derek.holloway
7502bf64a4
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224 lines
11 KiB
ArmAsm
224 lines
11 KiB
ArmAsm
# REQUIRES: x86
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## Test the placement of .lrodata, .lbss, .ldata, and their -fdata-sections variants.
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## See also section-layout.s.
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 --defsym=BSS=1 a.s -o a.o
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# RUN: ld.lld --section-start=.note=0x200300 a.o -o a
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# RUN: llvm-readelf -S -l -sX a | FileCheck %s
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# RUN: llvm-mc -filetype=obj -triple=x86_64 a.s -o a1.o
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# RUN: ld.lld --section-start=.note=0x200300 a1.o -o a1
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# RUN: llvm-readelf -S -sX a1 | FileCheck %s --check-prefix=CHECK1
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# RUN: ld.lld -T b.lds -z norelro a.o -z lrodata-after-bss -z nolrodata-after-bss -o b --fatal-warnings
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# RUN: llvm-readelf -S -l b | FileCheck %s --check-prefix=CHECK2
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# RUN: ld.lld --section-start=.note=0x200300 a.o -z lrodata-after-bss -o a3
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# RUN: llvm-readelf -S -l -sX a3 | FileCheck %s --check-prefix=CHECK3
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# RUN: llvm-mc -filetype=obj -triple=x86_64 c.s -o c.o
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# RUN: ld.lld c.o -o c
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# RUN: llvm-readelf -S -l c | FileCheck %s --check-prefix=CHECK4
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# RUN: llvm-mc -filetype=obj -triple=x86_64 d.s -o d.o
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# RUN: ld.lld d.o -z keep-text-section-prefix -o d
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# RUN: llvm-readelf -S d | FileCheck %s --check-prefix=CHECK5
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# CHECK: Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK-NEXT: NULL 0000000000000000 000000 000000 00 0 0 0
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# CHECK-NEXT: .note NOTE 0000000000200300 000300 000001 00 A 0 0 1
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# CHECK-NEXT: .lrodata PROGBITS 0000000000200301 000301 000002 00 Al 0 0 1
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# CHECK-NEXT: .rodata PROGBITS 0000000000200303 000303 000001 00 A 0 0 1
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# CHECK-NEXT: .text PROGBITS 0000000000201304 000304 000001 00 AX 0 0 4
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# CHECK-NEXT: .tdata PROGBITS 0000000000202305 000305 000001 00 WAT 0 0 1
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# CHECK-NEXT: .tbss NOBITS 0000000000202306 000306 000002 00 WAT 0 0 1
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# CHECK-NEXT: .relro_padding NOBITS 0000000000202306 000306 000cfa 00 WA 0 0 1
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# CHECK-NEXT: .data PROGBITS 0000000000203306 000306 000001 00 WA 0 0 1
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# CHECK-NEXT: .bss NOBITS 0000000000203307 000307 001800 00 WA 0 0 1
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## We spend size(.bss) % MAXPAGESIZE bytes for .bss.
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# CHECK-NEXT: .ldata PROGBITS 0000000000205b07 000b07 000002 00 WAl 0 0 1
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# CHECK-NEXT: .ldata2 PROGBITS 0000000000205b09 000b09 000001 00 WAl 0 0 1
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# CHECK-NEXT: .lbss NOBITS 0000000000205b0a 000b0a 001201 00 WAl 0 0 1
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# CHECK-NEXT: .comment PROGBITS 0000000000000000 000b0a {{.*}} 01 MS 0 0 1
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# CHECK: Program Headers:
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# CHECK-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
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# CHECK-NEXT: PHDR 0x000040 0x0000000000200040 0x0000000000200040 {{.*}} {{.*}} R 0x8
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# CHECK-NEXT: LOAD 0x000000 0x0000000000200000 0x0000000000200000 0x000304 0x000304 R 0x1000
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# CHECK-NEXT: LOAD 0x000304 0x0000000000201304 0x0000000000201304 0x000001 0x000001 R E 0x1000
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# CHECK-NEXT: LOAD 0x000305 0x0000000000202305 0x0000000000202305 0x000001 0x000cfb RW 0x1000
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# CHECK-NEXT: LOAD 0x000306 0x0000000000203306 0x0000000000203306 0x000001 0x001801 RW 0x1000
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# CHECK-NEXT: LOAD 0x000b07 0x0000000000205b07 0x0000000000205b07 0x000003 0x001204 RW 0x1000
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# CHECK: 0000000000201304 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _start
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# CHECK-NEXT: 0000000000201305 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _etext
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# CHECK-NEXT: 0000000000203307 0 NOTYPE GLOBAL DEFAULT [[#]] (.data) _edata
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# CHECK-NEXT: 0000000000206d0b 0 NOTYPE GLOBAL DEFAULT [[#]] (.lbss) _end
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# CHECK1: .data PROGBITS 0000000000203306 000306 000001 00 WA 0 0 1
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# CHECK1-NEXT: .ldata PROGBITS 0000000000203307 000307 000002 00 WAl 0 0 1
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# CHECK1-NEXT: .ldata2 PROGBITS 0000000000203309 000309 000001 00 WAl 0 0 1
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# CHECK1-NEXT: .comment PROGBITS 0000000000000000 00030a {{.*}} 01 MS 0 0 1
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# CHECK1: 0000000000201304 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _start
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# CHECK1-NEXT: 0000000000201305 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _etext
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# CHECK1-NEXT: 0000000000203307 0 NOTYPE GLOBAL DEFAULT [[#]] (.data) _edata
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# CHECK1-NEXT: 000000000020330a 0 NOTYPE GLOBAL DEFAULT [[#]] (.ldata2) _end
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# CHECK2: .note NOTE 0000000000200300 000300 000001 00 A 0 0 1
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# CHECK2-NEXT: .lrodata PROGBITS 0000000000200301 000301 000001 00 Al 0 0 1
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## With a SECTIONS command, we suppress the default rule placing .lrodata.* into .lrodata.
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# CHECK2-NEXT: .lrodata.1 PROGBITS 0000000000200302 000302 000001 00 Al 0 0 1
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# CHECK2-NEXT: .rodata PROGBITS 0000000000200303 000303 000001 00 A 0 0 1
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# CHECK2-NEXT: .text PROGBITS 0000000000200304 000304 000001 00 AX 0 0 4
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# CHECK2-NEXT: .tdata PROGBITS 0000000000200305 000305 000001 00 WAT 0 0 1
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# CHECK2-NEXT: .tbss NOBITS 0000000000200306 000306 000001 00 WAT 0 0 1
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# CHECK2-NEXT: .tbss.1 NOBITS 0000000000200307 000306 000001 00 WAT 0 0 1
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# CHECK2-NEXT: .data PROGBITS 0000000000200306 000306 000001 00 WA 0 0 1
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# CHECK2-NEXT: .bss NOBITS 0000000000200307 000307 001800 00 WA 0 0 1
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# CHECK2-NEXT: .ldata PROGBITS 0000000000201b07 001b07 000002 00 WAl 0 0 1
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# CHECK2-NEXT: .ldata2 PROGBITS 0000000000201b09 001b09 000001 00 WAl 0 0 1
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# CHECK2-NEXT: .lbss NOBITS 0000000000201b0a 001b0a 001201 00 WAl 0 0 1
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# CHECK2-NEXT: .comment PROGBITS 0000000000000000 001b0a {{.*}} 01 MS 0 0 1
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# CHECK2: Program Headers:
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# CHECK2-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
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# CHECK2-NEXT: PHDR 0x000040 0x0000000000200040 0x0000000000200040 {{.*}} {{.*}} R 0x8
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# CHECK2-NEXT: LOAD 0x000000 0x0000000000200000 0x0000000000200000 0x000304 0x000304 R 0x1000
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# CHECK2-NEXT: LOAD 0x000304 0x0000000000200304 0x0000000000200304 0x000001 0x000001 R E 0x1000
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# CHECK2-NEXT: LOAD 0x000305 0x0000000000200305 0x0000000000200305 0x001805 0x002a06 RW 0x1000
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# CHECK2-NEXT: TLS 0x000305 0x0000000000200305 0x0000000000200305 0x000001 0x000003 R 0x1
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# CHECK3: Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK3-NEXT: NULL 0000000000000000 000000 000000 00 0 0 0
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# CHECK3-NEXT: .note NOTE 0000000000200300 000300 000001 00 A 0 0 1
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# CHECK3-NEXT: .rodata PROGBITS 0000000000200301 000301 000001 00 A 0 0 1
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# CHECK3-NEXT: .text PROGBITS 0000000000201304 000304 000001 00 AX 0 0 4
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# CHECK3-NEXT: .tdata PROGBITS 0000000000202305 000305 000001 00 WAT 0 0 1
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# CHECK3-NEXT: .tbss NOBITS 0000000000202306 000306 000002 00 WAT 0 0 1
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# CHECK3-NEXT: .relro_padding NOBITS 0000000000202306 000306 000cfa 00 WA 0 0 1
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# CHECK3-NEXT: .data PROGBITS 0000000000203306 000306 000001 00 WA 0 0 1
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# CHECK3-NEXT: .bss NOBITS 0000000000203307 000307 001800 00 WA 0 0 1
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## We spend (size(.bss) + size(.lbss)) % MAXPAGESIZE bytes.
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# CHECK3-NEXT: .lbss NOBITS 0000000000204b07 000307 001201 00 WAl 0 0 1
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# CHECK3-NEXT: .lrodata PROGBITS 0000000000206d08 000d08 000002 00 Al 0 0 1
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# CHECK3-NEXT: .ldata PROGBITS 0000000000207d0a 000d0a 000002 00 WAl 0 0 1
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# CHECK3-NEXT: .ldata2 PROGBITS 0000000000207d0c 000d0c 000001 00 WAl 0 0 1
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# CHECK3-NEXT: .comment PROGBITS 0000000000000000 000d0d {{.*}} 01 MS 0 0 1
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# CHECK3: Program Headers:
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# CHECK3-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
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# CHECK3-NEXT: PHDR 0x000040 0x0000000000200040 0x0000000000200040 {{.*}} {{.*}} R 0x8
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# CHECK3-NEXT: LOAD 0x000000 0x0000000000200000 0x0000000000200000 0x000302 0x000302 R 0x1000
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# CHECK3-NEXT: LOAD 0x000304 0x0000000000201304 0x0000000000201304 0x000001 0x000001 R E 0x1000
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# CHECK3-NEXT: LOAD 0x000305 0x0000000000202305 0x0000000000202305 0x000001 0x000cfb RW 0x1000
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# CHECK3-NEXT: LOAD 0x000306 0x0000000000203306 0x0000000000203306 0x000001 0x002a02 RW 0x1000
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# CHECK3-NEXT: LOAD 0x000d08 0x0000000000206d08 0x0000000000206d08 0x000002 0x000002 R 0x1000
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# CHECK3-NEXT: LOAD 0x000d0a 0x0000000000207d0a 0x0000000000207d0a 0x000003 0x000003 RW 0x1000
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# CHECK3-NEXT: TLS 0x000305 0x0000000000202305 0x0000000000202305 0x000001 0x000003 R 0x1
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# CHECK3: 0000000000201304 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _start
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# CHECK3-NEXT: 0000000000201305 0 NOTYPE GLOBAL DEFAULT [[#]] (.text) _etext
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# CHECK3-NEXT: 0000000000203307 0 NOTYPE GLOBAL DEFAULT [[#]] (.data) _edata
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# CHECK3-NEXT: 0000000000207d0d 0 NOTYPE GLOBAL DEFAULT [[#]] (.ldata2) _end
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# CHECK4: .note NOTE
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# CHECK4-NEXT: .ltext PROGBITS
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# CHECK4-NEXT: .lrodata PROGBITS
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# CHECK4-NEXT: .rodata PROGBITS
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# CHECK4-NEXT: .text PROGBITS
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# CHECK4-NEXT: .data PROGBITS
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# CHECK4-NEXT: .bss NOBITS
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# CHECK4-NEXT: .ldata PROGBITS
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# CHECK4-NEXT: .lbss NOBITS
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# CHECK4-NEXT: .ltext_w PROGBITS
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# CHECK4-NEXT: .comment PROGBITS
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## .ltext.hot and .ltext.unlikely are kept separate with -z keep-text-section-prefix.
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# CHECK5: .ltext.hot PROGBITS
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# CHECK5-NEXT: .ltext.unlikely PROGBITS
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# CHECK5-NEXT: .ltext PROGBITS
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# CHECK5: .text.hot PROGBITS
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# CHECK5-NEXT: .text.unlikely PROGBITS
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#--- a.s
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.globl _start, _etext, _edata, _end
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_start:
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ret
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.section .note,"a",@note; .space 1
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.section .rodata,"a",@progbits; .space 1
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.section .data,"aw",@progbits; .space 1
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.ifdef BSS
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## .bss is large than one MAXPAGESIZE to test file offsets.
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.section .bss,"aw",@nobits; .space 0x1800
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.endif
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.section .tdata,"awT",@progbits; .space 1
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.section .tbss,"awT",@nobits; .space 1
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.section .tbss.1,"awT",@nobits; .space 1
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.section .lrodata,"al"; .space 1
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.section .lrodata.1,"al"; .space 1
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.section .ldata,"awl"; .space 1
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## Input .ldata.rel.ro sections are placed in the output .ldata section.
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.section .ldata.rel.ro,"awl"; .space 1
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.ifdef BSS
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.section .lbss,"awl",@nobits; .space 0x1200
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## Input .lbss.rel.ro sections are placed in the output .lbss section.
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.section .lbss.rel.ro,"awl",@nobits; .space 1
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.endif
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.section .ldata2,"awl"; .space 1
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#--- b.lds
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SECTIONS {
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. = 0x200300;
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.rodata : {}
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.text : {}
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.data : {}
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.bss : {}
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.ldata : { *(.ldata .ldata.*) }
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.ldata2 : {}
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.lbss : { *(.lbss .lbss.*) }
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}
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#--- c.s
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## Test .ltext layout. .ltext.1 should be merged into .ltext.
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.section .ltext,"axl",@progbits
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.globl f
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f:
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ret
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.section .ltext.1,"axl",@progbits
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.globl f1
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f1:
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ret
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.section .ltext_w,"awxl",@progbits
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.globl g
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g:
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ret
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.section .text,"ax",@progbits
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.globl h
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h:
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ret
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.section .note,"a",@note; .space 1
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.section .rodata,"a",@progbits; .space 1
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.section .data,"aw",@progbits; .space 1
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.section .bss,"aw",@nobits; .space 1
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.section .lrodata,"al"; .space 1
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.section .ldata,"awl"; .space 1
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.section .lbss,"awl",@nobits; .space 1
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#--- d.s
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## Test -z keep-text-section-prefix with .ltext
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.section .ltext.hot.f1,"axl",@progbits; ret
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.section .ltext.unlikely.f2,"axl",@progbits; ret
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.section .ltext.f3,"axl",@progbits; ret
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.section .text.hot.f4,"ax",@progbits; ret
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.section .text.unlikely.f5,"ax",@progbits; ret
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.section .text.f6,"ax",@progbits; ret
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