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-rw-r--r--libc/sysdeps/linux/powerpc/Makefile.arch5
-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
-rw-r--r--libc/sysdeps/linux/powerpc/clone.S75
-rw-r--r--libc/sysdeps/linux/powerpc/powerpc32/sysdep.h151
-rw-r--r--libc/sysdeps/linux/powerpc/powerpc64/sysdep.h264
-rw-r--r--libc/sysdeps/linux/powerpc/pread_write.c4
-rw-r--r--libc/sysdeps/linux/powerpc/sysdep.h196
-rw-r--r--libc/sysdeps/linux/powerpc/vfork.S1
11 files changed, 721 insertions, 336 deletions
diff --git a/libc/sysdeps/linux/powerpc/Makefile.arch b/libc/sysdeps/linux/powerpc/Makefile.arch
index 8c7fc2de6..cdb35ba43 100644
--- a/libc/sysdeps/linux/powerpc/Makefile.arch
+++ b/libc/sysdeps/linux/powerpc/Makefile.arch
@@ -13,7 +13,10 @@ endif
SSRC := \
__longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S brk.S \
- clone.S __uClibc_syscall.S syscall.S vfork.S
+ __uClibc_syscall.S syscall.S
+ifneq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+SSRC += clone.S vfork.S
+endif
ifeq ($(CONFIG_E500),y)
ARCH_HEADERS := fenv.h
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 */
diff --git a/libc/sysdeps/linux/powerpc/clone.S b/libc/sysdeps/linux/powerpc/clone.S
index 15d03f679..307053fe5 100644
--- a/libc/sysdeps/linux/powerpc/clone.S
+++ b/libc/sysdeps/linux/powerpc/clone.S
@@ -18,24 +18,27 @@
02111-1307 USA. */
#include <features.h>
-#include "ppc_asm.h"
#define _ERRNO_H 1
#include <bits/errno.h>
-#include <sys/syscall.h>
+#include <sysdep.h>
+
+#define CLONE_VM 0x00000100
+#define CLONE_THREAD 0x00010000
/* This is the only really unusual system call in PPC linux, but not
because of any weirdness in the system call itself; because of
all the freaky stuff we have to do to make the call useful. */
/* int [r3] clone(int (*fn)(void *arg) [r3], void *child_stack [r4],
- int flags [r5], void *arg [r6]); */
+ int flags [r5], void *arg [r6], void *parent_tid [r7],
+ void *tls [r8], void *child_tid [r9]); */
#ifdef __NR_clone
- .globl clone
- .type clone,@function
+ .globl __clone
+ .type __clone,@function
.align 2
-clone:
+__clone:
/* Check for child_stack == NULL || fn == NULL. */
cmpwi cr0,r4,0
cmpwi cr1,r3,0
@@ -44,22 +47,44 @@ clone:
/* Set up stack frame for parent. */
stwu r1,-32(r1)
+ cfi_adjust_cfa_offset (32)
+#ifdef RESET_PID
+ stmw r28,16(r1)
+#else
+# ifdef __ASSUME_FIXED_CLONE_SYSCALL
stmw r29,16(r1)
-
+# else
+ stmw r30,16(r1)
+# endif
+#endif
+
/* Set up stack frame for child. */
clrrwi r4,r4,4
li r0,0
stwu r0,-16(r4)
/* Save fn, args, stack across syscall. */
- mr r29,r3 /* Function in r29. */
- mr r30,r4 /* Stack pointer in r30. */
+ mr r30,r3 /* Function in r30. */
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
+ mr r29,r4 /* Stack pointer in r29. */
+#endif
+#ifdef RESET_PID
+ mr r28,r5
+#endif
mr r31,r6 /* Argument in r31. */
/* 'flags' argument is first parameter to clone syscall. (The other
argument is the stack pointer, already in r4.) */
mr r3,r5
+ /* Move the parent_tid, child_tid and tls arguments. */
+ mr r5,r7
+ mr r6,r8
+ mr r7,r9
+
+ /* End FDE now, because in the child the unwind info will be wrong. */
+ cfi_endproc
+
/* Do the call. */
li 0, __NR_clone
sc
@@ -69,13 +94,27 @@ clone:
crandc cr1*4+eq,cr1*4+eq,cr0*4+so
bne- cr1,.Lparent /* The '-' is to minimise the race. */
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
/* On at least mklinux DR3a5, clone() doesn't actually change
the stack pointer. I'm pretty sure this is a bug, because
it adds a race condition if a signal is sent to a thread
just after it is created (in the previous three instructions). */
- mr r1,r30
+ mr r1,r29
+#endif
+
+#ifdef RESET_PID
+ andis. r0,r28,CLONE_THREAD>>16
+ bne+ r0,.Loldpid
+ andi. r0,r28,CLONE_VM
+ li r3,-1
+ bne- r0,.Lnomoregetpid
+.Lnomoregetpid:
+ stw r3,TID(r2)
+ stw r3,PID(r2)
+.Loldpid:
+#endif
/* Call procedure. */
- mtctr r29
+ mtctr r30
mr r3,r31
bctrl
/* Call _exit with result from procedure. */
@@ -83,16 +122,24 @@ clone:
.Lparent:
/* Parent. Restore registers & return. */
+#ifdef RESET_PID
+ lmw r28,16(r1)
+#else
+# ifndef __ASSUME_FIXED_CLONE_SYSCALL
lmw r29,16(r1)
+# else
+ lmw r30,16(r1)
+# endif
+#endif
addi r1,r1,32
bnslr+
-
b __syscall_error
.Lbadargs:
li r3,EINVAL
-
b __syscall_error
- .size clone,.-clone
+ cfi_startproc
+ .size __clone,.-__clone
+weak_alias(__clone, clone)
#endif
diff --git a/libc/sysdeps/linux/powerpc/powerpc32/sysdep.h b/libc/sysdeps/linux/powerpc/powerpc32/sysdep.h
new file mode 100644
index 000000000..3f6fefdcb
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/powerpc32/sysdep.h
@@ -0,0 +1,151 @@
+/* Assembly macros for 32-bit PowerPC.
+ Copyright (C) 1999, 2001, 2002, 2003, 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., 51 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#ifdef __ASSEMBLER__
+
+#ifdef __ELF__
+
+/* If compiled for profiling, call `_mcount' at the start of each
+ function. */
+#ifdef PROF
+/* The mcount code relies on a the return address being on the stack
+ to locate our caller and so it can restore it; so store one just
+ for its benefit. */
+# define CALL_MCOUNT \
+ mflr r0; \
+ stw r0,4(r1); \
+ cfi_offset (lr, 4); \
+ bl JUMPTARGET(_mcount);
+#else /* PROF */
+# define CALL_MCOUNT /* Do nothing. */
+#endif /* PROF */
+
+#define ENTRY(name) \
+ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
+ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .align ALIGNARG(2); \
+ C_LABEL(name) \
+ cfi_startproc; \
+ CALL_MCOUNT
+
+#define EALIGN_W_0 /* No words to insert. */
+#define EALIGN_W_1 nop
+#define EALIGN_W_2 nop;nop
+#define EALIGN_W_3 nop;nop;nop
+#define EALIGN_W_4 EALIGN_W_3;nop
+#define EALIGN_W_5 EALIGN_W_4;nop
+#define EALIGN_W_6 EALIGN_W_5;nop
+#define EALIGN_W_7 EALIGN_W_6;nop
+
+/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
+ past a 2^align boundary. */
+#ifdef PROF
+# define EALIGN(name, alignt, words) \
+ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
+ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .align ALIGNARG(2); \
+ C_LABEL(name) \
+ cfi_startproc; \
+ CALL_MCOUNT \
+ b 0f; \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ 0:
+#else /* PROF */
+# define EALIGN(name, alignt, words) \
+ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
+ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ C_LABEL(name) \
+ cfi_startproc;
+#endif
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(name)
+
+#define DO_CALL(syscall) \
+ li 0,syscall; \
+ sc
+
+#undef JUMPTARGET
+#ifdef PIC
+# define JUMPTARGET(name) name##@plt
+#else
+# define JUMPTARGET(name) name
+#endif
+
+#if defined SHARED && defined DO_VERSIONING && defined PIC \
+ && !defined NO_HIDDEN
+# undef HIDDEN_JUMPTARGET
+# define HIDDEN_JUMPTARGET(name) __GI_##name##@local
+#endif
+
+#define PSEUDO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET \
+ bnslr+; \
+ b __syscall_error@local
+#define ret PSEUDO_RET
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) \
+ END (name)
+
+#define PSEUDO_NOERRNO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_NOERRNO \
+ blr
+#define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+#define PSEUDO_ERRVAL(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_ERRVAL \
+ blr
+#define ret_ERRVAL PSEUDO_RET_ERRVAL
+
+#undef PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name) \
+ END (name)
+
+/* Local labels stripped out by the linker. */
+#undef L
+#define L(x) .L##x
+
+/* Label in text section. */
+#define C_TEXT(name) name
+
+#endif /* __ELF__ */
+
+#endif /* __ASSEMBLER__ */
diff --git a/libc/sysdeps/linux/powerpc/powerpc64/sysdep.h b/libc/sysdeps/linux/powerpc/powerpc64/sysdep.h
new file mode 100644
index 000000000..467288576
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/powerpc64/sysdep.h
@@ -0,0 +1,264 @@
+/* Assembly macros for 64-bit PowerPC.
+ Copyright (C) 2002, 2003, 2004, 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., 51 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#ifdef __ELF__
+
+#ifdef __ASSEMBLER__
+
+/* Support macros for CALL_MCOUNT. */
+ .macro SAVE_ARG NARG
+ .if \NARG
+ SAVE_ARG \NARG-1
+ std 2+\NARG,-72+8*(\NARG)(1)
+ .endif
+ .endm
+
+ .macro REST_ARG NARG
+ .if \NARG
+ REST_ARG \NARG-1
+ ld 2+\NARG,40+8*(\NARG)(1)
+ .endif
+ .endm
+
+/* If compiled for profiling, call `_mcount' at the start of each function.
+ see ppc-mcount.S for more details. */
+ .macro CALL_MCOUNT NARG
+#ifdef PROF
+ mflr r0
+ SAVE_ARG \NARG
+ std r0,16(r1)
+ stdu r1,-112(r1)
+ bl JUMPTARGET (_mcount)
+ ld r0,128(r1)
+ REST_ARG \NARG
+ addi r1,r1,112
+ mtlr r0
+#endif
+ .endm
+
+#ifdef USE_PPC64_OVERLAPPING_OPD
+# define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase
+#else
+# define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase, 0
+#endif
+
+#define ENTRY_1(name) \
+ .section ".text"; \
+ .type BODY_LABEL(name),@function; \
+ .globl name; \
+ .section ".opd","aw"; \
+ .align 3; \
+name##: OPD_ENT (name); \
+ .previous;
+
+#ifdef HAVE_ASM_GLOBAL_DOT_NAME
+# define DOT_LABEL(X) .##X
+# define BODY_LABEL(X) .##X
+# define ENTRY_2(name) \
+ .globl BODY_LABEL(name); \
+ ENTRY_1(name) \
+ .size name, 24;
+# define END_2(name) \
+ .size BODY_LABEL(name),.-BODY_LABEL(name);
+#else
+# define DOT_LABEL(X) X
+# define BODY_LABEL(X) .LY##X
+# define ENTRY_2(name) \
+ .type name,@function; \
+ ENTRY_1(name)
+# define END_2(name) \
+ .size name,.-BODY_LABEL(name); \
+ .size BODY_LABEL(name),.-BODY_LABEL(name);
+#endif
+
+#define ENTRY(name) \
+ ENTRY_2(name) \
+ .align ALIGNARG(2); \
+BODY_LABEL(name): \
+ cfi_startproc;
+
+#define EALIGN_W_0 /* No words to insert. */
+#define EALIGN_W_1 nop
+#define EALIGN_W_2 nop;nop
+#define EALIGN_W_3 nop;nop;nop
+#define EALIGN_W_4 EALIGN_W_3;nop
+#define EALIGN_W_5 EALIGN_W_4;nop
+#define EALIGN_W_6 EALIGN_W_5;nop
+#define EALIGN_W_7 EALIGN_W_6;nop
+
+/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
+ past a 2^alignt boundary. */
+#define EALIGN(name, alignt, words) \
+ ENTRY_2(name) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+BODY_LABEL(name): \
+ cfi_startproc;
+
+/* Local labels stripped out by the linker. */
+#undef L
+#define L(x) .L##x
+
+#define tostring(s) #s
+#define stringify(s) tostring(s)
+#define XGLUE(a,b) a##b
+#define GLUE(a,b) XGLUE(a,b)
+#define LT_LABEL(name) GLUE(.LT,name)
+#define LT_LABELSUFFIX(name,suffix) GLUE(GLUE(.LT,name),suffix)
+
+/* Support Traceback tables */
+#define TB_ASM 0x000c000000000000
+#define TB_GLOBALLINK 0x0000800000000000
+#define TB_IS_EPROL 0x0000400000000000
+#define TB_HAS_TBOFF 0x0000200000000000
+#define TB_INT_PROC 0x0000100000000000
+#define TB_HAS_CTL 0x0000080000000000
+#define TB_TOCLESS 0x0000040000000000
+#define TB_FP_PRESENT 0x0000020000000000
+#define TB_LOG_ABORT 0x0000010000000000
+#define TB_INT_HANDL 0x0000008000000000
+#define TB_NAME_PRESENT 0x0000004000000000
+#define TB_USES_ALLOCA 0x0000002000000000
+#define TB_SAVES_CR 0x0000000200000000
+#define TB_SAVES_LR 0x0000000100000000
+#define TB_STORES_BC 0x0000000080000000
+#define TB_FIXUP 0x0000000040000000
+#define TB_FP_SAVED(fprs) (((fprs) & 0x3f) << 24)
+#define TB_GPR_SAVED(gprs) (((fprs) & 0x3f) << 16)
+#define TB_FIXEDPARMS(parms) (((parms) & 0xff) << 8)
+#define TB_FLOATPARMS(parms) (((parms) & 0x7f) << 1)
+#define TB_PARMSONSTK 0x0000000000000001
+
+#define PPC_HIGHER(v) (((v) >> 32) & 0xffff)
+#define TB_DEFAULT TB_ASM | TB_HAS_TBOFF | TB_NAME_PRESENT
+
+#define TRACEBACK(name) \
+LT_LABEL(name): ; \
+ .long 0 ; \
+ .quad TB_DEFAULT ; \
+ .long LT_LABEL(name)-BODY_LABEL(name) ; \
+ .short LT_LABELSUFFIX(name,_name_end)-LT_LABELSUFFIX(name,_name_start) ; \
+LT_LABELSUFFIX(name,_name_start): ;\
+ .ascii stringify(name) ; \
+LT_LABELSUFFIX(name,_name_end): ; \
+ .align 2 ;
+
+#define TRACEBACK_MASK(name,mask) \
+LT_LABEL(name): ; \
+ .long 0 ; \
+ .quad TB_DEFAULT | mask ; \
+ .long LT_LABEL(name)-BODY_LABEL(name) ; \
+ .short LT_LABELSUFFIX(name,_name_end)-LT_LABELSUFFIX(name,_name_start) ; \
+LT_LABELSUFFIX(name,_name_start): ;\
+ .ascii stringify(name) ; \
+LT_LABELSUFFIX(name,_name_end): ; \
+ .align 2 ;
+
+/* END generates Traceback tables */
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(name) \
+ END_2(name)
+
+/* This form supports more informative traceback tables */
+#define END_GEN_TB(name,mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(name,mask) \
+ END_2(name)
+
+#define DO_CALL(syscall) \
+ li 0,syscall; \
+ sc
+
+/* ppc64 is always PIC */
+#undef JUMPTARGET
+#define JUMPTARGET(name) DOT_LABEL(name)
+
+#define PSEUDO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET \
+ bnslr+; \
+ b JUMPTARGET(__syscall_error)
+
+#define ret PSEUDO_RET
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) \
+ END (name)
+
+#define PSEUDO_NOERRNO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_NOERRNO \
+ blr
+
+#define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+#define PSEUDO_ERRVAL(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_ERRVAL \
+ blr
+
+#define ret_ERRVAL PSEUDO_RET_ERRVAL
+
+#undef PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name) \
+ END (name)
+
+#else /* !__ASSEMBLER__ */
+
+#ifdef USE_PPC64_OVERLAPPING_OPD
+# define OPD_ENT(name) ".quad " BODY_PREFIX #name ", .TOC.@tocbase;"
+#else
+# define OPD_ENT(name) ".quad " BODY_PREFIX #name ", .TOC.@tocbase, 0;"
+#endif
+
+#ifdef HAVE_ASM_GLOBAL_DOT_NAME
+# define DOT_PREFIX "."
+# define BODY_PREFIX "."
+# define ENTRY_2(name) \
+ ".globl " BODY_PREFIX #name ";\n" \
+ ".size " #name ", 24;"
+# define END_2(name) \
+ ".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
+#else
+# define DOT_PREFIX ""
+# define BODY_PREFIX ".LY"
+# define ENTRY_2(name) ".type " #name ",@function;"
+# define END_2(name) \
+ ".size " #name ",.-" BODY_PREFIX #name ";\n" \
+ ".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
+#endif
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* __ELF__ */
diff --git a/libc/sysdeps/linux/powerpc/pread_write.c b/libc/sysdeps/linux/powerpc/pread_write.c
index 83628512a..7f988d301 100644
--- a/libc/sysdeps/linux/powerpc/pread_write.c
+++ b/libc/sysdeps/linux/powerpc/pread_write.c
@@ -146,6 +146,7 @@ static ssize_t __fake_pread_write64(int fd, void *buf,
#endif /* ! defined __NR_pread || ! defined __NR_pwrite */
#ifndef __NR_pread
+ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset);
ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
{
return(__fake_pread_write(fd, buf, count, offset, 0));
@@ -153,6 +154,7 @@ ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
weak_alias(__libc_pread,pread)
# ifdef __UCLIBC_HAS_LFS__
+ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset);
ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
{
return(__fake_pread_write64(fd, buf, count, offset, 0));
@@ -163,6 +165,7 @@ weak_alias(__libc_pread64,pread64)
#ifndef __NR_pwrite
+ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset);
ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
{
return(__fake_pread_write(fd, (void*)buf, count, offset, 1));
@@ -170,6 +173,7 @@ ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
weak_alias(__libc_pwrite,pwrite)
# ifdef __UCLIBC_HAS_LFS__
+ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset);
ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
{
return(__fake_pread_write64(fd, (void*)buf, count, offset, 1));
diff --git a/libc/sysdeps/linux/powerpc/sysdep.h b/libc/sysdeps/linux/powerpc/sysdep.h
new file mode 100644
index 000000000..14b86ac49
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/sysdep.h
@@ -0,0 +1,196 @@
+/* Copyright (C) 1999, 2001, 2002, 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. */
+
+#include <common/sysdep.h>
+
+/*
+ * Powerpc Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP).
+ * This entry is copied to _dl_hwcap or rtld_global._dl_hwcap during startup.
+ * The following must match the kernels linux/asm/cputable.h.
+ */
+#define PPC_FEATURE_32 0x80000000 /* 32-bit mode. */
+#define PPC_FEATURE_64 0x40000000 /* 64-bit mode. */
+#define PPC_FEATURE_601_INSTR 0x20000000 /* 601 chip, Old POWER ISA. */
+#define PPC_FEATURE_HAS_ALTIVEC 0x10000000 /* SIMD/Vector Unit. */
+#define PPC_FEATURE_HAS_FPU 0x08000000 /* Floating Point Unit. */
+#define PPC_FEATURE_HAS_MMU 0x04000000 /* Memory Management Unit. */
+#define PPC_FEATURE_HAS_4xxMAC 0x02000000 /* 4xx Multiply Accumulator. */
+#define PPC_FEATURE_UNIFIED_CACHE 0x01000000 /* Unified I/D cache. */
+#define PPC_FEATURE_HAS_SPE 0x00800000 /* Signal Processing ext. */
+#define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 /* SPE Float. */
+#define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 /* SPE Double. */
+#define PPC_FEATURE_NO_TB 0x00100000 /* 601/403gx have no timebase */
+#define PPC_FEATURE_POWER4 0x00080000 /* POWER4 ISA 2.00 */
+#define PPC_FEATURE_POWER5 0x00040000 /* POWER5 ISA 2.02 */
+#define PPC_FEATURE_POWER5_PLUS 0x00020000 /* POWER5+ ISA 2.03 */
+#define PPC_FEATURE_CELL_BE 0x00010000 /* CELL Broadband Engine */
+#define PPC_FEATURE_BOOKE 0x00008000
+#define PPC_FEATURE_SMT 0x00004000 /* Simultaneous Multi-Threading */
+#define PPC_FEATURE_ICACHE_SNOOP 0x00002000
+#define PPC_FEATURE_ARCH_2_05 0x00001000 /* ISA 2.05 */
+#define PPC_FEATURE_PA6T 0x00000800 /* PA Semi 6T Core */
+#define PPC_FEATURE_HAS_DFP 0x00000400 /* Decimal FP Unit */
+#define PPC_FEATURE_POWER6_EXT 0x00000200 /* P6 + mffgpr/mftgpr */
+#define PPC_FEATURE_ARCH_2_06 0x00000100 /* ISA 2.06 */
+#define PPC_FEATURE_HAS_VSX 0x00000080 /* P7 Vector Extension. */
+#define PPC_FEATURE_970 (PPC_FEATURE_POWER4 + PPC_FEATURE_HAS_ALTIVEC)
+
+#ifdef __ASSEMBLER__
+
+/* Symbolic names for the registers. The only portable way to write asm
+ code is to use number but this produces really unreadable code.
+ Therefore these symbolic names. */
+
+/* Integer registers. */
+#define r0 0
+#define r1 1
+#define r2 2
+#define r3 3
+#define r4 4
+#define r5 5
+#define r6 6
+#define r7 7
+#define r8 8
+#define r9 9
+#define r10 10
+#define r11 11
+#define r12 12
+#define r13 13
+#define r14 14
+#define r15 15
+#define r16 16
+#define r17 17
+#define r18 18
+#define r19 19
+#define r20 20
+#define r21 21
+#define r22 22
+#define r23 23
+#define r24 24
+#define r25 25
+#define r26 26
+#define r27 27
+#define r28 28
+#define r29 29
+#define r30 30
+#define r31 31
+
+/* Floating-point registers. */
+#define fp0 0
+#define fp1 1
+#define fp2 2
+#define fp3 3
+#define fp4 4
+#define fp5 5
+#define fp6 6
+#define fp7 7
+#define fp8 8
+#define fp9 9
+#define fp10 10
+#define fp11 11
+#define fp12 12
+#define fp13 13
+#define fp14 14
+#define fp15 15
+#define fp16 16
+#define fp17 17
+#define fp18 18
+#define fp19 19
+#define fp20 20
+#define fp21 21
+#define fp22 22
+#define fp23 23
+#define fp24 24
+#define fp25 25
+#define fp26 26
+#define fp27 27
+#define fp28 28
+#define fp29 29
+#define fp30 30
+#define fp31 31
+
+/* Condition code registers. */
+#define cr0 0
+#define cr1 1
+#define cr2 2
+#define cr3 3
+#define cr4 4
+#define cr5 5
+#define cr6 6
+#define cr7 7
+
+/* Vector registers. */
+#define v0 0
+#define v1 1
+#define v2 2
+#define v3 3
+#define v4 4
+#define v5 5
+#define v6 6
+#define v7 7
+#define v8 8
+#define v9 9
+#define v10 10
+#define v11 11
+#define v12 12
+#define v13 13
+#define v14 14
+#define v15 15
+#define v16 16
+#define v17 17
+#define v18 18
+#define v19 19
+#define v20 20
+#define v21 21
+#define v22 22
+#define v23 23
+#define v24 24
+#define v25 25
+#define v26 26
+#define v27 27
+#define v28 28
+#define v29 29
+#define v30 30
+#define v31 31
+
+#define VRSAVE 256
+
+
+#ifdef __ELF__
+
+/* This seems to always be the case on PPC. */
+#define ALIGNARG(log2) log2
+/* For ELF we need the `.type' directive to make shared libs work right. */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* In ELF C symbols are asm symbols. */
+#undef NO_UNDERSCORES
+#define NO_UNDERSCORES
+
+#endif /* __ELF__ */
+
+# include <sys/syscall.h>
+# if defined(__powerpc64__)
+# include "powerpc64/sysdep.h"
+# else
+# include "powerpc32/sysdep.h"
+# endif
+
+#endif /* __ASSEMBLER__ */
+
diff --git a/libc/sysdeps/linux/powerpc/vfork.S b/libc/sysdeps/linux/powerpc/vfork.S
index 600c980a8..008374260 100644
--- a/libc/sysdeps/linux/powerpc/vfork.S
+++ b/libc/sysdeps/linux/powerpc/vfork.S
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 07:02:33 +0000