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

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Recommitted 266457 with fix: * Do script driven layout only if SECTIONS section exist. Initial commit message: [ELF] - Implemented basic location counter support. This patch implements location counter support. It also separates assign addresses for sections to assignAddressesScript() if it scipt exists. Main testcase is test/ELF/linkerscript-locationcounter.s, It contains some work with location counter. It is basic now. Implemented location counter assignment and '+' operations. Patch by myself with LOTS of comments and design suggestions from Rui Ueyama. Differential revision: http://reviews.llvm.org/D18499 llvm-svn: 266526
2016-04-16 18:10:32 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: echo "SECTIONS {}" > %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
Start linker scripts at 0. We were implicitly creating space for the headers. That is not the behaviour of bfd, which requires the script to use SIZEOF_HEADERS. The difference is important for scripts that don't use SIZEOF_HEADERS and expect the first section to be at 0. llvm-svn: 282818
2016-09-30 08:16:11 +08:00
# CHECK-NEXT: 1 .text 00000001 0000000000000000 TEXT DATA
# CHECK-NEXT: 2 .foo 00000004 0000000000000001 DATA
# CHECK-NEXT: 3 .boo 00000004 0000000000000005 DATA
Recommitted 266457 with fix: * Do script driven layout only if SECTIONS section exist. Initial commit message: [ELF] - Implemented basic location counter support. This patch implements location counter support. It also separates assign addresses for sections to assignAddressesScript() if it scipt exists. Main testcase is test/ELF/linkerscript-locationcounter.s, It contains some work with location counter. It is basic now. Implemented location counter assignment and '+' operations. Patch by myself with LOTS of comments and design suggestions from Rui Ueyama. Differential revision: http://reviews.llvm.org/D18499 llvm-svn: 266526
2016-04-16 18:10:32 +08:00
.global _start
_start:
nop
.section .foo, "a"
foo:
.long 0
.section .boo, "a"
boo:
.long 0