summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/powerpc/bits
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits')
-rw-r--r--libc/sysdeps/linux/powerpc/bits/atomic.h23
-rw-r--r--libc/sysdeps/linux/powerpc/bits/mathdef.h7
-rw-r--r--libc/sysdeps/linux/powerpc/bits/syscalls.h30
-rw-r--r--libc/sysdeps/linux/powerpc/bits/sysdep.h301
4 files changed, 40 insertions, 321 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/atomic.h b/libc/sysdeps/linux/powerpc/bits/atomic.h
index 1088d2f3c..3dbbb3a09 100644
--- a/libc/sysdeps/linux/powerpc/bits/atomic.h
+++ b/libc/sysdeps/linux/powerpc/bits/atomic.h
@@ -335,12 +335,28 @@
# define __arch_atomic_decrement_if_positive_64(mem) \
({ abort (); (*mem)--; })
+#ifdef _ARCH_PWR4
+/*
+ * Newer powerpc64 processors support the new "light weight" sync (lwsync)
+ * So if the build is using -mcpu=[power4,power5,power5+,970] we can
+ * safely use lwsync.
+ */
+# define atomic_read_barrier() __asm ("lwsync" ::: "memory")
+/*
+ * "light weight" sync can also be used for the release barrier.
+ */
+# ifndef UP
+# define __ARCH_REL_INSTR "lwsync"
+# endif
+#else
+
/*
* Older powerpc32 processors don't support the new "light weight"
* sync (lwsync). So the only safe option is to use normal sync
* for all powerpc32 applications.
*/
# define atomic_read_barrier() __asm__ ("sync" ::: "memory")
+#endif
#endif
@@ -387,6 +403,13 @@ typedef uintmax_t uatomic_max_t;
# endif
#endif
+#ifndef MUTEX_HINT_ACQ
+# define MUTEX_HINT_ACQ
+#endif
+#ifndef MUTEX_HINT_REL
+# define MUTEX_HINT_REL
+#endif
+
#define atomic_full_barrier() __asm__ ("sync" ::: "memory")
#define atomic_write_barrier() __asm__ ("eieio" ::: "memory")
diff --git a/libc/sysdeps/linux/powerpc/bits/mathdef.h b/libc/sysdeps/linux/powerpc/bits/mathdef.h
index d6d35dda0..c64b8a395 100644
--- a/libc/sysdeps/linux/powerpc/bits/mathdef.h
+++ b/libc/sysdeps/linux/powerpc/bits/mathdef.h
@@ -46,12 +46,9 @@ typedef double double_t; /* `double' expressions are evaluated as
#endif /* ISO C99 */
#ifndef __NO_LONG_DOUBLE_MATH
-#include <bits/wordsize.h>
/* Signal that we do not really have a `long double'. The disables the
declaration of all the `long double' function variants. */
-# if __WORDSIZE == 32
+# if !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
# define __NO_LONG_DOUBLE_MATH 1
-# elif !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
-# define __NO_LONG_DOUBLE_MATH 1
-# endif /* __WORDSIZE == 32 */
+# endif
#endif /* __NO_LONG_DOUBLE_MATH */
diff --git a/libc/sysdeps/linux/powerpc/bits/syscalls.h b/libc/sysdeps/linux/powerpc/bits/syscalls.h
index f689c60ae..1c7b929b2 100644
--- a/libc/sysdeps/linux/powerpc/bits/syscalls.h
+++ b/libc/sysdeps/linux/powerpc/bits/syscalls.h
@@ -116,7 +116,7 @@
register long int r10 __asm__ ("r10"); \
register long int r11 __asm__ ("r11"); \
register long int r12 __asm__ ("r12"); \
- LOADARGS_##nr (funcptr, args); \
+ LOAD_ARGS_##nr (funcptr, args); \
__asm__ __volatile__ \
("mtctr %0\n\t" \
"bctrl\n\t" \
@@ -153,7 +153,7 @@
register long int r10 __asm__ ("r10"); \
register long int r11 __asm__ ("r11"); \
register long int r12 __asm__ ("r12"); \
- LOADARGS_##nr(name, args); \
+ LOAD_ARGS_##nr(name, args); \
__asm__ __volatile__ \
("sc \n\t" \
"mfcr %0" \
@@ -178,41 +178,41 @@ extern void __illegally_sized_syscall_arg4(void);
extern void __illegally_sized_syscall_arg5(void);
extern void __illegally_sized_syscall_arg6(void);
-# define LOADARGS_0(name, dummy) \
+# define LOAD_ARGS_0(name, dummy) \
r0 = name
-# define LOADARGS_1(name, __arg1) \
+# define LOAD_ARGS_1(name, __arg1) \
long int arg1 = (long int) (__arg1); \
- LOADARGS_0(name, 0); \
+ LOAD_ARGS_0(name, 0); \
if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
__illegally_sized_syscall_arg1 (); \
r3 = arg1
-# define LOADARGS_2(name, __arg1, __arg2) \
+# define LOAD_ARGS_2(name, __arg1, __arg2) \
long int arg2 = (long int) (__arg2); \
- LOADARGS_1(name, __arg1); \
+ LOAD_ARGS_1(name, __arg1); \
if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
__illegally_sized_syscall_arg2 (); \
r4 = arg2
-# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
+# define LOAD_ARGS_3(name, __arg1, __arg2, __arg3) \
long int arg3 = (long int) (__arg3); \
- LOADARGS_2(name, __arg1, __arg2); \
+ LOAD_ARGS_2(name, __arg1, __arg2); \
if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
__illegally_sized_syscall_arg3 (); \
r5 = arg3
-# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
+# define LOAD_ARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
long int arg4 = (long int) (__arg4); \
- LOADARGS_3(name, __arg1, __arg2, __arg3); \
+ LOAD_ARGS_3(name, __arg1, __arg2, __arg3); \
if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
__illegally_sized_syscall_arg4 (); \
r6 = arg4
-# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
+# define LOAD_ARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
long int arg5 = (long int) (__arg5); \
- LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
+ LOAD_ARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
__illegally_sized_syscall_arg5 (); \
r7 = arg5
-# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
+# define LOAD_ARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
long int arg6 = (long int) (__arg6); \
- LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
+ LOAD_ARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
__illegally_sized_syscall_arg6 (); \
r8 = arg6
diff --git a/libc/sysdeps/linux/powerpc/bits/sysdep.h b/libc/sysdeps/linux/powerpc/bits/sysdep.h
deleted file mode 100644
index 478ebdd7a..000000000
--- a/libc/sysdeps/linux/powerpc/bits/sysdep.h
+++ /dev/null
@@ -1,301 +0,0 @@
-/* Copyright (C) 1992,1997-2003,2004,2005,2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _LINUX_POWERPC_SYSDEP_H
-#define _LINUX_POWERPC_SYSDEP_H 1
-
-#include <sysdeps/unix/powerpc/sysdep.h>
-#include <tls.h>
-
-/* Some systen calls got renamed over time, but retained the same semantics.
- Handle them here so they can be catched by both C and assembler stubs in
- glibc. */
-
-#ifdef __NR_pread64
-# ifdef __NR_pread
-# error "__NR_pread and __NR_pread64 both defined???"
-# endif
-# define __NR_pread __NR_pread64
-#endif
-
-#ifdef __NR_pwrite64
-# ifdef __NR_pwrite
-# error "__NR_pwrite and __NR_pwrite64 both defined???"
-# endif
-# define __NR_pwrite __NR_pwrite64
-#endif
-
-/* For Linux we can use the system call table in the header file
- /usr/include/asm/unistd.h
- of the kernel. But these symbols do not follow the SYS_* syntax
- so we have to redefine the `SYS_ify' macro here. */
-#undef SYS_ify
-#ifdef __STDC__
-# define SYS_ify(syscall_name) __NR_##syscall_name
-#else
-# define SYS_ify(syscall_name) __NR_/**/syscall_name
-#endif
-
-#ifndef __ASSEMBLER__
-
-# 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, 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, 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, nr, args...) \
- ({ \
- long int sc_ret = ENOSYS; \
- \
- if (__vdso_##name != NULL) \
- sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, 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.
- On powerpc a system call basically clobbers the same registers like a
- 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, nr, args...) \
- ({ \
- register void *r0 __asm__ ("r0"); \
- register long int r3 __asm__ ("r3"); \
- register long int r4 __asm__ ("r4"); \
- register long int r5 __asm__ ("r5"); \
- register long int r6 __asm__ ("r6"); \
- register long int r7 __asm__ ("r7"); \
- register long int r8 __asm__ ("r8"); \
- register long int r9 __asm__ ("r9"); \
- register long int r10 __asm__ ("r10"); \
- register long int r11 __asm__ ("r11"); \
- register long int r12 __asm__ ("r12"); \
- LOADARGS_##nr (funcptr, args); \
- __asm__ __volatile__ \
- ("mtctr %0\n\t" \
- "bctrl\n\t" \
- "mfcr %0" \
- : "=&r" (r0), \
- "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
- "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
- : ASM_INPUT_##nr \
- : "cr0", "ctr", "lr", "memory"); \
- err = (long int) r0; \
- (int) r3; \
- })
-
-# undef INLINE_SYSCALL
-# define INLINE_SYSCALL(name, nr, args...) \
- ({ \
- INTERNAL_SYSCALL_DECL (sc_err); \
- long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args); \
- if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
- { \
- __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
- sc_ret = -1L; \
- } \
- sc_ret; \
- })
-
-/* Define a macro which expands inline into the wrapper code for a system
- call. This use is for internal calls that do not need to handle errors
- normally. It will never touch errno.
- On powerpc a system call basically clobbers the same registers like a
- 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). */
-
-# undef INTERNAL_SYSCALL_DECL
-# define INTERNAL_SYSCALL_DECL(err) long int err
-
-# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
- ({ \
- register long int r0 __asm__ ("r0"); \
- register long int r3 __asm__ ("r3"); \
- register long int r4 __asm__ ("r4"); \
- register long int r5 __asm__ ("r5"); \
- register long int r6 __asm__ ("r6"); \
- register long int r7 __asm__ ("r7"); \
- register long int r8 __asm__ ("r8"); \
- register long int r9 __asm__ ("r9"); \
- register long int r10 __asm__ ("r10"); \
- register long int r11 __asm__ ("r11"); \
- register long int r12 __asm__ ("r12"); \
- LOADARGS_##nr(name, args); \
- __asm__ __volatile__ \
- ("sc \n\t" \
- "mfcr %0" \
- : "=&r" (r0), \
- "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
- "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
- : ASM_INPUT_##nr \
- : "cr0", "ctr", "memory"); \
- err = r0; \
- (int) r3; \
- })
-# undef INTERNAL_SYSCALL
-# define INTERNAL_SYSCALL(name, err, nr, args...) \
- INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
-
-# undef INTERNAL_SYSCALL_ERROR_P
-# define INTERNAL_SYSCALL_ERROR_P(val, err) \
- ((void) (val), __builtin_expect ((err) & (1 << 28), 0))
-
-# undef INTERNAL_SYSCALL_ERRNO
-# define INTERNAL_SYSCALL_ERRNO(val, err) (val)
-
-# define LOADARGS_0(name, dummy) \
- r0 = name
-# define LOADARGS_1(name, __arg1) \
- long int arg1 = (long int) (__arg1); \
- LOADARGS_0(name, 0); \
- extern void __illegally_sized_syscall_arg1 (void); \
- if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
- __illegally_sized_syscall_arg1 (); \
- r3 = arg1
-# define LOADARGS_2(name, __arg1, __arg2) \
- long int arg2 = (long int) (__arg2); \
- LOADARGS_1(name, __arg1); \
- extern void __illegally_sized_syscall_arg2 (void); \
- if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
- __illegally_sized_syscall_arg2 (); \
- r4 = arg2
-# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
- long int arg3 = (long int) (__arg3); \
- LOADARGS_2(name, __arg1, __arg2); \
- extern void __illegally_sized_syscall_arg3 (void); \
- if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
- __illegally_sized_syscall_arg3 (); \
- r5 = arg3
-# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
- long int arg4 = (long int) (__arg4); \
- LOADARGS_3(name, __arg1, __arg2, __arg3); \
- extern void __illegally_sized_syscall_arg4 (void); \
- if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
- __illegally_sized_syscall_arg4 (); \
- r6 = arg4
-# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
- long int arg5 = (long int) (__arg5); \
- LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
- extern void __illegally_sized_syscall_arg5 (void); \
- if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
- __illegally_sized_syscall_arg5 (); \
- r7 = arg5
-# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
- long int arg6 = (long int) (__arg6); \
- LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
- extern void __illegally_sized_syscall_arg6 (void); \
- if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
- __illegally_sized_syscall_arg6 (); \
- r8 = arg6
-
-# define ASM_INPUT_0 "0" (r0)
-# define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
-# define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
-# define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
-# define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
-# define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
-# define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)
-
-#endif /* __ASSEMBLER__ */
-
-
-/* Pointer mangling support. */
-#if defined NOT_IN_libc && defined IS_IN_rtld
-/* We cannot use the thread descriptor because in ld.so we use setjmp
- earlier than the descriptor is initialized. */
-#else
-# ifdef __ASSEMBLER__
-# define PTR_MANGLE(reg, tmpreg) \
- lwz tmpreg,POINTER_GUARD(r2); \
- xor reg,tmpreg,reg
-# define PTR_MANGLE2(reg, tmpreg) \
- xor reg,tmpreg,reg
-# define PTR_MANGLE3(destreg, reg, tmpreg) \
- lwz tmpreg,POINTER_GUARD(r2); \
- xor destreg,tmpreg,reg
-# define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
-# define PTR_DEMANGLE2(reg, tmpreg) PTR_MANGLE2 (reg, tmpreg)
-# define PTR_DEMANGLE3(destreg, reg, tmpreg) PTR_MANGLE3 (destreg, reg, tmpreg)
-# else
-# define PTR_MANGLE(var) \
- (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
-# define PTR_DEMANGLE(var) PTR_MANGLE (var)
-# endif
-#endif
-
-#endif /* linux/powerpc/powerpc32/sysdep.h */