+++ /dev/null
-/****************************************************************************
- * *
- * GNATMEM COMPONENTS *
- * *
- * G M E M *
- * *
- * $Revision: 1.3.12.1 $
- * *
- * C Implementation File *
- * *
- * Copyright (C) 2000-2001 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 2, 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. See the GNU General Public License *
- * for more details. You should have received a copy of the GNU General *
- * Public License distributed with GNAT; see file COPYING. If not, write *
- * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, *
- * MA 02111-1307, USA. *
- * *
- * As a special exception, if you link this file with other files to *
- * produce an executable, this file does not by itself cause the resulting *
- * executable to be covered by the GNU General Public License. This except- *
- * ion does not however invalidate any other reasons why the executable *
- * file might be covered by the GNU Public License. *
- * *
- * 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 a-raise.c) 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
- SGI Irix
- GNU/Linux x86
- Solaris (sparc and x86) (*)
- Windows 98/95/NT (x86)
-
- (*) on these targets, the compilation must be done with -funwind-tables to
- be able to build the stack backtrace. */
-
-#ifdef __alpha_vxworks
-#include "vxWorks.h"
-#endif
-
-#ifdef IN_RTS
-#include "tconfig.h"
-#include "tsystem.h"
-#else
-#include "config.h"
-#include "system.h"
-#endif
-
-#include "adaint.h"
-
-static FILE *gmemfile;
-
-/* tb_len is the number of call level supported by this module */
-#define TB_LEN 200
-
-static char *tracebk [TB_LEN];
-static int cur_tb_len, cur_tb_pos;
-
-extern void convert_addresses PARAMS ((char *[], int, void *,
- int *));
-static void gmem_read_backtrace PARAMS ((void));
-static char *spc2nul PARAMS ((char *));
-
-extern int __gnat_gmem_initialize PARAMS ((char *));
-extern void __gnat_gmem_a2l_initialize PARAMS ((char *));
-extern void __gnat_gmem_read_next PARAMS ((char *));
-extern void __gnat_gmem_read_bt_frame PARAMS ((char *));
-\f
-/* Reads backtrace information from gmemfile placing them in tracebk
- array. cur_tb_len is the size of this array. */
-
-static void
-gmem_read_backtrace ()
-{
- fread (&cur_tb_len, sizeof (int), 1, gmemfile);
- fread (tracebk, sizeof (char *), cur_tb_len, gmemfile);
- cur_tb_pos = 0;
-}
-
-/* Initialize gmem feature from the dumpname file. Return 1 if the
- dumpname has been generated by GMEM (instrumented malloc/free) and 0 if not
- (i.e. probably a GDB generated file). */
-
-int
-__gnat_gmem_initialize (dumpname)
- char *dumpname;
-{
- char header[10];
-
- 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;
- }
-
- return 1;
-}
-
-/* Initialize addr2line library */
-
-void
-__gnat_gmem_a2l_initialize (exename)
- char *exename;
-{
- extern char **gnat_argv;
- char s [100];
- int l;
-
- gnat_argv [0] = exename;
- convert_addresses (tracebk, 1, s, &l);
-}
-
-/* Read next allocation of deallocation information from the GMEM file and
- write an alloc/free information in buf to be processed by GDB (see gnatmem
- implementation). */
-
-void
-__gnat_gmem_read_next (buf)
- char *buf;
-{
- void *addr;
- int size;
- int j;
-
- j = fgetc (gmemfile);
- if (j == EOF)
- {
- fclose (gmemfile);
- sprintf (buf, "Program exited.");
- }
- else
- {
- switch (j)
- {
- case 'A' :
- fread (&addr, sizeof (char *), 1, gmemfile);
- fread (&size, sizeof (int), 1, gmemfile);
- sprintf (buf, "ALLOC^%d^0x%lx^", size, (long) addr);
- break;
- case 'D' :
- fread (&addr, sizeof (char *), 1, gmemfile);
- sprintf (buf, "DEALL^0x%lx^", (long) addr);
- break;
- default:
- puts ("GMEM dump file corrupt");
- __gnat_os_exit (1);
- }
-
- gmem_read_backtrace ();
- }
-}
-
-/* Scans the line until the space or new-line character is encountered;
- this character is replaced by nul and its position is returned. */
-
-static char *
-spc2nul (s)
- char *s;
-{
- while (*++s)
- if (*s == ' ' || *s == '\n')
- {
- *s = 0;
- return s;
- }
-
- abort ();
-}
-
-/* Convert backtrace address in tracebk at position cur_tb_pos to a symbolic
- traceback information returned in buf and to be processed by GDB (see
- gnatmem implementation). */
-
-void
-__gnat_gmem_read_bt_frame (buf)
- char *buf;
-{
- int l = 0;
- char s[1000];
- char *name, *file;
-
- if (cur_tb_pos >= cur_tb_len)
- {
- buf [0] = ' ';
- buf [1] = '\0';
- return;
- }
-
- convert_addresses (tracebk + cur_tb_pos, 1, s, &l);
- s[l] = '\0';
- name = spc2nul (s) + 4;
- file = spc2nul (name) + 4;
- spc2nul (file);
- ++cur_tb_pos;
-
- sprintf (buf, "# %s () at %s", name, file);
-}
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