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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// base::mac::CallWithEHFrame(void () block_pointer)
#define CALL_WITH_EH_FRAME __ZN4base3mac15CallWithEHFrameEU13block_pointerFvvE
.section __TEXT,__text,regular,pure_instructions
#if !defined(COMPONENT_BUILD)
.private_extern CALL_WITH_EH_FRAME
.align 4
// Configure the C++ exception handler personality routine. Normally the
// compiler would emit ___gxx_personality_v0 here. The purpose of this
// function is to use a custom personality routine.
.cfi_personality 155, __ZN4base3mac21CxxPersonalityRoutineEi14_Unwind_ActionyP17_Unwind_ExceptionP15_Unwind_Context
.cfi_lsda 16, CallWithEHFrame_exception_table
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset %rbp, -16
movq %rsp, %rbp
.cfi_def_cfa_register %rbp
// Load the function pointer from the block descriptor.
movq 16(%rdi), %rax
// Execute the block in the context of a C++ try{}.
callq *%rax
popq %rbp
// Landing pad for the exception handler. This should never be called, since
// the personality routine will stop the search for an exception handler,
// which will cause the runtime to invoke the default terminate handler.
movq %rax, %rdi
callq ___cxa_begin_catch // The ABI requires a call to the catch handler.
ud2 // In the event this is called, make it fatal.
// The C++ exception table that is used to identify this frame as an
// exception handler. See and
.section __TEXT,__gcc_except_tab
.align 2
.byte 255 // DW_EH_PE_omit
.byte 155 // DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4
.asciz "\242\200\200" // LE int128 for the number of bytes in this table.
.byte 3 // DW_EH_PE_udata4
.byte 26 // Callsite table length.
// First callsite.
CS1_begin = Ltry_start - Lfunction_start
.long CS1_begin
CS1_end = Ltry_end - Ltry_start
.long CS1_end
// First landing pad.
LP1 = Lcatch - Lfunction_start
.long LP1
.byte 1 // Action record.
// Second callsite.
CS2_begin = Ltry_end - Lfunction_start
.long CS2_begin
CS2_end = Lfunction_end - Ltry_end
.long CS2_end
// Second landing pad (none).
.long 0
.byte 0 // No action.
// Action table.
.byte 1 // Action record 1.
.byte 0 // No further action to take.
.long 0 // No type filter for this catch(){} clause.
.align 2