|
 |
147e83 |
From 51a8476450158fb522c791c73b7b56dc30a741fc Mon Sep 17 00:00:00 2001
|
|
|
147e83 |
From: Anton Blanchard <anton@samba.org>
|
|
|
147e83 |
Date: Tue, 15 Jan 2013 12:50:46 -0600
|
|
|
147e83 |
Subject: [PATCH 14/42] PowerPC: Rename __kernel_vdso_get_tbfreq to
|
|
|
147e83 |
__kernel_get_tbfreq.
|
|
|
147e83 |
|
|
|
147e83 |
In order for the __kernel_get_tbfreq vDSO call to work the
|
|
|
147e83 |
INTERNAL_VSYSCALL_NCS macro needed to be updated to prevent it from
|
|
|
147e83 |
assuming an integer return type (since the timebase frequency is a 64-bit
|
|
|
147e83 |
value) by specifying the type of the return type as a macro parameter. The
|
|
|
147e83 |
macro then specifically declares the return value as a 'register' (or
|
|
|
147e83 |
implied pair) of the denoted type. The compiler is then informed that this
|
|
|
147e83 |
register (or implied pair) is to be used for the return value.
|
|
|
147e83 |
(cherry picked from commit 471a1672d4d55124de4db8273829f96cc14d424a)
|
|
|
147e83 |
---
|
|
|
147e83 |
sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c | 3 ++-
|
|
|
147e83 |
sysdeps/unix/sysv/linux/powerpc/init-first.c | 2 +-
|
|
|
147e83 |
sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h | 28 +++++++++++----------
|
|
|
147e83 |
sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h | 29 +++++++++++-----------
|
|
|
147e83 |
5 files changed, 55 insertions(+), 29 deletions(-)
|
|
|
147e83 |
|
|
|
147e83 |
diff --git glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c
|
|
|
147e83 |
index a863a27..021594c 100644
|
|
|
147e83 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c
|
|
|
147e83 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c
|
|
|
147e83 |
@@ -41,7 +41,8 @@ __get_clockfreq (void)
|
|
|
147e83 |
/* If we can use the vDSO to obtain the timebase even better. */
|
|
|
147e83 |
#ifdef SHARED
|
|
|
147e83 |
INTERNAL_SYSCALL_DECL (err);
|
|
|
147e83 |
- timebase_freq = INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK (get_tbfreq, err, 0);
|
|
|
147e83 |
+ timebase_freq =
|
|
|
147e83 |
+ INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK (get_tbfreq, err, hp_timing_t, 0);
|
|
|
147e83 |
if (INTERNAL_SYSCALL_ERROR_P (timebase_freq, err)
|
|
|
147e83 |
&& INTERNAL_SYSCALL_ERRNO (timebase_freq, err) == ENOSYS)
|
|
|
147e83 |
#endif
|
|
|
147e83 |
diff --git glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/init-first.c glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/init-first.c
|
|
|
147e83 |
index 6bcb7d5..5587e2a 100644
|
|
|
147e83 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/init-first.c
|
|
|
147e83 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/init-first.c
|
|
|
147e83 |
@@ -41,7 +41,7 @@ _libc_vdso_platform_setup (void)
|
|
|
147e83 |
|
|
|
147e83 |
__vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615);
|
|
|
147e83 |
|
|
|
147e83 |
- __vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_vdso_get_tbfreq", &linux2615);
|
|
|
147e83 |
+ __vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615);
|
|
|
147e83 |
|
|
|
147e83 |
__vdso_getcpu = _dl_vdso_vsym ("__kernel_getcpu", &linux2615);
|
|
|
147e83 |
}
|
|
|
147e83 |
diff --git glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
|
|
|
147e83 |
index da25c01..fa4116e 100644
|
|
|
147e83 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
|
|
|
147e83 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
|
|
|
147e83 |
@@ -60,7 +60,8 @@
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
{ \
|
|
|
147e83 |
- sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args); \
|
|
|
147e83 |
+ sc_ret = \
|
|
|
147e83 |
+ INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, long int, nr, ##args);\
|
|
|
147e83 |
if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
|
|
|
147e83 |
goto out; \
|
|
|
147e83 |
if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \
|
|
|
147e83 |
@@ -90,7 +91,8 @@
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
{ \
|
|
|
147e83 |
- v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
|
|
|
147e83 |
+ v_ret = \
|
|
|
147e83 |
+ INTERNAL_VSYSCALL_NCS (__vdso_##name, err, long int, nr, ##args); \
|
|
|
147e83 |
if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \
|
|
|
147e83 |
|| INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \
|
|
|
147e83 |
goto out; \
|
|
|
147e83 |
@@ -104,12 +106,12 @@
|
|
|
147e83 |
INTERNAL_SYSCALL (name, err, nr, ##args)
|
|
|
147e83 |
# endif
|
|
|
147e83 |
|
|
|
147e83 |
-# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
|
|
|
147e83 |
+# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \
|
|
|
147e83 |
({ \
|
|
|
147e83 |
- long int sc_ret = ENOSYS; \
|
|
|
147e83 |
+ type sc_ret = ENOSYS; \
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
- sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
|
|
|
147e83 |
+ sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, type, nr, ##args); \
|
|
|
147e83 |
else \
|
|
|
147e83 |
err = 1 << 28; \
|
|
|
147e83 |
sc_ret; \
|
|
|
147e83 |
@@ -126,7 +128,7 @@
|
|
|
147e83 |
function call, with the exception of LR (which is needed for the
|
|
|
147e83 |
"sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
|
|
|
147e83 |
an error return status). */
|
|
|
147e83 |
-# define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, args...) \
|
|
|
147e83 |
+# define INTERNAL_VSYSCALL_NCS(funcptr, err, type, nr, args...) \
|
|
|
147e83 |
({ \
|
|
|
147e83 |
register void *r0 __asm__ ("r0"); \
|
|
|
147e83 |
register long int r3 __asm__ ("r3"); \
|
|
|
147e83 |
@@ -139,18 +141,18 @@
|
|
|
147e83 |
register long int r10 __asm__ ("r10"); \
|
|
|
147e83 |
register long int r11 __asm__ ("r11"); \
|
|
|
147e83 |
register long int r12 __asm__ ("r12"); \
|
|
|
147e83 |
+ register type rval __asm__ ("r3"); \
|
|
|
147e83 |
LOADARGS_##nr (funcptr, args); \
|
|
|
147e83 |
__asm__ __volatile__ \
|
|
|
147e83 |
("mtctr %0\n\t" \
|
|
|
147e83 |
"bctrl\n\t" \
|
|
|
147e83 |
"mfcr %0" \
|
|
|
147e83 |
- : "=&r" (r0), \
|
|
|
147e83 |
- "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
|
|
|
147e83 |
- "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
|
|
|
147e83 |
- : ASM_INPUT_##nr \
|
|
|
147e83 |
- : "cr0", "ctr", "lr", "memory"); \
|
|
|
147e83 |
+ : "+r" (r0), "+r" (r3), "+r" (r4), "+r" (r5), "+r" (r6), "+r" (r7), \
|
|
|
147e83 |
+ "+r" (r8), "+r" (r9), "+r" (r10), "+r" (r11), "+r" (r12) \
|
|
|
147e83 |
+ : : "cr0", "ctr", "lr", "memory"); \
|
|
|
147e83 |
err = (long int) r0; \
|
|
|
147e83 |
- (int) r3; \
|
|
|
147e83 |
+ __asm__ __volatile__ ("" : "=r" (rval) : "r" (r3), "r" (r4)); \
|
|
|
147e83 |
+ rval; \
|
|
|
147e83 |
})
|
|
|
147e83 |
|
|
|
147e83 |
# undef INLINE_SYSCALL
|
|
|
147e83 |
@@ -191,7 +193,7 @@
|
|
|
147e83 |
register long int r10 __asm__ ("r10"); \
|
|
|
147e83 |
register long int r11 __asm__ ("r11"); \
|
|
|
147e83 |
register long int r12 __asm__ ("r12"); \
|
|
|
147e83 |
- LOADARGS_##nr(name, args); \
|
|
|
147e83 |
+ LOADARGS_##nr(name, args); \
|
|
|
147e83 |
__asm__ __volatile__ \
|
|
|
147e83 |
("sc \n\t" \
|
|
|
147e83 |
"mfcr %0" \
|
|
|
147e83 |
diff --git glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
|
|
|
147e83 |
index 059cf70..b4cdbbb 100644
|
|
|
147e83 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
|
|
|
147e83 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
|
|
|
147e83 |
@@ -75,7 +75,8 @@
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
{ \
|
|
|
147e83 |
- sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args); \
|
|
|
147e83 |
+ sc_ret = \
|
|
|
147e83 |
+ INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, long int, nr, ##args);\
|
|
|
147e83 |
if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
|
|
|
147e83 |
goto out; \
|
|
|
147e83 |
if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \
|
|
|
147e83 |
@@ -105,7 +106,8 @@
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
{ \
|
|
|
147e83 |
- v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
|
|
|
147e83 |
+ v_ret = \
|
|
|
147e83 |
+ INTERNAL_VSYSCALL_NCS (__vdso_##name, err, long int, nr, ##args); \
|
|
|
147e83 |
if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \
|
|
|
147e83 |
|| INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \
|
|
|
147e83 |
goto out; \
|
|
|
147e83 |
@@ -121,12 +123,12 @@
|
|
|
147e83 |
|
|
|
147e83 |
/* This version is for internal uses when there is no desire
|
|
|
147e83 |
to set errno */
|
|
|
147e83 |
-#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
|
|
|
147e83 |
+#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \
|
|
|
147e83 |
({ \
|
|
|
147e83 |
- long int sc_ret = ENOSYS; \
|
|
|
147e83 |
+ type sc_ret = ENOSYS; \
|
|
|
147e83 |
\
|
|
|
147e83 |
if (__vdso_##name != NULL) \
|
|
|
147e83 |
- sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
|
|
|
147e83 |
+ sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, type, nr, ##args); \
|
|
|
147e83 |
else \
|
|
|
147e83 |
err = 1 << 28; \
|
|
|
147e83 |
sc_ret; \
|
|
|
147e83 |
@@ -142,7 +144,7 @@
|
|
|
147e83 |
gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set)
|
|
|
147e83 |
the negation of the return value in the kernel gets reverted. */
|
|
|
147e83 |
|
|
|
147e83 |
-#define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, args...) \
|
|
|
147e83 |
+#define INTERNAL_VSYSCALL_NCS(funcptr, err, type, nr, args...) \
|
|
|
147e83 |
({ \
|
|
|
147e83 |
register void *r0 __asm__ ("r0"); \
|
|
|
147e83 |
register long int r3 __asm__ ("r3"); \
|
|
|
147e83 |
@@ -151,20 +153,19 @@
|
|
|
147e83 |
register long int r6 __asm__ ("r6"); \
|
|
|
147e83 |
register long int r7 __asm__ ("r7"); \
|
|
|
147e83 |
register long int r8 __asm__ ("r8"); \
|
|
|
147e83 |
+ register type rval __asm__ ("r3"); \
|
|
|
147e83 |
LOADARGS_##nr (funcptr, args); \
|
|
|
147e83 |
__asm__ __volatile__ \
|
|
|
147e83 |
("mtctr %0\n\t" \
|
|
|
147e83 |
"bctrl\n\t" \
|
|
|
147e83 |
"mfcr %0\n\t" \
|
|
|
147e83 |
"0:" \
|
|
|
147e83 |
- : "=&r" (r0), \
|
|
|
147e83 |
- "=&r" (r3), "=&r" (r4), "=&r" (r5), \
|
|
|
147e83 |
- "=&r" (r6), "=&r" (r7), "=&r" (r8) \
|
|
|
147e83 |
- : ASM_INPUT_##nr \
|
|
|
147e83 |
- : "r9", "r10", "r11", "r12", \
|
|
|
147e83 |
- "cr0", "ctr", "lr", "memory"); \
|
|
|
147e83 |
- err = (long int) r0; \
|
|
|
147e83 |
- r3; \
|
|
|
147e83 |
+ : "+r" (r0), "+r" (r3), "+r" (r4), "+r" (r5), "+r" (r6), \
|
|
|
147e83 |
+ "+r" (r7), "+r" (r8) \
|
|
|
147e83 |
+ : : "r9", "r10", "r11", "r12", "cr0", "ctr", "lr", "memory"); \
|
|
|
147e83 |
+ err = (long int) r0; \
|
|
|
147e83 |
+ __asm__ __volatile__ ("" : "=r" (rval) : "r" (r3)); \
|
|
|
147e83 |
+ rval; \
|
|
|
147e83 |
})
|
|
|
147e83 |
|
|
|
147e83 |
#undef INLINE_SYSCALL
|
|
|
147e83 |
--
|
|
|
147e83 |
1.7.11.7
|
|
|
147e83 |
|