Files
clang-p2996/lld/test/ELF/linkerscript/linkorder2.s
Fangrui Song 9e33c09647 [ELF] Keep orphan section names (.rodata.foo .text.foo) unchanged if !hasSectionsCommand
This behavior matches GNU ld and seems reasonable.

```
// If a SECTIONS command is not specified
.text.* -> .text
.rodata.* -> .rodata
.init_array.* -> .init_array
```

A proposed Linux feature CONFIG_FG_KASLR may depend on the GNU ld behavior.

Reword a comment about -z keep-text-section-prefix and a comment about
CommonSection (deleted by rL286234).

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D75225
2020-03-23 10:30:06 -07:00

38 lines
1.1 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.*)} .text : {*(.text.*)} }' > %t.script
# RUN: echo "_bar" > %t.ord
# RUN: echo "_foo" >> %t.ord
# RUN: ld.lld --symbol-ordering-file %t.ord -o %t --script %t.script %t.o
# RUN: llvm-objdump -s %t | FileCheck %s
# CHECK: Contents of section .rodata:
# CHECK-NEXT: 02000000 00000000 01000000 00000000
# CHECK: Contents of section .text:
# CHECK-NEXT: 02000000 00000000 01000000 00000000
# RUN: echo "_foo" > %t.ord
# RUN: echo "_bar" >> %t.ord
# RUN: ld.lld --symbol-ordering-file %t.ord -o %t --script %t.script %t.o
# RUN: llvm-objdump -s %t | FileCheck %s --check-prefix=INV
# INV: Contents of section .rodata:
# INV-NEXT: 01000000 00000000 02000000 00000000
# INV: Contents of section .text:
# INV-NEXT: 01000000 00000000 02000000 00000000
.section .text.foo,"a",@progbits
_foo:
.quad 1
.section .text.bar,"a",@progbits
_bar:
.quad 2
.section .rodata.foo,"ao",@progbits,.text.foo
.quad 1
.section .rodata.bar,"ao",@progbits,.text.bar
.quad 2