diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/init-first.c | 56 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/libc-vdso.h | 24 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h | 95 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h | 72 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/sched_getcpu.c | 3 |
5 files changed, 81 insertions, 169 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/init-first.c b/sysdeps/unix/sysv/linux/powerpc/init-first.c index b4917d12a5..ee91c0bf9e 100644 --- a/sysdeps/unix/sysv/linux/powerpc/init-first.c +++ b/sysdeps/unix/sysv/linux/powerpc/init-first.c @@ -23,17 +23,19 @@ # undef __clock_getres # include <libc-vdso.h> -void *__vdso_gettimeofday attribute_hidden; -void *__vdso_clock_gettime; -void *__vdso_clock_getres; -void *__vdso_get_tbfreq; -void *__vdso_getcpu; -void *__vdso_time; +int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) + attribute_hidden; +int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *); +int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *); +unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void); +int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *); +time_t (*VDSO_SYMBOL(time)) (time_t *); + #if defined(__PPC64__) || defined(__powerpc64__) -void *__vdso_sigtramp_rt64; +void *VDSO_SYMBOL(sigtramp_rt64); #else -void *__vdso_sigtramp32; -void *__vdso_sigtramp_rt32; +void *VDSO_SYMBOL(sigtramp32); +void *VDSO_SYMBOL(sigtramp_rt32); #endif static inline void @@ -41,26 +43,42 @@ _libc_vdso_platform_setup (void) { PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565); - __vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615); + void *p = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (gettimeofday) = p; - __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615); + p = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (clock_gettime) = p; - __vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615); + p = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (clock_getres) = p; - __vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615); + p = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (get_tbfreq) = p; - __vdso_getcpu = _dl_vdso_vsym ("__kernel_getcpu", &linux2615); + p = _dl_vdso_vsym ("__kernel_getcpu", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (getcpu) = p; - __vdso_time = _dl_vdso_vsym ("__kernel_time", &linux2615); + p = _dl_vdso_vsym ("__kernel_time", &linux2615); + PTR_MANGLE (p); + VDSO_SYMBOL (time) = p; /* PPC64 uses only one signal trampoline symbol, while PPC32 will use two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not - (__kernel_sigtramp32). */ + (__kernel_sigtramp32). + There is no need to pointer mangle these symbol because they will + used only for pointer comparison. */ #if defined(__PPC64__) || defined(__powerpc64__) - __vdso_sigtramp_rt64 = _dl_vdso_vsym ("__kernel_sigtramp_rt64", &linux2615); + VDSO_SYMBOL(sigtramp_rt64) = _dl_vdso_vsym ("__kernel_sigtramp_rt64", + &linux2615); #else - __vdso_sigtramp32 = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615); - __vdso_sigtramp_rt32 = _dl_vdso_vsym ("__kernel_sigtramp_rt32", &linux2615); + VDSO_SYMBOL(sigtramp32) = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615); + VDSO_SYMBOL(sigtramp_rt32) = _dl_vdso_vsym ("__kernel_sigtramp_rt32", + &linux2615); #endif } diff --git a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h index 63a7a9bf52..5868d248eb 100644 --- a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h +++ b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h @@ -22,23 +22,21 @@ #ifdef SHARED -extern void *__vdso_gettimeofday attribute_hidden; +#include <sysdep-vdso.h> -extern void *__vdso_clock_gettime; - -extern void *__vdso_clock_getres; - -extern void *__vdso_get_tbfreq; - -extern void *__vdso_getcpu; - -extern void *__vdso_time; +extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) + attribute_hidden; +extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *); +extern int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *); +extern unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void); +extern int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *); +extern time_t (*VDSO_SYMBOL(time)) (time_t *); #if defined(__PPC64__) || defined(__powerpc64__) -extern void *__vdso_sigtramp_rt64; +extern void *VDSO_SYMBOL(sigtramp_rt64); #else -extern void *__vdso_sigtramp32; -extern void *__vdso_sigtramp_rt32; +extern void *VDSO_SYMBOL(sigtramp32); +extern void *VDSO_SYMBOL(sigtramp_rt32); #endif #if (defined(__PPC64__) || defined(__powerpc64__)) && _CALL_ELF != 2 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h index 0b41e8cae0..cbce324159 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h @@ -50,77 +50,6 @@ # include <errno.h> -# ifdef SHARED -# define INLINE_VSYSCALL(name, nr, args...) \ - ({ \ - __label__ out; \ - __label__ iserr; \ - INTERNAL_SYSCALL_DECL (sc_err); \ - long int sc_ret; \ - \ - if (__vdso_##name != NULL) \ - { \ - sc_ret = \ - INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, long int, nr, ##args);\ - 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; \ - }) -# else -# define INLINE_VSYSCALL(name, nr, args...) \ - INLINE_SYSCALL (name, nr, ##args) -# endif - -# ifdef SHARED -# define INTERNAL_VSYSCALL(name, err, nr, args...) \ - ({ \ - __label__ out; \ - long int v_ret; \ - \ - if (__vdso_##name != NULL) \ - { \ - v_ret = \ - INTERNAL_VSYSCALL_NCS (__vdso_##name, err, long int, nr, ##args); \ - 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 INTERNAL_VSYSCALL(name, err, nr, args...) \ - INTERNAL_SYSCALL (name, err, nr, ##args) -# endif - -# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \ - ({ \ - type sc_ret = ENOSYS; \ - \ - if (__vdso_##name != NULL) \ - sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, type, nr, ##args); \ - else \ - err = 1 << 28; \ - sc_ret; \ - }) - -/* List of system calls which are supported as vsyscalls. */ -# define HAVE_CLOCK_GETRES_VSYSCALL 1 -# define HAVE_CLOCK_GETTIME_VSYSCALL 1 - /* Define a macro which expands inline into the wrapper code for a VDSO call. This use is for internal calls that do not need to handle errors normally. It will never touch errno. @@ -128,7 +57,7 @@ function call, with the exception of LR (which is needed for the "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal an error return status). */ -# define INTERNAL_VSYSCALL_NCS(funcptr, err, type, nr, args...) \ +# define INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, type, args...) \ ({ \ register void *r0 __asm__ ("r0"); \ register long int r3 __asm__ ("r3"); \ @@ -155,6 +84,9 @@ rval; \ }) +#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \ + INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, long int, args) + # undef INLINE_SYSCALL # define INLINE_SYSCALL(name, nr, args...) \ ({ \ @@ -216,6 +148,25 @@ # undef INTERNAL_SYSCALL_ERRNO # define INTERNAL_SYSCALL_ERRNO(val, err) (val) +# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \ + ({ \ + type sc_ret = ENOSYS; \ + \ + __typeof (__vdso_##name) vdsop = __vdso_##name; \ + PTR_DEMANGLE (vdsop); \ + if (vdsop != NULL) \ + sc_ret = \ + INTERNAL_VSYSCALL_CALL_TYPE (vdsop, err, nr, type, ##args); \ + else \ + err = 1 << 28; \ + sc_ret; \ + }) + +/* List of system calls which are supported as vsyscalls. */ +# define HAVE_CLOCK_GETRES_VSYSCALL 1 +# define HAVE_CLOCK_GETTIME_VSYSCALL 1 + + # define LOADARGS_0(name, dummy) \ r0 = name # define LOADARGS_1(name, __arg1) \ diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h index 324e19ba9a..a727f38ee5 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h @@ -61,74 +61,17 @@ #endif /* __ASSEMBLER__ */ -/* 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; \ - \ - if (__vdso_##name != NULL) \ - { \ - sc_ret = \ - INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, long int, nr, ##args);\ - 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; \ - }) -#else -# define INLINE_VSYSCALL(name, nr, args...) \ - INLINE_SYSCALL (name, nr, ##args) -#endif - -#ifdef SHARED -# define INTERNAL_VSYSCALL(name, err, nr, args...) \ - ({ \ - __label__ out; \ - long int v_ret; \ - \ - if (__vdso_##name != NULL) \ - { \ - v_ret = \ - INTERNAL_VSYSCALL_NCS (__vdso_##name, err, long int, nr, ##args); \ - 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 INTERNAL_VSYSCALL(name, err, nr, args...) \ - INTERNAL_SYSCALL (name, err, nr, ##args) -#endif - /* This version is for internal uses when there is no desire to set errno */ #define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \ ({ \ type sc_ret = ENOSYS; \ \ - if (__vdso_##name != NULL) \ - sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, type, nr, ##args); \ + __typeof (__vdso_##name) vdsop = __vdso_##name; \ + PTR_DEMANGLE (vdsop); \ + if (vdsop != NULL) \ + sc_ret = \ + INTERNAL_VSYSCALL_CALL_TYPE (vdsop, err, type, nr, ##args); \ else \ err = 1 << 28; \ sc_ret; \ @@ -144,7 +87,7 @@ gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set) the negation of the return value in the kernel gets reverted. */ -#define INTERNAL_VSYSCALL_NCS(funcptr, err, type, nr, args...) \ +#define INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, type, nr, args...) \ ({ \ register void *r0 __asm__ ("r0"); \ register long int r3 __asm__ ("r3"); \ @@ -168,6 +111,9 @@ rval; \ }) +#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \ + INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, long int, nr, args) + #undef INLINE_SYSCALL /* This version is for kernels that implement system calls that diff --git a/sysdeps/unix/sysv/linux/powerpc/sched_getcpu.c b/sysdeps/unix/sysv/linux/powerpc/sched_getcpu.c index 5bf540c19a..f93be0119a 100644 --- a/sysdeps/unix/sysv/linux/powerpc/sched_getcpu.c +++ b/sysdeps/unix/sysv/linux/powerpc/sched_getcpu.c @@ -17,8 +17,7 @@ #include <sched.h> #include <sysdep.h> -#include <libc-vdso.h> - +#include <sysdep-vdso.h> int sched_getcpu (void) |