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Replace hand-coded unwind tables from x86-64 sem_wait.
This commit is contained in:
Ulrich Drepper
parent
63601ccd16
commit
c3c2f3cf56
@ -5,6 +5,7 @@
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hand-coded unwind tables.
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* sysdeps/unix/sysv/linux/x86_64/pthread_once.S (__pthread_once):
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Likewise.
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* sysdeps/unix/sysv/linux/x86_64/sem_wait.S (sem_wait): Likewise.
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2009-06-12 Ulrich Drepper <drepper@redhat.com>
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003, 2005, 2007, 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -31,10 +31,21 @@
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.align 16
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sem_wait:
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.LSTARTCODE:
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cfi_startproc
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#ifdef SHARED
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cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect,
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DW.ref.__gcc_personality_v0)
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cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART)
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#else
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cfi_personality(DW_EH_PE_udata4, __gcc_personality_v0)
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cfi_lsda(DW_EH_PE_udata4, .LexceptSTART)
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#endif
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pushq %r12
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.Lpush_r12:
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cfi_adjust_cfa_offset(8)
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cfi_rel_offset(%r12, 0)
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pushq %r13
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.Lpush_r13:
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cfi_adjust_cfa_offset(8)
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cfi_rel_offset(%r13, 0)
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movq %rdi, %r13
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#if VALUE == 0
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@ -57,13 +68,17 @@ sem_wait:
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7: xorl %eax, %eax
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9: popq %r13
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.Lpop_r13:
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cfi_adjust_cfa_offset(-8)
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cfi_restore(%r13)
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popq %r12
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.Lpop_r12:
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cfi_adjust_cfa_offset(-8)
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cfi_restore(%r12)
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retq
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.Lafter_retq:
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cfi_adjust_cfa_offset(2 * 8)
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cfi_rel_offset(%r12, 8)
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cfi_rel_offset(%r13, 0)
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1: LOCK
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addq $1, NWAITERS(%r13)
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@ -141,15 +156,15 @@ sem_wait_cleanup:
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call _Unwind_Resume@PLT
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hlt
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.LENDCODE:
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cfi_endproc
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.size sem_wait_cleanup,.-sem_wait_cleanup
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.section .gcc_except_table,"a",@progbits
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.LexceptSTART:
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.byte 0xff # @LPStart format (omit)
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.byte 0xff # @TType format (omit)
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.byte 0x01 # call-site format
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# DW_EH_PE_uleb128
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.byte DW_EH_PE_omit # @LPStart format
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.byte DW_EH_PE_omit # @TType format
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.byte DW_EH_PE_uleb128 # call-site format
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.uleb128 .Lcstend-.Lcstbegin
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.Lcstbegin:
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.uleb128 .LcleanupSTART-.LSTARTCODE
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@ -163,97 +178,6 @@ sem_wait_cleanup:
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.Lcstend:
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.section .eh_frame,"a",@progbits
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.LSTARTFRAME:
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.long .LENDCIE-.LSTARTCIE # Length of the CIE.
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.LSTARTCIE:
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.long 0 # CIE ID.
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.byte 1 # Version number.
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#ifdef SHARED
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.string "zPLR" # NUL-terminated augmentation
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# string.
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#else
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.string "zPL" # NUL-terminated augmentation
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# string.
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#endif
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.uleb128 1 # Code alignment factor.
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.sleb128 -8 # Data alignment factor.
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.byte 16 # Return address register
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# column.
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#ifdef SHARED
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.uleb128 7 # Augmentation value length.
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.byte 0x9b # Personality: DW_EH_PE_pcrel
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# + DW_EH_PE_sdata4
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# + DW_EH_PE_indirect
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.long DW.ref.__gcc_personality_v0-.
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.byte 0x1b # LSDA Encoding: DW_EH_PE_pcrel
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# + DW_EH_PE_sdata4.
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.byte 0x1b # FDE Encoding: DW_EH_PE_pcrel
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# + DW_EH_PE_sdata4.
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#else
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.uleb128 10 # Augmentation value length.
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.byte 0x0 # Personality: absolute
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.quad __gcc_personality_v0
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.byte 0x0 # LSDA Encoding: absolute
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#endif
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.byte 0x0c # DW_CFA_def_cfa
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.uleb128 7
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.uleb128 8
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.byte 0x90 # DW_CFA_offset, column 0x10
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.uleb128 1
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.align 8
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.LENDCIE:
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.long .LENDFDE-.LSTARTFDE # Length of the FDE.
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.LSTARTFDE:
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.long .LSTARTFDE-.LSTARTFRAME # CIE pointer.
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#ifdef SHARED
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.long .LSTARTCODE-. # PC-relative start address
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# of the code.
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.long .LENDCODE-.LSTARTCODE # Length of the code.
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.uleb128 4 # Augmentation size
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.long .LexceptSTART-.
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#else
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.quad .LSTARTCODE # Start address of the code.
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.quad .LENDCODE-.LSTARTCODE # Length of the code.
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.uleb128 8 # Augmentation size
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.quad .LexceptSTART
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#endif
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.byte 4 # DW_CFA_advance_loc4
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.long .Lpush_r12-.LSTARTCODE
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.byte 14 # DW_CFA_def_cfa_offset
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.uleb128 16
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.byte 0x8c # DW_CFA_offset %r12
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.uleb128 2
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.byte 4 # DW_CFA_advance_loc4
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.long .Lpush_r13-.Lpush_r12
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.byte 14 # DW_CFA_def_cfa_offset
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.uleb128 24
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.byte 0x8d # DW_CFA_offset %r13
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.uleb128 3
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.byte 4 # DW_CFA_advance_loc4
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.long .Lpop_r13-.Lpush_r13
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.byte 14 # DW_CFA_def_cfa_offset
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.uleb128 16
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.byte 0xcd # DW_CFA_restore %r13
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.byte 4 # DW_CFA_advance_loc4
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.long .Lpop_r12-.Lpop_r13
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.byte 14 # DW_CFA_def_cfa_offset
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.uleb128 8
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.byte 0xcc # DW_CFA_restore %r12
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.byte 4 # DW_CFA_advance_loc4
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.long .Lafter_retq-.Lpop_r12
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.byte 14 # DW_CFA_def_cfa_offset
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.uleb128 24
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.byte 0x8c # DW_CFA_offset %r12
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.uleb128 2
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.byte 0x8d # DW_CFA_offset %r13
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.uleb128 3
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.align 8
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.LENDFDE:
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#ifdef SHARED
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.hidden DW.ref.__gcc_personality_v0
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.weak DW.ref.__gcc_personality_v0
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