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llvm-project/lld/test/ELF/linkerscript/sizeof.s

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[ELF] - Linkerscript: implemented SIZEOF(section) SIZEOF(section) Return the size in bytes of the named section, if that section has been allocated. SIZEOF(section) often used in scripts. Few examples from the wild: https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld Patch implements it. Differential revision: https://reviews.llvm.org/D22915 llvm-svn: 277165
2016-07-30 00:18:47 +08:00
# REQUIRES: x86
[ELF][test] Improve llvm-objdump -t tests In many cases, llvm-nm or llvm-readelf is more suitable.
2020-03-05 00:17:35 +08:00
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
[ELF] - Linkerscript: implemented SIZEOF(section) SIZEOF(section) Return the size in bytes of the named section, if that section has been allocated. SIZEOF(section) often used in scripts. Few examples from the wild: https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld Patch implements it. Differential revision: https://reviews.llvm.org/D22915 llvm-svn: 277165
2016-07-30 00:18:47 +08:00
# RUN: echo "SECTIONS { \
# RUN: .aaa : { *(.aaa) } \
# RUN: .bbb : { *(.bbb) } \
# RUN: .ccc : { *(.ccc) } \
# RUN: _aaa = SIZEOF(.aaa); \
# RUN: _bbb = SIZEOF(.bbb); \
# RUN: _ccc = SIZEOF(.ccc); \
[ELF][test] Improve llvm-objdump -t tests In many cases, llvm-nm or llvm-readelf is more suitable.
2020-03-05 00:17:35 +08:00
# RUN: _ddd = SIZEOF(.not_exist); \
[ELF] - Linkerscript: implemented SIZEOF(section) SIZEOF(section) Return the size in bytes of the named section, if that section has been allocated. SIZEOF(section) often used in scripts. Few examples from the wild: https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld Patch implements it. Differential revision: https://reviews.llvm.org/D22915 llvm-svn: 277165
2016-07-30 00:18:47 +08:00
# RUN: }" > %t.script
[ELF][test] Improve llvm-objdump -t tests In many cases, llvm-nm or llvm-readelf is more suitable.
2020-03-05 00:17:35 +08:00
# RUN: ld.lld -T %t.script %t.o -o %t
# RUN: llvm-readelf -S -s %t | FileCheck %s
[ELF] - Linkerscript: implemented SIZEOF(section) SIZEOF(section) Return the size in bytes of the named section, if that section has been allocated. SIZEOF(section) often used in scripts. Few examples from the wild: https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld Patch implements it. Differential revision: https://reviews.llvm.org/D22915 llvm-svn: 277165
2016-07-30 00:18:47 +08:00
[ELF][test] Improve llvm-objdump -t tests In many cases, llvm-nm or llvm-readelf is more suitable.
2020-03-05 00:17:35 +08:00
# CHECK: Name Type Address Off Size
# CHECK: .aaa PROGBITS 0000000000000000 001000 000008
# CHECK-NEXT: .bbb PROGBITS 0000000000000008 001008 000010
# CHECK-NEXT: .ccc PROGBITS 0000000000000018 001018 000018
Allow SIZEOF() command on nonexistent section. Linker script doesn't create a section if it has no content. So the following script doesn't create .norelocs section if it doesn't have any .rel* sections. .norelocs : { *(.rel*) } Later, if you assert that the size of .norelocs is 0, LLD printed out an error message, because it didn't allow calling SIZEOF() on nonexistent sections. This patch allows SIZEOF() on nonexistent sections, so that you can do something like this. ASSERT(SIZEOF(.norelocs), "shouldn't contain .rel sections!") Note that this behavior is compatible with GNU. Differential Revision: https://reviews.llvm.org/D26810 llvm-svn: 287257
2016-11-18 04:27:10 +08:00
[ELF][test] Improve llvm-objdump -t tests In many cases, llvm-nm or llvm-readelf is more suitable.
2020-03-05 00:17:35 +08:00
# CHECK: Value Size Type Bind Vis Ndx Name
# CHECK: 0000000000000008 0 NOTYPE GLOBAL DEFAULT ABS _aaa
# CHECK-NEXT: 0000000000000010 0 NOTYPE GLOBAL DEFAULT ABS _bbb
# CHECK-NEXT: 0000000000000018 0 NOTYPE GLOBAL DEFAULT ABS _ccc
## SIZEOF(.not_exist) has a value of 0.
# CHECK-NEXT: 0000000000000000 0 NOTYPE GLOBAL DEFAULT ABS _ddd
[ELF] - Linkerscript: implemented SIZEOF(section) SIZEOF(section) Return the size in bytes of the named section, if that section has been allocated. SIZEOF(section) often used in scripts. Few examples from the wild: https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld Patch implements it. Differential revision: https://reviews.llvm.org/D22915 llvm-svn: 277165
2016-07-30 00:18:47 +08:00
.global _start
_start:
nop
.section .aaa,"a"
.quad 0
.section .bbb,"a"
.quad 0
.quad 0
.section .ccc,"a"
.quad 0
.quad 0
.quad 0