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Diffstat (limited to 'libiberty/make-relative-prefix.c')
-rw-r--r--libiberty/make-relative-prefix.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/libiberty/make-relative-prefix.c b/libiberty/make-relative-prefix.c
index fe639d1..fa81399 100644
--- a/libiberty/make-relative-prefix.c
+++ b/libiberty/make-relative-prefix.c
@@ -233,6 +233,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
int i, n, common;
int needed_len;
char *ret = NULL, *ptr, *full_progname;
+ char *alloc_ptr = NULL;
if (progname == NULL || bin_prefix == NULL || prefix == NULL)
return NULL;
@@ -256,7 +257,10 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
#ifdef HAVE_HOST_EXECUTABLE_SUFFIX
len += strlen (HOST_EXECUTABLE_SUFFIX);
#endif
- nstore = (char *) alloca (len);
+ if (len < MAX_ALLOCA_SIZE)
+ nstore = (char *) alloca (len);
+ else
+ alloc_ptr = nstore = (char *) malloc (len);
startp = endp = temp;
while (1)
@@ -312,12 +316,12 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
else
full_progname = strdup (progname);
if (full_progname == NULL)
- return NULL;
+ goto bailout;
prog_dirs = split_directories (full_progname, &prog_num);
free (full_progname);
if (prog_dirs == NULL)
- return NULL;
+ goto bailout;
bin_dirs = split_directories (bin_prefix, &bin_num);
if (bin_dirs == NULL)
@@ -395,6 +399,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
free_split_directories (prog_dirs);
free_split_directories (bin_dirs);
free_split_directories (prefix_dirs);
+ free (alloc_ptr);
return ret;
}