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| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2015-03-13 21:03:10 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2015-03-13 21:12:37 +0100 |
| commit | 21cbb6fe887a30f0777521ec10f0d0d9c2a7da7e (patch) | |
| tree | 73b95a94eae224cddb38c3f8d0b0ce5700ecf8c4 /include/sys/cdefs.h | |
| parent | 8c66e0a6c7987cda9df8c88e84b3d50d573c1dbb (diff) | |
unistd.h: put getppid under XOPEN2K8
Add __LEAF to all __THROW, introduce non-leaf __THROWNL
Adjust affected spots accordingly.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'include/sys/cdefs.h')
| -rw-r--r-- | include/sys/cdefs.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h index 6f81b6a7c..4da981f9a 100644 --- a/include/sys/cdefs.h +++ b/include/sys/cdefs.h @@ -37,20 +37,33 @@ #ifdef __GNUC__ +/* All functions, except those with callbacks or those that + synchronize memory, are leaf functions. */ +# if __GNUC_PREREQ (4, 6) && !defined _LIBC +# define __LEAF , __leaf__ +# define __LEAF_ATTR __attribute__ ((__leaf__)) +# else +# define __LEAF +# define __LEAF_ATTR +# endif + /* GCC can always grok prototypes. For C++ programs we add throw() to help it optimize the function calls. But this works only with gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions as non-throwing using a function attribute since programs can use the -fexceptions options for C code as well. */ # if !defined __cplusplus && __GNUC_PREREQ (3, 3) -# define __THROW __attribute__ ((__nothrow__)) -# define __NTH(fct) __attribute__ ((__nothrow__)) fct +# define __THROW __attribute__ ((__nothrow__ __LEAF)) +# define __THROWNL __attribute__ ((__nothrow__)) +# define __NTH(fct) __attribute__ ((__nothrow__ __LEAF)) fct # else # if defined __cplusplus && __GNUC_PREREQ (2,8) # define __THROW throw () -# define __NTH(fct) fct throw () +# define __THROWNL throw () +# define __NTH(fct) __LEAF_ATTR fct throw () # else # define __THROW +# define __THROWNL # define __NTH(fct) fct # endif # endif @@ -60,6 +73,7 @@ # define __inline /* No inline functions. */ # define __THROW +# define __THROWNL # define __NTH(fct) fct #endif /* GCC. */ @@ -165,9 +179,13 @@ # ifdef __cplusplus # define __REDIRECT_NTH(name, proto, alias) \ name proto __THROW __asm__ (__ASMNAME (#alias)) +# define __REDIRECT_NTHNL(name, proto, alias) \ + name proto __THROWNL __asm__ (__ASMNAME (#alias)) # else # define __REDIRECT_NTH(name, proto, alias) \ name proto __asm__ (__ASMNAME (#alias)) __THROW +# define __REDIRECT_NTHNL(name, proto, alias) \ + name proto __asm__ (__ASMNAME (#alias)) __THROWNL # endif # define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname) # define __ASMNAME2(prefix, cname) __STRING (prefix) cname |