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authorUlf Hermann <ulf.hermann@qt.io>2017-04-07 15:57:37 +0200
committerUlf Hermann <ulf.hermann@qt.io>2017-04-26 13:06:36 +0000
commitbb8bd71deb85ce7818fa747c3297d4b0ed7cf367 (patch)
treefdb700765325c665dc68a8e4b0b7e1f307db3541 /libdwfl
parentdd25560eb6973014066321821060b5cec18204a4 (diff)
Avoid signed/unsigned comparison
Some compilers implicitly cast the result of uint_fast16_t * uint_fast16_t to something signed and then complain about the comparison to (unsigned) size_t. Casting phnum to size_t is a good idea anyway as 16bit multiplication can easily overflow and we are not checking for this. Change-Id: I073202d433d75b540ca042d15c364187a08fec6c Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Diffstat (limited to 'libdwfl')
-rw-r--r--libdwfl/ChangeLog4
-rw-r--r--libdwfl/elf-from-memory.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/libdwfl/ChangeLog b/libdwfl/ChangeLog
index 76359e20..f605f466 100644
--- a/libdwfl/ChangeLog
+++ b/libdwfl/ChangeLog
@@ -1,5 +1,9 @@
2017-04-20 Ulf Hermann <ulf.hermann@qt.io>
+ * elf-from-memory.c: Explicitly cast phnum to size_t.
+
+2017-04-20 Ulf Hermann <ulf.hermann@qt.io>
+
* libdwflP.h: Don't include config.h.
* argp-std.c: Include config.h.
* cu.c: Likewise.
diff --git a/libdwfl/elf-from-memory.c b/libdwfl/elf-from-memory.c
index dd42e954..12a0a1be 100644
--- a/libdwfl/elf-from-memory.c
+++ b/libdwfl/elf-from-memory.c
@@ -172,7 +172,7 @@ elf_from_remote_memory (GElf_Addr ehdr_vma,
{
/* Read in the program headers. */
- if (initial_bufsize < phnum * phentsize)
+ if (initial_bufsize < (size_t)phnum * phentsize)
{
unsigned char *newbuf = realloc (buffer, phnum * phentsize);
if (newbuf == NULL)