File: merge-output-sections.s

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (35 lines) | stat: -rw-r--r-- 1,170 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o

## SHF_MERGE sections within the same output section can be freely merged.
# RUN: echo 'SECTIONS { .rodata : { *(.rodata.*) }}' > %t.script
# RUN: ld.lld %t.o -T %t.script -o %t
# RUN: llvm-readelf -x .rodata %t | FileCheck --check-prefix=SAME %s --implicit-check-not=section

# SAME:      section '.rodata':
# SAME-NEXT: 0x00000000 01000200 0300

## SHF_MERGE sections with different output sections cannot be merged.
# RUN: echo 'SECTIONS { \
# RUN:   .rodata.foo : { *(.rodata.foo) } \
# RUN:   .rodata.bar : { *(.rodata.bar) } \
# RUN: }' > %t2.script
# RUN: ld.lld %t.o -T %t2.script -o %t2
# RUN: llvm-readelf -x .rodata.foo -x .rodata.bar %t2 | FileCheck --check-prefix=DIFF %s --implicit-check-not=section

# DIFF:      section '.rodata.foo':
# DIFF-NEXT: 0x00000000 01000200 0300
# DIFF:      section '.rodata.bar':
# DIFF-NEXT: 0x00000006 0100

.section .rodata.foo,"aM",@progbits,2,unique,0
.short 1
.short 2
.section .rodata.foo,"aM",@progbits,2,unique,1
.short 1
.short 3

.section .rodata.bar,"aM",@progbits,2,unique,0
.short 1
.section .rodata.bar,"aM",@progbits,2,unique,1
.short 1