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| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2016-01-04 22:44:25 +0900 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-01-06 23:56:27 +0100 |
| commit | d42417f680f91c45b2a021fcc2c8a5fa1443a245 (patch) | |
| tree | 237dd3c825df67801eaaf03ef367a514fbdbc02f | |
| parent | d41cec56d5c04d88aa2d06986b692cd1fa279748 (diff) | |
openat argument fix.
If argument passing to register case (ex. -mregparam=3).
This case set all parameters set to register from caller.
But callee refer to stack. So can't get parameter.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
| -rw-r--r-- | libc/sysdeps/linux/common/openat.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/openat.c b/libc/sysdeps/linux/common/openat.c index f6032da2c..f71567cdc 100644 --- a/libc/sysdeps/linux/common/openat.c +++ b/libc/sysdeps/linux/common/openat.c @@ -8,11 +8,24 @@ #include <sys/syscall.h> #include <fcntl.h> +#include <stdarg.h> #ifdef __NR_openat # define __NR___syscall_openat __NR_openat static __inline__ _syscall4(int, __syscall_openat, int, fd, const char *, file, int, oflag, mode_t, mode) -strong_alias_untyped(__syscall_openat,openat) + +int __openat(int fd, const char *file, int o_flag, ...) +{ + va_list ap; + mode_t mode; + + va_start(ap, o_flag); + mode = va_arg(ap, int); + va_end(ap); + return __syscall_openat(fd, file, o_flag, mode); +} + +strong_alias_untyped(__openat,openat) libc_hidden_def(openat) #else /* should add emulation with open() and /proc/self/fd/ ... */ |