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Diffstat (limited to 'gcc-4.4.3/gcc/ada/gmem.c')
| -rw-r--r-- | gcc-4.4.3/gcc/ada/gmem.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/gcc-4.4.3/gcc/ada/gmem.c b/gcc-4.4.3/gcc/ada/gmem.c deleted file mode 100644 index 12c3c0a82..000000000 --- a/gcc-4.4.3/gcc/ada/gmem.c +++ /dev/null @@ -1,217 +0,0 @@ -/**************************************************************************** - * * - * GNATMEM COMPONENTS * - * * - * G M E M * - * * - * C Implementation File * - * * - * Copyright (C) 2000-2009, Free Software Foundation, Inc. * - * * - * GNAT is free software; you can redistribute it and/or modify it under * - * terms of the GNU General Public License as published by the Free Soft- * - * ware Foundation; either version 3, or (at your option) any later ver- * - * sion. GNAT is distributed in the hope that it will be useful, but WITH- * - * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * - * or FITNESS FOR A PARTICULAR PURPOSE. * - * * - * As a special exception under Section 7 of GPL version 3, you are granted * - * additional permissions described in the GCC Runtime Library Exception, * - * version 3.1, as published by the Free Software Foundation. * - * * - * You should have received a copy of the GNU General Public License and * - * a copy of the GCC Runtime Library Exception along with this program; * - * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * - * <http://www.gnu.org/licenses/>. * - * * - * GNAT was originally developed by the GNAT team at New York University. * - * Extensive contributions were provided by Ada Core Technologies Inc. * - * * - ****************************************************************************/ - -/* This unit reads the allocation tracking log produced by augmented - __gnat_malloc and __gnat_free procedures (see file memtrack.adb) and - provides GNATMEM tool with gdb-compliant output. The output is - processed by GNATMEM to detect dynamic memory allocation errors. - - See GNATMEM section in GNAT User's Guide for more information. - - NOTE: This capability is currently supported on the following targets: - - DEC Unix - GNU/Linux x86 - Solaris (sparc and x86) (*) - Windows 98/95/NT (x86) - Alpha OpenVMS - - (*) on these targets, the compilation must be done with -funwind-tables to - be able to build the stack backtrace. - -*/ - -#ifdef VMS -#include <string.h> -#define xstrdup32(S) strcpy ((__char_ptr32) _malloc32 (strlen (S) + 1), S) -#else -#define xstrdup32(S) S -#endif - -#include <stdio.h> - -static FILE *gmemfile; - -/* tb_len is the number of call level supported by this module */ -#define tb_len 200 -static void * tracebk [tb_len]; -static int cur_tb_len, cur_tb_pos; - -#define LOG_EOF '*' -#define LOG_ALLOC 'A' -#define LOG_DEALL 'D' - -struct struct_storage_elmt { - char Elmt; - void * Address; - size_t Size; - long long Timestamp; -}; - -static void -__gnat_convert_addresses (void *addrs[], int n_addrs, void *buf, int *len); -/* Place in BUF a string representing the symbolic translation of N_ADDRS raw - addresses provided in ADDRS. LEN is filled with the result length. - - This is a GNAT specific interface to the libaddr2line convert_addresses - routine. The latter examines debug info from a provided executable file - name to perform the translation into symbolic form of an input sequence of - raw binary addresses. It attempts to open the file from the provided name - "as is", so an absolute path must be provided to ensure the file is - always found. We compute this name once, at initialization time. */ - -static const char * exename = 0; - -extern void convert_addresses (const char * , void *[], int, void *, int *); -extern char *__gnat_locate_exec_on_path (char *); -/* ??? Both of these extern functions are prototyped in adaint.h, which - also refers to "time_t" hence needs complex extra header inclusions to - be satisfied on every target. */ - -static void -__gnat_convert_addresses (void *addrs[], int n_addrs, void *buf, int *len) -{ - if (exename != 0) - convert_addresses (exename, addrs, n_addrs, buf, len); - else - *len = 0; -} - -/* reads backtrace information from gmemfile placing them in tracebk - array. cur_tb_len is the size of this array -*/ - -static void -gmem_read_backtrace (void) -{ - fread (&cur_tb_len, sizeof (int), 1, gmemfile); - fread (tracebk, sizeof (void *), cur_tb_len, gmemfile); - cur_tb_pos = 0; -} - -/* initialize gmem feature from the dumpname file. It returns t0 timestamp - if the dumpname has been generated by GMEM (instrumented malloc/free) - and 0 if not. -*/ - -long long __gnat_gmem_initialize (char *dumpname) -{ - char header [10]; - long long t0; - - gmemfile = fopen (dumpname, "rb"); - fread (header, 10, 1, gmemfile); - - /* check for GMEM magic-tag */ - if (memcmp (header, "GMEM DUMP\n", 10)) - { - fclose (gmemfile); - return 0; - } - - fread (&t0, sizeof (long long), 1, gmemfile); - - return t0; -} - -/* initialize addr2line library */ - -void __gnat_gmem_a2l_initialize (char *exearg) -{ - /* Resolve the executable filename to use in later invocations of - the libaddr2line symbolization service. Ensure that on VMS - exename is allocated in 32 bit memory for compatibility - with libaddr2line. */ - exename = xstrdup32 (__gnat_locate_exec_on_path (exearg)); -} - -/* Read next allocation of deallocation information from the GMEM file and - write an alloc/free information in buf to be processed by gnatmem */ - -void -__gnat_gmem_read_next (struct struct_storage_elmt *buf) -{ - void *addr; - size_t size; - int j; - - j = fgetc (gmemfile); - if (j == EOF) - { - fclose (gmemfile); - buf->Elmt = LOG_EOF; - } - else - { - switch (j) - { - case 'A' : - buf->Elmt = LOG_ALLOC; - fread (&(buf->Address), sizeof (void *), 1, gmemfile); - fread (&(buf->Size), sizeof (size_t), 1, gmemfile); - fread (&(buf->Timestamp), sizeof (long long), 1, gmemfile); - break; - case 'D' : - buf->Elmt = LOG_DEALL; - fread (&(buf->Address), sizeof (void *), 1, gmemfile); - fread (&(buf->Timestamp), sizeof (long long), 1, gmemfile); - break; - default: - puts ("GNATMEM dump file corrupt"); - __gnat_os_exit (1); - } - - gmem_read_backtrace (); - } -} - -/* Read the next frame from the current traceback, and move the cursor to the - next frame */ - -void __gnat_gmem_read_next_frame (void** addr) -{ - if (cur_tb_pos >= cur_tb_len) { - *addr = NULL; - } else { - *addr = (void*)*(tracebk + cur_tb_pos); - ++cur_tb_pos; - } -} - -/* Converts addr into a symbolic traceback, and stores the result in buf - with a format suitable for gnatmem */ - -void __gnat_gmem_symbolic (void * addr, char* buf, int* length) -{ - void * addresses [] = { addr }; - - __gnat_convert_addresses (addresses, 1, buf, length); -} |