d52675e0a7
This patch enables lld to read AArch64 Build Attributes and convert them
into GNU Properties.
Changes:
- Parses AArch64 Build Attributes from input object files.
- Converts known attributes into corresponding GNU Properties.
- Merges attributes when linking multiple objects.
Spec reference:
https://github.com/ARM-software/abi-aa/pull/230/files#r1030
Co-authored-by: Sivan Shani <sivan.shani@arm.com>
---------
Co-authored-by: Sivan Shani <sivan.shani@arm.com>
36 lines
996 B
ArmAsm
36 lines
996 B
ArmAsm
// REQUIRES: aarch64
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// RUN: llvm-mc -triple=aarch64 %s -filetype=obj -o %t.o
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// RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR
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// ERR: GNU properties and build attributes have conflicting AArch64 PAuth data
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// ERR-NEXT: GNU properties and build attributes have conflicting AArch64 PAuth data
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.aeabi_subsection aeabi_pauthabi, required, uleb128
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.aeabi_attribute Tag_PAuth_Platform, 5
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.aeabi_attribute Tag_PAuth_Schema, 5
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.aeabi_subsection aeabi_feature_and_bits, optional, uleb128
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.aeabi_attribute Tag_Feature_BTI, 1
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.aeabi_attribute Tag_Feature_PAC, 1
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.aeabi_attribute Tag_Feature_GCS, 1
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.section ".note.gnu.property", "a"
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.long 0x4
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.long 0x10
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.long 0x5
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.asciz "GNU"
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.long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND
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.long 0x4
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.long 0x2 // GNU_PROPERTY_AARCH64_FEATURE_1_PAC
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.long 0x0
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.section ".note.gnu.property", "a"
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.long 0x4
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.long 0x18
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.long 0x5
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.asciz "GNU"
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.long 0xc0000001
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.long 0x10
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.quad 0x12345678 // platform
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.quad 0x87654321 // version
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