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
36
37
38
39
40
41
42
43
44
45
46
|
# REQUIRES: x86
# LINK_ORDER cnamed sections are not kept alive by the __start_* reference.
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: ld.lld --gc-sections -z start-stop-gc -z nostart-stop-gc %t.o -o %t
# RUN: llvm-objdump --section-headers -t %t | FileCheck %s
## With -z start-stop-gc (default), non-SHF_LINK_ORDER C identifier name
## sections are not retained by __start_/__stop_ references.
# RUN: ld.lld --gc-sections %t.o -o %t
# RUN: llvm-readelf -S -s %t | FileCheck %s --check-prefix=GC
# RUN: ld.lld --gc-sections -z start-stop-gc %t.o -o %t1
# RUN: llvm-readelf -S -s %t1 | FileCheck %s --check-prefix=GC
# CHECK: Sections:
# CHECK-NOT: yy
# CHECK: xx {{.*}} DATA
# CHECK-NOT: yy
# CHECK: SYMBOL TABLE:
# CHECK: xx 0000000000000000 .protected __start_xx
# CHECK: w *UND* 0000000000000000 __start_yy
# GC: Section Headers:
# GC-NOT: xx
# GC-NOT: yy
# GC: WEAK DEFAULT UND __start_xx
# GC: WEAK DEFAULT UND __start_yy
.weak __start_xx
.weak __start_yy
.global _start
_start:
.quad __start_xx
.quad __start_yy
.section xx,"a"
.quad 0
.section .foo,"a"
.quad 0
.section yy,"ao",@progbits,.foo
.quad 0
|
