maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[ELF][test] Improve linkerscript/linkorder.s

This commit is contained in:
Fangrui Song 2020-03-28 23:11:55 -07:00
parent ece79f4708
commit 2d19270efc
1 changed files with 48 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
lld/test/ELF/linkerscript/linkorder.s
View File

@ -1,33 +1,63 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: echo "SECTIONS { .rodata : {*(.rodata*)} .text : {*(.text.bar) *(.text.foo)} }" > %t.script
# RUN: ld.lld -o %t --script %t.script %t.o
# RUN: llvm-objdump -s %t | FileCheck %s
## Contiguous SHF_LINK_ORDER sections.
# RUN: echo 'SECTIONS { .rodata : {BYTE(0) *(.rodata*) BYTE(3)} \
# RUN: .text : {*(.text.bar) *(.text.foo)} }' > %t.lds
# RUN: ld.lld -T %t.lds %t.o -o %t
# RUN: llvm-readelf -S -x .rodata -x .text %t | FileCheck %s
# RUN: echo "SECTIONS { .rodata : {*(.rodata*)} .text : {*(.text.foo) *(.text.bar)} }" > %t.script
# RUN: ld.lld -o %t --script %t.script %t.o
# RUN: llvm-objdump -s %t | FileCheck --check-prefix=INV %s
# CHECK: Hex dump of section '.rodata':
# CHECK-NEXT: 00020103
# CHECK: Hex dump of section '.text':
# CHECK-NEXT: 0201
# RUN: echo 'SECTIONS { .rodata : {BYTE(0) *(.rodata*) BYTE(3)} \
# RUN: .text : {*(.text.foo) *(.text.bar)} }' > %t1.lds
# RUN: ld.lld -T %t1.lds %t.o -o %t1
# RUN: llvm-readelf -S -x .rodata -x .text %t1 | FileCheck --check-prefix=CHECK1 %s
# CHECK: Contents of section .rodata:
# CHECK-NEXT: 02000000 00000000 01000000 00000000
# CHECK: Contents of section .text:
# CHECK-NEXT: 02000000 00000000 01000000 00000000
# CHECK1: Hex dump of section '.rodata':
# CHECK1-NEXT: 00010203
# CHECK1: Hex dump of section '.text':
# CHECK1-NEXT: 0102
# INV: Contents of section .rodata:
# INV-NEXT: 01000000 00000000 02000000 00000000
# INV: Contents of section .text:
# INV-NEXT: 01000000 00000000 02000000 00000000
## Adjacent input sections descriptions are contiguous.
## Orphan section .text.bar precedes .text.foo, so swap the order of .rodata.*
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) *(.rodata.bar)} }' > %t2.lds
# RUN: ld.lld -T %t2.lds %t.o -o %t2
# RUN: llvm-readelf -S -x .rodata %t2 | FileCheck --check-prefix=CHECK2 %s
# CHECK2: [ 1] .rodata {{.*}} AL 4
# CHECK2: [ 4] .text.bar {{.*}} AX 0
# CHECK2: Hex dump of section '.rodata':
# CHECK2-NEXT: 0201
## Non-contiguous SHF_LINK_ORDER sections, separated by a BYTE.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) BYTE(0) *(.rodata.bar)} }' > %terr1.lds
# RUN: ld.lld -T %terr1.lds %t.o -o /dev/null
## Non-contiguous SHF_LINK_ORDER sections, separated by a non-SHF_LINK_ORDER section.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) *(.text) *(.rodata.bar)} }' > %terr2.lds
# RUN: not ld.lld -T %terr2.lds %t.o -o /dev/null 2>&1 | FileCheck --check-prefix=ERR %s
## Non-contiguous SHF_LINK_ORDER sections, separated by a symbol assignment.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) a = .; *(.rodata.bar)} }' > %terr3.lds
# RUN: ld.lld -T %terr3.lds %t.o -o /dev/null
# ERR: error: incompatible section flags for .rodata
.global _start
_start:
.section .ro,"a"
.byte 0
.section .text.bar,"a",@progbits
.quad 2
.byte 2
.section .text.foo,"a",@progbits
.quad 1
.byte 1
.section .rodata.foo,"ao",@progbits,.text.foo
.quad 1
.byte 1
.section .rodata.bar,"ao",@progbits,.text.bar
.quad 2
.byte 2