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ia64: fix set-but-unused warnings with syscalls 

These macros often set up a variable that later macros sometimes do
not use.  Add unused attribute to avoid that.

Similarly, the ia64 code tends to check the err field rather than
the val (which is opposite of most arches) leading to the same
kind of warning.  Replace this with a dummy reference.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2013-03-11 01:22:12 +00:00
parent a186dc916c
commit 4fdd5ec125
2 changed files with 11 additions and 2 deletions
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6
ports/ChangeLog.ia64
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@ -1,3 +1,9 @@
2013-03-12 Mike Frysinger <vapier@gentoo.org>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (INTERNAL_SYSCALL_DECL): Add
__attribute__ ((unused)) to err decl.
(INTERNAL_SYSCALL_ERROR_P): Add (void)val dummy reference.
2013-03-12 Mike Frysinger <vapier@gentoo.org>
* sysdeps/ia64/fpu/libm_error.c (STATIC): Delete redundant definition.

7
ports/sysdeps/unix/sysv/linux/ia64/sysdep.h
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@ -252,7 +252,7 @@
_retval; })
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) long int err
#define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused))
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
@ -264,7 +264,10 @@
INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val, err) (err == -1)
#define INTERNAL_SYSCALL_ERROR_P(val, err) \
({ (void) (val); \
(err == -1); \
})
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val, err) (val)