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| author | Joseph Myers <joseph@codesourcery.com> | 2014-11-26 00:45:19 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-11-26 00:45:19 +0000 |
| commit | c82f5c0ce5c1c0180fca311ceb29fd2d59da7441 (patch) | |
| tree | a6365743912e255a581211460da20a88f1cfd97f | |
| parent | 439e1ad6d04e24f76f92ff7f61153fbe489559b9 (diff) | |
| download | glibc-c82f5c0ce5c1c0180fca311ceb29fd2d59da7441.tar.gz glibc-c82f5c0ce5c1c0180fca311ceb29fd2d59da7441.tar.xz glibc-c82f5c0ce5c1c0180fca311ceb29fd2d59da7441.zip | |
Fix warning in setjmp/jmpbug.c.
This patch fixes a "set but not used" warning in setjmp/jmpbug.c. A variable is used only to store the result of alloca. A cast to void is added to avoid the warning, and the variable is made volatile to ensure the call to alloca isn't optimized away for being unused. Tested for x86_64. * setjmp/jmpbug.c (test): Make foo volatile and cast it to void.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | setjmp/jmpbug.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 23fba3607d..d6cedab7eb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2014-11-26 Joseph Myers <joseph@codesourcery.com> + + * setjmp/jmpbug.c (test): Make foo volatile and cast it to + void. + 2014-11-25 Joseph Myers <joseph@codesourcery.com> * stdio-common/tst-printf-round.c (test_hex_in_one_mode): Make diff --git a/setjmp/jmpbug.c b/setjmp/jmpbug.c index 125977b2f7..8594c5a8a7 100644 --- a/setjmp/jmpbug.c +++ b/setjmp/jmpbug.c @@ -14,7 +14,7 @@ static void test (int x) { jmp_buf buf; - char *foo; + char *volatile foo; int arr[100]; arr[77] = x; @@ -25,6 +25,7 @@ test (int x) } foo = (char *) alloca (128); + (void) foo; sub5 (buf); } |