+2009-08-21 Andreas Schwab <schwab@redhat.com>
+
+ * sysdeps/powerpc/powerpc32/____longjmp_chk.S: Removed.
+ * sysdeps/powerpc/powerpc64/____longjmp_chk.S: Removed.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/____longjmp_chk.S: New file.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/____longjmp_chk.S: New file.
+ * sysdeps/powerpc/powerpc32/__longjmp-common.S: Move CHECK_SP earlier.
+ * sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: Likewise.
+
2009-08-20 Roland McGrath <roland@redhat.com>
* sysdeps/generic/elf/backtracesyms.c (__backtrace_symbols):
-/* Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2007, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
iattr = ((const struct pthread_rwlockattr *) attr) ?: &default_attr;
- rwlock->__data.__lock = 0;
- rwlock->__data.__nr_readers = 0;
- rwlock->__data.__readers_wakeup = 0;
- rwlock->__data.__writer_wakeup = 0;
- rwlock->__data.__nr_readers_queued = 0;
- rwlock->__data.__nr_writers_queued = 0;
- rwlock->__data.__writer = 0;
+ memset (rwlock, '\0', sizeof (*rwlock));
rwlock->__data.__flags
= iattr->lockkind == PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP;
header.private_futex));
#endif
- rwlock->__data.__pad1 = 0;
- rwlock->__data.__pad2 = 0;
-
return 0;
}
strong_alias (__pthread_rwlock_init, pthread_rwlock_init)
.align 16
__pthread_rwlock_rdlock:
cfi_startproc
+ movq $NRW_RC, %rax
+ LOCK
+ xaddq %rax, NRW_WORD(%rdi)
+ js .Lundo
+
+.Lagain1:
+ movq $(NRW_WL|NRW_WP), %rcx
+ movq $(NRW_WL|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setnz %cl
+ testq %rax, %rdx
+ setnz %dl
+ orb %cl, %dl
+ jnz .Lwait
+
+ xorl %eax, %eax
+ ret
+
+.Lwait: movq $NRW_WL, %rcx
+ testq %rcx, %rax
+ jz 4f
+
+ movl %fs:TID, %ecx
+ cmpl %ecx, WRITER(%rdi)
+ je .Ldeadlk
+
+4: xorq %r8, %r8
+ movq $NRW_RC, %rdx
+ addq %rdx, %rax
+ movq $(NRW_WL|NRW_AR), %rcx
+ movq $(NRW_WP|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setz %cl
+ testq %rax, %rdx
+ setnz %dl
+ testb %dl, %cl
+ jz 1f
+
+ movq $NRW_RW-NRW_RC, %rdx
+ addq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain1
+
+ movq $NRW_RC_MASK, %rax
+ testq %rdx, %rax
+ movl $1, %r8d
+ jz .Lwake_waiter
+
+1: xorq %r10, %r10
+ movl $NRW_R_WAKEUP, %r9d
+ movl $(FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG), %esi
+ xorl PSHARED(%rdi), %esi
+ leaq NRW_WORD+4(%rdi), %rdi
+2: shldq $32, %rax, %rdx
+ movl $__NR_futex, %eax
+ syscall
+ movq -4(%rdi), %rax
+
+5: movq $(NRW_WL|NRW_WP), %rcx
+ movq $(NRW_WL|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setnz %cl
+ testq %rax, %rdx
+ setnz %dl
+ orb %cl, %dl
+ jnz 2b
+
+ testl %r8d, %r8d
+ jz 3f
+
+ movq $NRW_RC-NRW_RW, %rcx
+ addq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz 5b
+
+3: xorl %eax, %eax
+ ret
+
+.Lwake_waiter:
+ movq %rdx, %r10
+ movl $__NR_futex, %eax
+ movl $(FUTEX_WAKE_BITSET|FUTEX_PRIVATE_FLAG), %esi
+ xorl PSHARED(%rdi), %esi
+ leaq NRW_WORD(%rdi), %rdi
+ movl $1, %edx
+ movl $NRW_W_WAKEUP, %r9d
+ syscall
+ leaq -NRW_WORD(%rdi), %rdi
+ movq %r10, %rdx
+ jmp 1b
+
+.Lundo: movq $-NRW_RC, %rcx
+ movq %rax, %rdx
+ subq %rcx, %rax
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jz .Lret
+
+ movq $NRW_RC_OVFL, %r8
+.Lagain2:
+ testq %r8, %rax
+ jz .Lagain1
+ leaq (%rax,%rcx), %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain2
+
+.Lret: movl $EAGAIN, %eax
+ ret
+
+.Ldeadlk:
+ movq $NRW_RC, %rdx
+ LOCK
+ subq %rdx, NRW_WORD(%rdi)
+
+ movl $EDEADLK, %eax
+ ret
+
+#if 0
xorq %r10, %r10
/* Get the lock. */
subq $MUTEX, %rdi
#endif
jmp 13b
+#endif
cfi_endproc
.size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock
.align 16
pthread_rwlock_timedrdlock:
cfi_startproc
+ movq %rsi, %r10
+ movq $NRW_RC, %rax
+ LOCK
+ xaddq %rax, NRW_WORD(%rdi)
+ js .Lundo
+
+.Lagain1:
+ movq $(NRW_WL|NRW_WP), %rcx
+ movq $(NRW_WL|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setnz %cl
+ testq %rax, %rdx
+ setnz %dl
+ orb %cl, %dl
+ jnz .Lwait
+
+ xorl %eax, %eax
+ ret
+
+.Lwait: movq $NRW_WL, %rcx
+ testq %rcx, %rax
+ jz 4f
+
+ movl %fs:TID, %ecx
+ cmpl %ecx, WRITER(%rdi)
+ je .Ldeadlk
+
+4: xorq %r8, %r8
+ movq $NRW_RC, %rdx
+ addq %rdx, %rax
+ movq $(NRW_WL|NRW_AR), %rcx
+ movq $(NRW_WP|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setz %cl
+ testq %rax, %rdx
+ setnz %dl
+ testb %dl, %cl
+ jz 1f
+
+ movq $NRW_RW-NRW_RC, %rdx
+ addq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain1
+
+ movq $NRW_RC_MASK, %rax
+ testq %rdx, %rax
+ movq $NRW_RW-NRW_RC, %r8
+ jz .Lwake_waiter
+
+1: movl $NRW_R_WAKEUP, %r9d
+ leaq NRW_WORD+4(%rdi), %rdi
+2: movl $(FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG|FUTEX_CLOCK_REALTIME), %esi
+ xorl PSHARED-(NRW_WORD+4)(%rdi), %esi
+ shldq $32, %rax, %rdx
+ movl $__NR_futex, %eax
+ syscall
+ movl %eax, %esi
+ movq -4(%rdi), %rax
+
+6: movq $(NRW_WL|NRW_WP), %rcx
+ movq $(NRW_WL|NRW_WW_MASK), %rdx
+ testq %rax, %rcx
+ setnz %cl
+ testq %rax, %rdx
+ setnz %dl
+ orb %cl, %dl
+ jz 5f
+
+ cmpl $-EWOULDBLOCK, %esi
+ je 2b
+
+ movq $-NRW_RC, %rdx
+ subq %r8, %rdx
+ addq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz 6b
+
+ negl %esi
+ movl %esi, %eax
+ ret
+
+5: testl %r8d, %r8d
+ jz 3f
+
+ movq $NRW_RC-NRW_RW, %rcx
+ addq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz 6b
+
+3: xorl %eax, %eax
+ ret
+
+.Lwake_waiter:
+ movq %rdx, %r10
+ movl $__NR_futex, %eax
+ movl $(FUTEX_WAKE_BITSET|FUTEX_PRIVATE_FLAG), %esi
+ xorl PSHARED(%rdi), %esi
+ leaq NRW_WORD(%rdi), %rdi
+ movl $1, %edx
+ movl $NRW_W_WAKEUP, %r9d
+ syscall
+ leaq -NRW_WORD(%rdi), %rdi
+ movq %r10, %rdx
+ jmp 1b
+
+.Lundo: movq $-NRW_RC, %rcx
+ movq %rax, %rdx
+ subq %rcx, %rax
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jz .Lret
+
+ movq $NRW_RC_OVFL, %r8
+.Lagain2:
+ testq %r8, %rax
+ jz .Lagain1
+ leaq (%rax,%rcx), %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain2
+
+.Lret: movl $EAGAIN, %eax
+ ret
+
+.Ldeadlk:
+ movq $NRW_RC, %rdx
+ LOCK
+ subq %rdx, NRW_WORD(%rdi)
+
+ movl $EDEADLK, %eax
+ ret
+
+
+#if 0
pushq %r12
cfi_adjust_cfa_offset(8)
cfi_rel_offset(%r12, 0)
19: movl $EINVAL, %edx
jmp 9b
+#endif
cfi_endproc
.size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock
.align 16
pthread_rwlock_timedwrlock:
cfi_startproc
+ movq %rsi, %r10
+ movq NRW_WORD(%rdi), %rax
+.Lagain:
+ movq $(NRW_WW_MASK|NRW_WL|NRW_RC_MASK), %rdx
+ testq %rdx, %rax
+ jnz .Lwait
+
+ // XXX Probably make AR a don't-care for !WP. Unconditionally set it
+ movq $(NRW_AR|NRW_WL), %rdx
+ movq $NRW_WL, %rcx
+ testq $NRW_WP, %rax
+ cmovz %rcx, %rdx
+ orq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain
+
+ movl %fs:TID, %eax
+ movl %eax, WRITER(%rdi)
+
+ xorl %eax, %eax
+ ret
+
+.Lwait: movq $NRW_WL, %rcx
+ testq %rcx, %rax
+ jz 1f
+
+ movl %fs:TID, %eax
+ cmpl %eax, WRITER(%rdi)
+ je .Ldeadlk
+
+1: leaq NRW_WORD+4(%rdi), %rdi
+
+ movq $NRW_WW, %rdx
+ movq $NRW_WW_MASK, %rcx
+ addq %rax, %rdx
+ testq %rcx, %rdx
+ jz .Lovfl
+
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz .Lagain
+
+ movl $NRW_W_WAKEUP, %r9d
+.Lwait2:
+ movl $(FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG|FUTEX_CLOCK_REALTIME), %esi
+ movl $__NR_futex, %eax
+ xorl PSHARED-(NRW_WORD+4)(%rdi), %esi
+ syscall
+ movl %eax, %esi
+ movq -4(%rdi), %rax
+
+.Lagain2:
+ movq $(NRW_WL|NRW_RC_MASK), %rdx
+ movq $(NRW_WL|NRW_AR), %rcx
+ testq %rdx, %rax
+ movq $NRW_AR, %rsi
+ setz %cl
+ andq %rax, %rcx
+ cmpq %rsi, %rcx
+ sete %cl
+ orb %dl, %cl
+ jnz 2f
+
+ cmpl $-EWOULDBLOCK, %esi
+ jne .Lwait2
+
+ movq $-NRW_WW, %rdx
+ addq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz .Lagain2
+
+ negl %esi
+ movl %esi, %eax
+ ret
+
+2: movq $-NRW_WW, %rdx
+ addq %rax, %rdx
+ xorl %ecx, %ecx
+ testq $NRW_WP, %rax
+ cmovz %rcx, %rsi
+ orq %rsi, %rdx
+
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz .Lagain2
+
+ movl %fs:TID, %eax
+ movl %eax, WRITER(%rdi)
+
+ xorl %eax, %eax
+ ret
+
+.Lovfl: movl $EAGAIN, %eax
+ ret
+
+.Ldeadlk:
+ movl $EDEADLK, %eax
+ ret
+
+
+#if 0
pushq %r12
cfi_adjust_cfa_offset(8)
cfi_rel_offset(%r12, 0)
19: movl $EINVAL, %edx
jmp 9b
+#endif
cfi_endproc
.size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock
.align 16
__pthread_rwlock_unlock:
cfi_startproc
+ movq NRW_WORD(%rdi), %rax
+ movq $NRW_WL, %rdx
+ testq %rdx, %rax
+ jnz .Lunlock_writer
+
+.Lagain:
+ movq $-NRW_RC, %rdx
+ addq %rax, %rdx
+ movq $NRW_RC_MASK, %rcx
+ testq %rcx, %rdx
+ jz .Llast_reader
+
+1: LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain
+
+ xorl %eax, %eax
+ ret
+
+.Llast_reader:
+ movq $NRW_WW_MASK, %rcx
+ testq %rax, %rcx
+ jz 1b
+
+ movq $NRW_AR, %rcx
+ xorl %esi, %esi
+ testq $NRW_WP, %rax
+ cmovz %esi, %ecx
+ orq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain
+
+.Lwake_writer:
+ movl $1, %edx
+ movl $NRW_W_WAKEUP, %r9d
+.Lwake: movl $(FUTEX_WAKE_BITSET|FUTEX_PRIVATE_FLAG), %esi
+ xorl PSHARED(%rdi), %esi
+ leaq NRW_WORD(%rdi), %rdi
+ movl $__NR_futex, %eax
+ syscall
+
+.Lout: xorl %eax, %eax
+ ret
+
+.Lunlock_writer:
+ movq %rax, %rdx
+ movq $NRW_WW_MASK, %rcx
+ testq %rcx, %rax
+ jz .Lno_writers
+ movq $NRW_RC_MASK, %rcx
+ testq %rcx, %rax
+ jz 2f
+ testq $NRW_WP, %rax
+ jz .Lwake_readers
+
+2: movq $~NRW_WL, %rcx
+ andq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lunlock_writer
+ jmp .Lwake_writer
+
+.Lno_writers:
+ movq $~(NRW_WL|NRW_AR), %rcx
+ andq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lunlock_writer
+
+ movq $(NRW_RW_MASK|NRW_RC_MASK), %rcx
+ testq %rcx, %rax
+ jz .Lout
+
+ movl $0x7fffffff, %edx
+ movl $NRW_R_WAKEUP, %r9d
+ jmp .Lwake
+
+.Lwake_readers:
+ movq $~NRW_WL, %rcx
+ andq %rcx, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lunlock_writer
+
+ movl $0x7fffffff, %edx
+ movl $NRW_R_WAKEUP, %r9d
+ jmp .Lwake
+
+
+#if 0
/* Get the lock. */
movl $1, %esi
xorl %eax, %eax
#endif
callq __lll_unlock_wake
jmp 8b
+#endif
cfi_endproc
.size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock
.align 16
__pthread_rwlock_wrlock:
cfi_startproc
+ movq NRW_WORD(%rdi), %rax
+.Lagain:
+ movq $(NRW_WW_MASK|NRW_WL|NRW_RC_MASK), %rdx
+ testq %rdx, %rax
+ jnz .Lwait
+
+ // XXX Probably make AR a don't-care for !WP. Unconditionally set it
+ movq $(NRW_AR|NRW_WL), %rdx
+ movq $NRW_WL, %rcx
+ testq $NRW_WP, %rax
+ cmovz %rcx, %rdx
+ orq %rax, %rdx
+ LOCK
+ cmpxchgq %rdx, NRW_WORD(%rdi)
+ jnz .Lagain
+
+ movl %fs:TID, %eax
+ movl %eax, WRITER(%rdi)
+
+ xorl %eax, %eax
+ ret
+
+.Lwait: movq $NRW_WL, %rcx
+ testq %rcx, %rax
+ jz 1f
+
+ movl %fs:TID, %eax
+ cmpl %eax, WRITER(%rdi)
+ je .Ldeadlk
+
+1: leaq NRW_WORD+4(%rdi), %rdi
+
+ movq $NRW_WW, %rdx
+ movq $NRW_WW_MASK, %rcx
+ addq %rax, %rdx
+ testq %rcx, %rdx
+ jz .Lovfl
+
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz .Lagain
+
+ xorq %r10, %r10
+ movl $NRW_W_WAKEUP, %r9d
+.Lwait2:
+ movl $(FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG), %esi
+ movl $__NR_futex, %eax
+ xorl PSHARED-(NRW_WORD+4)(%rdi), %esi
+ syscall
+ movq -4(%rdi), %rax
+
+.Lagain2:
+ movq $(NRW_WL|NRW_RC_MASK), %rdx
+ movq $(NRW_WL|NRW_AR), %rcx
+ testq %rdx, %rax
+ movq $NRW_AR, %rsi
+ setz %cl
+ andq %rax, %rcx
+ cmpq %rsi, %rcx
+ sete %cl
+ orb %dl, %cl
+ jz .Lwait2
+
+ movq $-NRW_WW, %rdx
+ addq %rax, %rdx
+ xorl %ecx, %ecx
+ testq $NRW_WP, %rax
+ cmovz %rcx, %rsi
+ orq %rsi, %rdx
+
+ LOCK
+ cmpxchgq %rdx, -4(%rdi)
+ jnz .Lagain2
+
+ movl %fs:TID, %eax
+ movl %eax, WRITER(%rdi)
+
+ xorl %eax, %eax
+ ret
+
+.Lovfl: movl $EAGAIN, %eax
+ ret
+
+.Ldeadlk:
+ movl $EDEADLK, %eax
+ ret
+
+#if 0
xorq %r10, %r10
/* Get the lock. */
subq $MUTEX, %rdi
#endif
jmp 13b
+#endif
cfi_endproc
.size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock
#if defined PTR_DEMANGLE || defined CHECK_SP
lwz r24,(JB_GPR1*4)(r3)
+# ifdef CHECK_SP
+# ifdef PTR_DEMANGLE
+ PTR_DEMANGLE3 (r24, r24, r25)
+# endif
+ CHECK_SP (r24)
+ mr r1,r24
+# endif
#else
lwz r1,(JB_GPR1*4)(r3)
#endif
lwz r19,((JB_GPRS+5)*4)(r3)
lwz r20,((JB_GPRS+6)*4)(r3)
#ifdef PTR_DEMANGLE
-# ifdef CHECK_SP
- PTR_DEMANGLE3 (r24, r24, r25)
-# else
+# ifndef CHECK_SP
PTR_DEMANGLE3 (r1, r24, r25)
# endif
PTR_DEMANGLE2 (r0, r25)
-#endif
-#ifdef CHECK_SP
- CHECK_SP (r24)
- mr r1,r24
#endif
mtlr r0
lwz r21,((JB_GPRS+7)*4)(r3)
#endif
#if defined PTR_DEMANGLE || defined CHECK_SP
lwz r24,(JB_GPR1*4)(r3)
+# ifdef CHECK_SP
+# ifdef PTR_DEMANGLE
+ PTR_DEMANGLE3 (r24, r24, r25)
+# endif
+ CHECK_SP (r24)
+ mr r1,r24
+# endif
#else
lwz r1,(JB_GPR1*4)(r3)
#endif
lwz r20,((JB_GPRS+6)*4)(r3)
lfd fp20,((JB_FPRS+6*2)*4)(r3)
#ifdef PTR_DEMANGLE
-# ifdef CHECK_SP
- PTR_DEMANGLE3 (r24, r24, r25)
-# else
+# ifndef CHECK_SP
PTR_DEMANGLE3 (r1, r24, r25)
# endif
PTR_DEMANGLE2 (r0, r25)
-#endif
-#ifdef CHECK_SP
- CHECK_SP (r24)
- mr r1,r24
#endif
mtlr r0
lwz r21,((JB_GPRS+7)*4)(r3)
#include <sysdep.h>
#include <rtld-global-offsets.h>
- .section .rodata.str1.1,"aMS",@progbits,1
+ .section .rodata.str1.4,"aMS",@progbits,1
+ .align 2
.LC0:
.string "longjmp causes uninitialized stack frame"
.text
#define CHECK_SP(reg) \
cmplw reg, r1; \
bge+ .Lok; \
+ mflr r0; \
+ stwu r1,-32(r1); \
+ cfi_remember_state; \
+ cfi_adjust_cfa_offset (32); \
+ stw r0,36(r1); \
+ cfi_offset (lr, 4); \
+ mr r31,r3; \
+ mr r30,r4; \
+ li r3,0; \
+ addi r4,r1,8; \
+ li r0,__NR_sigaltstack; \
+ sc; \
+ /* Without working sigaltstack we cannot perform the test. */ \
+ bso .Lok2; \
+ lwz r0,12(r1); \
+ andi. r3,r0,1; \
+ beq .Lfail; \
+ lwz r0,16(r1); \
+ lwz r3,8(r1); \
+ add r3,r3,r0; \
+ sub r3,r3,reg; \
+ cmplw r3,r0; \
+ bge+ .Lok2; \
+.Lfail: \
LOAD_ARG; \
bl HIDDEN_JUMPTARGET (__fortify_fail); \
+.Lok2: \
+ mr r3,r31; \
+ mr r4,r30; \
+ cfi_restore_state; \
.Lok:
#include <__longjmp-common.S>
#include <sysdep.h>
#include <rtld-global-offsets.h>
- .section .rodata.str1.1,"aMS",@progbits,1
+ .section .rodata.str1.8,"aMS",@progbits,1
+ .align 3
.LC0:
.string "longjmp causes uninitialized stack frame"
.section .toc,"aw"
#define CHECK_SP(reg) \
cmpld reg, r1; \
bge+ .Lok; \
+ mflr r0; \
+ std r0,16(r1); \
+ mr r31,r3; \
+ mr r30,r4; \
+ stdu r1,-144(r1); \
+ cfi_remember_state; \
+ cfi_adjust_cfa_offset (144); \
+ cfi_offset (lr, 16); \
+ li r3,0; \
+ addi r4,r1,112; \
+ li r0,__NR_sigaltstack; \
+ sc; \
+ /* Without working sigaltstack we cannot perform the test. */ \
+ bso .Lok2; \
+ lwz r0,112+8(r1); \
+ andi. r4,r0,1; \
+ beq .Lfail; \
+ ld r0,112+16(r1); \
+ ld r4,112(r1); \
+ add r4,r4,r0; \
+ sub r3,r3,reg; \
+ cmpld r3,r0; \
+ bge+ .Lok2; \
+.Lfail: \
ld r3,.LC1@toc(2); \
bl HIDDEN_JUMPTARGET (__fortify_fail); \
+ nop; \
+.Lok2: \
+ mr r3,r31; \
+ mr r4,r30; \
+ cfi_restore_state; \
.Lok:
#include <__longjmp-common.S>
projects / thirdparty / glibc.git / commitdiff
