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132a610184
build/build_config.h sometimes includes other headers which aren't appropriate for .S files. Bug: crashpad:30 Change-Id: Ie039e08599137d157c60482c72d6eba6a5566ef5 Reviewed-on: https://chromium-review.googlesource.com/966876 Commit-Queue: Joshua Peraza <jperaza@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
60 lines
2.0 KiB
ArmAsm
60 lines
2.0 KiB
ArmAsm
// Copyright 2018 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This note section is used on ELF platforms to give ElfImageReader a method
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// of finding the instance of CrashpadInfo g_crashpad_info without requiring
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// that symbol to be in the dynamic symbol table.
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#include "util/misc/elf_note_types.h"
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// namespace crashpad {
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// CrashpadInfo g_crashpad_info;
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// } // namespace crashpad
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#define CRASHPAD_INFO_SYMBOL _ZN8crashpad15g_crashpad_infoE
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#define NOTE_ALIGN 4
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// This section must be "a"llocated so that it appears in the final binary at
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// runtime, and "w"ritable so that the relocation to CRASHPAD_INFO_SYMBOL can
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// be performed.
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.section .note.crashpad.info,"aw",%note
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.balign NOTE_ALIGN
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# .globl indicates that it's available to link against other .o files. .hidden
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# indicates that it will not appear in the executable's symbol table.
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.globl CRASHPAD_NOTE_REFERENCE
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.hidden CRASHPAD_NOTE_REFERENCE
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.type CRASHPAD_NOTE_REFERENCE, %object
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CRASHPAD_NOTE_REFERENCE:
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.long name_end - name // namesz
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.long desc_end - desc // descsz
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.long CRASHPAD_ELF_NOTE_TYPE_CRASHPAD_INFO // type
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name:
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.asciz CRASHPAD_ELF_NOTE_NAME
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name_end:
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.balign NOTE_ALIGN
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desc:
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#if defined(__LP64__)
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.quad CRASHPAD_INFO_SYMBOL
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#else
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#if defined(__LITTLE_ENDIAN__)
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.long CRASHPAD_INFO_SYMBOL
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.long 0
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#else
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.long 0
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.long CRASHPAD_INFO_SYMBOL
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#endif // __LITTLE_ENDIAN__
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#endif // __LP64__
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desc_end:
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.size CRASHPAD_NOTE_REFERENCE, .-CRASHPAD_NOTE_REFERENCE
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