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| author | Denis Vlasenko | 2007-05-31 22:16:38 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2007-05-31 22:16:38 +0000 |
| commit | fad2b86c9e7eaadb973b50a1bc0e2accc1a96cfd (patch) | |
| tree | f2d3fe127fb6c3c1d3b919631de6e6ed7cbc1791 /include | |
| parent | c2f011aa031b8598422953d5e9a93ca008ad0867 (diff) | |
| download | busybox-fad2b86c9e7eaadb973b50a1bc0e2accc1a96cfd.zip busybox-fad2b86c9e7eaadb973b50a1bc0e2accc1a96cfd.tar.gz | |
use "glibc errno" trick not only for ash, but for entire busybox
(add/remove: 1/1 grow/shrink: 37/37 up/down: 139/-228) Total: -89 bytes
Diffstat (limited to 'include')
| -rw-r--r-- | include/libbb.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h index 5e0b438..385b30f 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -165,6 +165,14 @@ #endif +#if defined(__GLIBC__) +/* glibc uses __errno_location() to get a ptr to errno */ +/* We can just memorize it once - no multithreading in busybox :) */ +extern int *const bb_errno; +#undef errno +#define errno (*bb_errno) +#endif + #if defined(__GLIBC__) && __GLIBC__ < 2 int vdprintf(int d, const char *format, va_list ap); #endif |