dwarf: do not allocate in load_debug_frame (#72)

load_debug_frame calls malloc() in a couple spots, use mmap via
GET_MEMORY instead.  These call paths are infrequent, and are never
freed.

Found by running tcmalloc unit tests on aarch64, when DEBUG_FRAME support is on.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/dwarf/Gfind_proc_info-lsb.c b/src/dwarf/Gfind_proc_info-lsb.c
index c18783e0..58fa51d0 100644
--- a/src/dwarf/Gfind_proc_info-lsb.c
+++ b/src/dwarf/Gfind_proc_info-lsb.c
@@ -119,7 +119,7 @@ load_debug_frame (const char *file, char **buf, size_t *bufsize, int is_local)
     }
 
   *bufsize = shdr->sh_size;
-  *buf = malloc (*bufsize);
+  GET_MEMORY(*buf, *bufsize);
 
   memcpy(*buf, shdr->sh_offset + ei.image, *bufsize);
 
@@ -208,7 +208,7 @@ locate_debug_info (unw_addr_space_t as, unw_word_t addr, const char *dlname,
 
   if (!err)
     {
-      fdesc = malloc (sizeof (struct unw_debug_frame_list));
+      GET_MEMORY(fdesc, sizeof (struct unw_debug_frame_list));
 
       fdesc->start = start;
       fdesc->end = end;