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2004-01-10  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/x86_64/__start_context.S: Add cfi directives.
	* sysdeps/unix/x86_64/sysdep.S (__syscall_error): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
	* sysdeps/x86_64/strcspn.S: Likewise.
	* sysdeps/x86_64/strspn.S: Likewise.
This commit is contained in:
Ulrich Drepper 2004-01-10 18:08:28 +00:00
parent 249a3d0c4f
commit 0e328c858a
6 changed files with 24 additions and 5 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2004-01-10 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/x86_64/__start_context.S: Add cfi directives.
* sysdeps/unix/x86_64/sysdep.S (__syscall_error): Likewise.
* sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
* sysdeps/x86_64/strcspn.S: Likewise.
* sysdeps/x86_64/strspn.S: Likewise.
2004-01-08 Jakub Jelinek <jakub@redhat.com> 2004-01-08 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Add cfi_endproc * sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Add cfi_endproc

3
sysdeps/unix/sysv/linux/x86_64/__start_context.S
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@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. /* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002. Contributed by Andreas Jaeger <aj@suse.de>, 2002.
@ -33,6 +33,7 @@ ENTRY(__start_context)
movq %rbx, %rsp movq %rbx, %rsp
popq %rdi /* This is the next context. */ popq %rdi /* This is the next context. */
cfi_adjust_cfa_offset(-8)
testq %rdi, %rdi testq %rdi, %rdi
je 2f /* If it is zero exit. */ je 2f /* If it is zero exit. */

4
sysdeps/unix/sysv/linux/x86_64/vfork.S
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@ -1,4 +1,4 @@
/* Copyright (C) 2001, 2002 Free Software Foundation, Inc. /* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -30,6 +30,7 @@ ENTRY (__vfork)
/* Pop the return PC value into RDI. We need a register that /* Pop the return PC value into RDI. We need a register that
is preserved by the syscall and that we're allowed to destroy. */ is preserved by the syscall and that we're allowed to destroy. */
popq %rdi popq %rdi
cfi_adjust_cfa_offset(-8)
/* Stuff the syscall number in RAX and enter into the kernel. */ /* Stuff the syscall number in RAX and enter into the kernel. */
movl $SYS_ify (vfork), %eax movl $SYS_ify (vfork), %eax
@ -37,6 +38,7 @@ ENTRY (__vfork)
/* Push back the return PC. */ /* Push back the return PC. */
pushq %rdi pushq %rdi
cfi_adjust_cfa_offset(8)
cmpl $-4095, %eax cmpl $-4095, %eax
jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */

6
sysdeps/unix/x86_64/sysdep.S
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@ -1,4 +1,4 @@
/* Copyright (C) 2001, 2002 Free Software Foundation, Inc. /* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -57,10 +57,12 @@ notb:
movl %eax, C_SYMBOL_NAME(errno) movl %eax, C_SYMBOL_NAME(errno)
# else # else
pushq %rax pushq %rax
cfi_adjust_cfa_offset(8)
PUSH_ERRNO_LOCATION_RETURN PUSH_ERRNO_LOCATION_RETURN
call BP_SYM (__errno_location) call BP_SYM (__errno_location)
POP_ERRNO_LOCATION_RETURN POP_ERRNO_LOCATION_RETURN
popq %rcx popq %rcx
cfi_adjust_cfa_offset(-8)
movl %ecx, (%rax) movl %ecx, (%rax)
# endif # endif
#else #else
@ -72,10 +74,12 @@ notb:
movl %eax, (%rcx) movl %eax, (%rcx)
# else # else
pushq %rax pushq %rax
cfi_adjust_cfa_offset(8)
PUSH_ERRNO_LOCATION_RETURN PUSH_ERRNO_LOCATION_RETURN
call C_SYMBOL_NAME (BP_SYM (__errno_location)@PLT) call C_SYMBOL_NAME (BP_SYM (__errno_location)@PLT)
POP_ERRNO_LOCATION_RETURN POP_ERRNO_LOCATION_RETURN
popq %rcx popq %rcx
cfi_adjust_cfa_offset(-8)
movl %ecx, (%rax) movl %ecx, (%rax)
# endif # endif
#endif #endif

4
sysdeps/x86_64/strcspn.S
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@ -1,7 +1,7 @@
/* strcspn (str, ss) -- Return the length of the initial segment of STR /* strcspn (str, ss) -- Return the length of the initial segment of STR
which contains no characters from SS. which contains no characters from SS.
For AMD x86-64. For AMD x86-64.
Copyright (C) 1994-1997, 2000, 2002, 2003 Free Software Foundation, Inc. Copyright (C) 1994-1997,2000,2002,2003,2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>.
Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>. Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>.
@ -40,6 +40,7 @@ ENTRY (strcspn)
table. */ table. */
movq %rdi, %r8 /* Save value. */ movq %rdi, %r8 /* Save value. */
subq $256, %rsp /* Make space for 256 bytes. */ subq $256, %rsp /* Make space for 256 bytes. */
cfi_adjust_cfa_offset(-256)
movq $32, %rcx /* 32*8 bytes = 256 bytes. */ movq $32, %rcx /* 32*8 bytes = 256 bytes. */
movq %rsp, %rdi movq %rsp, %rdi
xorq %rax, %rax /* We store 0s. */ xorq %rax, %rax /* We store 0s. */
@ -110,6 +111,7 @@ L(6): incq %rax
L(5): incq %rax L(5): incq %rax
L(4): addq $256, %rsp /* remove skipset */ L(4): addq $256, %rsp /* remove skipset */
cfi_adjust_cfa_offset(-256)
#if STRPBRK_P #if STRPBRK_P
xorq %rdx,%rdx xorq %rdx,%rdx
orb %cl, %cl /* was last character NUL? */ orb %cl, %cl /* was last character NUL? */

4
sysdeps/x86_64/strspn.S
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@ -1,7 +1,7 @@
/* strspn (str, ss) -- Return the length of the initial segment of STR /* strspn (str, ss) -- Return the length of the initial segment of STR
which contains only characters from SS. which contains only characters from SS.
For AMD x86-64. For AMD x86-64.
Copyright (C) 1994-1997, 2000, 2002, 2003 Free Software Foundation, Inc. Copyright (C) 1994-1997,2000,2002,2003,2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>.
Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>. Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>.
@ -36,6 +36,7 @@ ENTRY (strspn)
table. */ table. */
movq %rdi, %r8 /* Save value. */ movq %rdi, %r8 /* Save value. */
subq $256, %rsp /* Make space for 256 bytes. */ subq $256, %rsp /* Make space for 256 bytes. */
cfi_adjust_cfa_offset(256)
movq $32, %rcx /* 32*8 bytes = 256 bytes. */ movq $32, %rcx /* 32*8 bytes = 256 bytes. */
movq %rsp, %rdi movq %rsp, %rdi
xorq %rax, %rax /* We store 0s. */ xorq %rax, %rax /* We store 0s. */
@ -106,6 +107,7 @@ L(6): incq %rax
L(5): incq %rax L(5): incq %rax
L(4): addq $256, %rsp /* remove stopset */ L(4): addq $256, %rsp /* remove stopset */
cfi_adjust_cfa_offset(-256)
subq %rdx, %rax /* we have to return the number of valid subq %rdx, %rax /* we have to return the number of valid
characters, so compute distance to first characters, so compute distance to first
non-valid character */ non-valid character */