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authorUlrich Drepper <drepper@redhat.com>1998-07-16 20:08:44 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-16 20:08:44 +0000
commit107f81314155383ab9c0625f3d157be55131f837 (patch)
tree8269ce62db3039a86c13b0c090691081fbf8797c /sysdeps/generic/elf
parent7a2fd787a7aa4de58b9e3db5fe996f5ea89a3180 (diff)
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Update.
1998-07-16 20:01 Ulrich Drepper <drepper@cygnus.com> * debug/Makefile (routines): Add backtracesymsfd. Add rules to generate libSegFault. * debug/Versions: Add __backtrace_symbols_fd and backtrace_symbols_fd. * debug/execinfo.h: Declare backtrace_symbols_fd. * sysdeps/generic/backtracesymsfd.c: New file. * sysdeps/generic/elf/backtracesymsfd.c: New file. * sysdeps/generic/segfault.c: New file. * sysdeps/generic/sigcontextinfo.h: New file. * sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: New file. * sysdeps/generic/elf/backtracesyms.c: Remove unneeded +.
Diffstat (limited to 'sysdeps/generic/elf')
-rw-r--r--sysdeps/generic/elf/backtracesyms.c8
-rw-r--r--sysdeps/generic/elf/backtracesymsfd.c109
2 files changed, 113 insertions, 4 deletions
diff --git a/sysdeps/generic/elf/backtracesyms.c b/sysdeps/generic/elf/backtracesyms.c
index 7de0bfc9ee..a14ac596b4 100644
--- a/sysdeps/generic/elf/backtracesyms.c
+++ b/sysdeps/generic/elf/backtracesyms.c
@@ -55,9 +55,9 @@ __backtrace_symbols (array, size)
+ (info[cnt].dli_sname
? strlen (info[cnt].dli_sname) + 3 + WORD_WIDTH + 3
: 1)
- + WORD_WIDTH + 6);
+ + WORD_WIDTH + 5);
else
- total += 6 + WORD_WIDTH;
+ total += 5 + WORD_WIDTH;
}
/* Allocate memory for the result. */
@@ -80,7 +80,7 @@ __backtrace_symbols (array, size)
else
sprintf (buf, "-0x%x", info[cnt].dli_saddr - array[cnt]);
- last += 1 + sprintf (last, "%s%s%s%s%s[+%p]",
+ last += 1 + sprintf (last, "%s%s%s%s%s[%p]",
info[cnt].dli_fname ?: "",
info[cnt].dli_sname ? "(" : "",
info[cnt].dli_sname ?: "",
@@ -89,7 +89,7 @@ __backtrace_symbols (array, size)
array[cnt]);
}
else
- last += 1 + sprintf (last, "[+%p]", array[cnt]);
+ last += 1 + sprintf (last, "[%p]", array[cnt]);
}
}
diff --git a/sysdeps/generic/elf/backtracesymsfd.c b/sysdeps/generic/elf/backtracesymsfd.c
new file mode 100644
index 0000000000..b67b64529e
--- /dev/null
+++ b/sysdeps/generic/elf/backtracesymsfd.c
@@ -0,0 +1,109 @@
+/* Write formatted list with names for addresses in backtrace to a file.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <execinfo.h>
+#include <string.h>
+#include <sys/uio.h>
+
+#include <stdio-common/_itoa.h>
+#include <elf/ldsodefs.h>
+
+#if __ELF_NATIVE_CLASS == 32
+# define WORD_WIDTH 8
+#else
+/* We assyme 64bits. */
+# define WORD_WIDTH 16
+#endif
+
+
+void
+__backtrace_symbols_fd (array, size, fd)
+ void *const *array;
+ int size;
+ int fd;
+{
+ struct iovec iov[9];
+ int cnt;
+
+ for (cnt = 0; cnt < size; ++cnt)
+ {
+ char buf[WORD_WIDTH];
+ Dl_info info;
+ size_t last = 0;
+
+ if (_dl_addr (array[cnt], &info)
+ && info.dli_fname && info.dli_fname[0] != '\0')
+ {
+ /* Name of the file. */
+ iov[0].iov_base = (void *) info.dli_fname;
+ iov[0].iov_len = strlen (info.dli_fname);
+ last = 1;
+
+ /* Symbol name. */
+ if (info.dli_sname != NULL)
+ {
+ char buf2[WORD_WIDTH];
+ size_t diff;
+
+ iov[1].iov_base = (void *) "(";
+ iov[1].iov_len = 1;
+ iov[2].iov_base = (void *) info.dli_sname;
+ iov[2].iov_len = strlen (info.dli_sname);
+
+ if (array[cnt] >= (void *) info.dli_saddr)
+ {
+ iov[3].iov_base = (void *) "+0x";
+ diff = array[cnt] - info.dli_saddr;
+ }
+ else
+ {
+ iov[3].iov_base = (void *) "-0x";
+ diff = info.dli_saddr - array[cnt];
+ }
+ iov[3].iov_len = 3;
+
+ iov[4].iov_base = _itoa_word ((unsigned long int) diff,
+ &buf2[WORD_WIDTH], 16, 0);
+ iov[4].iov_len = &buf2[WORD_WIDTH] - (char *) iov[4].iov_base;
+
+ iov[5].iov_base = (void *) ")";
+ iov[5].iov_len = 1;
+
+ last = 6;
+ }
+ }
+
+ iov[last].iov_base = (void *) "[0x";
+ iov[last].iov_len = 3;
+ ++last;
+
+ iov[last].iov_base = _itoa_word ((unsigned long int) array[cnt],
+ &buf[WORD_WIDTH], 16, 0);
+ iov[last].iov_len = &buf[WORD_WIDTH] - (char *) iov[last].iov_base;
+ ++last;
+
+ iov[last].iov_base = (void *) "]\n";
+ iov[last].iov_len = 2;
+ ++last;
+
+ __writev (fd, iov, last);
+ }
+}
+weak_alias (__backtrace_symbols_fd, backtrace_symbols_fd)