_t *ptag_head; - register tag_t *ptag; - register tag_t *ptag_next; - register varray_t *vp; - register int scope_delta = 0; - shash_t *hash_ptr = (shash_t *) NULL; - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - vp = &cur_file_ptr->symbols; - - if (vp->objects_last_page == vp->objects_per_page) - add_varray_page (vp); - - psym = &vp->last->datum->sym[vp->objects_last_page++]; - - if (str == (const char *) NULL && sym_value != (symbolS *) NULL) - psym->name = S_GET_NAME (sym_value); - else - psym->name = str; - psym->as_sym = sym_value; - if (sym_value != (symbolS *) NULL) - symbol_get_obj (sym_value)->ecoff_symbol = psym; - psym->addend = addend; - psym->file_ptr = cur_file_ptr; - psym->proc_ptr = cur_proc_ptr; - psym->begin_ptr = (localsym_t *) NULL; - psym->index_ptr = (aux_t *) NULL; - psym->forward_ref = (forward_t *) NULL; - psym->sym_index = -1; - memset (&psym->ecoff_sym, 0, sizeof (EXTR)); - psym->ecoff_sym.asym.value = value; - psym->ecoff_sym.asym.st = (unsigned) type; - psym->ecoff_sym.asym.sc = (unsigned) storage; - psym->ecoff_sym.asym.index = indx; - - /* If there is an associated symbol, we wait until the end of the - assembly before deciding where to put the name (it may be just an - external symbol). Otherwise, this is just a debugging symbol and - the name should go with the current file. */ - if (sym_value == (symbolS *) NULL) - psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) - ? 0 - : add_string (&cur_file_ptr->strings, - cur_file_ptr->str_hash, - str, - &hash_ptr)); - - ++vp->num_allocated; - - if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) - return psym; - - /* Save the symbol within the hash table if this is a static - item, and it has a name. */ - if (hash_ptr != (shash_t *) NULL - && (type == st_Global || type == st_Static || type == st_Label - || type == st_Proc || type == st_StaticProc)) - hash_ptr->sym_ptr = psym; - - /* push or pop a scope if appropriate. */ - switch (type) - { - default: - break; - - case st_File: /* beginning of file */ - case st_Proc: /* procedure */ - case st_StaticProc: /* static procedure */ - case st_Block: /* begin scope */ - pscope = allocate_scope (); - pscope->prev = cur_file_ptr->cur_scope; - pscope->lsym = psym; - pscope->type = type; - cur_file_ptr->cur_scope = pscope; - - if (type != st_File) - scope_delta = 1; - - /* For every block type except file, struct, union, or - enumeration blocks, push a level on the tag stack. We omit - file types, so that tags can span file boundaries. */ - if (type != st_File && storage != sc_Info) - { - ptag_head = allocate_thead (); - ptag_head->first_tag = 0; - ptag_head->prev = cur_tag_head; - cur_tag_head = ptag_head; - } - break; - - case st_End: - pscope = cur_file_ptr->cur_scope; - if (pscope == (scope_t *) NULL) - as_fatal (_("too many st_End's")); - else - { - st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; - - psym->begin_ptr = pscope->lsym; - - if (begin_type != st_File) - scope_delta = -1; - - /* Except for file, structure, union, or enumeration end - blocks remove all tags created within this scope. */ - if (begin_type != st_File && storage != sc_Info) - { - ptag_head = cur_tag_head; - cur_tag_head = ptag_head->prev; - - for (ptag = ptag_head->first_tag; - ptag != (tag_t *) NULL; - ptag = ptag_next) - { - if (ptag->forward_ref != (forward_t *) NULL) - add_unknown_tag (ptag); - - ptag_next = ptag->same_block; - ptag->hash_ptr->tag_ptr = ptag->same_name; - free_tag (ptag); - } - - free_thead (ptag_head); - } - - cur_file_ptr->cur_scope = pscope->prev; - - /* block begin gets next sym #. This is set when we know - the symbol index value. */ - - /* Functions push two or more aux words as follows: - 1st word: index+1 of the end symbol (filled in later). - 2nd word: type of the function (plus any aux words needed). - Also, tie the external pointer back to the function begin symbol. */ - if (begin_type != st_File && begin_type != st_Block) - { - symint_t ty; - varray_t *svp = &cur_file_ptr->aux_syms; - - pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); - pscope->lsym->index_ptr = - &svp->last->datum->aux[svp->objects_last_page - 1]; - ty = add_aux_sym_tir (&last_func_type_info, - hash_no, - &cur_file_ptr->thash_head[0]); - (void) ty; -/* This seems to be unnecessary. I'm not even sure what it is - * intended to do. It's from mips-tfile. - * if (last_func_sym_value != (symbolS *) NULL) - * { - * last_func_sym_value->ifd = cur_file_ptr->file_index; - * last_func_sym_value->index = ty; - * } - */ - } - - free_scope (pscope); - } - } - - cur_file_ptr->nested_scopes += scope_delta; - -#ifdef ECOFF_DEBUG - if (debug && type != st_File - && (debug > 2 || type == st_Block || type == st_End - || type == st_Proc || type == st_StaticProc)) - { - char *sc_str = sc_to_string (storage); - char *st_str = st_to_string (type); - int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); - - fprintf (stderr, - "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", - value, depth, sc_str); - - if (str_start && str_end_p1 - str_start > 0) - fprintf (stderr, " st= %-11s name= %.*s\n", - st_str, str_end_p1 - str_start, str_start); - else - { - unsigned long len = strlen (st_str); - fprintf (stderr, " st= %.*s\n", len - 1, st_str); - } - } -#endif - - return psym; -} - -/* Add an auxiliary symbol (passing a symint). This is actually used - for integral aux types, not just symints. */ - -static symint_t -add_aux_sym_symint (symint_t aux_word /* auxiliary information word */) -{ - register varray_t *vp; - register aux_t *aux_ptr; - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - vp = &cur_file_ptr->aux_syms; - - if (vp->objects_last_page == vp->objects_per_page) - add_varray_page (vp); - - aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; - aux_ptr->type = aux_isym; - aux_ptr->data.isym = aux_word; - - return vp->num_allocated++; -} - -/* Add an auxiliary symbol (passing a file/symbol index combo). */ - -static symint_t -add_aux_sym_rndx (int file_index, symint_t sym_index) -{ - register varray_t *vp; - register aux_t *aux_ptr; - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - vp = &cur_file_ptr->aux_syms; - - if (vp->objects_last_page == vp->objects_per_page) - add_varray_page (vp); - - aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; - aux_ptr->type = aux_rndx; - aux_ptr->data.rndx.rfd = file_index; - aux_ptr->data.rndx.index = sym_index; - - return vp->num_allocated++; -} - -/* Add an auxiliary symbol (passing the basic type and possibly - type qualifiers). */ - -static symint_t -add_aux_sym_tir (type_info_t *t, /* current type information */ - hash_state_t state, /* whether to hash type or not */ - thash_t **hash_tbl /* pointer to hash table to use */) -{ - register varray_t *vp; - register aux_t *aux_ptr; - static AUXU init_aux; - symint_t ret; - int i; - AUXU aux; - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - vp = &cur_file_ptr->aux_syms; - - aux = init_aux; - aux.ti.bt = (int) t->basic_type; - aux.ti.continued = 0; - aux.ti.fBitfield = t->bitfield; - - aux.ti.tq0 = (int) t->type_qualifiers[0]; - aux.ti.tq1 = (int) t->type_qualifiers[1]; - aux.ti.tq2 = (int) t->type_qualifiers[2]; - aux.ti.tq3 = (int) t->type_qualifiers[3]; - aux.ti.tq4 = (int) t->type_qualifiers[4]; - aux.ti.tq5 = (int) t->type_qualifiers[5]; - - /* For anything that adds additional information, we must not hash, - so check here, and reset our state. */ - - if (state != hash_no - && (t->type_qualifiers[0] == tq_Array - || t->type_qualifiers[1] == tq_Array - || t->type_qualifiers[2] == tq_Array - || t->type_qualifiers[3] == tq_Array - || t->type_qualifiers[4] == tq_Array - || t->type_qualifiers[5] == tq_Array - || t->basic_type == bt_Struct - || t->basic_type == bt_Union - || t->basic_type == bt_Enum - || t->bitfield - || t->num_dims > 0)) - state = hash_no; - - /* See if we can hash this type, and save some space, but some types - can't be hashed (because they contain arrays or continuations), - and others can be put into the hash list, but cannot use existing - types because other aux entries precede this one. */ - - if (state != hash_no) - { - register thash_t *hash_ptr; - register symint_t hi; - - hi = aux.isym & ((1 << HASHBITS) - 1); - hi %= THASH_SIZE; - - for (hash_ptr = hash_tbl[hi]; - hash_ptr != (thash_t *)0; - hash_ptr = hash_ptr->next) - { - if (aux.isym == hash_ptr->type.isym) - break; - } - - if (hash_ptr != (thash_t *) NULL && state == hash_yes) - return hash_ptr->indx; - - if (hash_ptr == (thash_t *) NULL) - { - hash_ptr = allocate_thash (); - hash_ptr->next = hash_tbl[hi]; - hash_ptr->type = aux; - hash_ptr->indx = vp->num_allocated; - hash_tbl[hi] = hash_ptr; - } - } - - /* Everything is set up, add the aux symbol. */ - if (vp->objects_last_page == vp->objects_per_page) - add_varray_page (vp); - - aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; - aux_ptr->type = aux_tir; - aux_ptr->data = aux; - - ret = vp->num_allocated++; - - /* Add bitfield length if it exists. - - NOTE: Mips documentation claims bitfield goes at the end of the - AUX record, but the DECstation compiler emits it here. - (This would only make a difference for enum bitfields.) - - Also note: We use the last size given since gcc may emit 2 - for an enum bitfield. */ - - if (t->bitfield) - (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]); - - /* Add tag information if needed. Structure, union, and enum - references add 2 aux symbols: a [file index, symbol index] - pointer to the structure type, and the current file index. */ - - if (t->basic_type == bt_Struct - || t->basic_type == bt_Union - || t->basic_type == bt_Enum) - { - register symint_t file_index = t->tag_ptr->ifd; - register localsym_t *sym = t->tag_ptr->sym; - register forward_t *forward_ref = allocate_forward (); - - if (sym != (localsym_t *) NULL) - { - forward_ref->next = sym->forward_ref; - sym->forward_ref = forward_ref; - } - else - { - forward_ref->next = t->tag_ptr->forward_ref; - t->tag_ptr->forward_ref = forward_ref; - } - - (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); - forward_ref->index_ptr - = &vp->last->datum->aux[vp->objects_last_page - 1]; - - (void) add_aux_sym_symint (file_index); - forward_ref->ifd_ptr - = &vp->last->datum->aux[vp->objects_last_page - 1]; - } - - /* Add information about array bounds if they exist. */ - for (i = 0; i < t->num_dims; i++) - { - (void) add_aux_sym_rndx (ST_RFDESCAPE, - cur_file_ptr->int_type); - - (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ - (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ - (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ - (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ - ? 0 - : (t->sizes[i] * 8) / t->dimensions[i]); - }; - - /* NOTE: Mips documentation claims that the bitfield width goes here. - But it needs to be emitted earlier. */ - - return ret; -} - -/* Add a tag to the tag table (unless it already exists). */ - -static tag_t * -get_tag (const char *tag, /* tag name */ - localsym_t *sym, /* tag start block */ - bt_t basic_type /* bt_Struct, bt_Union, or bt_Enum */) -{ - shash_t *hash_ptr; - const char *err; - tag_t *tag_ptr; - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - hash_ptr = (shash_t *) hash_find (tag_hash, tag); - - if (hash_ptr != (shash_t *) NULL - && hash_ptr->tag_ptr != (tag_t *) NULL) - { - tag_ptr = hash_ptr->tag_ptr; - if (sym != (localsym_t *) NULL) - { - tag_ptr->basic_type = basic_type; - tag_ptr->ifd = cur_file_ptr->file_index; - tag_ptr->sym = sym; - } - return tag_ptr; - } - - if (hash_ptr == (shash_t *) NULL) - { - char *perm; - - perm = xstrdup (tag); - hash_ptr = allocate_shash (); - err = hash_insert (tag_hash, perm, (char *) hash_ptr); - if (err) - as_fatal (_("inserting \"%s\" into tag hash table: %s"), - tag, err); - hash_ptr->string = perm; - } - - tag_ptr = allocate_tag (); - tag_ptr->forward_ref = (forward_t *) NULL; - tag_ptr->hash_ptr = hash_ptr; - tag_ptr->same_name = hash_ptr->tag_ptr; - tag_ptr->basic_type = basic_type; - tag_ptr->sym = sym; - tag_ptr->ifd = ((sym == (localsym_t *) NULL) - ? (symint_t) -1 - : cur_file_ptr->file_index); - tag_ptr->same_block = cur_tag_head->first_tag; - - cur_tag_head->first_tag = tag_ptr; - hash_ptr->tag_ptr = tag_ptr; - - return tag_ptr; -} - -/* Add an unknown {struct, union, enum} tag. */ - -static void -add_unknown_tag (tag_t *ptag /* pointer to tag information */) -{ - shash_t *hash_ptr = ptag->hash_ptr; - char *name = hash_ptr->string; - localsym_t *sym; - forward_t **pf; - -#ifdef ECOFF_DEBUG - if (debug > 1) - { - char *agg_type = "{unknown aggregate type}"; - switch (ptag->basic_type) - { - case bt_Struct: agg_type = "struct"; break; - case bt_Union: agg_type = "union"; break; - case bt_Enum: agg_type = "enum"; break; - default: break; - } - - fprintf (stderr, "unknown %s %.*s found\n", agg_type, - hash_ptr->len, name_start); - } -#endif - - sym = add_ecoff_symbol (name, - st_Block, - sc_Info, - (symbolS *) NULL, - (bfd_vma) 0, - (symint_t) 0, - (symint_t) 0); - - (void) add_ecoff_symbol (name, - st_End, - sc_Info, - (symbolS *) NULL, - (bfd_vma) 0, - (symint_t) 0, - (symint_t) 0); - - for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) - ; - *pf = ptag->forward_ref; -} - -/* Add a procedure to the current file's list of procedures, and record - this is the current procedure. */ - -static void -add_procedure (char *func /* func name */) -{ - register varray_t *vp; - register proc_t *new_proc_ptr; - symbolS *sym; - -#ifdef ECOFF_DEBUG - if (debug) - fputc ('\n', stderr); -#endif - - if (cur_file_ptr == (efdr_t *) NULL) - as_fatal (_("no current file pointer")); - - vp = &cur_file_ptr->procs; - - if (vp->objects_last_page == vp->objects_per_page) - add_varray_page (vp); - - cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++]; - - if (first_proc_ptr == (proc_t *) NULL) - first_proc_ptr = new_proc_ptr; - - vp->num_allocated++; - - new_proc_ptr->pdr.isym = -1; - new_proc_ptr->pdr.iline = -1; - new_proc_ptr->pdr.lnLow = -1; - new_proc_ptr->pdr.lnHigh = -1; - - /* Set the BSF_FUNCTION flag for the symbol. */ - sym = symbol_find_or_make (func); - symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; - - /* Push the start of the function. */ - new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, - sym, (bfd_vma) 0, (symint_t) 0, - (symint_t) 0); - - ++proc_cnt; - - /* Fill in the linenos preceding the .ent, if any. */ - if (noproc_lineno != (lineno_list_t *) NULL) - { - lineno_list_t *l; - - for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) - l->proc = new_proc_ptr; - *last_lineno_ptr = noproc_lineno; - while (*last_lineno_ptr != NULL) - { - last_lineno = *last_lineno_ptr; - last_lineno_ptr = &last_lineno->next; - } - noproc_lineno = (lineno_list_t *) NULL; - } -} - -symbolS * -ecoff_get_cur_proc_sym (void) -{ - return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL); -} - -/* Add a new filename, and set up all of the file relative - virtual arrays (strings, symbols, aux syms, etc.). Record - where the current file structure lives. */ - -static void -add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake) -{ - register int first_ch; - register efdr_t *fil_ptr; - -#ifdef ECOFF_DEBUG - if (debug) - fprintf (stderr, "\tfile\t%.*s\n", len, file_start); -#endif - - /* If the file name is NULL, then no .file symbol appeared, and we - want to use the actual file name. */ - if (file_name == (const char *) NULL) - { - char *file; - - if (first_file != (efdr_t *) NULL) - as_fatal (_("fake .file after real one")); - as_where (&file, (unsigned int *) NULL); - file_name = (const char *) file; - - /* Automatically generate ECOFF debugging information, since I - think that's what other ECOFF assemblers do. We don't do - this if we see a .file directive with a string, since that - implies that some sort of debugging information is being - provided. */ - if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED) - debug_type = DEBUG_ECOFF; - } - else if (debug_type == DEBUG_UNSPECIFIED) - debug_type = DEBUG_NONE; - -#ifndef NO_LISTING - if (listing) - listing_source_file (file_name); -#endif - - current_stabs_filename = file_name; - - /* If we're creating stabs, then we don't actually make a new FDR. - Instead, we just create a stabs symbol. */ - if (stabs_seen) - { - (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, - symbol_new ("L0\001", now_seg, - (valueT) frag_now_fix (), - frag_now), - (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL)); - return; - } - - first_ch = *file_name; - - /* FIXME: We can't safely merge files which have line number - information (fMerge will be zero in this case). Otherwise, we - get incorrect line number debugging info. See for instance - ecoff_build_lineno, which will end up setting all file->fdr.* - fields multiple times, resulting in incorrect debug info. In - order to make this work right, all line number and symbol info - for the same source file has to be adjacent in the object file, - so that a single file descriptor can be used to point to them. - This would require maintaining file specific lists of line - numbers and symbols for each file, so that they can be merged - together (or output together) when two .file pseudo-ops are - merged into one file descriptor. */ - - /* See if the file has already been created. */ - for (fil_ptr = first_file; - fil_ptr != (efdr_t *) NULL; - fil_ptr = fil_ptr->next_file) - { - if (first_ch == fil_ptr->name[0] - && filename_cmp (file_name, fil_ptr->name) == 0 - && fil_ptr->fdr.fMerge) - { - cur_file_ptr = fil_ptr; - if (! fake) - cur_file_ptr->fake = 0; - break; - } - } - - /* If this is a new file, create it. */ - if (fil_ptr == (efdr_t *) NULL) - { - if (file_desc.objects_last_page == file_desc.objects_per_page) - add_varray_page (&file_desc); - - fil_ptr = cur_file_ptr = - &file_desc.last->datum->file[file_desc.objects_last_page++]; - *fil_ptr = init_file; - - fil_ptr->file_index = current_file_idx++; - ++file_desc.num_allocated; - - fil_ptr->fake = fake; - - /* Allocate the string hash table. */ - fil_ptr->str_hash = hash_new (); - - /* Make sure 0 byte in string table is null */ - add_string (&fil_ptr->strings, - fil_ptr->str_hash, - "", - (shash_t **)0); - - if (strlen (file_name) > PAGE_USIZE - 2) - as_fatal (_("filename goes over one page boundary")); - - /* Push the start of the filename. We assume that the filename - will be stored at string offset 1. */ - (void) add_ecoff_symbol (file_name, st_File, sc_Text, - (symbolS *) NULL, (bfd_vma) 0, - (symint_t) 0, (symint_t) 0); - fil_ptr->fdr.rss = 1; - fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; - - /* Update the linked list of file descriptors. */ - *last_file_ptr = fil_ptr; - last_file_ptr = &fil_ptr->next_file; - - /* Add void & int types to the file (void should be first to catch - errant 0's within the index fields). */ - fil_ptr->void_type = add_aux_sym_tir (&void_type_info, - hash_yes, - &cur_file_ptr->thash_head[0]); - - fil_ptr->int_type = add_aux_sym_tir (&int_type_info, - hash_yes, - &cur_file_ptr->thash_head[0]); - } -} - -/* This function is called when the assembler notices a preprocessor - directive switching to a new file. This will not happen in - compiler output, only in hand coded assembler. */ - -void -ecoff_new_file (const char *name, int appfile ATTRIBUTE_UNUSED) -{ - if (cur_file_ptr != NULL && filename_cmp (cur_file_ptr->name, name) == 0) - return; - add_file (name, 0, 0); - - /* This is a hand coded assembler file, so automatically turn on - debugging information. */ - if (debug_type == DEBUG_UNSPECIFIED) - debug_type = DEBUG_ECOFF; -} - -#ifdef ECOFF_DEBUG - -/* Convert storage class to string. */ - -static char * -sc_to_string (storage_class) - sc_t storage_class; -{ - switch (storage_class) - { - case sc_Nil: return "Nil,"; - case sc_Text: return "Text,"; - case sc_Data: return "Data,"; - case sc_Bss: return "Bss,"; - case sc_Register: return "Register,"; - case sc_Abs: return "Abs,"; - case sc_Undefined: return "Undefined,"; - case sc_CdbLocal: return "CdbLocal,"; - case sc_Bits: return "Bits,"; - case sc_CdbSystem: return "CdbSystem,"; - case sc_RegImage: return "RegImage,"; - case sc_Info: return "Info,"; - case sc_UserStruct: return "UserStruct,"; - case sc_SData: return "SData,"; - case sc_SBss: return "SBss,"; - case sc_RData: return "RData,"; - case sc_Var: return "Var,"; - case sc_Common: return "Common,"; - case sc_SCommon: return "SCommon,"; - case sc_VarRegister: return "VarRegister,"; - case sc_Variant: return "Variant,"; - case sc_SUndefined: return "SUndefined,"; - case sc_Init: return "Init,"; - case sc_Max: return "Max,"; - } - - return "???,"; -} - -#endif /* DEBUG */ - -#ifdef ECOFF_DEBUG - -/* Convert symbol type to string. */ - -static char * -st_to_string (symbol_type) - st_t symbol_type; -{ - switch (symbol_type) - { - case st_Nil: return "Nil,"; - case st_Global: return "Global,"; - case st_Static: return "Static,"; - case st_Param: return "Param,"; - case st_Local: return "Local,"; - case st_Label: return "Label,"; - case st_Proc: return "Proc,"; - case st_Block: return "Block,"; - case st_End: return "End,"; - case st_Member: return "Member,"; - case st_Typedef: return "Typedef,"; - case st_File: return "File,"; - case st_RegReloc: return "RegReloc,"; - case st_Forward: return "Forward,"; - case st_StaticProc: return "StaticProc,"; - case st_Constant: return "Constant,"; - case st_Str: return "String,"; - case st_Number: return "Number,"; - case st_Expr: return "Expr,"; - case st_Type: return "Type,"; - case st_Max: return "Max,"; - } - - return "???,"; -} - -#endif /* DEBUG */ - -/* Parse .begin directives which have a label as the first argument - which gives the location of the start of the block. */ - -void -ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - - if (cur_file_ptr == (efdr_t *) NULL) - { - as_warn (_(".begin directive without a preceding .file directive")); - demand_empty_rest_of_line (); - return; - } - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".begin directive without a preceding .ent directive")); - demand_empty_rest_of_line (); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, - symbol_find_or_make (name), - (bfd_vma) 0, (symint_t) 0, (symint_t) 0); - - *input_line_pointer = name_end; - - /* The line number follows, but we don't use it. */ - (void) get_absolute_expression (); - demand_empty_rest_of_line (); -} - -/* Parse .bend directives which have a label as the first argument - which gives the location of the end of the block. */ - -void -ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - symbolS *endsym; - - if (cur_file_ptr == (efdr_t *) NULL) - { - as_warn (_(".bend directive without a preceding .file directive")); - demand_empty_rest_of_line (); - return; - } - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".bend directive without a preceding .ent directive")); - demand_empty_rest_of_line (); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - /* The value is the distance between the .bend directive and the - corresponding symbol. We fill in the offset when we write out - the symbol. */ - endsym = symbol_find (name); - if (endsym == (symbolS *) NULL) - as_warn (_(".bend directive names unknown symbol")); - else - (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, - (bfd_vma) 0, (symint_t) 0, (symint_t) 0); - - *input_line_pointer = name_end; - - /* The line number follows, but we don't use it. */ - (void) get_absolute_expression (); - demand_empty_rest_of_line (); -} - -/* COFF debugging information is provided as a series of directives - (.def, .scl, etc.). We build up information as we read the - directives in the following static variables, and file it away when - we reach the .endef directive. */ -static char *coff_sym_name; -static type_info_t coff_type; -static sc_t coff_storage_class; -static st_t coff_symbol_typ; -static int coff_is_function; -static char *coff_tag; -static valueT coff_value; -static symbolS *coff_sym_value; -static bfd_vma coff_sym_addend; -static int coff_inside_enumeration; - -/* Handle a .def directive: start defining a symbol. */ - -void -ecoff_directive_def (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - - ecoff_debugging_seen = 1; - - SKIP_WHITESPACE (); - - name = input_line_pointer; - name_end = get_symbol_end (); - - if (coff_sym_name != (char *) NULL) - as_warn (_(".def pseudo-op used inside of .def/.endef; ignored")); - else if (*name == '\0') - as_warn (_("empty symbol name in .def; ignored")); - else - { - if (coff_sym_name != (char *) NULL) - free (coff_sym_name); - if (coff_tag != (char *) NULL) - free (coff_tag); - - coff_sym_name = xstrdup (name); - coff_type = type_info_init; - coff_storage_class = sc_Nil; - coff_symbol_typ = st_Nil; - coff_is_function = 0; - coff_tag = (char *) NULL; - coff_value = 0; - coff_sym_value = (symbolS *) NULL; - coff_sym_addend = 0; - } - - *input_line_pointer = name_end; - - demand_empty_rest_of_line (); -} - -/* Handle a .dim directive, used to give dimensions for an array. The - arguments are comma separated numbers. mips-tfile assumes that - there will not be more than 6 dimensions, and gdb won't read any - more than that anyhow, so I will also make that assumption. */ - -void -ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED) -{ - int dimens[N_TQ]; - int i; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - for (i = 0; i < N_TQ; i++) - { - SKIP_WHITESPACE (); - dimens[i] = get_absolute_expression (); - if (*input_line_pointer == ',') - ++input_line_pointer; - else - { - if (*input_line_pointer != '\n' - && *input_line_pointer != ';') - as_warn (_("badly formed .dim directive")); - break; - } - } - - if (i == N_TQ) - --i; - - /* The dimensions are stored away in reverse order. */ - for (; i >= 0; i--) - { - if (coff_type.num_dims >= N_TQ) - { - as_warn (_("too many .dim entries")); - break; - } - coff_type.dimensions[coff_type.num_dims] = dimens[i]; - ++coff_type.num_dims; - } - - demand_empty_rest_of_line (); -} - -/* Handle a .scl directive, which sets the COFF storage class of the - symbol. */ - -void -ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED) -{ - long val; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - val = get_absolute_expression (); - - coff_symbol_typ = map_coff_sym_type[val]; - coff_storage_class = map_coff_storage[val]; - - demand_empty_rest_of_line (); -} - -/* Handle a .size directive. For some reason mips-tfile.c thinks that - .size can have multiple arguments. We humor it, although gcc will - never generate more than one argument. */ - -void -ecoff_directive_size (int ignore ATTRIBUTE_UNUSED) -{ - int sizes[N_TQ]; - int i; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".size pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - for (i = 0; i < N_TQ; i++) - { - SKIP_WHITESPACE (); - sizes[i] = get_absolute_expression (); - if (*input_line_pointer == ',') - ++input_line_pointer; - else - { - if (*input_line_pointer != '\n' - && *input_line_pointer != ';') - as_warn (_("badly formed .size directive")); - break; - } - } - - if (i == N_TQ) - --i; - - /* The sizes are stored away in reverse order. */ - for (; i >= 0; i--) - { - if (coff_type.num_sizes >= N_TQ) - { - as_warn (_("too many .size entries")); - break; - } - coff_type.sizes[coff_type.num_sizes] = sizes[i]; - ++coff_type.num_sizes; - } - - demand_empty_rest_of_line (); -} - -/* Handle the .type directive, which gives the COFF type of the - symbol. */ - -void -ecoff_directive_type (int ignore ATTRIBUTE_UNUSED) -{ - long val; - tq_t *tq_ptr; - tq_t *tq_shft; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".type pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - val = get_absolute_expression (); - - coff_type.orig_type = BTYPE (val); - coff_type.basic_type = map_coff_types[coff_type.orig_type]; - - tq_ptr = &coff_type.type_qualifiers[N_TQ]; - while (val & ~N_BTMASK) - { - if (tq_ptr == &coff_type.type_qualifiers[0]) - { - /* FIXME: We could handle this by setting the continued bit. - There would still be a limit: the .type argument can not - be infinite. */ - as_warn (_("the type of %s is too complex; it will be simplified"), - coff_sym_name); - break; - } - if (ISPTR (val)) - *--tq_ptr = tq_Ptr; - else if (ISFCN (val)) - *--tq_ptr = tq_Proc; - else if (ISARY (val)) - *--tq_ptr = tq_Array; - else - as_fatal (_("Unrecognized .type argument")); - - val = DECREF (val); - } - - tq_shft = &coff_type.type_qualifiers[0]; - while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) - *tq_shft++ = *tq_ptr++; - - if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) - { - /* If this is a function, ignore it, so that we don't get two - entries (one from the .ent, and one for the .def that - precedes it). Save the type information so that the end - block can properly add it after the begin block index. For - MIPS knows what reason, we must strip off the function type - at this point. */ - coff_is_function = 1; - tq_shft[-1] = tq_Nil; - } - - while (tq_shft != &coff_type.type_qualifiers[N_TQ]) - *tq_shft++ = tq_Nil; - - demand_empty_rest_of_line (); -} - -/* Handle the .tag directive, which gives the name of a structure, - union or enum. */ - -void -ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - coff_tag = xstrdup (name); - - *input_line_pointer = name_end; - - demand_empty_rest_of_line (); -} - -/* Handle the .val directive, which gives the value of the symbol. It - may be the name of a static or global symbol. */ - -void -ecoff_directive_val (int ignore ATTRIBUTE_UNUSED) -{ - expressionS exp; - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".val pseudo-op used outside of .def/.endef; ignored")); - demand_empty_rest_of_line (); - return; - } - - expression (&exp); - if (exp.X_op != O_constant && exp.X_op != O_symbol) - { - as_bad (_(".val expression is too complex")); - demand_empty_rest_of_line (); - return; - } - - if (exp.X_op == O_constant) - coff_value = exp.X_add_number; - else - { - coff_sym_value = exp.X_add_symbol; - coff_sym_addend = exp.X_add_number; - } - - demand_empty_rest_of_line (); -} - -/* Handle the .endef directive, which terminates processing of COFF - debugging information for a symbol. */ - -void -ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - symint_t indx; - localsym_t *sym; - - demand_empty_rest_of_line (); - - if (coff_sym_name == (char *) NULL) - { - as_warn (_(".endef pseudo-op used before .def; ignored")); - return; - } - - name = coff_sym_name; - coff_sym_name = (char *) NULL; - - /* If the symbol is a static or external, we have already gotten the - appropriate type and class, so make sure we don't override those - values. This is needed because there are some type and classes - that are not in COFF, such as short data, etc. */ - if (coff_sym_value != (symbolS *) NULL) - { - coff_symbol_typ = st_Nil; - coff_storage_class = sc_Nil; - } - - coff_type.extra_sizes = coff_tag != (char *) NULL; - if (coff_type.num_dims > 0) - { - int diff = coff_type.num_dims - coff_type.num_sizes; - int i = coff_type.num_dims - 1; - int j; - - if (coff_type.num_sizes != 1 || diff < 0) - { - as_warn (_("bad COFF debugging information")); - return; - } - - /* If this is an array, make sure the same number of dimensions - and sizes were passed, creating extra sizes for multiply - dimensioned arrays if not passed. */ - coff_type.extra_sizes = 0; - if (diff) - { - j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; - while (j >= 0) - { - coff_type.sizes[j] = (((j - diff) >= 0) - ? coff_type.sizes[j - diff] - : 0); - j--; - } - - coff_type.num_sizes = i + 1; - for (i--; i >= 0; i--) - coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0 - ? 0 - : (coff_type.sizes[i + 1] - / coff_type.dimensions[i + 1])); - } - } - else if (coff_symbol_typ == st_Member - && coff_type.num_sizes - coff_type.extra_sizes == 1) - { - /* Is this a bitfield? This is indicated by a structure member - having a size field that isn't an array. */ - coff_type.bitfield = 1; - } - - /* Except for enumeration members & begin/ending of scopes, put the - type word in the aux. symbol table. */ - if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) - indx = 0; - else if (coff_inside_enumeration) - indx = cur_file_ptr->void_type; - else - { - if (coff_type.basic_type == bt_Struct - || coff_type.basic_type == bt_Union - || coff_type.basic_type == bt_Enum) - { - if (coff_tag == (char *) NULL) - { - as_warn (_("no tag specified for %s"), name); - return; - } - - coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, - coff_type.basic_type); - } - - if (coff_is_function) - { - last_func_type_info = coff_type; - last_func_sym_value = coff_sym_value; - return; - } - - indx = add_aux_sym_tir (&coff_type, - hash_yes, - &cur_file_ptr->thash_head[0]); - } - - /* Do any last minute adjustments that are necessary. */ - switch (coff_symbol_typ) - { - default: - break; - - /* For the beginning of structs, unions, and enumerations, the - size info needs to be passed in the value field. */ - case st_Block: - if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes - != 1) - { - as_warn (_("bad COFF debugging information")); - return; - } - else - coff_value = coff_type.sizes[0]; - - coff_inside_enumeration = (coff_type.orig_type == T_ENUM); - break; - - /* For the end of structs, unions, and enumerations, omit the - name which is always ".eos". This needs to be done last, so - that any error reporting above gives the correct name. */ - case st_End: - free (name); - name = (char *) NULL; - coff_value = 0; - coff_inside_enumeration = 0; - break; - - /* Members of structures and unions that aren't bitfields, need - to adjust the value from a byte offset to a bit offset. - Members of enumerations do not have the value adjusted, and - can be distinguished by indx == indexNil. For enumerations, - update the maximum enumeration value. */ - case st_Member: - if (! coff_type.bitfield && ! coff_inside_enumeration) - coff_value *= 8; - - break; - } - - /* Add the symbol. */ - sym = add_ecoff_symbol (name, - coff_symbol_typ, - coff_storage_class, - coff_sym_value, - coff_sym_addend, - (symint_t) coff_value, - indx); - - /* deal with struct, union, and enum tags. */ - if (coff_symbol_typ == st_Block) - { - /* Create or update the tag information. */ - tag_t *tag_ptr = get_tag (name, - sym, - coff_type.basic_type); - forward_t **pf; - - /* Remember any forward references. */ - for (pf = &sym->forward_ref; - *pf != (forward_t *) NULL; - pf = &(*pf)->next) - ; - *pf = tag_ptr->forward_ref; - tag_ptr->forward_ref = (forward_t *) NULL; - } -} - -/* Parse .end directives. */ - -void -ecoff_directive_end (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - symbolS *ent; - - if (cur_file_ptr == (efdr_t *) NULL) - { - as_warn (_(".end directive without a preceding .file directive")); - demand_empty_rest_of_line (); - return; - } - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".end directive without a preceding .ent directive")); - demand_empty_rest_of_line (); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - if (name == input_line_pointer) - { - as_warn (_(".end directive has no name")); - *input_line_pointer = name_end; - demand_empty_rest_of_line (); - return; - } - - /* The value is the distance between the .end directive and the - corresponding symbol. We create a fake symbol to hold the - current location, and put in the offset when we write out the - symbol. */ - ent = symbol_find (name); - if (ent == (symbolS *) NULL) - as_warn (_(".end directive names unknown symbol")); - else - (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, - symbol_new ("L0\001", now_seg, - (valueT) frag_now_fix (), - frag_now), - (bfd_vma) 0, (symint_t) 0, (symint_t) 0); - - cur_proc_ptr = (proc_t *) NULL; - - *input_line_pointer = name_end; - demand_empty_rest_of_line (); -} - -/* Parse .ent directives. */ - -void -ecoff_directive_ent (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - char name_end; - - if (cur_file_ptr == (efdr_t *) NULL) - add_file ((const char *) NULL, 0, 1); - - if (cur_proc_ptr != (proc_t *) NULL) - { - as_warn (_("second .ent directive found before .end directive")); - demand_empty_rest_of_line (); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - if (name == input_line_pointer) - { - as_warn (_(".ent directive has no name")); - *input_line_pointer = name_end; - demand_empty_rest_of_line (); - return; - } - - add_procedure (name); - - *input_line_pointer = name_end; - - /* The .ent directive is sometimes followed by a number. I'm not - really sure what the number means. I don't see any way to store - the information in the PDR. The Irix 4 assembler seems to ignore - the information. */ - SKIP_WHITESPACE (); - if (*input_line_pointer == ',') - { - ++input_line_pointer; - SKIP_WHITESPACE (); - } - if (ISDIGIT (*input_line_pointer) - || *input_line_pointer == '-') - (void) get_absolute_expression (); - - demand_empty_rest_of_line (); -} - -/* Parse .extern directives. */ - -void -ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - int c; - symbolS *symbolp; - valueT size; - - name = input_line_pointer; - c = get_symbol_end (); - symbolp = symbol_find_or_make (name); - *input_line_pointer = c; - - S_SET_EXTERNAL (symbolp); - - if (*input_line_pointer == ',') - ++input_line_pointer; - size = get_absolute_expression (); - - symbol_get_obj (symbolp)->ecoff_extern_size = size; -} - -/* Parse .file directives. */ - -void -ecoff_directive_file (int ignore ATTRIBUTE_UNUSED) -{ - int indx; - char *name; - int len; - - if (cur_proc_ptr != (proc_t *) NULL) - { - as_warn (_("no way to handle .file within .ent/.end section")); - demand_empty_rest_of_line (); - return; - } - - indx = (int) get_absolute_expression (); - - /* FIXME: we don't have to save the name here. */ - name = demand_copy_C_string (&len); - - add_file (name, indx - 1, 0); - - demand_empty_rest_of_line (); -} - -/* Parse .fmask directives. */ - -void -ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED) -{ - long val; - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".fmask outside of .ent")); - demand_empty_rest_of_line (); - return; - } - - if (get_absolute_expression_and_terminator (&val) != ',') - { - as_warn (_("bad .fmask directive")); - --input_line_pointer; - demand_empty_rest_of_line (); - return; - } - - cur_proc_ptr->pdr.fregmask = val; - cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); - - demand_empty_rest_of_line (); -} - -/* Parse .frame directives. */ - -void -ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED) -{ - long val; - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".frame outside of .ent")); - demand_empty_rest_of_line (); - return; - } - - cur_proc_ptr->pdr.framereg = tc_get_register (1); - - SKIP_WHITESPACE (); - if (*input_line_pointer++ != ',' - || get_absolute_expression_and_terminator (&val) != ',') - { - as_warn (_("bad .frame directive")); - --input_line_pointer; - demand_empty_rest_of_line (); - return; - } - - cur_proc_ptr->pdr.frameoffset = val; - - cur_proc_ptr->pdr.pcreg = tc_get_register (0); - - /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to - Sandro. I don't yet know where this value should be stored, if - anywhere. Don't call demand_empty_rest_of_line (). */ - s_ignore (42); -} - -/* Parse .mask directives. */ - -void -ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED) -{ - long val; - - if (cur_proc_ptr == (proc_t *) NULL) - { - as_warn (_(".mask outside of .ent")); - demand_empty_rest_of_line (); - return; - } - - if (get_absolute_expression_and_terminator (&val) != ',') - { - as_warn (_("bad .mask directive")); - --input_line_pointer; - demand_empty_rest_of_line (); - return; - } - - cur_proc_ptr->pdr.regmask = val; - cur_proc_ptr->pdr.regoffset = get_absolute_expression (); - - demand_empty_rest_of_line (); -} - -/* Parse .loc directives. */ - -void -ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED) -{ - lineno_list_t *list; - symint_t lineno; - - if (cur_file_ptr == (efdr_t *) NULL) - { - as_warn (_(".loc before .file")); - demand_empty_rest_of_line (); - return; - } - - if (now_seg != text_section) - { - as_warn (_(".loc outside of .text")); - demand_empty_rest_of_line (); - return; - } - - /* Skip the file number. */ - SKIP_WHITESPACE (); - get_absolute_expression (); - SKIP_WHITESPACE (); - - lineno = get_absolute_expression (); - -#ifndef NO_LISTING - if (listing) - listing_source_line (lineno); -#endif - - /* If we're building stabs, then output a special label rather than - ECOFF line number info. */ - if (stabs_seen) - { - (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, - symbol_new ("L0\001", now_seg, - (valueT) frag_now_fix (), - frag_now), - (bfd_vma) 0, 0, lineno); - return; - } - - list = allocate_lineno_list (); - - list->next = (lineno_list_t *) NULL; - list->file = cur_file_ptr; - list->proc = cur_proc_ptr; - list->frag = frag_now; - list->paddr = frag_now_fix (); - list->lineno = lineno; - - /* We don't want to merge files which have line numbers. */ - cur_file_ptr->fdr.fMerge = 0; - - /* A .loc directive will sometimes appear before a .ent directive, - which means that cur_proc_ptr will be NULL here. Arrange to - patch this up. */ - if (cur_proc_ptr == (proc_t *) NULL) - { - lineno_list_t **pl; - - pl = &noproc_lineno; - while (*pl != (lineno_list_t *) NULL) - pl = &(*pl)->next; - *pl = list; - } - else - { - last_lineno = list; - *last_lineno_ptr = list; - last_lineno_ptr = &list->next; - } -} - -/* The MIPS assembler sometimes inserts nop instructions in the - instruction stream. When this happens, we must patch up the .loc - information so that it points to the instruction after the nop. */ - -void -ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset) -{ - if (last_lineno != NULL - && last_lineno->frag == old_frag - && last_lineno->paddr == old_frag_offset) - { - last_lineno->frag = frag_now; - last_lineno->paddr = frag_now_fix (); - } -} - -/* Make sure the @stabs symbol is emitted. */ - -static void -mark_stabs (int ignore ATTRIBUTE_UNUSED) -{ - if (! stabs_seen) - { - /* Add a dummy @stabs dymbol. */ - stabs_seen = 1; - (void) add_ecoff_symbol (stabs_symbol, st_Nil, sc_Info, - (symbolS *) NULL, - (bfd_vma) 0, (symint_t) -1, - ECOFF_MARK_STAB (0)); - } -} - -/* Parse .weakext directives. */ -#ifndef TC_MIPS -/* For TC_MIPS use the version in tc-mips.c. */ -void -ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED) -{ - char *name; - int c; - symbolS *symbolP; - expressionS exp; - - name = input_line_pointer; - c = get_symbol_end (); - symbolP = symbol_find_or_make (name); - *input_line_pointer = c; - - SKIP_WHITESPACE (); - - if (*input_line_pointer == ',') - { - if (S_IS_DEFINED (symbolP)) - { - as_bad (_("symbol `%s' is already defined"), - S_GET_NAME (symbolP)); - ignore_rest_of_line (); - return; - } - - ++input_line_pointer; - SKIP_WHITESPACE (); - if (! is_end_of_line[(unsigned char) *input_line_pointer]) - { - expression (&exp); - if (exp.X_op != O_symbol) - { - as_bad (_("bad .weakext directive")); - ignore_rest_of_line (); - return; - } - symbol_set_value_expression (symbolP, &exp); - } - } - - S_SET_WEAK (symbolP); - - demand_empty_rest_of_line (); -} -#endif /* not TC_MIPS */ - -/* Handle .stabs directives. The actual parsing routine is done by a - generic routine. This routine is called via OBJ_PROCESS_STAB. - When this is called, input_line_pointer will be pointing at the - value field of the stab. - - .stabs directives have five fields: - "string" a string, encoding the type information. - code a numeric code, defined in <stab.h> - 0 a zero - desc a zero or line number - value a numeric value or an address. - - If the value is relocatable, we transform this into: - iss points as an index into string space - value value from lookup of the name - st st from lookup of the name - sc sc from lookup of the name - index code|CODE_MASK - - If the value is not relocatable, we transform this into: - iss points as an index into string space - value value - st st_Nil - sc sc_Nil - index code|CODE_MASK - - .stabn directives have four fields (string is null): - code a numeric code, defined in <stab.h> - 0 a zero - desc a zero or a line number - value a numeric value or an address. */ - -void -ecoff_stab (segT sec ATTRIBUTE_UNUSED, - int what, - const char *string, - int type, - int other, - int desc) -{ - efdr_t *save_file_ptr = cur_file_ptr; - symbolS *sym; - symint_t value; - bfd_vma addend; - st_t st; - sc_t sc; - symint_t indx; - localsym_t *hold = NULL; - - ecoff_debugging_seen = 1; - - /* We don't handle .stabd. */ - if (what != 's' && what != 'n') - { - as_bad (_(".stab%c is not supported"), what); - return; - } - - /* A .stabn uses a null name, not an empty string. */ - if (what == 'n') - string = NULL; - - /* We ignore the other field. */ - if (other != 0) - as_warn (_(".stab%c: ignoring non-zero other field"), what); - - /* Make sure we have a current file. */ - if (cur_file_ptr == (efdr_t *) NULL) - { - add_file ((const char *) NULL, 0, 1); - save_file_ptr = cur_file_ptr; - } - - /* For stabs in ECOFF, the first symbol must be @stabs. This is a - signal to gdb. */ - if (stabs_seen == 0) - mark_stabs (0); - - /* Line number stabs are handled differently, since they have two - values, the line number and the address of the label. We use the - index field (aka desc) to hold the line number, and the value - field to hold the address. The symbol type is st_Label, which - should be different from the other stabs, so that gdb can - recognize it. */ - if (type == N_SLINE) - { - SYMR dummy_symr; - char *name; - char name_end; - -#ifndef NO_LISTING - if (listing) - listing_source_line ((unsigned int) desc); -#endif - - dummy_symr.index = desc; - if (dummy_symr.index != desc) - { - as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"), - desc, what); - return; - } - - name = input_line_pointer; - name_end = get_symbol_end (); - - sym = symbol_find_or_make (name); - *input_line_pointer = name_end; - - value = 0; - addend = 0; - st = st_Label; - sc = sc_Text; - indx = desc; - } - else - { -#ifndef NO_LISTING - if (listing && (type == N_SO || type == N_SOL)) - listing_source_file (string); -#endif - - if (ISDIGIT (*input_line_pointer) - || *input_line_pointer == '-' - || *input_line_pointer == '+') - { - st = st_Nil; - sc = sc_Nil; - sym = (symbolS *) NULL; - value = get_absolute_expression (); - addend = 0; - } - else if (! is_name_beginner ((unsigned char) *input_line_pointer)) - { - as_warn (_("illegal .stab%c directive, bad character"), what); - return; - } - else - { - expressionS exp; - - sc = sc_Nil; - st = st_Nil; - - expression (&exp); - if (exp.X_op == O_constant) - { - sym = NULL; - value = exp.X_add_number; - addend = 0; - } - else if (exp.X_op == O_symbol) - { - sym = exp.X_add_symbol; - value = 0; - addend = exp.X_add_number; - } - else - { - sym = make_expr_symbol (&exp); - value = 0; - addend = 0; - } - } - - indx = ECOFF_MARK_STAB (type); - } - - /* Don't store the stabs symbol we are creating as the type of the - ECOFF symbol. We want to compute the type of the ECOFF symbol - independently. */ - if (sym != (symbolS *) NULL) - hold = symbol_get_obj (sym)->ecoff_symbol; - - (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx); - - if (sym != (symbolS *) NULL) - symbol_get_obj (sym)->ecoff_symbol = hold; - - /* Restore normal file type. */ - cur_file_ptr = save_file_ptr; -} - -/* Frob an ECOFF symbol. Small common symbols go into a special - .scommon section rather than bfd_com_section. */ - -void -ecoff_frob_symbol (symbolS *sym) -{ - if (S_IS_COMMON (sym) - && S_GET_VALUE (sym) > 0 - && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) - { - static asection scom_section; - static asymbol scom_symbol; - - /* We must construct a fake section similar to bfd_com_section - but with the name .scommon. */ - if (scom_section.name == NULL) - { - scom_section = *bfd_com_section_ptr; - scom_section.name = ".scommon"; - scom_section.output_section = &scom_section; - scom_section.symbol = &scom_symbol; - scom_section.symbol_ptr_ptr = &scom_section.symbol; - scom_symbol = *bfd_com_section_ptr->symbol; - scom_symbol.name = ".scommon"; - scom_symbol.section = &scom_section; - } - S_SET_SEGMENT (sym, &scom_section); - } - - /* Double check weak symbols. */ - if (S_IS_WEAK (sym)) - { - if (S_IS_COMMON (sym)) - as_bad (_("symbol `%s' can not be both weak and common"), - S_GET_NAME (sym)); - } -} - -/* Add bytes to the symbolic information buffer. */ - -static char * -ecoff_add_bytes (char **buf, - char **bufend, - char *bufptr, - unsigned long need) -{ - unsigned long at; - unsigned long want; - - at = bufptr - *buf; - need -= *bufend - bufptr; - if (need < PAGE_SIZE) - need = PAGE_SIZE; - want = (*bufend - *buf) + need; - *buf = (char *) xrealloc (*buf, want); - *bufend = *buf + want; - return *buf + at; -} - -/* Adjust the symbolic information buffer to the alignment required - for the ECOFF target debugging information. */ - -static unsigned long -ecoff_padding_adjust (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset, - char **bufptrptr) -{ - bfd_size_type align; - - align = backend->debug_align; - if ((offset & (align - 1)) != 0) - { - unsigned long add; - - add = align - (offset & (align - 1)); - if ((unsigned long) (*bufend - (*buf + offset)) < add) - (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); - memset (*buf + offset, 0, add); - offset += add; - if (bufptrptr != (char **) NULL) - *bufptrptr = *buf + offset; - } - - return offset; -} - -/* Build the line number information. */ - -static unsigned long -ecoff_build_lineno (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset, - long *linecntptr) -{ - char *bufptr; - register lineno_list_t *l; - lineno_list_t *last; - efdr_t *file; - proc_t *proc; - unsigned long c; - long iline; - long totcount; - lineno_list_t first; - lineno_list_t *local_first_lineno = first_lineno; - - if (linecntptr != (long *) NULL) - *linecntptr = 0; - - bufptr = *buf + offset; - - file = (efdr_t *) NULL; - proc = (proc_t *) NULL; - last = (lineno_list_t *) NULL; - c = offset; - iline = 0; - totcount = 0; - - /* FIXME? Now that MIPS embedded-PIC is gone, it may be safe to - remove this code. */ - /* For some reason the address of the first procedure is ignored - when reading line numbers. This doesn't matter if the address of - the first procedure is 0, but when gcc is generating MIPS - embedded PIC code, it will put strings in the .text section - before the first procedure. We cope by inserting a dummy line if - the address of the first procedure is not 0. Hopefully this - won't screw things up too badly. - - Don't do this for ECOFF assembly source line numbers. They work - without this extra attention. */ - if (debug_type != DEBUG_ECOFF - && first_proc_ptr != (proc_t *) NULL - && local_first_lineno != (lineno_list_t *) NULL - && ((S_GET_VALUE (first_proc_ptr->sym->as_sym) - + bfd_get_section_vma (stdoutput, - S_GET_SEGMENT (first_proc_ptr->sym->as_sym))) - != 0)) - { - first.file = local_first_lineno->file; - first.proc = local_first_lineno->proc; - first.frag = &zero_address_frag; - first.paddr = 0; - first.lineno = 0; - - first.next = local_first_lineno; - local_first_lineno = &first; - } - - for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next) - { - long count; - long delta; - - /* Get the offset to the memory address of the next line number - (in words). Do this first, so that we can skip ahead to the - next useful line number entry. */ - if (l->next == (lineno_list_t *) NULL) - { - /* We want a count of zero, but it will be decremented - before it is used. */ - count = 1; - } - else if (l->next->frag->fr_address + l->next->paddr - > l->frag->fr_address + l->paddr) - { - count = ((l->next->frag->fr_address + l->next->paddr - - (l->frag->fr_address + l->paddr)) - >> 2); - } - else - { - /* Don't change last, so we still get the right delta. */ - continue; - } - - if (l->file != file || l->proc != proc) - { - if (l->proc != proc && proc != (proc_t *) NULL) - proc->pdr.lnHigh = last->lineno; - if (l->file != file && file != (efdr_t *) NULL) - { - file->fdr.cbLine = c - file->fdr.cbLineOffset; - file->fdr.cline = totcount + count; - if (linecntptr != (long *) NULL) - *linecntptr += totcount + count; - totcount = 0; - } - - if (l->file != file) - { - efdr_t *last_file = file; - - file = l->file; - if (last_file != (efdr_t *) NULL) - file->fdr.ilineBase - = last_file->fdr.ilineBase + last_file->fdr.cline; - else - file->fdr.ilineBase = 0; - file->fdr.cbLineOffset = c; - } - if (l->proc != proc) - { - proc = l->proc; - if (proc != (proc_t *) NULL) - { - proc->pdr.lnLow = l->lineno; - proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; - proc->pdr.iline = totcount; - } - } - - last = (lineno_list_t *) NULL; - } - - totcount += count; - - /* Get the offset to this line number. */ - if (last == (lineno_list_t *) NULL) - delta = 0; - else - delta = l->lineno - last->lineno; - - /* Put in the offset to this line number. */ - while (delta != 0) - { - int setcount; - - /* 1 is added to each count read. */ - --count; - /* We can only adjust the word count by up to 15 words at a - time. */ - if (count <= 0x0f) - { - setcount = count; - count = 0; - } - else - { - setcount = 0x0f; - count -= 0x0f; - } - if (delta >= -7 && delta <= 7) - { - if (bufptr >= *bufend) - bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); - *bufptr++ = setcount + (delta << 4); - delta = 0; - ++c; - } - else - { - int set; - - if (*bufend - bufptr < 3) - bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); - *bufptr++ = setcount + (8 << 4); - if (delta < -0x8000) - { - set = -0x8000; - delta += 0x8000; - } - else if (delta > 0x7fff) - { - set = 0x7fff; - delta -= 0x7fff; - } - else - { - set = delta; - delta = 0; - } - *bufptr++ = set >> 8; - *bufptr++ = set & 0xffff; - c += 3; - } - } - - /* Finish adjusting the count. */ - while (count > 0) - { - if (bufptr >= *bufend) - bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); - /* 1 is added to each count read. */ - --count; - if (count > 0x0f) - { - *bufptr++ = 0x0f; - count -= 0x0f; - } - else - { - *bufptr++ = count; - count = 0; - } - ++c; - } - - ++iline; - last = l; - } - - if (proc != (proc_t *) NULL) - proc->pdr.lnHigh = last->lineno; - if (file != (efdr_t *) NULL) - { - file->fdr.cbLine = c - file->fdr.cbLineOffset; - file->fdr.cline = totcount; - } - - if (linecntptr != (long *) NULL) - *linecntptr += totcount; - - c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); - - return c; -} - -/* Build and swap out the symbols. */ - -static unsigned long -ecoff_build_symbols (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset) -{ - const bfd_size_type external_sym_size = backend->external_sym_size; - void (* const swap_sym_out) (bfd *, const SYMR *, void *) - = backend->swap_sym_out; - char *sym_out; - long isym; - vlinks_t *file_link; - - sym_out = *buf + offset; - - isym = 0; - - /* The symbols are stored by file. */ - for (file_link = file_desc.first; - file_link != (vlinks_t *) NULL; - file_link = file_link->next) - { - int ifilesym; - int fil_cnt; - efdr_t *fil_ptr; - efdr_t *fil_end; - - if (file_link->next == (vlinks_t *) NULL) - fil_cnt = file_desc.objects_last_page; - else - fil_cnt = file_desc.objects_per_page; - fil_ptr = file_link->datum->file; - fil_end = fil_ptr + fil_cnt; - for (; fil_ptr < fil_end; fil_ptr++) - { - vlinks_t *sym_link; - - fil_ptr->fdr.isymBase = isym; - ifilesym = isym; - for (sym_link = fil_ptr->symbols.first; - sym_link != (vlinks_t *) NULL; - sym_link = sym_link->next) - { - int sym_cnt; - localsym_t *sym_ptr; - localsym_t *sym_end; - - if (sym_link->next == (vlinks_t *) NULL) - sym_cnt = fil_ptr->symbols.objects_last_page; - else - sym_cnt = fil_ptr->symbols.objects_per_page; - sym_ptr = sym_link->datum->sym; - sym_end = sym_ptr + sym_cnt; - for (; sym_ptr < sym_end; sym_ptr++) - { - int local; - symbolS *as_sym; - forward_t *f; - - know (sym_ptr->file_ptr == fil_ptr); - - /* If there is no associated gas symbol, then this - is a pure debugging symbol. We have already - added the name (if any) to fil_ptr->strings. - Otherwise we must decide whether this is an - external or a local symbol (actually, it may be - both if the local provides additional debugging - information for the external). */ - local = 1; - as_sym = sym_ptr->as_sym; - if (as_sym != (symbolS *) NULL) - { - symint_t indx; - - /* The value of a block start symbol is the - offset from the start of the procedure. For - other symbols we just use the gas value (but - we must offset it by the vma of the section, - just as BFD does, because BFD will not see - this value). */ - if (sym_ptr->ecoff_sym.asym.st == (int) st_Block - && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) - { - symbolS *begin_sym; - - know (sym_ptr->proc_ptr != (proc_t *) NULL); - begin_sym = sym_ptr->proc_ptr->sym->as_sym; - if (S_GET_SEGMENT (as_sym) - != S_GET_SEGMENT (begin_sym)) - as_warn (_(".begin/.bend in different segments")); - sym_ptr->ecoff_sym.asym.value = - S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); - } - else - sym_ptr->ecoff_sym.asym.value = - (S_GET_VALUE (as_sym) - + bfd_get_section_vma (stdoutput, - S_GET_SEGMENT (as_sym)) - + sym_ptr->addend); - - sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym); - - /* Set st_Proc to st_StaticProc for local - functions. */ - if (sym_ptr->ecoff_sym.asym.st == st_Proc - && S_IS_DEFINED (as_sym) - && ! S_IS_EXTERNAL (as_sym) - && ! S_IS_WEAK (as_sym)) - sym_ptr->ecoff_sym.asym.st = st_StaticProc; - - /* Get the type and storage class based on where - the symbol actually wound up. Traditionally, - N_LBRAC and N_RBRAC are *not* relocated. */ - indx = sym_ptr->ecoff_sym.asym.index; - if (sym_ptr->ecoff_sym.asym.st == st_Nil - && sym_ptr->ecoff_sym.asym.sc == sc_Nil - && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) - || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) - && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) - { - segT seg; - const char *segname; - st_t st; - sc_t sc; - - seg = S_GET_SEGMENT (as_sym); - segname = segment_name (seg); - - if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) - && (S_IS_EXTERNAL (as_sym) - || S_IS_WEAK (as_sym) - || ! S_IS_DEFINED (as_sym))) - { - if ((symbol_get_bfdsym (as_sym)->flags - & BSF_FUNCTION) != 0) - st = st_Proc; - else - st = st_Global; - } - else if (seg == text_section) - st = st_Label; - else - st = st_Static; - - if (! S_IS_DEFINED (as_sym)) - { - valueT s; - - s = symbol_get_obj (as_sym)->ecoff_extern_size; - if (s == 0 - || s > bfd_get_gp_size (stdoutput)) - sc = sc_Undefined; - else - { - sc = sc_SUndefined; - sym_ptr->ecoff_sym.asym.value = s; - } -#ifdef S_SET_SIZE - S_SET_SIZE (as_sym, s); -#endif - } - else if (S_IS_COMMON (as_sym)) - { - if (S_GET_VALUE (as_sym) > 0 - && (S_GET_VALUE (as_sym) - <= bfd_get_gp_size (stdoutput))) - sc = sc_SCommon; - else - sc = sc_Common; - } - else if (seg == text_section) - sc = sc_Text; - else if (seg == data_section) - sc = sc_Data; - else if (strcmp (segname, ".rdata") == 0 - || strcmp (segname, ".rodata") == 0) - sc = sc_RData; - else if (strcmp (segname, ".sdata") == 0) - sc = sc_SData; - else if (seg == bss_section) - sc = sc_Bss; - else if (strcmp (segname, ".sbss") == 0) - sc = sc_SBss; - else if (seg == bfd_abs_section_ptr) - sc = sc_Abs; - else - { - /* This must be a user named section. - This is not possible in ECOFF, but it - is in ELF. */ - sc = sc_Data; - } - - sym_ptr->ecoff_sym.asym.st = (int) st; - sym_ptr->ecoff_sym.asym.sc = (int) sc; - } - - /* This is just an external symbol if it is - outside a procedure and it has a type. - FIXME: g++ will generate symbols which have - different names in the debugging information - than the actual symbol. Should we handle - them here? */ - if ((S_IS_EXTERNAL (as_sym) - || S_IS_WEAK (as_sym) - || ! S_IS_DEFINED (as_sym)) - && sym_ptr->proc_ptr == (proc_t *) NULL - && sym_ptr->ecoff_sym.asym.st != (int) st_Nil - && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) - local = 0; - - /* This is just an external symbol if it is a - common symbol. */ - if (S_IS_COMMON (as_sym)) - local = 0; - - /* If an st_end symbol has an associated gas - symbol, then it is a local label created for - a .bend or .end directive. Stabs line - numbers will have \001 in the names. */ - if (local - && sym_ptr->ecoff_sym.asym.st != st_End - && strchr (sym_ptr->name, '\001') == 0) - sym_ptr->ecoff_sym.asym.iss = - add_string (&fil_ptr->strings, - fil_ptr->str_hash, - sym_ptr->name, - (shash_t **) NULL); - } - - /* We now know the index of this symbol; fill in - locations that have been waiting for that - information. */ - if (sym_ptr->begin_ptr != (localsym_t *) NULL) - { - localsym_t *begin_ptr; - st_t begin_type; - - know (local); - begin_ptr = sym_ptr->begin_ptr; - know (begin_ptr->sym_index != -1); - sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; - if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) - sym_ptr->ecoff_sym.asym.iss = - begin_ptr->ecoff_sym.asym.iss; - - begin_type = (st_t) begin_ptr->ecoff_sym.asym.st; - if (begin_type == st_File - || begin_type == st_Block) - { - begin_ptr->ecoff_sym.asym.index = - isym - ifilesym + 1; - (*swap_sym_out) (stdoutput, - &begin_ptr->ecoff_sym.asym, - (*buf - + offset - + (begin_ptr->sym_index - * external_sym_size))); - } - else - { - know (begin_ptr->index_ptr != (aux_t *) NULL); - begin_ptr->index_ptr->data.isym = - isym - ifilesym + 1; - } - - /* The value of the symbol marking the end of a - procedure is the size of the procedure. The - value of the symbol marking the end of a - block is the offset from the start of the - procedure to the block. */ - if (begin_type == st_Proc - || begin_type == st_StaticProc) - { - know (as_sym != (symbolS *) NULL); - know (begin_ptr->as_sym != (symbolS *) NULL); - if (S_GET_SEGMENT (as_sym) - != S_GET_SEGMENT (begin_ptr->as_sym)) - as_warn (_(".begin/.bend in different segments")); - sym_ptr->ecoff_sym.asym.value = - (S_GET_VALUE (as_sym) - - S_GET_VALUE (begin_ptr->as_sym)); - - /* If the size is odd, this is probably a - mips16 function; force it to be even. */ - if ((sym_ptr->ecoff_sym.asym.value & 1) != 0) - ++sym_ptr->ecoff_sym.asym.value; - -#ifdef S_SET_SIZE - S_SET_SIZE (begin_ptr->as_sym, - sym_ptr->ecoff_sym.asym.value); -#endif - } - else if (begin_type == st_Block - && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) - { - symbolS *begin_sym; - - know (as_sym != (symbolS *) NULL); - know (sym_ptr->proc_ptr != (proc_t *) NULL); - begin_sym = sym_ptr->proc_ptr->sym->as_sym; - if (S_GET_SEGMENT (as_sym) - != S_GET_SEGMENT (begin_sym)) - as_warn (_(".begin/.bend in different segments")); - sym_ptr->ecoff_sym.asym.value = - S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); - } - } - - for (f = sym_ptr->forward_ref; - f != (forward_t *) NULL; - f = f->next) - { - know (local); - f->ifd_ptr->data.isym = fil_ptr->file_index; - f->index_ptr->data.rndx.index = isym - ifilesym; - } - - if (local) - { - if ((bfd_size_type)(*bufend - sym_out) < external_sym_size) - sym_out = ecoff_add_bytes (buf, bufend, - sym_out, - external_sym_size); - (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, - sym_out); - sym_out += external_sym_size; - - sym_ptr->sym_index = isym; - - if (sym_ptr->proc_ptr != (proc_t *) NULL - && sym_ptr->proc_ptr->sym == sym_ptr) - sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; - - ++isym; - } - - /* Record the local symbol index and file number in - case this is an external symbol. Note that this - destroys the asym.index field. */ - if (as_sym != (symbolS *) NULL - && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr) - { - if ((sym_ptr->ecoff_sym.asym.st == st_Proc - || sym_ptr->ecoff_sym.asym.st == st_StaticProc) - && local) - sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; - sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; - - /* Don't try to merge an FDR which has an - external symbol attached to it. */ - if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym)) - fil_ptr->fdr.fMerge = 0; - } - } - } - fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; - } - } - - return offset + isym * external_sym_size; -} - -/* Swap out the procedure information. */ - -static unsigned long -ecoff_build_procs (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset) -{ - const bfd_size_type external_pdr_size = backend->external_pdr_size; - void (* const swap_pdr_out) (bfd *, const PDR *, void *) - = backend->swap_pdr_out; - char *pdr_out; - long iproc; - vlinks_t *file_link; - - pdr_out = *buf + offset; - - iproc = 0; - - /* The procedures are stored by file. */ - for (file_link = file_desc.first; - file_link != (vlinks_t *) NULL; - file_link = file_link->next) - { - int fil_cnt; - efdr_t *fil_ptr; - efdr_t *fil_end; - - if (file_link->next == (vlinks_t *) NULL) - fil_cnt = file_desc.objects_last_page; - else - fil_cnt = file_desc.objects_per_page; - fil_ptr = file_link->datum->file; - fil_end = fil_ptr + fil_cnt; - for (; fil_ptr < fil_end; fil_ptr++) - { - vlinks_t *proc_link; - int first; - - fil_ptr->fdr.ipdFirst = iproc; - first = 1; - for (proc_link = fil_ptr->procs.first; - proc_link != (vlinks_t *) NULL; - proc_link = proc_link->next) - { - int prc_cnt; - proc_t *proc_ptr; - proc_t *proc_end; - - if (proc_link->next == (vlinks_t *) NULL) - prc_cnt = fil_ptr->procs.objects_last_page; - else - prc_cnt = fil_ptr->procs.objects_per_page; - proc_ptr = proc_link->datum->proc; - proc_end = proc_ptr + prc_cnt; - for (; proc_ptr < proc_end; proc_ptr++) - { - symbolS *adr_sym; - unsigned long adr; - - adr_sym = proc_ptr->sym->as_sym; - adr = (S_GET_VALUE (adr_sym) - + bfd_get_section_vma (stdoutput, - S_GET_SEGMENT (adr_sym))); - if (first) - { - /* This code used to force the adr of the very - first fdr to be 0. However, the native tools - don't do that, and I can't remember why it - used to work that way, so I took it out. */ - fil_ptr->fdr.adr = adr; - first = 0; - } - proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; - if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size) - pdr_out = ecoff_add_bytes (buf, bufend, - pdr_out, - external_pdr_size); - (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); - pdr_out += external_pdr_size; - ++iproc; - } - } - fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; - } - } - - return offset + iproc * external_pdr_size; -} - -/* Swap out the aux information. */ - -static unsigned long -ecoff_build_aux (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset) -{ - int bigendian; - union aux_ext *aux_out; - long iaux; - vlinks_t *file_link; - - bigendian = bfd_big_endian (stdoutput); - - aux_out = (union aux_ext *) (*buf + offset); - - iaux = 0; - - /* The aux entries are stored by file. */ - for (file_link = file_desc.first; - file_link != (vlinks_t *) NULL; - file_link = file_link->next) - { - int fil_cnt; - efdr_t *fil_ptr; - efdr_t *fil_end; - - if (file_link->next == (vlinks_t *) NULL) - fil_cnt = file_desc.objects_last_page; - else - fil_cnt = file_desc.objects_per_page; - fil_ptr = file_link->datum->file; - fil_end = fil_ptr + fil_cnt; - for (; fil_ptr < fil_end; fil_ptr++) - { - vlinks_t *aux_link; - - fil_ptr->fdr.fBigendian = bigendian; - fil_ptr->fdr.iauxBase = iaux; - for (aux_link = fil_ptr->aux_syms.first; - aux_link != (vlinks_t *) NULL; - aux_link = aux_link->next) - { - int aux_cnt; - aux_t *aux_ptr; - aux_t *aux_end; - - if (aux_link->next == (vlinks_t *) NULL) - aux_cnt = fil_ptr->aux_syms.objects_last_page; - else - aux_cnt = fil_ptr->aux_syms.objects_per_page; - aux_ptr = aux_link->datum->aux; - aux_end = aux_ptr + aux_cnt; - for (; aux_ptr < aux_end; aux_ptr++) - { - if ((unsigned long) (*bufend - (char *) aux_out) - < sizeof (union aux_ext)) - aux_out = ((union aux_ext *) - ecoff_add_bytes (buf, bufend, - (char *) aux_out, - sizeof (union aux_ext))); - switch (aux_ptr->type) - { - case aux_tir: - (*backend->swap_tir_out) (bigendian, - &aux_ptr->data.ti, - &aux_out->a_ti); - break; - case aux_rndx: - (*backend->swap_rndx_out) (bigendian, - &aux_ptr->data.rndx, - &aux_out->a_rndx); - break; - case aux_dnLow: - AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, - aux_out); - break; - case aux_dnHigh: - AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, - aux_out); - break; - case aux_isym: - AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, - aux_out); - break; - case aux_iss: - AUX_PUT_ISS (bigendian, aux_ptr->data.iss, - aux_out); - break; - case aux_width: - AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, - aux_out); - break; - case aux_count: - AUX_PUT_COUNT (bigendian, aux_ptr->data.count, - aux_out); - break; - } - - ++aux_out; - ++iaux; - } - } - fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; - } - } - - return ecoff_padding_adjust (backend, buf, bufend, - offset + iaux * sizeof (union aux_ext), - (char **) NULL); -} - -/* Copy out the strings from a varray_t. This returns the number of - bytes copied, rather than the new offset. */ - -static unsigned long -ecoff_build_strings (char **buf, - char **bufend, - unsigned long offset, - varray_t *vp) -{ - unsigned long istr; - char *str_out; - vlinks_t *str_link; - - str_out = *buf + offset; - - istr = 0; - - for (str_link = vp->first; - str_link != (vlinks_t *) NULL; - str_link = str_link->next) - { - unsigned long str_cnt; - - if (str_link->next == (vlinks_t *) NULL) - str_cnt = vp->objects_last_page; - else - str_cnt = vp->objects_per_page; - - if ((unsigned long)(*bufend - str_out) < str_cnt) - str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); - - memcpy (str_out, str_link->datum->byte, str_cnt); - str_out += str_cnt; - istr += str_cnt; - } - - return istr; -} - -/* Dump out the local strings. */ - -static unsigned long -ecoff_build_ss (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset) -{ - long iss; - vlinks_t *file_link; - - iss = 0; - - for (file_link = file_desc.first; - file_link != (vlinks_t *) NULL; - file_link = file_link->next) - { - int fil_cnt; - efdr_t *fil_ptr; - efdr_t *fil_end; - - if (file_link->next == (vlinks_t *) NULL) - fil_cnt = file_desc.objects_last_page; - else - fil_cnt = file_desc.objects_per_page; - fil_ptr = file_link->datum->file; - fil_end = fil_ptr + fil_cnt; - for (; fil_ptr < fil_end; fil_ptr++) - { - long ss_cnt; - - fil_ptr->fdr.issBase = iss; - ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, - &fil_ptr->strings); - fil_ptr->fdr.cbSs = ss_cnt; - iss += ss_cnt; - } - } - - return ecoff_padding_adjust (backend, buf, bufend, offset + iss, - (char **) NULL); -} - -/* Swap out the file descriptors. */ - -static unsigned long -ecoff_build_fdr (const struct ecoff_debug_swap *backend, - char **buf, - char **bufend, - unsigned long offset) -{ - const bfd_size_type external_fdr_size = backend->external_fdr_size; - void (* const swap_fdr_out) (bfd *, const FDR *, void *) - = backend->swap_fdr_out; - long ifile; - char *fdr_out; - vlinks_t *file_link; - - ifile = 0; - - fdr_out = *buf + offset; - - for (file_link = file_desc.first; - file_link != (vlinks_t *) NULL; - file_link = file_link->next) - { - int fil_cnt; - efdr_t *fil_ptr; - efdr_t *fil_end; - - if (file_link->next == (vlinks_t *) NULL) - fil_cnt = file_desc.objects_last_page; - else - fil_cnt = file_desc.objects_per_page; - fil_ptr = file_link->datum->file; - fil_end = fil_ptr + fil_cnt; - for (; fil_ptr < fil_end; fil_ptr++) - { - if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size) - fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, - external_fdr_size); - (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); - fdr_out += external_fdr_size; - ++ifile; - } - } - - return offset + ifile * external_fdr_size; -} - -/* Set up the external symbols. These are supposed to be handled by - the backend. This routine just gets the right information and - calls a backend function to deal with it. */ - -static void -ecoff_setup_ext (void) -{ - register symbolS *sym; - - for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) - { - if (symbol_get_obj (sym)->ecoff_symbol == NULL) - continue; - - /* If this is a local symbol, then force the fields to zero. */ - if (! S_IS_EXTERNAL (sym) - && ! S_IS_WEAK (sym) - && S_IS_DEFINED (sym)) - { - struct localsym *lsym; - - lsym = symbol_get_obj (sym)->ecoff_symbol; - lsym->ecoff_sym.asym.value = 0; - lsym->ecoff_sym.asym.st = (int) st_Nil; - lsym->ecoff_sym.asym.sc = (int) sc_Nil; - lsym->ecoff_sym.asym.index = indexNil; - } - - obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym); - } -} - -/* Build the ECOFF debugging information. */ - -unsigned long -ecoff_build_debug (HDRR *hdr, - char **bufp, - const struct ecoff_debug_swap *backend) -{ - const bfd_size_type external_pdr_size = backend->external_pdr_size; - tag_t *ptag; - tag_t *ptag_next; - efdr_t *fil_ptr; - int end_warning; - efdr_t *hold_file_ptr; - proc_t *hold_proc_ptr; - symbolS *sym; - char *buf; - char *bufend; - unsigned long offset; - - /* Make sure we have a file. */ - if (first_file == (efdr_t *) NULL) - add_file ((const char *) NULL, 0, 1); - - /* Handle any top level tags. */ - for (ptag = top_tag_head->first_tag; - ptag != (tag_t *) NULL; - ptag = ptag_next) - { - if (ptag->forward_ref != (forward_t *) NULL) - add_unknown_tag (ptag); - - ptag_next = ptag->same_block; - ptag->hash_ptr->tag_ptr = ptag->same_name; - free_tag (ptag); - } - - free_thead (top_tag_head); - - /* Look through the symbols. Add debugging information for each - symbol that has not already received it. */ - hold_file_ptr = cur_file_ptr; - hold_proc_ptr = cur_proc_ptr; - cur_proc_ptr = (proc_t *) NULL; - for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) - { - if (symbol_get_obj (sym)->ecoff_symbol != NULL - || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL - || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0) - continue; - - cur_file_ptr = symbol_get_obj (sym)->ecoff_file; - add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, - (bfd_vma) 0, S_GET_VALUE (sym), indexNil); - } - cur_proc_ptr = hold_proc_ptr; - cur_file_ptr = hold_file_ptr; - - /* Output an ending symbol for all the files. We have to do this - here for the last file, so we may as well do it for all of the - files. */ - end_warning = 0; - for (fil_ptr = first_file; - fil_ptr != (efdr_t *) NULL; - fil_ptr = fil_ptr->next_file) - { - cur_file_ptr = fil_ptr; - while (cur_file_ptr->cur_scope != (scope_t *) NULL - && cur_file_ptr->cur_scope->prev != (scope_t *) NULL) - { - cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; - if (! end_warning && ! cur_file_ptr->fake) - { - as_warn (_("missing .end or .bend at end of file")); - end_warning = 1; - } - } - if (cur_file_ptr->cur_scope != (scope_t *) NULL) - (void) add_ecoff_symbol ((const char *) NULL, - st_End, sc_Text, - (symbolS *) NULL, - (bfd_vma) 0, - (symint_t) 0, - (symint_t) 0); - } - - /* Build the symbolic information. */ - offset = 0; - buf = (char *) xmalloc (PAGE_SIZE); - bufend = buf + PAGE_SIZE; - - /* Build the line number information. */ - hdr->cbLineOffset = offset; - offset = ecoff_build_lineno (backend, &buf, &bufend, offset, - &hdr->ilineMax); - hdr->cbLine = offset - hdr->cbLineOffset; - - /* We don't use dense numbers at all. */ - hdr->idnMax = 0; - hdr->cbDnOffset = 0; - - /* We can't build the PDR table until we have built the symbols, - because a PDR contains a symbol index. However, we set aside - space at this point. */ - hdr->ipdMax = proc_cnt; - hdr->cbPdOffset = offset; - if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size) - (void) ecoff_add_bytes (&buf, &bufend, buf + offset, - proc_cnt * external_pdr_size); - offset += proc_cnt * external_pdr_size; - - /* Build the local symbols. */ - hdr->cbSymOffset = offset; - offset = ecoff_build_symbols (backend, &buf, &bufend, offset); - hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; - - /* Building the symbols initializes the symbol index in the PDR's. - Now we can swap out the PDR's. */ - (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); - - /* We don't use optimization symbols. */ - hdr->ioptMax = 0; - hdr->cbOptOffset = 0; - - /* Swap out the auxiliary type information. */ - hdr->cbAuxOffset = offset; - offset = ecoff_build_aux (backend, &buf, &bufend, offset); - hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); - - /* Copy out the local strings. */ - hdr->cbSsOffset = offset; - offset = ecoff_build_ss (backend, &buf, &bufend, offset); - hdr->issMax = offset - hdr->cbSsOffset; - - /* We don't use relative file descriptors. */ - hdr->crfd = 0; - hdr->cbRfdOffset = 0; - - /* Swap out the file descriptors. */ - hdr->cbFdOffset = offset; - offset = ecoff_build_fdr (backend, &buf, &bufend, offset); - hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; - - /* Set up the external symbols, which are handled by the BFD back - end. */ - hdr->issExtMax = 0; - hdr->cbSsExtOffset = 0; - hdr->iextMax = 0; - hdr->cbExtOffset = 0; - ecoff_setup_ext (); - - know ((offset & (backend->debug_align - 1)) == 0); - - /* FIXME: This value should be determined from the .verstamp directive, - with reasonable defaults in config files. */ -#ifdef TC_ALPHA - hdr->vstamp = 0x030b; -#else - hdr->vstamp = 0x020b; -#endif - - *bufp = buf; - return offset; -} - -/* Allocate a cluster of pages. */ - -#ifndef MALLOC_CHECK - -static page_type * -allocate_cluster (unsigned long npages) -{ - register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE); - -#ifdef ECOFF_DEBUG - if (debug > 3) - fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); -#endif - - memset (value, 0, npages * PAGE_USIZE); - - return value; -} - -static page_type *cluster_ptr = NULL; -static unsigned long pages_left = 0; - -#endif /* MALLOC_CHECK */ - -/* Allocate one page (which is initialized to 0). */ - -static page_type * -allocate_page (void) -{ -#ifndef MALLOC_CHECK - - if (pages_left == 0) - { - pages_left = MAX_CLUSTER_PAGES; - cluster_ptr = allocate_cluster (pages_left); - } - - pages_left--; - return cluster_ptr++; - -#else /* MALLOC_CHECK */ - - page_type *ptr; - - ptr = xmalloc (PAGE_USIZE); - memset (ptr, 0, PAGE_USIZE); - return ptr; - -#endif /* MALLOC_CHECK */ -} - -/* Allocate scoping information. */ - -static scope_t * -allocate_scope (void) -{ - register scope_t *ptr; - static scope_t initial_scope; - -#ifndef MALLOC_CHECK - - ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope; - if (ptr != (scope_t *) NULL) - alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free; - else - { - register int unallocated = alloc_counts[(int) alloc_type_scope].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (scope_t); - alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_scope].total_pages++; - } - - ptr = &cur_page->scope[--unallocated]; - alloc_counts[(int) alloc_type_scope].unallocated = unallocated; - } - -#else - - ptr = (scope_t *) xmalloc (sizeof (scope_t)); - -#endif - - alloc_counts[(int) alloc_type_scope].total_alloc++; - *ptr = initial_scope; - return ptr; -} - -/* Free scoping information. */ - -static void -free_scope (scope_t *ptr) -{ - alloc_counts[(int) alloc_type_scope].total_free++; - -#ifndef MALLOC_CHECK - ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope; - alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr; -#else - free ((void *) ptr); -#endif -} - -/* Allocate links for pages in a virtual array. */ - -static vlinks_t * -allocate_vlinks (void) -{ - register vlinks_t *ptr; - static vlinks_t initial_vlinks; - -#ifndef MALLOC_CHECK - - register int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (vlinks_t); - alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_vlinks].total_pages++; - } - - ptr = &cur_page->vlinks[--unallocated]; - alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated; - -#else - - ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t)); - -#endif - - alloc_counts[(int) alloc_type_vlinks].total_alloc++; - *ptr = initial_vlinks; - return ptr; -} - -/* Allocate string hash buckets. */ - -static shash_t * -allocate_shash (void) -{ - register shash_t *ptr; - static shash_t initial_shash; - -#ifndef MALLOC_CHECK - - register int unallocated = alloc_counts[(int) alloc_type_shash].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (shash_t); - alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_shash].total_pages++; - } - - ptr = &cur_page->shash[--unallocated]; - alloc_counts[(int) alloc_type_shash].unallocated = unallocated; - -#else - - ptr = (shash_t *) xmalloc (sizeof (shash_t)); - -#endif - - alloc_counts[(int) alloc_type_shash].total_alloc++; - *ptr = initial_shash; - return ptr; -} - -/* Allocate type hash buckets. */ - -static thash_t * -allocate_thash (void) -{ - register thash_t *ptr; - static thash_t initial_thash; - -#ifndef MALLOC_CHECK - - register int unallocated = alloc_counts[(int) alloc_type_thash].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (thash_t); - alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_thash].total_pages++; - } - - ptr = &cur_page->thash[--unallocated]; - alloc_counts[(int) alloc_type_thash].unallocated = unallocated; - -#else - - ptr = (thash_t *) xmalloc (sizeof (thash_t)); - -#endif - - alloc_counts[(int) alloc_type_thash].total_alloc++; - *ptr = initial_thash; - return ptr; -} - -/* Allocate structure, union, or enum tag information. */ - -static tag_t * -allocate_tag (void) -{ - register tag_t *ptr; - static tag_t initial_tag; - -#ifndef MALLOC_CHECK - - ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag; - if (ptr != (tag_t *) NULL) - alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free; - else - { - register int unallocated = alloc_counts[(int) alloc_type_tag].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (tag_t); - alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_tag].total_pages++; - } - - ptr = &cur_page->tag[--unallocated]; - alloc_counts[(int) alloc_type_tag].unallocated = unallocated; - } - -#else - - ptr = (tag_t *) xmalloc (sizeof (tag_t)); - -#endif - - alloc_counts[(int) alloc_type_tag].total_alloc++; - *ptr = initial_tag; - return ptr; -} - -/* Free scoping information. */ - -static void -free_tag (tag_t *ptr) -{ - alloc_counts[(int) alloc_type_tag].total_free++; - -#ifndef MALLOC_CHECK - ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag; - alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr; -#else - free ((PTR_T) ptr); -#endif -} - -/* Allocate forward reference to a yet unknown tag. */ - -static forward_t * -allocate_forward (void) -{ - register forward_t *ptr; - static forward_t initial_forward; - -#ifndef MALLOC_CHECK - - register int unallocated = alloc_counts[(int) alloc_type_forward].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (forward_t); - alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_forward].total_pages++; - } - - ptr = &cur_page->forward[--unallocated]; - alloc_counts[(int) alloc_type_forward].unallocated = unallocated; - -#else - - ptr = (forward_t *) xmalloc (sizeof (forward_t)); - -#endif - - alloc_counts[(int) alloc_type_forward].total_alloc++; - *ptr = initial_forward; - return ptr; -} - -/* Allocate head of type hash list. */ - -static thead_t * -allocate_thead (void) -{ - register thead_t *ptr; - static thead_t initial_thead; - -#ifndef MALLOC_CHECK - - ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead; - if (ptr != (thead_t *) NULL) - alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free; - else - { - register int unallocated = alloc_counts[(int) alloc_type_thead].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (thead_t); - alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_thead].total_pages++; - } - - ptr = &cur_page->thead[--unallocated]; - alloc_counts[(int) alloc_type_thead].unallocated = unallocated; - } - -#else - - ptr = (thead_t *) xmalloc (sizeof (thead_t)); - -#endif - - alloc_counts[(int) alloc_type_thead].total_alloc++; - *ptr = initial_thead; - return ptr; -} - -/* Free scoping information. */ - -static void -free_thead (thead_t *ptr) -{ - alloc_counts[(int) alloc_type_thead].total_free++; - -#ifndef MALLOC_CHECK - ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead; - alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr; -#else - free ((PTR_T) ptr); -#endif -} - -static lineno_list_t * -allocate_lineno_list (void) -{ - register lineno_list_t *ptr; - static lineno_list_t initial_lineno_list; - -#ifndef MALLOC_CHECK - - register int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated; - register page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page; - - if (unallocated == 0) - { - unallocated = PAGE_SIZE / sizeof (lineno_list_t); - alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page (); - alloc_counts[(int) alloc_type_lineno].total_pages++; - } - - ptr = &cur_page->lineno[--unallocated]; - alloc_counts[(int) alloc_type_lineno].unallocated = unallocated; - -#else - - ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t)); - -#endif - - alloc_counts[(int) alloc_type_lineno].total_alloc++; - *ptr = initial_lineno_list; - return ptr; -} - -void -ecoff_set_gp_prolog_size (int sz) -{ - if (cur_proc_ptr == 0) - return; - - cur_proc_ptr->pdr.gp_prologue = sz; - if (cur_proc_ptr->pdr.gp_prologue != sz) - { - as_warn (_("GP prologue size exceeds field size, using 0 instead")); - cur_proc_ptr->pdr.gp_prologue = 0; - } - - cur_proc_ptr->pdr.gp_used = 1; -} - -int -ecoff_no_current_file (void) -{ - return cur_file_ptr == (efdr_t *) NULL; -} - -void -ecoff_generate_asm_lineno (void) -{ - unsigned int lineno; - char *filename; - lineno_list_t *list; - - as_where (&filename, &lineno); - - if (current_stabs_filename == (char *) NULL - || filename_cmp (current_stabs_filename, filename)) - add_file (filename, 0, 1); - - list = allocate_lineno_list (); - - list->next = (lineno_list_t *) NULL; - list->file = cur_file_ptr; - list->proc = cur_proc_ptr; - list->frag = frag_now; - list->paddr = frag_now_fix (); - list->lineno = lineno; - - /* We don't want to merge files which have line numbers. */ - cur_file_ptr->fdr.fMerge = 0; - - /* A .loc directive will sometimes appear before a .ent directive, - which means that cur_proc_ptr will be NULL here. Arrange to - patch this up. */ - if (cur_proc_ptr == (proc_t *) NULL) - { - lineno_list_t **pl; - - pl = &noproc_lineno; - while (*pl != (lineno_list_t *) NULL) - pl = &(*pl)->next; - *pl = list; - } - else - { - last_lineno = list; - *last_lineno_ptr = list; - last_lineno_ptr = &list->next; - } -} - -#else - -void -ecoff_generate_asm_lineno (void) -{ -} - -#endif /* ECOFF_DEBUGGING */ |