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authorJosh Stone <[email protected]>2015-02-11 14:25:37 -0800
committerJosh Stone <[email protected]>2015-02-11 15:50:44 -0800
commit3d11410c481ead29ac52974d05073057d5ca5264 (patch)
tree2195a6e7e8d52aeebfcc508898b33e2e6c2ccfdc
parent031db7ce5f149c8469ac33f688a09ffb15c5d85d (diff)
tests: ensure backtrace.c exec_dump sets jmp
With CFLAGS='-Og -g', F21 gcc hits -Werror=maybe-uninitialized on jmp in the call "prepare_thread (pid2, jmp)". It's fine with -O2/-O0. The only way this could be unset is if the loop before ran to completion, and there's already an assert against this case. This patch initializes jmp anyway to convince gcc it's ok. Signed-off-by: Josh Stone <[email protected]>
-rw-r--r--tests/ChangeLog4
-rw-r--r--tests/backtrace.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 5091a9b7..9d3290f2 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,7 @@
+2015-02-11 Josh Stone <[email protected]>
+
+ * backtrace.c (exec_dump): Initialize jmp.
+
2015-02-11 Petr Machata <[email protected]>
* run-dwarf-ranges.sh: New test.
diff --git a/tests/backtrace.c b/tests/backtrace.c
index 331ba0f2..e109654f 100644
--- a/tests/backtrace.c
+++ b/tests/backtrace.c
@@ -377,7 +377,7 @@ exec_dump (const char *exec)
#else /* __x86_64__ */
is_x86_64_native = ehdr->e_ident[EI_CLASS] == ELFCLASS64;
#endif /* __x86_64__ */
- void (*jmp) (void);
+ void (*jmp) (void) = 0;
if (is_x86_64_native)
{
// Find inferior symbol named "jmp".