# REQUIRES: x86
# RUN: rm -rf %t; split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/main.s -o %t/main.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/foo.s -o %t/foo.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/seg.s -o %t/seg.o
# RUN: %lld -lSystem %t/main.o %t/foo.o -o %t.out \
# RUN: -rename_section __FOO __bar __BAZ __quux \
# RUN: -rename_section __WHAT __ever __FOO __bar \
# RUN: -u 'section$start$__UFLAG_SEG$__uflag_sect' \
# RUN: -U 'section$start$__DYNAMIC$__lookup' \
# RUN: -U 'section$start$__DYNAMIC$__unref' \
# RUN: -e 'section$start$__TEXT$__text'
# RUN: llvm-objdump --macho --syms --section-headers %t.out > %t-dump.txt
# RUN: llvm-objdump --no-print-imm-hex --macho -d --no-symbolic-operands --no-show-raw-insn %t.out >> %t-dump.txt
# RUN: llvm-objdump --macho --function-starts %t.out >> %t-dump.txt
# RUN: FileCheck %s < %t-dump.txt
## Setting the entry point to the start of the __text section should
## set it to _main, since that's the first function in that section.
# RUN: llvm-objdump --macho --syms --all-headers %t.out \
# RUN: | FileCheck --check-prefix=MAINENTRY %s
# MAINENTRY: [[#%x, MAINADDR:]] g F __TEXT,__text _main
# MAINENTRY: LC_MAIN
# MAINENTRY-NEXT: cmdsize
# MAINENTRY-NEXT: entryoff [[#%d, MAINADDR - 0x100000000]]
## Nothing should change if we reorder two functions in the text segment.
## (Reorder some section$start/end symbols too for good measure.)
# RUN: %lld -lSystem %t/main.o %t/foo.o -o %t.ordered.out \
# RUN: -order_file %t/order.txt \
# RUN: -rename_section __FOO __bar __BAZ __quux \
# RUN: -rename_section __WHAT __ever __FOO __bar \
# RUN: -u 'section$start$__UFLAG_SEG$__uflag_sect' \
# RUN: -U 'section$start$__DYNAMIC$__lookup' \
# RUN: -U 'section$start$__DYNAMIC$__unref' \
# RUN: -e 'section$start$__TEXT$__text'
# RUN: llvm-objdump --macho --syms --section-headers %t.ordered.out > %t-ordered-dump.txt
# RUN: llvm-objdump --no-print-imm-hex --macho -d --no-symbolic-operands --no-show-raw-insn %t.ordered.out >> %t-ordered-dump.txt
# RUN: llvm-objdump --macho --function-starts %t.out >> %t-ordered-dump.txt
# RUN: FileCheck %s < %t-ordered-dump.txt
## `-undefined dynamic_lookup` also shouldn't change anything.
# RUN: %lld -lSystem %t/main.o %t/foo.o -o %t.dl.out -undefined dynamic_lookup \
# RUN: -rename_section __FOO __bar __BAZ __quux \
# RUN: -rename_section __WHAT __ever __FOO __bar \
# RUN: -u 'section$start$__UFLAG_SEG$__uflag_sect' \
# RUN: -U 'section$start$__DYNAMIC$__lookup' \
# RUN: -U 'section$start$__DYNAMIC$__unref' \
# RUN: -e 'section$start$__TEXT$__text'
# RUN: llvm-objdump --macho --syms --section-headers %t.dl.out > %t-dump.dl.txt
# RUN: llvm-objdump --no-print-imm-hex --macho -d --no-symbolic-operands --no-show-raw-insn %t.dl.out >> %t-dump.dl.txt
# RUN: llvm-objdump --macho --function-starts %t.out >> %t-dump.dl.txt
# RUN: FileCheck %s < %t-dump.dl.txt
## ...except that the entry point is now _otherfun instead of _main since
## _otherfun is now at the start of the __text section.
# RUN: llvm-objdump --macho --syms --all-headers %t.ordered.out \
# RUN: | FileCheck --check-prefix=OTHERENTRY %s
# OTHERENTRY: [[#%x, OTHERADDR:]] g F __TEXT,__text _otherfun
# OTHERENTRY: LC_MAIN
# OTHERENTRY-NEXT: cmdsize
# OTHERENTRY-NEXT: entryoff [[#%d, OTHERADDR - 0x100000000]]
## Test that the link succeeds with dead-stripping enabled too.
# RUN: %lld -dead_strip -lSystem %t/main.o -o %t/stripped.out
# RUN: llvm-objdump --macho --syms --section-headers %t/stripped.out > %t-stripped-dump.txt
# RUN: llvm-objdump --no-print-imm-hex --macho -d --no-symbolic-operands --no-show-raw-insn %t/stripped.out >> %t-stripped-dump.txt
# RUN: FileCheck --check-prefix=STRIP %s < %t-stripped-dump.txt
## -u 'section$start$*' does not cause an undefined symbol error. This matches ld64.
# RUN: %lld -dead_strip -lSystem %t/main.o -u 'section$start$__FOO$__notexist' -o %t/stripped1.out
# RUN: llvm-objdump --section-headers %t/stripped1.out | FileCheck --check-prefix=STRIP2 %s
## (Fun fact: `-e 'section$start$__TEXT$__text -dead_strip` strips
## everything in the text section because markLive runs well before
## section$start symbols are replaced, so the entry point is just
## an undefined symbol that keeps nothing alive, and then later it
## sets the entry point to the start of the now-empty text section
## and the output program crashes when running. This matches ld64's
## behavior.)
# STRIP-LABEL: Sections:
# STRIP-NEXT: Idx Name Size VMA Type
# STRIP-NEXT: 0 __text {{[0-9a-f]*}} [[#%x, TEXTSTART:]] TEXT
# STRIP-NEXT: 1 __cstring 00000000 [[#%x, CSTRINGSTART:]] DATA
# STRIP-NEXT: 2 __data 00000000
# STRIP-NEXT: 3 __llvm_orderfile 00000000
# STRIP-NEXT: 4 __mybss 00000000
# STRIP-NEXT: 5 __bar 00000000
# STRIP-NEXT: 6 __ever 00000000
# STRIP-NEXT: 7 __lookup 00000000
# STRIP-NEXT: 8 symbol 00000000
# STRIP-NEXT: 9 __quux 00000000
# STRIP-LABEL: SYMBOL TABLE:
# STRIP-NOT: section$start$__FOO$__bar
# STRIP-LABEL: _main:
# STRIP: [[#%x, PC1:]]:
# STRIP-SAME: leaq [[#%d, TEXTSTART - PC1 - 7]](%rip), %rax
# STRIP-NEXT: [[#%x, PC2:]]:
# STRIP-SAME: leaq [[#%d, CSTRINGSTART - PC2 - 7]](%rip), %rbx
# STRIP2-LABEL: Sections:
# STRIP2-NEXT: Idx Name Size VMA Type
# STRIP2-NEXT: 0 __text {{[0-9a-f]*}} [[#%x, TEXTSTART:]] TEXT
# STRIP2-NEXT: 1 __cstring 00000000 [[#%x, CSTRINGSTART:]] DATA
# STRIP2-NEXT: 2 __data 00000000
# STRIP2-NEXT: 3 __llvm_orderfile 00000000
# STRIP2-NEXT: 4 __mybss 00000000
# STRIP2-NEXT: 5 __bar 00000000
# STRIP2-NEXT: 6 __notexist 00000000
# STRIP2-NEXT: 7 __ever 00000000
# STRIP2-NEXT: 8 __lookup 00000000
# STRIP2-NEXT: 9 symbol 00000000
# STRIP2-NEXT: 10 __quux 00000000
# CHECK-LABEL: Sections:
# CHECK-NEXT: Idx Name Size VMA Type
# CHECK: 0 __text {{[0-9a-f]*}} [[#%x, TEXTSTART:]] TEXT
# CHECK: 1 __aftertext {{[0-9a-f]*}} [[#%x, TEXTEND:]]
# CHECK: 2 __cstring {{[0-9a-f]*}} [[#%x, CSTRINGSTART:]] DATA
# CHECK: 3 __aftercstring {{[0-9a-f]*}} [[#%x, CSTRINGEND:]]
# CHECK: 4 __data 00000008 [[#%x, DATASTART:]] DATA
# CHECK: 5 __llvm_orderfile 00000000 [[#%x, LLVMORDERFILESTART:]] DATA
# CHECK: 6 __mybss 00008000 [[#%x, MYBSSSTART:]] BSS
# CHECK: 7 __quux 0000002a [[#%x, QUUXSTART:]]
# CHECK: 8 __bar 00000059 [[#%x, BARSTART:]]
# CHECK: 9 __uflag_sect 00000000
# CHECK: 10 __lookup 00000000
# CHECK-NOT: symbol
# CHECK-NOT: __unref
# CHECK-LABEL: SYMBOL TABLE:
# CHECK-NOT: section$start$__TEXT$__text
# CHECK-NOT: section$end$__TEXT$__text
# CHECK-NOT: section$start$__TEXT$__cstring
# CHECK-NOT: section$end$__TEXT$__cstring
# CHECK-NOT: section$start$__DATA$__data
# CHECK-NOT: section$end$__DATA$__data
# CHECK-NOT: section$start$__DATA$__llvm_orderfile
# CHECK-NOT: section$end$__DATA$__llvm_orderfile
# CHECK-NOT: section$start$__DYNAMIC$__lookup
# CHECK-NOT: section$start$__DYNAMIC$__unref
# CHECK: section$end$ACTUAL$symbol
# CHECK: section$start$ACTUAL$symbol
# CHECK-LABEL: _main:
## The CHECK-SAMEs work around FileCheck's
## "error: numeric variable 'PC2' defined earlier in the same CHECK directive"
## limitation.
## The 7s are the length of a leaq instruction.
## section$start$__TEXT$__text / section$end$__TEXT$__text
# CHECK: [[#%x, PC1:]]:
# CHECK-SAME: leaq [[#%d, TEXTSTART - PC1 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC2:]]:
# CHECK-SAME: leaq [[#%d, TEXTEND - PC2 - 7]](%rip), %rbx
## section$start$__TEXT$__cstring / section$end$__TEXT$__cstring
# CHECK: [[#%x, PC3:]]:
# CHECK-SAME: leaq [[#%d, CSTRINGSTART - PC3 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC4:]]:
# CHECK-SAME: leaq [[#%d, CSTRINGEND - PC4 - 7]](%rip), %rbx
## section$start$__DATA$__data / section$end$__DATA$__data
# CHECK: [[#%x, PC5:]]:
# CHECK-SAME: leaq [[#%d, DATASTART - PC5 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC6:]]:
# CHECK-SAME: leaq [[#%d, DATASTART + 8 - PC6 - 7]](%rip), %rbx
## section$start$__MYBSS$__mybss / section$end$__MYBSS$__mybss
# CHECK: [[#%x, PC7:]]:
# CHECK-SAME: leaq [[#%d, MYBSSSTART - PC7 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC8:]]:
# CHECK-SAME: leaq [[#%d, MYBSSSTART + 0x8000 - PC8 - 7]](%rip), %rbx
## section$start$__DATA$__llvm_orderfile / section$end$__DATA$__llvm_orderfile
## This section has size 0.
# CHECK: [[#%x, PC9:]]:
# CHECK-SAME: leaq [[#%d, LLVMORDERFILESTART - PC9 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC10:]]:
# CHECK-SAME: leaq [[#%d, LLVMORDERFILESTART - PC10 - 7]](%rip), %rbx
## Section-rename tests.
## Input section __FOO/__bar is renamed to output section
## __BAZ/__quux by a -rename_section flag.
## section$start$__FOO$__bar ends up referring to the __BAZ/__quux section.
# CHECK: [[#%x, PC11:]]:
# CHECK-SAME: leaq [[#%d, QUUXSTART - PC11 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC12:]]:
# CHECK-SAME: leaq [[#%d, QUUXSTART + 42 - PC12 - 7]](%rip), %rbx
## section$start$__BAZ$__quux also refers to the __BAZ/__quux section.
# CHECK: [[#%x, PC13:]]:
# CHECK-SAME: leaq [[#%d, QUUXSTART - PC13 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC14:]]:
# CHECK-SAME: leaq [[#%d, QUUXSTART + 42 - PC14 - 7]](%rip), %rbx
## Input section __WHAT/__ever is renamed to output section
## __FOO/__bar by a -rename_section flag.
## section$start$__WHAT$__ever ends up referring to the __FOO/__bar section.
# CHECK: [[#%x, PC15:]]:
# CHECK-SAME: leaq [[#%d, BARSTART - PC15 - 7]](%rip), %rax
# CHECK-NEXT: [[#%x, PC16:]]:
# CHECK-SAME: leaq [[#%d, BARSTART + 89 - PC16 - 7]](%rip), %rbx
## The function_starts section should not have an entry for the
## section$end$__TEXT$__text symbol.
# CHECK: [[#%.16x, TEXTSTART]]
# CHECK-NOT: [[#%.16x, TEXTEND]]
###############################################################################
## Test segment$start and segment$end.
# RUN: %lld -lSystem %t/seg.o -o %t.seg.out \
# RUN: -rename_segment __FOO __BAZ \
# RUN: -rename_segment __WHAT __FOO \
# RUN: -u 'segment$start$__UFLAG_SEG' \
# RUN: -e 'segment$start$__TEXT'
# RUN: llvm-objdump --macho --syms %t.seg.out > %t-seg-dump.txt
## llvm-objdump can't dump segment names; use lld-otool for this.
# RUN: llvm-otool -l %t.seg.out | grep -A6 LC_SEGMENT >> %t-seg-dump.txt
# RUN: llvm-objdump --no-print-imm-hex --macho -d --no-symbolic-operands --no-show-raw-insn %t.seg.out >> %t-seg-dump.txt
# RUN: llvm-objdump --macho --function-starts %t.out >> %t-seg-dump.txt
# RUN: FileCheck %s --check-prefix=SEG < %t-seg-dump.txt
# SEG-LABEL: SYMBOL TABLE:
# SEG-NOT: segment$start$__TEXT
# SEG-NOT: segment$end$__TEXT
# SEG-NOT: segment$start$__FOO
# SEG-NOT: segment$end$__FOO
# SEG-NOT: segment$start$__BAZ
# SEG-NOT: segment$end$__BAZ
# SEG-NOT: segment$start$__WHAT
# SEG-NOT: segment$end$__WHAT
# SEG-NOT: segment$start$__UFLAG_SEG
# SEG-NOT: segment$start$__UFLAG_SEG
# SEG-DAG: segment$end$REGULAR
# SEG-DAG: segment$start$REGULAR
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname __PAGEZERO
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname __TEXT
# SEG-NEXT: vmaddr 0x[[#%x, TEXTSTART:]]
# SEG-NEXT: vmsize 0x[[#%x, TEXTSIZE:]]
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname __BAZ
# SEG-NEXT: vmaddr 0x[[#%x, BAZSTART:]]
# SEG-NEXT: vmsize 0x[[#%x, BAZSIZE:]]
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname __FOO
# SEG-NEXT: vmaddr 0x[[#%x, FOOSTART:]]
# SEG-NEXT: vmsize 0x[[#%x, FOOSIZE:]]
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname __UFLAG_SEG
# SEG-NEXT: vmaddr 0x[[#%x, UFLAGSTART:]]
# SEG-NEXT: vmsize 0x0000000000000000
# SEG: cmd LC_SEGMENT_64
# SEG-NEXT: cmdsize
# SEG-NEXT: segname ASDF
# SEG-NEXT: vmaddr 0x[[#%x, ASDFSTART:]]
# SEG-NEXT: vmsize 0x0000000000000000
# SEG: _main:
## segment$start$__TEXT / segment$end$__TEXT
# SEG: [[#%x, PC1:]]:
# SEG-SAME: leaq [[#%d, TEXTSTART - PC1 - 7]](%rip), %rax
# SEG-NEXT: [[#%x, PC2:]]:
# SEG-SAME: leaq [[#%d, TEXTSTART + TEXTSIZE - PC2 - 7]](%rip), %rbx
## segment$start$__FOO / segment$end$__FOO, which is renamed to __BAZ
# SEG: [[#%x, PC3:]]:
# SEG-SAME: leaq [[#%d, BAZSTART - PC3 - 7]](%rip), %rax
# SEG-NEXT: [[#%x, PC4:]]:
# SEG-SAME: leaq [[#%d, BAZSTART + BAZSIZE - PC4 - 7]](%rip), %rbx
## segment$start$__BAZ / segment$end$__BAZ
# SEG: [[#%x, PC5:]]:
# SEG-SAME: leaq [[#%d, BAZSTART - PC5 - 7]](%rip), %rax
# SEG-NEXT: [[#%x, PC6:]]:
# SEG-SAME: leaq [[#%d, BAZSTART + BAZSIZE - PC6 - 7]](%rip), %rbx
## segment$start$__WHAT / segment$end$__WHAT, which is renamed to __FOO
# SEG: [[#%x, PC7:]]:
# SEG-SAME: leaq [[#%d, FOOSTART - PC7 - 7]](%rip), %rax
# SEG-NEXT: [[#%x, PC8:]]:
# SEG-SAME: leaq [[#%d, FOOSTART + FOOSIZE - PC8 - 7]](%rip), %rbx
## segment$start$ASDF / segment$end$ASDF
# SEG: [[#%x, PC9:]]:
# SEG-SAME: leaq [[#%d, ASDFSTART - PC9 - 7]](%rip), %rax
# SEG-NEXT: [[#%x, PC10:]]:
# SEG-SAME: leaq [[#%d, ASDFSTART - PC10 - 7]](%rip), %rbx
#--- order.txt
_otherfun
_main
section$end$__TEXT$__text
section$start$__TEXT$__text
#--- main.s
.zerofill __MYBSS,__mybss,_zero_foo,0x8000
.globl section$start$ACTUAL$symbol
.globl section$end$ACTUAL$symbol
## Renamed to __BAZ,__quux by -rename_section
.section __FOO,__bar
.space 42
## Renamed to __FOO,__bar by -rename_section
.section __WHAT,__ever
.space 89
.text
.globl _main
_main:
# Basics: start/end of existing, normal sections.
# For __TEXT/__text, these magic symbols shouldn't be
# included in __function_starts
movq section$start$__TEXT$__text@GOTPCREL(%rip), %rax
movq section$end$__TEXT$__text@GOTPCREL(%rip), %rbx
# __TEXT/__cstring are interesting because they're not ConcatInputSections.
movq section$start$__TEXT$__cstring@GOTPCREL(%rip), %rax
movq section$end$__TEXT$__cstring@GOTPCREL(%rip), %rbx
# Vanilla __DATA/__data
movq section$start$__DATA$__data@GOTPCREL(%rip), %rax
movq section$end$__DATA$__data@GOTPCREL(%rip), %rbx
# Vanilla zerofill.
movq section$start$__MYBSS$__mybss@GOTPCREL(%rip), %rax
movq section$end$__MYBSS$__mybss@GOTPCREL(%rip), %rbx
# Referring to a non-existent section wills it into existence.
# This is needed for e.g. __DATA/__llvm_orderfile in libclang_rt.profile.
# This means `-u` can be used as a janky `-sectcreate`.
movq section$start$__DATA$__llvm_orderfile@GOTPCREL(%rip), %rax
movq section$end$__DATA$__llvm_orderfile@GOTPCREL(%rip), %rbx
# Section-rename tests.
movq section$start$__FOO$__bar@GOTPCREL(%rip), %rax
movq section$end$__FOO$__bar@GOTPCREL(%rip), %rbx
movq section$start$__BAZ$__quux@GOTPCREL(%rip), %rax
movq section$end$__BAZ$__quux@GOTPCREL(%rip), %rbx
movq section$start$__WHAT$__ever@GOTPCREL(%rip), %rax
movq section$end$__WHAT$__ever@GOTPCREL(%rip), %rbx
# If there are actual symbols with the magic names, the magic
# names lose their magic and just refer to those symbols (and
# no section is implicitly created for them).
movq section$start$ACTUAL$symbol@GOTPCREL(%rip), %rax
movq section$end$ACTUAL$symbol@GOTPCREL(%rip), %rbx
# -U section$start is not exported as dynamic_lookup, it just
# creates a section like -u.
movq section$start$__DYNAMIC$__lookup@GOTPCREL(%rip), %rax
movq section$end$__DYNAMIC$__lookup@GOTPCREL(%rip), %rbx
ret
.globl _otherfun
_otherfun:
ret
.section __TEXT,__aftertext
.fill 1
.cstring
.asciz "foo"
.asciz "barbaz"
.section __TEXT,__aftercstring
.fill 1
.data
.quad 0x1234
.subsections_via_symbols
#--- foo.s
.text
.globl section$start$ACTUAL$symbol
section$start$ACTUAL$symbol:
.fill 1
.globl section$end$ACTUAL$symbol
section$end$ACTUAL$symbol:
.fill 1
.subsections_via_symbols
#--- seg.s
## Renamed to __BAZ,__bar by -rename_segment
.section __FOO,__bar
.space 1
## Renamed to __FOO,__ever by -rename_segment
.section __WHAT,__ever
.space 1
.text
.globl segment$start$REGULAR
segment$start$REGULAR:
retq
.globl segment$end$REGULAR
segment$end$REGULAR:
retq
.globl _main
_main:
movq segment$start$__TEXT@GOTPCREL(%rip), %rax
movq segment$end$__TEXT@GOTPCREL(%rip), %rbx
movq segment$start$__FOO@GOTPCREL(%rip), %rax
movq segment$end$__FOO@GOTPCREL(%rip), %rbx
movq segment$start$__BAZ@GOTPCREL(%rip), %rax
movq segment$end$__BAZ@GOTPCREL(%rip), %rbx
# (These two lines make ld64 crash linking the .o file.
# The rest of the test works with ld64 too.)
movq segment$start$__WHAT@GOTPCREL(%rip), %rax
movq segment$end$__WHAT@GOTPCREL(%rip), %rbx
# References to non-existing segments create that segment,
# without any sections in it.
movq segment$start$ASDF@GOTPCREL(%rip), %rax
movq segment$end$ASDF@GOTPCREL(%rip), %rbx
# Non-undefined symbols don't create segments.
callq segment$start$REGULAR
callq segment$end$REGULAR
ret
.section __TEXT,__fill
.space 578
.subsections_via_symbols
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