diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | stdlib/bug-getcontext.c | 9 |
2 files changed, 13 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 7c725856d8..95f983ff49 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2016-11-11 Joseph Myers <joseph@codesourcery.com> + * stdlib/bug-getcontext.c: Include <libc-internal.h>. + (do_test): Disable -Wmaybe-uninitialized around uses of + except_mask. + * sysdeps/unix/sysv/linux/sh/sys/user.h: Include <stddef.h>. 2016-11-10 Chris Metcalf <cmetcalf@mellanox.com> diff --git a/stdlib/bug-getcontext.c b/stdlib/bug-getcontext.c index 133ee91eff..c4072129a6 100644 --- a/stdlib/bug-getcontext.c +++ b/stdlib/bug-getcontext.c @@ -5,6 +5,7 @@ #include <stdio.h> #include <stdlib.h> #include <ucontext.h> +#include <libc-internal.h> static int do_test (void) @@ -49,6 +50,13 @@ do_test (void) printf ("\nDone with getcontext()!\n"); fflush (NULL); + /* On nios2 and tilepro, GCC 5 warns that except_mask may be used + uninitialized. Because it is always initialized and nothing in + this test ever calls setcontext (a setcontext call could result + in local variables being clobbered on the second return from + getcontext), in fact an uninitialized use is not possible. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized"); int mask = fegetexcept (); if (mask != except_mask) { @@ -59,6 +67,7 @@ do_test (void) printf("\nAt end fegetexcept() returned %d, expected: %d.\n", mask, except_mask); + DIAG_POP_NEEDS_COMMENT; return 0; } |