68fa4e8c34
Summary: Currently when --no-rosegment is specified or a linker script with SECTIONS command is used, .rodata (A) .text (AX) are assigned the same rank and .rodata may be placed after .text . This increases the gap between .text and .bss and can cause pc-relative relocation overflow (e.g. gcc crtbegin.o crtbegin.S have R_X86_64_PC32 relocation from .text to .bss). This patch makes SingleRoRx affect only segment layout, not section layout. As a consequence, .rodata will be placed before .text regardless of SingleRoRx. Reviewers: espindola, ruiu, grimar, echristo, javed.absar Subscribers: emaste, arichardson, llvm-commits Differential Revision: https://reviews.llvm.org/D48405 llvm-svn: 335627
38 lines
1.0 KiB
ArmAsm
38 lines
1.0 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
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# RUN: echo "SECTIONS { .text : { *(.text.*) } }" > %t.script
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# RUN: echo "_bar" > %t.ord
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# RUN: echo "_foo" >> %t.ord
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# RUN: ld.lld --symbol-ordering-file %t.ord -o %t --script %t.script %t.o
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# RUN: llvm-objdump -s %t | FileCheck %s
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# CHECK: Contents of section .rodata:
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# CHECK-NEXT: 02000000 00000000 01000000 00000000
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# CHECK: Contents of section .text:
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# CHECK-NEXT: 02000000 00000000 01000000 00000000
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# RUN: echo "_foo" > %t.ord
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# RUN: echo "_bar" >> %t.ord
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# RUN: ld.lld --symbol-ordering-file %t.ord -o %t --script %t.script %t.o
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# RUN: llvm-objdump -s %t | FileCheck %s --check-prefix=INV
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# INV: Contents of section .rodata:
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# INV-NEXT: 01000000 00000000 02000000 00000000
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# INV: Contents of section .text:
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# INV-NEXT: 01000000 00000000 02000000 00000000
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.section .text.foo,"a",@progbits
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_foo:
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.quad 1
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.section .text.bar,"a",@progbits
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_bar:
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.quad 2
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.section .rodata.foo,"ao",@progbits,.text.foo
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.quad 1
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.section .rodata.bar,"ao",@progbits,.text.bar
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.quad 2
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