# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/keep.s -o %t1.o
## First check that section "keep" is garbage collected without using KEEP
# RUN: echo "SECTIONS { \
# RUN: .text : { *(.text) } \
# RUN: .keep : { *(.keep) } \
# RUN: .temp : { *(.temp) }}" > %t.script
# RUN: ld.lld --gc-sections -o %t --script %t.script %t.o
# RUN: llvm-objdump --section-headers %t | \
# RUN: FileCheck -check-prefix=SECGC %s
# SECGC: Sections:
# SECGC-NEXT: Idx Name Size
# SECGC-NEXT: 0 00000000
# SECGC-NEXT: 1 .text 00000007
# SECGC-NEXT: 2 .temp 00000004
## Now apply KEEP command to preserve the section.
# RUN: echo "SECTIONS { \
# RUN: .text : { *(.text) } \
# RUN: .keep : { KEEP(*(.keep)) } \
# RUN: .temp : { *(.temp) }}" > %t.script
# RUN: ld.lld --gc-sections -o %t --script %t.script %t.o
# RUN: llvm-objdump --section-headers %t | \
# RUN: FileCheck -check-prefix=SECNOGC %s
# SECNOGC: Sections:
# SECNOGC-NEXT: Idx Name Size
# SECNOGC-NEXT: 0 00000000
# SECNOGC-NEXT: 1 .text 00000007
# SECNOGC-NEXT: 2 .keep 00000004
# SECNOGC-NEXT: 3 .temp 00000004
## A section name matches two entries in the SECTIONS directive. The
## first one doesn't have KEEP, the second one does. If section that have
## KEEP is the first in order then section is NOT collected.
# RUN: echo "SECTIONS { \
# RUN: . = SIZEOF_HEADERS; \
# RUN: .keep : { KEEP(*(.keep)) } \
# RUN: .nokeep : { *(.keep) }}" > %t.script
# RUN: ld.lld --gc-sections -o %t --script %t.script %t.o
# RUN: llvm-objdump --section-headers %t | FileCheck --check-prefix=MIXED1 %s
# MIXED1: Sections:
# MIXED1-NEXT: Idx Name Size
# MIXED1-NEXT: 0 00000000
# MIXED1-NEXT: 1 .keep 00000004
# MIXED1-NEXT: 2 .temp 00000004 0000000000000124
# MIXED1-NEXT: 3 .text 00000007 0000000000000128
# MIXED1-NEXT: 4 .comment 00000008 0000000000000000
# MIXED1-NEXT: 5 .symtab 00000060 0000000000000000
# MIXED1-NEXT: 6 .shstrtab 00000036 0000000000000000
# MIXED1-NEXT: 7 .strtab 00000012 0000000000000000
## The same, but now section without KEEP is at first place.
## gold and bfd linkers disagree here. gold collects .keep while
## bfd keeps it. Our current behavior is compatible with bfd although
## we can choose either way.
# RUN: echo "SECTIONS { \
# RUN: . = SIZEOF_HEADERS; \
# RUN: .nokeep : { *(.keep) } \
# RUN: .keep : { KEEP(*(.keep)) }}" > %t.script
# RUN: ld.lld --gc-sections -o %t --script %t.script %t.o
# RUN: llvm-objdump --section-headers %t | FileCheck --check-prefix=MIXED2 %s
# MIXED2: Sections:
# MIXED2-NEXT: Idx Name Size
# MIXED2-NEXT: 0 00000000
# MIXED2-NEXT: 1 .nokeep 00000004 0000000000000120
# MIXED2-NEXT: 2 .temp 00000004 0000000000000124
# MIXED2-NEXT: 3 .text 00000007 0000000000000128
# MIXED2-NEXT: 4 .comment 00000008 0000000000000000
# MIXED2-NEXT: 5 .symtab 00000060 0000000000000000
# MIXED2-NEXT: 6 .shstrtab 00000038 0000000000000000
# MIXED2-NEXT: 7 .strtab 00000012 0000000000000000
# Check file pattern for kept sections.
# RUN: echo "SECTIONS { \
# RUN: . = SIZEOF_HEADERS; \
# RUN: .keep : { KEEP(*1.o(.keep)) } \
# RUN: }" > %t.script
# RUN: ld.lld --gc-sections -o %t --script %t.script %t1.o %t.o
# RUN: llvm-objdump -s %t | FileCheck --check-prefix=FILEMATCH %s
# FILEMATCH: Contents of section .keep:
# FILEMATCH-NEXT: 0120 41414141 AAAA
.global _start
_start:
mov temp, %eax
.section .keep, "a"
keep:
.long 1
.section .temp, "a"
temp:
.long 2
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