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1# REQUIRES: x862# RUN: rm -rf %t; split-file %s %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/foo1.s -o %t/foo1.o4# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/foo2.s -o %t/foo2.o5# RUN: %lld -dylib --icf=all -framework CoreFoundation %t/foo1.o %t/foo2.o -o %t/foo6# RUN: llvm-objdump --no-print-imm-hex --macho --rebase --bind --syms -d %t/foo | FileCheck %s --check-prefixes=CHECK,LITERALS7# RUN: %lld -dylib -framework CoreFoundation %t/foo1.o %t/foo2.o -o %t/foo8# RUN: llvm-objdump --no-print-imm-hex --macho --rebase --bind --syms -d %t/foo | FileCheck %s --check-prefix=LITERALS9 10# Check that string deduplication for symbol names is working11# RUN: %lld -dylib -framework CoreFoundation %t/foo1.o %t/foo2.o -o %t/foo_no_dedup -no-deduplicate-symbol-strings12# RUN: llvm-strings %t/foo | FileCheck %s --check-prefix=CHECK-DEDUP13# RUN: llvm-strings %t/foo_no_dedup | FileCheck %s --check-prefix=CHECK-NO-DEDUP14# CHECK-DEDUP: _named_cfstring15# CHECK-DEDUP-NOT: _named_cfstring16# CHECK-NO-DEDUP: _named_cfstring17# CHECK-NO-DEDUP: _named_cfstring18# CHECK-NO-DEDUP-NOT: _named_cfstring19 20 21# CHECK: (__TEXT,__text) section22# CHECK-NEXT: _foo1:23# CHECK-NEXT: _foo2:24# CHECK-NEXT: movq _named_cfstring(%rip), %rax25# CHECK-NEXT: _foo1_utf16:26# CHECK-NEXT: movq [[#]](%rip), %rax27# CHECK-NEXT: _named_foo1:28# CHECK-NEXT: _named_foo2:29# CHECK-NEXT: movq _named_cfstring(%rip), %rax30# CHECK-NEXT: _foo2_utf16:31# CHECK-NEXT: movq [[#]](%rip), %rax32 33# CHECK: SYMBOL TABLE:34# CHECK-DAG: [[#%.16x,FOO:]] g F __TEXT,__text _foo135# CHECK-DAG: [[#FOO]] g F __TEXT,__text _foo236 37## Make sure we don't emit redundant bind / rebase opcodes for folded sections.38# LITERALS: Rebase table:39# LITERALS-NEXT: segment section address type40# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer41# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer42# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer43# LITERALS-EMPTY:44# LITERALS-NEXT: Bind table:45# LITERALS-NEXT: segment section address type addend dylib symbol46# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer 0 CoreFoundation ___CFConstantStringClassReference47# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer 0 CoreFoundation ___CFConstantStringClassReference48# LITERALS-NEXT: __DATA_CONST __cfstring {{.*}} pointer 0 CoreFoundation ___CFConstantStringClassReference49# LITERALS-EMPTY:50 51#--- foo1.s52.cstring53L_.str.0:54 .asciz "bar"55## This string is at a different offset than the corresponding "foo" string in56## foo2.s. Make sure that we treat references to either string as equivalent.57L_.str:58 .asciz "foo"59 60.section __DATA,__cfstring61.p2align 362L__unnamed_cfstring_:63 .quad ___CFConstantStringClassReference64 .long 1992 ## utf-865 .space 466 .quad L_.str67 .quad 3 ## strlen68 69_named_cfstring:70 .quad ___CFConstantStringClassReference71 .long 1992 ## utf-872 .space 473 .quad L_.str74 .quad 3 ## strlen75 76.section __TEXT,__ustring77l_.ustr:78 .short 102 ## f79 .short 111 ## o80 .short 0 ## \081 .short 111 ## o82 .short 0 ## \083 84## FIXME: We should be able to deduplicate UTF-16 CFStrings too.85## Note that this string contains a null byte in the middle -- any dedup code86## we add should take care to handle this correctly.87## Technically, UTF-8 should support encoding null bytes too, but since we88## atomize the __cstring section at every null byte, this isn't supported. ld6489## doesn't support it either, and clang seems to always emit a UTF-16 CFString90## if it needs to contain a null, so I think we're good here.91.section __DATA,__cfstring92.p2align 393L__unnamed_cfstring_.2:94 .quad ___CFConstantStringClassReference95 .long 2000 ## utf-1696 .space 497 .quad l_.ustr98 .quad 4 ## strlen99 100.text101.globl _foo1, _foo1_utf16, _named_foo1102_foo1:103 movq L__unnamed_cfstring_(%rip), %rax104 105_foo1_utf16:106 movq L__unnamed_cfstring_.2(%rip), %rax107 108_named_foo1:109 movq _named_cfstring(%rip), %rax110 111.subsections_via_symbols112 113#--- foo2.s114.cstring115L_.str:116 .asciz "foo"117 118.section __DATA,__cfstring119.p2align 3120L__unnamed_cfstring_:121 .quad ___CFConstantStringClassReference122 .long 1992 ## utf-8123 .space 4124 .quad L_.str125 .quad 3 ## strlen126 127_named_cfstring:128 .quad ___CFConstantStringClassReference129 .long 1992 ## utf-8130 .space 4131 .quad L_.str132 .quad 3 ## strlen133 134.section __TEXT,__ustring135 .p2align 1136l_.ustr:137 .short 102 ## f138 .short 111 ## o139 .short 0 ## \0140 .short 111 ## o141 .short 0 ## \0142 143.section __DATA,__cfstring144.p2align 3145L__unnamed_cfstring_.2:146 .quad ___CFConstantStringClassReference147 .long 2000 ## utf-16148 .space 4149 .quad l_.ustr150 .quad 4 ## strlen151 152.text153.globl _foo2, _foo2_utf16, _named_foo2154_foo2:155 movq L__unnamed_cfstring_(%rip), %rax156 157_foo2_utf16:158 movq L__unnamed_cfstring_.2(%rip), %rax159 160_named_foo2:161 movq _named_cfstring(%rip), %rax162 163.subsections_via_symbols164