Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
Ready to be installed?
Thanks,
Martin
Fix issues mentioned in the PR.
PR libbacktrace/103167
libbacktrace/ChangeLog:
* elf.c (elf_uncompress_lzma_block): Cast to unsigned int.
(elf_uncompress_lzma): Likewise.
* xztest.c (test_samples): memcpy only if v > 0.
Co-Authored-By: Andrew Pinski <apin...@marvell.com>
---
libbacktrace/elf.c | 8 ++++----
libbacktrace/xztest.c | 2 +-
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/libbacktrace/elf.c b/libbacktrace/elf.c
index 79d56146fc6..e69ac41c88b 100644
--- a/libbacktrace/elf.c
+++ b/libbacktrace/elf.c
@@ -3175,7 +3175,7 @@ elf_uncompress_lzma_block (const unsigned char
*compressed,
stream_crc = (compressed[off]
| (compressed[off + 1] << 8)
| (compressed[off + 2] << 16)
- | (compressed[off + 3] << 24));
+ | ((unsigned)(compressed[off + 3]) << 24));
if (unlikely (computed_crc != stream_crc))
{
elf_uncompress_failed ();
@@ -3788,7 +3788,7 @@ elf_uncompress_lzma (struct backtrace_state *state,
stream_crc = (compressed[8]
| (compressed[9] << 8)
| (compressed[10] << 16)
- | (compressed[11] << 24));
+ | ((unsigned)(compressed[11]) << 24));
if (unlikely (computed_crc != stream_crc))
{
elf_uncompress_failed ();
@@ -3832,7 +3832,7 @@ elf_uncompress_lzma (struct backtrace_state *state,
stream_crc = (compressed[offset - 4]
| (compressed[offset - 3] << 8)
| (compressed[offset - 2] << 16)
- | (compressed[offset - 1] << 24));
+ | ((unsigned)(compressed[offset - 1]) << 24));
if (unlikely (computed_crc != stream_crc))
{
elf_uncompress_failed ();
@@ -3891,7 +3891,7 @@ elf_uncompress_lzma (struct backtrace_state *state,
stream_crc = (compressed[offset]
| (compressed[offset + 1] << 8)
| (compressed[offset + 2] << 16)
- | (compressed[offset + 3] << 24));
+ | ((unsigned)(compressed[offset + 3]) << 24));
if (unlikely (computed_crc != stream_crc))
{
elf_uncompress_failed ();
diff --git a/libbacktrace/xztest.c b/libbacktrace/xztest.c
index b2533cb1804..6c60ff50159 100644
--- a/libbacktrace/xztest.c
+++ b/libbacktrace/xztest.c
@@ -172,7 +172,7 @@ test_samples (struct backtrace_state *state)
tests[i].name, uncompressed_len, v);
++failures;
}
- else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0)
+ else if (v > 0 && memcmp (tests[i].uncompressed, uncompressed, v) !=
0)
{
size_t j;
--
2.33.1
