zig/deps/lld/test/ELF/linkerscript/align.s
2018-01-17 17:29:21 -05:00

126 lines
5.3 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
## Check that ALIGN command workable using location counter
# RUN: echo "SECTIONS { \
# RUN: . = 0x10000; \
# RUN: .aaa : { *(.aaa) } \
# RUN: . = ALIGN(4096); \
# RUN: .bbb : { *(.bbb) } \
# RUN: . = ALIGN(4096 * 4); \
# RUN: .ccc : { *(.ccc) } \
# RUN: }" > %t.script
# RUN: ld.lld -o %t1 --script %t.script %t
# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
## Check that the two argument version of ALIGN command works
# RUN: echo "SECTIONS { \
# RUN: . = ALIGN(0x1234, 0x10000); \
# RUN: .aaa : { *(.aaa) } \
# RUN: . = ALIGN(., 4096); \
# RUN: .bbb : { *(.bbb) } \
# RUN: . = ALIGN(., 4096 * 4); \
# RUN: .ccc : { *(.ccc) } \
# RUN: }" > %t.script
# RUN: ld.lld -o %t1 --script %t.script %t
# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
# CHECK: Sections:
# CHECK-NEXT: Idx Name Size Address Type
# CHECK-NEXT: 0 00000000 0000000000000000
# CHECK-NEXT: 1 .aaa 00000008 0000000000010000 DATA
# CHECK-NEXT: 2 .bbb 00000008 0000000000011000 DATA
# CHECK-NEXT: 3 .ccc 00000008 0000000000014000 DATA
## Check output sections ALIGN modificator
# RUN: echo "SECTIONS { \
# RUN: . = 0x10000; \
# RUN: .aaa : { *(.aaa) } \
# RUN: .bbb : ALIGN(4096) { *(.bbb) } \
# RUN: .ccc : ALIGN(4096 * 4) { *(.ccc) } \
# RUN: }" > %t2.script
# RUN: ld.lld -o %t2 --script %t2.script %t
# RUN: llvm-objdump -section-headers %t2 | FileCheck %s
## Check use of variables in align expressions:
# RUN: echo "VAR = 0x1000; \
# RUN: __code_base__ = 0x10000; \
# RUN: SECTIONS { \
# RUN: . = __code_base__; \
# RUN: .aaa : { *(.aaa) } \
# RUN: .bbb : ALIGN(VAR) { *(.bbb) } \
# RUN: . = ALIGN(., VAR * 4); \
# RUN: .ccc : { *(.ccc) } \
# RUN: __start_bbb = ADDR(.bbb); \
# RUN: __end_bbb = ALIGN(__start_bbb + SIZEOF(.bbb), VAR); \
# RUN: }" > %t3.script
# RUN: ld.lld -o %t3 --script %t3.script %t
# RUN: llvm-objdump -section-headers %t3 | FileCheck %s
# RUN: llvm-objdump -t %t3 | FileCheck -check-prefix SYMBOLS %s
# SYMBOLS-LABEL: SYMBOL TABLE:
# SYMBOLS-NEXT: 0000000000000000 *UND* 00000000
# SYMBOLS-NEXT: 0000000000014008 .text 00000000 _start
# SYMBOLS-NEXT: 0000000000010000 *ABS* 00000000 __code_base__
# SYMBOLS-NEXT: 0000000000001000 *ABS* 00000000 VAR
# SYMBOLS-NEXT: 0000000000011000 .bbb 00000000 __start_bbb
# SYMBOLS-NEXT: 0000000000012000 .bbb 00000000 __end_bbb
## Check that ALIGN zero do nothing and does not crash #1.
# RUN: echo "SECTIONS { . = ALIGN(0x123, 0); .aaa : { *(.aaa) } }" > %t.script
# RUN: ld.lld -o %t4 --script %t.script %t
# RUN: llvm-objdump -section-headers %t4 | FileCheck %s -check-prefix=ZERO
# ZERO: Sections:
# ZERO-NEXT: Idx Name Size Address Type
# ZERO-NEXT: 0 00000000 0000000000000000
# ZERO-NEXT: 1 .aaa 00000008 0000000000000123 DATA
## Check that ALIGN zero do nothing and does not crash #2.
# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(0); .aaa : { *(.aaa) } }" > %t.script
# RUN: ld.lld -o %t5 --script %t.script %t
# RUN: llvm-objdump -section-headers %t5 | FileCheck %s -check-prefix=ZERO
## Test we fail gracefuly when alignment value is not a power of 2 (#1).
# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(0x123, 3); .aaa : { *(.aaa) } }" > %t.script
# RUN: not ld.lld -o %t6 --script %t.script %t 2>&1 | FileCheck -check-prefix=ERR %s
# ERR: {{.*}}.script:1: alignment must be power of 2
## Test we fail gracefuly when alignment value is not a power of 2 (#2).
# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(3); .aaa : { *(.aaa) } }" > %t.script
# RUN: not ld.lld -o %t7 --script %t.script %t 2>&1 | FileCheck -check-prefix=ERR %s
# RUN: echo "SECTIONS { \
# RUN: . = 0xff8; \
# RUN: .aaa : { \
# RUN: *(.aaa) \
# RUN: foo = ALIGN(., 0x100); \
# RUN: bar = .; \
# RUN: zed1 = ALIGN(., 0x100) + 1; \
# RUN: zed2 = ALIGN(., 0x100) - 1; \
# RUN: } \
# RUN: .bbb : { *(.bbb); } \
# RUN: .ccc : { *(.ccc); } \
# RUN: .text : { *(.text); } \
# RUN: }" > %t.script
# RUN: ld.lld -o %t1 --script %t.script %t
# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=OFFSET %s
# OFFSET: 0000000000001000 .aaa 00000000 foo
# OFFSET: 0000000000001000 .aaa 00000000 bar
# OFFSET: 0000000000001001 .aaa 00000000 zed1
# OFFSET: 0000000000000fff .aaa 00000000 zed2
.global _start
_start:
nop
.section .aaa, "a"
.quad 0
.section .bbb, "a"
.quad 0
.section .ccc, "a"
.quad 0