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# REQUIRES: x86
# RUN: split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
## --randomize-section-padding= inserts segment offset padding and pre-section
## padding, and does not affect flags. Segment offset padding is only inserted
## when PT_LOAD changes, as shown by .bss size (.data and .bss share a PT_LOAD).
# RUN: ld.lld --randomize-section-padding=6 %t/a.o -o %t/a.out
# RUN: llvm-readelf -sS -x .rodata -x .text -x .data %t/a.out | FileCheck --check-prefix=PAD6 %s
# PAD6: .rodata PROGBITS 0000000000200158 000158 000b8d 00 A 0 0 1
# PAD6-NEXT: .text PROGBITS 0000000000201ce8 000ce8 000270 00 AX 0 0 4
# PAD6-NEXT: .data PROGBITS 0000000000202f58 000f58 000941 00 WA 0 0 1
# PAD6-NEXT: .bss NOBITS 0000000000203899 001899 000003 00 WA 0 0 1
# PAD6: 0000000000203899 0 NOTYPE LOCAL DEFAULT 4 a
# PAD6: 000000000020389a 0 NOTYPE LOCAL DEFAULT 4 b
# PAD6: 000000000020389b 0 NOTYPE LOCAL DEFAULT 4 c
# PAD6: Hex dump of section '.rodata':
# PAD6: 0x00200cd8 00000000 00000000 00000102 03
# PAD6: Hex dump of section '.text':
# PAD6: 0x00201f48 cccccccc cccccccc cccccccc 0405cc06
# PAD6: Hex dump of section '.data':
# PAD6: 0x00203888 00000000 00000000 00000000 00000708
# PAD6: 0x00203898 09
## Size of segment offset padding and location of pre-section padding is
## dependent on the seed.
# RUN: ld.lld --randomize-section-padding=46 %t/a.o -o %t/a.out
# RUN: llvm-readelf -sS -x .rodata -x .text -x .data %t/a.out | FileCheck --check-prefix=PAD46 %s
# PAD46: .rodata PROGBITS 0000000000200158 000158 000cc0 00 A 0 0 1
# PAD46-NEXT: .text PROGBITS 0000000000201e18 000e18 0009bf 00 AX 0 0 4
# PAD46-NEXT: .data PROGBITS 00000000002037d7 0017d7 000540 00 WA 0 0 1
# PAD46-NEXT: .bss NOBITS 0000000000203d17 001d17 000004 00 WA 0 0 1
# PAD46: 0000000000203d17 0 NOTYPE LOCAL DEFAULT 4 a
# PAD46: 0000000000203d18 0 NOTYPE LOCAL DEFAULT 4 b
# PAD46: 0000000000203d1a 0 NOTYPE LOCAL DEFAULT 4 c
# PAD46: Hex dump of section '.rodata':
# PAD46: 0x00200e08 00000000 00000000 00000000 00010203
# PAD46: Hex dump of section '.text':
# PAD46: 0x002027c8 cccccccc cccccccc cccccccc 040506
# PAD46: Hex dump of section '.data':
# PAD46: 0x00203d07 00000000 00000000 00000000 07000809
## When there are multiple InputSectionDescriptions for an output section,
## segment offset padding is inserted in the first InputSectionDescription.
# RUN: ld.lld --randomize-section-padding=46 %t/a.o %t/a.lds -o %t/a.out
# RUN: llvm-readelf -sS -x .rodata -x .text -x .data %t/a.out | FileCheck --check-prefix=PAD46-LDS %s
# PAD46-LDS: .rodata PROGBITS 0000000000000158 000158 000cc0 00 A 0 0 1
# PAD46-LDS-NEXT: .text PROGBITS 0000000000001000 001000 0009c0 00 AX 0 0 4
# PAD46-LDS-NEXT: .data PROGBITS 0000000000002000 002000 000540 00 WA 0 0 1
# PAD46-LDS-NEXT: .bss NOBITS 0000000000002540 002540 000004 00 WA 0 0 1
# PAD46-LDS: 0000000000002543 0 NOTYPE LOCAL DEFAULT 4 a
# PAD46-LDS: 0000000000002541 0 NOTYPE LOCAL DEFAULT 4 b
# PAD46-LDS: 0000000000002540 0 NOTYPE LOCAL DEFAULT 4 c
# PAD46-LDS: Hex dump of section '.rodata':
# PAD46-LDS: 0x00000e08 00000000 00000000 00000000 00030201 ................
# PAD46-LDS: Hex dump of section '.text':
# PAD46-LDS: 0x000019b0 cccccccc cccccccc cccc0605 04cccccc ................
# PAD46-LDS: Hex dump of section '.data':
# PAD46-LDS: 0x00002530 00000000 00000000 00000000 09000807 ................
#--- a.s
.section .rodata.a,"a",@progbits
.byte 1
.section .rodata.b,"a",@progbits
.byte 2
.section .rodata.c,"a",@progbits
.byte 3
.section .text.a,"ax",@progbits
.byte 4
.section .text.b,"ax",@progbits
.byte 5
.section .text.c,"ax",@progbits
.byte 6
.section .data.a,"aw",@progbits
.byte 7
.section .data.b,"aw",@progbits
.byte 8
.section .data.c,"aw",@progbits
.byte 9
.section .bss.a,"a",@nobits
a:
.zero 1
.section .bss.b,"a",@nobits
b:
.zero 1
.section .bss.c,"a",@nobits
c:
.zero 1
#--- a.lds
SECTIONS {
. = SIZEOF_HEADERS;
.rodata : { *(.rodata.c) *(.rodata.b) *(.rodata.a) }
. = ALIGN(CONSTANT(MAXPAGESIZE));
.text : { *(.text.c) *(.text.b) *(.text.a) }
. = ALIGN(CONSTANT(MAXPAGESIZE));
.data : { *(.data.c) *(.data.b) *(.data.a) }
.bss : { *(.bss.c) *(.bss.b) *(.bss.a) }
}
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