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authorUlrich Drepper <drepper@redhat.com>2003-06-08 08:16:08 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-08 08:16:08 +0000
commit3e36c37d35827f060ee432712ba7fc0945e95a5b (patch)
tree5671c4c4d46e5bf397359c3838d4b69e36098eed /nptl/sysdeps
parentbcd5f356674dc28b77044d087da00d197386e0e1 (diff)
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Update.
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.
Diffstat (limited to 'nptl/sysdeps')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h109
1 files changed, 8 insertions, 101 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
index 7e7bc49..8173b39 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
@@ -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
-
-# 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;
+ L(pseudo_end):
+
# 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