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$NetBSD: patch-execinfo.c,v 1.3 2014/05/04 11:09:56 hauke Exp $
--- execinfo.c.orig 2004-07-19 05:21:09.000000000 +0000
+++ execinfo.c
@@ -36,6 +36,10 @@
#include <string.h>
#include <unistd.h>
+#ifdef __sun
+#include <alloca.h>
+#endif
+
#include "execinfo.h"
#include "stacktraverse.h"
@@ -69,16 +73,15 @@ backtrace(void **buffer, int size)
char **
backtrace_symbols(void *const *buffer, int size)
{
- int i, clen, alen, offset;
+ size_t clen, alen;
+ int i, offset;
char **rval;
- char *cp;
Dl_info info;
clen = size * sizeof(char *);
rval = malloc(clen);
if (rval == NULL)
return NULL;
- (char **)cp = &(rval[size]);
for (i = 0; i < size; i++) {
if (dladdr(buffer[i], &info) != 0) {
if (info.dli_sname == NULL)
@@ -92,14 +95,14 @@ backtrace_symbols(void *const *buffer, i
2 + /* " <" */
strlen(info.dli_sname) + /* "function" */
1 + /* "+" */
- D10(offset) + /* "offset */
+ 10 + /* "offset */
5 + /* "> at " */
strlen(info.dli_fname) + /* "filename" */
1; /* "\0" */
rval = realloc_safe(rval, clen + alen);
if (rval == NULL)
return NULL;
- snprintf(cp, alen, "%p <%s+%d> at %s",
+ snprintf((char *) rval + clen, alen, "%p <%s+%d> at %s",
buffer[i], info.dli_sname, offset, info.dli_fname);
} else {
alen = 2 + /* "0x" */
@@ -108,12 +111,15 @@ backtrace_symbols(void *const *buffer, i
rval = realloc_safe(rval, clen + alen);
if (rval == NULL)
return NULL;
- snprintf(cp, alen, "%p", buffer[i]);
+ snprintf((char *) rval + clen, alen, "%p", buffer[i]);
}
- rval[i] = cp;
- cp += alen;
+ rval[i] = (char *) clen;
+ clen += alen;
}
+ for (i = 0; i < size; i++)
+ rval[i] += (long) rval;
+
return rval;
}
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