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2003-06-08  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Remove
	hand-written CFI generation code.  Since ENTRY/END also initiated
	CFI frames this caused two CFI sets to be generated.
This commit is contained in:
Ulrich Drepper 2003-06-08 08:16:08 +00:00
parent bcd5f35667
commit 3e36c37d35
2 changed files with 13 additions and 100 deletions
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6
nptl/ChangeLog
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@ -1,3 +1,9 @@
2003-06-08 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Remove
hand-written CFI generation code. Since ENTRY/END also initiated
CFI frames this caused two CFI sets to be generated.
2003-06-07 Ulrich Drepper <drepper@redhat.com>
* cleanup_routine.c: New file.

107
nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
View File

@ -29,7 +29,6 @@
# define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
L(name##START): \
SINGLE_THREAD_P; \
jne L(pseudo_cancel); \
DO_CALL (syscall_name, args); \
@ -55,100 +54,8 @@
RESTSTK_##args \
cmpq $-4095, %rax; \
jae SYSCALL_ERROR_LABEL; \
L(pseudo_end): \
\
/* Create unwinding information for the syscall wrapper. */ \
.section .eh_frame,"a",@progbits; \
L(STARTFRAME): \
/* Length of the CIE. */ \
.long L(ENDCIE)-L(STARTCIE); \
L(STARTCIE): \
/* CIE ID. */ \
.long 0; \
/* Version number. */ \
.byte 1; \
/* NUL-terminated augmentation string. Note "z" means there is an \
augmentation value later on. */ \
.string "zR"; \
/* Code alignment factor. */ \
.uleb128 1; \
/* Data alignment factor. */ \
.sleb128 -8; \
/* Return address register column. */ \
.byte 16; \
/* Augmentation value length. */ \
.uleb128 1; \
/* Encoding: DW_EH_PE_pcrel + DW_EH_PE_sdata4. */ \
.byte 0x1b; \
/* Start of the table initialization. */ \
.byte 0xc; \
.uleb128 7; \
.uleb128 8; \
.byte 0x90; \
.uleb128 1; \
.align 8; \
L(ENDCIE): \
/* Length of the FDE. */ \
.long L(ENDFDE)-L(STARTFDE); \
L(STARTFDE): \
/* CIE pointer. */ \
.long L(STARTFDE)-L(STARTFRAME); \
/* PC-relative start address of the code. */ \
.long L(name##START)-.; \
/* Length of the code. */ \
.long L(name##END)-L(name##START); \
/* No augmentation data. */ \
.uleb128 0; \
/* The rest of the code depends on the number of parameters the syscall \
takes. */ \
EH_FRAME_##args(name); \
.align 4; \
L(ENDFDE): \
.previous
L(pseudo_end):
# define EH_FRAME_0(name) \
.byte 4; \
.long L(SAVESTK)-L(name##START); \
.byte 14; \
.uleb128 32; \
.byte 4; \
.long L(RESTSTK)-L(SAVESTK); \
.byte 14; \
.uleb128 8; \
.align 8
# define EH_FRAME_1(name) EH_FRAME_0 (name)
# define EH_FRAME_2(name) EH_FRAME_1 (name)
# define EH_FRAME_3(name) \
.byte 4; \
.long L(SAVESTK)-L(name##START); \
.byte 14; \
.uleb128 48; \
.byte 4; \
.long L(RESTSTK)-L(SAVESTK); \
.byte 14; \
.uleb128 8; \
.align 8
# define EH_FRAME_4(name) EH_FRAME_3 (name)
# define EH_FRAME_5(name) \
.byte 4; \
.long L(SAVESTK)-L(name##START); \
.byte 14; \
.uleb128 64; \
.byte 4; \
.long L(RESTSTK)-L(SAVESTK); \
.byte 14; \
.uleb128 8; \
.align 8
# define EH_FRAME_6(name) EH_FRAME_5 (name)
# undef ASM_SIZE_DIRECTIVE
# define ASM_SIZE_DIRECTIVE(name) L(name##END): .size name,.-name;
# define PUSHARGS_0 /* Nothing. */
# define PUSHARGS_1 PUSHARGS_0 movq %rdi, 8(%rsp);
@ -167,20 +74,20 @@
# define POPARGS_6 POPARGS_5 movq 48(%rsp), %r9;
/* We always have to align the stack before calling a function. */
# define SAVESTK_0 subq $24, %rsp; L(SAVESTK):
# define SAVESTK_0 subq $24, %rsp; cfi_adjust_cfa_offset (24);
# define SAVESTK_1 SAVESTK_0
# define SAVESTK_2 SAVESTK_1
# define SAVESTK_3 subq $40, %rsp; L(SAVESTK):
# define SAVESTK_3 subq $40, %rsp; cfi_adjust_cfa_offset (40);
# define SAVESTK_4 SAVESTK_3
# define SAVESTK_5 subq $56, %rsp; L(SAVESTK):
# define SAVESTK_5 subq $56, %rsp; cfi_adjust_cfa_offset (56);
# define SAVESTK_6 SAVESTK_5
# define RESTSTK_0 addq $24,%rsp; L(RESTSTK):
# define RESTSTK_0 addq $24,%rsp; cfi_adjust_cfa_offset (-24);
# define RESTSTK_1 RESTSTK_0
# define RESTSTK_2 RESTSTK_1
# define RESTSTK_3 addq $40, %rsp; L(RESTSTK):
# define RESTSTK_3 addq $40, %rsp; cfi_adjust_cfa_offset (-40);
# define RESTSTK_4 RESTSTK_3
# define RESTSTK_5 addq $56, %rsp; L(RESTSTK):
# define RESTSTK_5 addq $56, %rsp; cfi_adjust_cfa_offset (-56);
# define RESTSTK_6 RESTSTK_5
# ifdef IS_IN_libpthread