diff options
| author | Phil Carmody <ext-phil.2.carmody@nokia.com> | 2011-07-14 15:07:13 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-07-21 14:10:00 +0200 |
| commit | 497888cf69bf607ac1fe061a6437e0a670b0022f (patch) | |
| tree | ac0897eff214f09c89d5f4fbc3c03ef9d010a83c /arch/powerpc/include/asm/elf.h | |
| parent | 06b72d06d6b182bdaaaec686dbd8b602949521ee (diff) | |
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
All these are instances of
#define NAME value;
or
#define NAME(params_opt) value;
These of course fail to build when used in contexts like
if(foo $OP NAME)
while(bar $OP NAME)
and may silently generate the wrong code in contexts such as
foo = NAME + 1; /* foo = value; + 1; */
bar = NAME - 1; /* bar = value; - 1; */
baz = NAME & quux; /* baz = value; & quux; */
Reported on comp.lang.c,
Message-ID: <ab0d55fe-25e5-482b-811e-c475aa6065c3@c29g2000yqd.googlegroups.com>
Initial analysis of the dangers provided by Keith Thompson in that thread.
There are many more instances of more complicated macros having unnecessary
trailing semicolons, but this pile seems to be all of the cases of simple
values suffering from the problem. (Thus things that are likely to be found
in one of the contexts above, more complicated ones aren't.)
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/powerpc/include/asm/elf.h')
| -rw-r--r-- | arch/powerpc/include/asm/elf.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index 2b917c69ed1..3bf9cca3514 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -267,7 +267,7 @@ extern int ucache_bsize; struct linux_binprm; extern int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); -#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b); +#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b) /* 1GB for 64bit, 8MB for 32bit */ #define STACK_RND_MASK (is_32bit_task() ? \ @@ -298,7 +298,7 @@ do { \ NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize); \ NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize); \ NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize); \ - VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base) \ + VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base); \ } while (0) /* PowerPC64 relocations defined by the ABIs */ |