diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/tile')
| -rw-r--r-- | sysdeps/unix/sysv/linux/tile/gettimeofday.c | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tile/init-first.c | 18 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tile/libc-vdso.h | 14 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tile/sysdep.h | 68 |
4 files changed, 31 insertions, 73 deletions
diff --git a/sysdeps/unix/sysv/linux/tile/gettimeofday.c b/sysdeps/unix/sysv/linux/tile/gettimeofday.c index 8d34b40..13382ab 100644 --- a/sysdeps/unix/sysv/linux/tile/gettimeofday.c +++ b/sysdeps/unix/sysv/linux/tile/gettimeofday.c @@ -19,7 +19,9 @@ #include <stddef.h> #include <sys/time.h> #include <time.h> -#include <libc-vdso.h> + +#define HAVE_VSYSCALL +#include <sysdep-vdso.h> int __gettimeofday (struct timeval *tv, struct timezone *tz) diff --git a/sysdeps/unix/sysv/linux/tile/init-first.c b/sysdeps/unix/sysv/linux/tile/init-first.c index 6b0e26a..29356c2 100644 --- a/sysdeps/unix/sysv/linux/tile/init-first.c +++ b/sysdeps/unix/sysv/linux/tile/init-first.c @@ -19,21 +19,27 @@ #include <dl-vdso.h> #include <libc-vdso.h> -struct syscall_return_value (*__vdso_gettimeofday) (struct timeval *, void *) +struct syscall_return_value (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, + void *) attribute_hidden; -struct syscall_return_value (*__vdso_clock_gettime) (clockid_t, - struct timespec *) +struct syscall_return_value (*VDSO_SYMBOL(clock_gettime)) (clockid_t, + struct timespec *) __attribute__ ((nocommon)); -strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden) static inline void _libc_vdso_platform_setup (void) { PREPARE_VERSION (linux26, "LINUX_2.6", 61765110); - __vdso_gettimeofday = _dl_vdso_vsym ("__vdso_gettimeofday", &linux26); - __vdso_clock_gettime = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26); + + void *p = _dl_vdso_vsym ("__vdso_gettimeofday", &linux26); + PTR_MANGLE (p); + VDSO_SYMBOL (gettimeofday) = p; + + p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26); + PTR_MANGLE (p); + VDSO_SYMBOL (clock_gettime) = p; } #define VDSO_SETUP _libc_vdso_platform_setup diff --git a/sysdeps/unix/sysv/linux/tile/libc-vdso.h b/sysdeps/unix/sysv/linux/tile/libc-vdso.h index 44f8286..2f5b23d 100644 --- a/sysdeps/unix/sysv/linux/tile/libc-vdso.h +++ b/sysdeps/unix/sysv/linux/tile/libc-vdso.h @@ -22,19 +22,21 @@ #ifdef SHARED +#include <sysdep-vdso.h> + struct syscall_return_value { long int value; long int error; }; -extern struct syscall_return_value (*__vdso_gettimeofday) (struct timeval *, - void *) +extern struct syscall_return_value (*VDSO_SYMBOL (gettimeofday)) (struct + timeval *, + void *) attribute_hidden; -extern struct syscall_return_value (*__vdso_clock_gettime) (clockid_t, - struct timespec *); - +extern struct syscall_return_value (*VDSO_SYMBOL (clock_gettime)) (clockid_t, + struct + timespec *); #endif - #endif /* _LIBC_VDSO_H */ diff --git a/sysdeps/unix/sysv/linux/tile/sysdep.h b/sysdeps/unix/sysv/linux/tile/sysdep.h index 64c8920..30d52e3 100644 --- a/sysdeps/unix/sysv/linux/tile/sysdep.h +++ b/sysdeps/unix/sysv/linux/tile/sysdep.h @@ -202,71 +202,19 @@ "=R02" (_clobber_r2), "=R03" (_clobber_r3), "=R04" (_clobber_r4), \ "=R05" (_clobber_r5), "=R10" (_clobber_r10) -/* This version is for kernels that implement system calls that - behave like function calls as far as register saving. - It falls back to the syscall in the case that the vDSO doesn't - exist or fails for ENOSYS */ -# ifdef SHARED -# define INLINE_VSYSCALL(name, nr, args...) \ - ({ \ - __label__ out; \ - __label__ iserr; \ - INTERNAL_SYSCALL_DECL (sc_err); \ - long int sc_ret; \ - \ - __typeof (__vdso_##name) vdsop = __vdso_##name; \ - if (vdsop != NULL) \ - { \ - struct syscall_return_value rv = vdsop (args); \ - sc_ret = rv.value; \ - sc_err = rv.error; \ - if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \ - goto out; \ - if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \ - goto iserr; \ - } \ - \ - sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, ##args); \ - if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \ - { \ - iserr: \ - __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \ - sc_ret = -1L; \ - } \ - out: \ - sc_ret; \ - }) -# define INTERNAL_VSYSCALL(name, err, nr, args...) \ - ({ \ - __label__ out; \ - long int v_ret; \ - \ - __typeof (__vdso_##name) vdsop = __vdso_##name; \ - if (vdsop != NULL) \ - { \ - struct syscall_return_value rv = vdsop (args); \ - v_ret = rv.value; \ - err = rv.error; \ - if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \ - || INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \ - goto out; \ - } \ - v_ret = INTERNAL_SYSCALL (name, err, nr, ##args); \ - out: \ - v_ret; \ - }) -# else -# define INLINE_VSYSCALL(name, nr, args...) \ - INLINE_SYSCALL (name, nr, ##args) -# define INTERNAL_VSYSCALL(name, err, nr, args...) \ - INTERNAL_SYSCALL (name, err, nr, ##args) -# endif -#endif /* not __ASSEMBLER__ */ +#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \ + ({ \ + struct syscall_return_value rv = funcptr (args); \ + err = rv.error; \ + rv.value; \ + }) /* List of system calls which are supported as vsyscalls. */ #define HAVE_CLOCK_GETTIME_VSYSCALL 1 +#endif /* __ASSEMBLER__ */ + /* Pointer mangling support. */ #if IS_IN (rtld) /* We cannot use the thread descriptor because in ld.so we use setjmp |