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.
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Ulrich Drepper
parent
bcd5f35667
commit
3e36c37d35
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@ -1,3 +1,9 @@
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2003-06-08 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Remove
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hand-written CFI generation code. Since ENTRY/END also initiated
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CFI frames this caused two CFI sets to be generated.
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2003-06-07 Ulrich Drepper <drepper@redhat.com>
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* cleanup_routine.c: New file.
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@ -29,7 +29,6 @@
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# define PSEUDO(name, syscall_name, args) \
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.text; \
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ENTRY (name) \
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L(name##START): \
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SINGLE_THREAD_P; \
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jne L(pseudo_cancel); \
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DO_CALL (syscall_name, args); \
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@ -55,100 +54,8 @@
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RESTSTK_##args \
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cmpq $-4095, %rax; \
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jae SYSCALL_ERROR_LABEL; \
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L(pseudo_end): \
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\
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/* Create unwinding information for the syscall wrapper. */ \
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.section .eh_frame,"a",@progbits; \
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L(STARTFRAME): \
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/* Length of the CIE. */ \
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.long L(ENDCIE)-L(STARTCIE); \
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L(STARTCIE): \
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/* CIE ID. */ \
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.long 0; \
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/* Version number. */ \
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.byte 1; \
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/* NUL-terminated augmentation string. Note "z" means there is an \
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augmentation value later on. */ \
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.string "zR"; \
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/* Code alignment factor. */ \
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.uleb128 1; \
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/* Data alignment factor. */ \
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.sleb128 -8; \
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/* Return address register column. */ \
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.byte 16; \
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/* Augmentation value length. */ \
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.uleb128 1; \
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/* Encoding: DW_EH_PE_pcrel + DW_EH_PE_sdata4. */ \
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.byte 0x1b; \
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/* Start of the table initialization. */ \
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.byte 0xc; \
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.uleb128 7; \
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.uleb128 8; \
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.byte 0x90; \
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.uleb128 1; \
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.align 8; \
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L(ENDCIE): \
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/* Length of the FDE. */ \
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.long L(ENDFDE)-L(STARTFDE); \
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L(STARTFDE): \
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/* CIE pointer. */ \
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.long L(STARTFDE)-L(STARTFRAME); \
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/* PC-relative start address of the code. */ \
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.long L(name##START)-.; \
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/* Length of the code. */ \
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.long L(name##END)-L(name##START); \
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/* No augmentation data. */ \
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.uleb128 0; \
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/* The rest of the code depends on the number of parameters the syscall \
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takes. */ \
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EH_FRAME_##args(name); \
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.align 4; \
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L(ENDFDE): \
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.previous
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L(pseudo_end):
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# define EH_FRAME_0(name) \
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.byte 4; \
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.long L(SAVESTK)-L(name##START); \
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.byte 14; \
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.uleb128 32; \
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.byte 4; \
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.long L(RESTSTK)-L(SAVESTK); \
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.byte 14; \
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.uleb128 8; \
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.align 8
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# define EH_FRAME_1(name) EH_FRAME_0 (name)
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# define EH_FRAME_2(name) EH_FRAME_1 (name)
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# define EH_FRAME_3(name) \
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.byte 4; \
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.long L(SAVESTK)-L(name##START); \
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.byte 14; \
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.uleb128 48; \
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.byte 4; \
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.long L(RESTSTK)-L(SAVESTK); \
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.byte 14; \
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.uleb128 8; \
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.align 8
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# define EH_FRAME_4(name) EH_FRAME_3 (name)
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# define EH_FRAME_5(name) \
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.byte 4; \
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.long L(SAVESTK)-L(name##START); \
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.byte 14; \
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.uleb128 64; \
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.byte 4; \
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.long L(RESTSTK)-L(SAVESTK); \
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.byte 14; \
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.uleb128 8; \
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.align 8
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# define EH_FRAME_6(name) EH_FRAME_5 (name)
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# undef ASM_SIZE_DIRECTIVE
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# define ASM_SIZE_DIRECTIVE(name) L(name##END): .size name,.-name;
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# define PUSHARGS_0 /* Nothing. */
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# define PUSHARGS_1 PUSHARGS_0 movq %rdi, 8(%rsp);
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@ -167,20 +74,20 @@
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# define POPARGS_6 POPARGS_5 movq 48(%rsp), %r9;
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/* We always have to align the stack before calling a function. */
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# define SAVESTK_0 subq $24, %rsp; L(SAVESTK):
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# define SAVESTK_0 subq $24, %rsp; cfi_adjust_cfa_offset (24);
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# define SAVESTK_1 SAVESTK_0
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# define SAVESTK_2 SAVESTK_1
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# define SAVESTK_3 subq $40, %rsp; L(SAVESTK):
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# define SAVESTK_3 subq $40, %rsp; cfi_adjust_cfa_offset (40);
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# define SAVESTK_4 SAVESTK_3
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# define SAVESTK_5 subq $56, %rsp; L(SAVESTK):
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# define SAVESTK_5 subq $56, %rsp; cfi_adjust_cfa_offset (56);
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# define SAVESTK_6 SAVESTK_5
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# define RESTSTK_0 addq $24,%rsp; L(RESTSTK):
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# define RESTSTK_0 addq $24,%rsp; cfi_adjust_cfa_offset (-24);
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# define RESTSTK_1 RESTSTK_0
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# define RESTSTK_2 RESTSTK_1
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# define RESTSTK_3 addq $40, %rsp; L(RESTSTK):
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# define RESTSTK_3 addq $40, %rsp; cfi_adjust_cfa_offset (-40);
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# define RESTSTK_4 RESTSTK_3
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# define RESTSTK_5 addq $56, %rsp; L(RESTSTK):
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# define RESTSTK_5 addq $56, %rsp; cfi_adjust_cfa_offset (-56);
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# define RESTSTK_6 RESTSTK_5
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# ifdef IS_IN_libpthread
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