1## This test shows that when symbol/section names are optimized in the string
2## table to share the same entry, due to tail merging, llvm-objcopy operations
3## function correctly without corrupting the names of unchanged sections/symbols.
4
5# RUN: yaml2obj %s -o %t.o
6## Sanity check that the strings have been pooled.
7# RUN: llvm-readobj %t.o --string-dump .strtab --string-dump .shstrtab \
8# RUN:   | FileCheck %s --check-prefix=VALIDATE --implicit-check-not='] bar' --implicit-check-not=.blag
9
10# VALIDATE:      String dump of section '.strtab':
11# VALIDATE-NEXT: [     1] bazfoobar
12# VALIDATE-EMPTY:
13# VALIDATE-NEXT: String dump of section '.shstrtab':
14# VALIDATE-NEXT: [     1] .blam.blah.blag
15
16## Case 1: Basic copy.
17# RUN: llvm-objcopy %t.o %t.copy
18# RUN: llvm-readobj --section-headers --symbols %t.copy | FileCheck %s --check-prefix=COPY
19
20# COPY: Sections [
21# COPY:   Name: .blam.blah.blag (
22# COPY:   Name: .blah.blag (
23# COPY:   Name: .blag (
24# COPY: Symbols [
25# COPY:   Name: bar (
26# COPY:   Name: foobar (
27# COPY:   Name: bazfoobar (
28
29## Case 2: Rename section.
30# RUN: llvm-objcopy %t.o %t.rename-section --rename-section .blah.blag=.blob.blab
31# RUN: llvm-readobj --section-headers %t.rename-section \
32# RUN:   | FileCheck %s --check-prefix=RENAME-SECTION
33
34# RENAME-SECTION: Sections [
35# RENAME-SECTION:   Name: .blam.blah.blag (
36# RENAME-SECTION:   Name: .blob.blab (
37# RENAME-SECTION:   Name: .blag (
38
39## Case 3: Rename symbol.
40# RUN: llvm-objcopy %t.o %t.rename-symbol --redefine-sym foobar=raboof
41# RUN: llvm-readobj --symbols %t.rename-symbol \
42# RUN:   | FileCheck %s --check-prefix=RENAME-SYMBOL
43
44# RENAME-SYMBOL: Symbols [
45# RENAME-SYMBOL:   Name: bar (
46# RENAME-SYMBOL:   Name: raboof (
47# RENAME-SYMBOL:   Name: bazfoobar (
48
49## Case 4: Remove section.
50# RUN: llvm-objcopy %t.o %t.remove-section -R .blah.blag
51# RUN: llvm-readobj --section-headers %t.remove-section \
52# RUN:   | FileCheck %s --check-prefix=REMOVE-SECTION --implicit-check-not .blah.blag
53
54# REMOVE-SECTION: Sections [
55# REMOVE-SECTION:   Name: .blam.blah.blag (
56# REMOVE-SECTION:   Name: .blag (
57
58## Case 5: Remove symbol.
59# RUN: llvm-objcopy %t.o %t.remove-symbol -N foobar
60# RUN: llvm-readobj --symbols %t.remove-symbol \
61# RUN:   | FileCheck %s --check-prefix=REMOVE-SYMBOL --implicit-check-not='Name: foobar'
62
63# REMOVE-SYMBOL: Symbols [
64# REMOVE-SYMBOL:   Name: bar (
65# REMOVE-SYMBOL:   Name: bazfoobar (
66
67--- !ELF
68FileHeader:
69  Class:   ELFCLASS64
70  Data:    ELFDATA2LSB
71  Type:    ET_EXEC
72  Machine: EM_X86_64
73Sections:
74  - Name: .blam.blah.blag
75    Type: SHT_PROGBITS
76  - Name: .blah.blag
77    Type: SHT_PROGBITS
78  - Name: .blag
79    Type: SHT_PROGBITS
80Symbols:
81  - Name: bar
82  - Name: foobar
83  - Name: bazfoobar
84