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We already do this for shstrtab, so might as well do it for strtab. This extracts the string table building code into a separate class. The idea is to use it for other object formats too. I mostly wanted to do this for the general principle, but it does save a little bit on object file size. I tried this on a clang bootstrap and saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for a release build). Differential Revision: http://reviews.llvm.org/D3533 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207670 91177308-0d34-0410-b5e6-96231b3b80d8
93 lines
2.5 KiB
ArmAsm
93 lines
2.5 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -s -t | FileCheck %s
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// Test that we produce the group sections and that they are a the beginning
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// of the file.
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// CHECK: Section {
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// CHECK: Index: 1
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// CHECK-NEXT: Name: .group
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// CHECK-NEXT: Type: SHT_GROUP
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x40
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// CHECK-NEXT: Size: 12
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// CHECK-NEXT: Link: 13
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// CHECK-NEXT: Info: 1
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 4
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 2
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// CHECK-NEXT: Name: .group
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// CHECK-NEXT: Type: SHT_GROUP
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x4C
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// CHECK-NEXT: Size: 8
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// CHECK-NEXT: Link: 13
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// CHECK-NEXT: Info: 2
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 4
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 3
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// CHECK-NEXT: Name: .group
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// CHECK-NEXT: Type: SHT_GROUP
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x54
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// CHECK-NEXT: Size: 12
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// CHECK-NEXT: Link: 13
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// CHECK-NEXT: Info: 13
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 4
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// CHECK-NEXT: }
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// Test that g1 and g2 are local, but g3 is an undefined global.
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// CHECK: Symbol {
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// CHECK: Name: g1
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .foo (0x7)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: g2
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .group (0x2)
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// CHECK-NEXT: }
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// CHECK: Symbol {
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// CHECK: Name: g3
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Global
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: Undefined (0x0)
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// CHECK-NEXT: }
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.section .foo,"axG",@progbits,g1,comdat
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g1:
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nop
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.section .bar,"ax?",@progbits
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nop
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.section .zed,"axG",@progbits,g2,comdat
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nop
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.section .baz,"axG",@progbits,g3,comdat
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.long g3
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