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llvm-project/lld/test/ELF/linkerscript/orphan-align.s

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Don't move orphan sections past assignments. This fixes a case where we would produce an unaligned PT_LOAD. llvm-svn: 282180
2016-09-23 02:05:49 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: echo "SECTIONS { \
Don't depend on lld creating space for the headers. Currently lld will implicitly reserve space for the headers. This is not the case is bfd, where it is the script responsibility to use SIZEOF_HEADERS. This means that a script not using SIZEOF_HEADERS and expecting the address of the first section to be 0 would fail with lld. I am fixing that is the next commit. This one just makes the tests explicitly use SIZEOF_HEADERS to avoid the dependency on the current behaviour. llvm-svn: 282814
2016-09-30 08:06:24 +08:00
# RUN: . = SIZEOF_HEADERS; \
Don't move orphan sections past assignments. This fixes a case where we would produce an unaligned PT_LOAD. llvm-svn: 282180
2016-09-23 02:05:49 +08:00
# RUN: .text : { *(.text) } \
# RUN: . = ALIGN(0x1000); \
# RUN: .data.rel.ro : { *(.data.rel.ro) } \
Remove extra \ Should fix the windows bots. llvm-svn: 282181
2016-09-23 02:36:46 +08:00
# RUN: }" > %t.script
[ELF] Create readonly PT_LOAD in the presence of a SECTIONS command This essentially drops the change by r288021 (discussed with Georgii Rymar and Peter Smith and noted down in the release note of lld 10). GNU ld>=2.31 enables -z separate-code by default for Linux x86. By default (in the absence of a PHDRS command) a readonly PT_LOAD is created, which is different from its traditional behavior. Not emulating GNU ld's traditional behavior is good for us because it improves code consistency (we create a readonly PT_LOAD in the absence of a SECTIONS command). Users can add --no-rosegment to restore the previous behavior (combined readonly and read-executable sections in a single RX PT_LOAD).
2020-03-20 08:15:33 +08:00
# RUN: ld.lld -o %t -T %t.script %t.o -shared --no-rosegment
Don't move orphan sections past assignments. This fixes a case where we would produce an unaligned PT_LOAD. llvm-svn: 282180
2016-09-23 02:05:49 +08:00
# RUN: llvm-readobj -l %t | FileCheck %s
# Test that the orphan section foo is placed before the ALIGN and so the second
# PT_LOAD is aligned.
# CHECK: Type: PT_LOAD
# CHECK-NEXT: Offset: 0x0
# CHECK: Type: PT_LOAD
# CHECK-NEXT: Offset: 0x1000
nop
.section .data.rel.ro, "aw"
.byte 0
.section foo, "ax"
nop