| Revision | 162e01e2e7b2b80711ea4701444f083732861ecf (tree) |
|---|---|
| Time | 2016-01-04 21:47:29 |
| Author | Yoshinori Sato <ysato@user...> |
| Commiter | Yoshinori Sato |
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>
libc/sysdeps/linux/common/openat.c (diff)| @@ -8,11 +8,24 @@ | ||
| 8 | 8 | |
| 9 | 9 | #include <sys/syscall.h> |
| 10 | 10 | #include <fcntl.h> |
| 11 | +#include <stdarg.h> | |
| 11 | 12 | |
| 12 | 13 | #ifdef __NR_openat |
| 13 | 14 | # define __NR___syscall_openat __NR_openat |
| 14 | 15 | static __inline__ _syscall4(int, __syscall_openat, int, fd, const char *, file, int, oflag, mode_t, mode) |
| 15 | -strong_alias_untyped(__syscall_openat,openat) | |
| 16 | + | |
| 17 | +int __openat(int fd, const char *file, int o_flag, ...) | |
| 18 | +{ | |
| 19 | + va_list ap; | |
| 20 | + mode_t mode; | |
| 21 | + | |
| 22 | + va_start(ap, o_flag); | |
| 23 | + mode = va_arg(ap, int); | |
| 24 | + va_end(ap); | |
| 25 | + return __syscall_openat(fd, file, o_flag, mode); | |
| 26 | +} | |
| 27 | + | |
| 28 | +strong_alias_untyped(__openat,openat) | |
| 16 | 29 | libc_hidden_def(openat) |
| 17 | 30 | #else |
| 18 | 31 | /* should add emulation with open() and /proc/self/fd/ ... */ |
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