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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/ptx4.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/ptx4.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/ptx4.h b/gcc-4.2.1-5666.3/gcc/config/ptx4.h new file mode 100644 index 000000000..8c231027d --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/ptx4.h @@ -0,0 +1,223 @@ +/* Operating system specific defines to be used when targeting GCC for + Sequent's Dynix/ptx v4 and later. + Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004 + Free Software Foundation, Inc. + Generic SysV4 file Contributed by Ron Guilmette (rfg@monkeys.com). + Renamed and changed to suit Dynix/ptx v4 and later. + Modified by Tim Wright (timw@sequent.com). + Modified by Janis Johnson (janis@us.ibm.com). + +This file is part of GCC. + +GCC 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 2, or (at your option) +any later version. + +GCC 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 GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. + +*/ + +/* Define a symbol indicating that we are using svr4.h. */ +#define USING_SVR4_H + +/* Use DWARF 2 debugging info by default. */ + +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG + +#define DWARF2_DEBUGGING_INFO 1 + +/* Cpp, assembler, linker, library, and startfile spec's. */ + +/* This defines which switch letters take arguments. On svr4, most of + the normal cases (defined in gcc.c) apply, and we also have -h* and + -z* options (for the linker). Note however that there is no such + thing as a -T option for svr4. */ + +#define SWITCH_TAKES_ARG(CHAR) \ + ( (CHAR) == 'D' \ + || (CHAR) == 'U' \ + || (CHAR) == 'o' \ + || (CHAR) == 'e' \ + || (CHAR) == 'u' \ + || (CHAR) == 'I' \ + || (CHAR) == 'm' \ + || (CHAR) == 'L' \ + || (CHAR) == 'A' \ + || (CHAR) == 'h' \ + || (CHAR) == 'z') + +/* This defines which multi-letter switches take arguments. On svr4, + there are no such switches except those implemented by GCC itself. */ + +#define WORD_SWITCH_TAKES_ARG(STR) \ + (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ + && strcmp (STR, "Tdata") && strcmp (STR, "Ttext") \ + && strcmp (STR, "Tbss")) + +/* Provide an ASM_SPEC appropriate for svr4. Here we try to support as + many of the specialized svr4 assembler options as seems reasonable, + given that there are certain options which we can't (or shouldn't) + support directly due to the fact that they conflict with other options + for other svr4 tools (e.g. ld) or with other options for GCC itself. + For example, we don't support the -o (output file) or -R (remove + input file) options because GCC already handles these things. We + also don't support the -m (run m4) option for the assembler because + that conflicts with the -m (produce load map) option of the svr4 + linker. We do however allow passing arbitrary options to the svr4 + assembler via the -Wa, option. + + Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,* + option. +*/ + +#undef ASM_SPEC +#ifdef USE_GAS +#define ASM_SPEC \ + "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}" +#else +#define ASM_SPEC \ + "-no_0f_fix -no_eflags_chk %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}" +#endif + +#define AS_NEEDS_DASH_FOR_PIPED_INPUT + +/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default + standard C library (unless we are building a shared library). */ + +#undef LIB_SPEC +#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}" + +/* Provide a LIBGCC_SPEC appropriate for svr4. We also want to exclude + libgcc when -symbolic. */ + +#undef LIBGCC_SPEC +#define LIBGCC_SPEC "%{!shared:%{!symbolic:-lgcc}}" + +/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own + magical crtend.o file (see crtstuff.c) which provides part of the + support for getting C++ file-scope static object constructed before + entering `main', followed by the normal svr3/svr4 "finalizer" file, + which is either `gcrtn.o' or `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "crtend.o%s %{pg:gcrtn.o}%{!pg:crtn.o%s}" + +/* Provide a LINK_SPEC appropriate for svr4. Here we provide support + for the special GCC options -static, -shared, and -symbolic which + allow us to link things in one of these three modes by applying the + appropriate combinations of options at link-time. We also provide + support here for as many of the other svr4 linker options as seems + reasonable, given that some of them conflict with options for other + svr4 tools (e.g. the assembler). In particular, we do support the + -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*, + -l*, -o*, -r, -s, -u*, and -L* options are directly supported + by gcc.c itself. We don't directly support the -m (generate load + map) option because that conflicts with the -m (run m4) option of + the svr4 assembler. We also don't directly support the svr4 linker's + -I* or -M* options because these conflict with existing GCC options. + We do however allow passing arbitrary options to the svr4 linker + via the -Wl, option. We don't support the svr4 linker's -a option + at all because it is totally useless and because it conflicts with + GCC's own -a option. + + Note that gcc doesn't allow a space to follow -Y in a -YP,* option. + + When the -G link option is used (-shared and -symbolic) a final link is + not being done. */ + +#undef LINK_SPEC +#define LINK_SPEC "%{h*} %{v:-V} \ + %{b} \ + %{static:-dn -Bstatic} \ + %{shared:-G -dy -z text} \ + %{symbolic:-Bsymbolic -G -dy -z text} \ + %{G:-G} \ + %{YP,*} \ + %{!YP,*:%{p:-Y P,/lib/libp:/usr/lib/libp:/lib:/usr/lib} \ + %{!p:-Y P,/lib:/usr/lib}} \ + %{Qy:} %{!Qn:-Qy}" + +/* Gcc automatically adds in one of the files /lib/values-Xc.o + or /lib/values-Xa.o, for each final link step (depending upon the other + gcc options selected, such as -ansi). These files each contain one + (initialized) copy of a special variable called `_lib_version'. Each + one of these files has `_lib_version' initialized to a different (enum) + value. The SVR4 library routines query the value of `_lib_version' + at run to decide how they should behave. Specifically, they decide + (based upon the value of `_lib_version') if they will act in a strictly + ANSI conforming manner or not. +*/ + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "%{!shared: \ + %{!symbolic: \ + %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\ + %{pg:gcrti.o%s}%{!pg:crti.o%s} \ + %{ansi:values-Xc.o%s} \ + %{!ansi:values-Xa.o%s} \ + crtbegin.o%s" + +/* Don't use bcopy, which doesn't handle overlaps before DYNIX/ptx 4.6. */ + +#undef HAVE_BCOPY + +/* The numbers used to denote specific machine registers in the System V + Release 4 DWARF debugging information are quite likely to be totally + different from the numbers used in BSD stabs debugging information + for the same kind of target machine. Thus, we undefine the macro + DBX_REGISTER_NUMBER here as an extra inducement to get people to + provide proper machine-specific definitions of DBX_REGISTER_NUMBER + (which is also used to provide DWARF registers numbers in dwarfout.c) + in their tm.h files which include this file. */ + +#undef DBX_REGISTER_NUMBER + +/* Like block addresses, stabs line numbers are relative to the + current function. */ + +#define DBX_LINES_FUNCTION_RELATIVE 1 + +/* Generate a blank trailing N_SO to mark the end of the .o file, since + we can't depend upon the linker to mark .o file boundaries with + embedded stabs. */ + +#define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END + +/* Define the actual types of some ANSI-mandated types. (These + definitions should work for most SVR4 systems). */ + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "long int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE BITS_PER_WORD + +/* This says how to output assembler code to declare an uninitialized + external linkage data item. There's a bug in the DYNIX/ptx linker + (PR 254649) when the alignment for such an object is specified, so + ignore the ALIGN parameter. */ + +#undef ASM_OUTPUT_ALIGNED_COMMON +#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ +do { \ + fprintf ((FILE), "%s", COMMON_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ",%lu\n", (unsigned long)(SIZE)); \ +} while (0) + |