Magic-Mirror/llvm-capstone
1
0
Fork 0
mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2025-01-07 16:42:34 +00:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

[ELF][test] Reorganize warn-backrefs.s

Browse Source
This commit is contained in:
Fangrui Song 2020-04-05 09:25:00 -07:00
parent e01ec11882
commit 26e6880434
1 changed files with 31 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
lld/test/ELF/warn-backrefs.s
View File

@ -1,47 +1,49 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
# RUN: echo ".globl foo; foo:" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t2.o
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t1.o
# RUN: echo '.globl foo; foo:' | llvm-mc -filetype=obj -triple=x86_64 - -o %t2.o
# RUN: rm -f %t2.a
# RUN: llvm-ar rcs %t2.a %t2.o
# RUN: ld.lld --fatal-warnings -o %t.exe %t1.o %t2.a
# RUN: ld.lld --fatal-warnings -o %t.exe %t2.a %t1.o
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe %t1.o %t2.a
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe %t1.o --start-lib %t2.o --end-lib
## A forward reference is accepted by a traditional Unix linker.
# RUN: ld.lld --fatal-warnings %t1.o %t2.a -o /dev/null
# RUN: ld.lld --fatal-warnings --warn-backrefs %t1.o %t2.a -o /dev/null
# RUN: ld.lld --fatal-warnings --warn-backrefs %t1.o --start-lib %t2.o --end-lib -o /dev/null
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe --start-group %t2.a %t1.o --end-group
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe "-(" %t2.a %t1.o "-)"
# RUN: echo 'INPUT("%t1.o" "%t2.a")' > %t1.lds
# RUN: ld.lld --fatal-warnings --warn-backrefs %t1.lds -o /dev/null
# RUN: echo "INPUT(\"%t1.o\" \"%t2.a\")" > %t1.script
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe %t1.script
## A backward reference from %t1.o to %t2.a
# RUN: ld.lld --fatal-warnings %t2.a %t1.o -o /dev/null
# RUN: ld.lld --warn-backrefs %t2.a %t1.o -o /dev/null 2>&1 | FileCheck %s
# RUN: ld.lld --warn-backrefs %t2.a '-(' %t1.o '-)' -o /dev/null 2>&1 | FileCheck %s
# RUN: echo "GROUP(\"%t2.a\" \"%t1.o\")" > %t2.script
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe %t2.script
## Placing the definition and the backward reference in a group can suppress the warning.
# RUN: echo 'GROUP("%t2.a" "%t1.o")' > %t2.lds
# RUN: ld.lld --fatal-warnings --warn-backrefs %t2.lds -o /dev/null
# RUN: ld.lld --fatal-warnings --warn-backrefs '-(' %t2.a %t1.o '-)' -o /dev/null
# RUN: not ld.lld --fatal-warnings --warn-backrefs -o /dev/null %t2.a %t1.o 2>&1 | FileCheck %s
# RUN: not ld.lld --fatal-warnings --warn-backrefs -o /dev/null %t2.a "-(" %t1.o "-)" 2>&1 | FileCheck %s
# RUN: not ld.lld --fatal-warnings --warn-backrefs -o /dev/null --start-group %t2.a --end-group %t1.o 2>&1 | FileCheck %s
## A backward reference from %t1.o to %t2.a (added by %t3.lds).
# RUN: echo 'GROUP("%t2.a")' > %t3.lds
# RUN: ld.lld --warn-backrefs %t3.lds %t1.o -o /dev/null 2>&1 | FileCheck %s
# RUN: ld.lld --fatal-warnings --warn-backrefs '-(' %t3.lds %t1.o '-)' -o /dev/null
# RUN: echo "GROUP(\"%t2.a\")" > %t3.script
# RUN: not ld.lld --fatal-warnings --warn-backrefs -o /dev/null %t3.script %t1.o 2>&1 | FileCheck %s
# RUN: ld.lld --fatal-warnings --warn-backrefs -o %t.exe "-(" %t3.script %t1.o "-)"
# CHECK: warning: backward reference detected: foo in {{.*}}1.o refers to {{.*}}2.a
# CHECK: backward reference detected: foo in {{.*}}1.o refers to {{.*}}2.a
## A backward reference from %t1.o to %t2.o
# RUN: ld.lld --warn-backrefs --start-lib %t2.o --end-lib %t1.o -o /dev/null 2>&1 | \
# RUN: FileCheck --check-prefix=OBJECT %s
# RUN: not ld.lld --fatal-warnings --start-group --start-group 2>&1 | FileCheck -check-prefix=START %s
# START: nested --start-group
# OBJECT: warning: backward reference detected: foo in {{.*}}1.o refers to {{.*}}2.o
# RUN: not ld.lld --fatal-warnings --end-group 2>&1 | FileCheck -check-prefix=END %s
# END: stray --end-group
# RUN: echo ".globl bar; bar:" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t3.o
# RUN: echo ".globl foo; foo: call bar" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t4.o
## Don't warn if the definition and the backward reference are in a group.
# RUN: echo '.globl bar; bar:' | llvm-mc -filetype=obj -triple=x86_64 - -o %t3.o
# RUN: echo '.globl foo; foo: call bar' | llvm-mc -filetype=obj -triple=x86_64 - -o %t4.o
# RUN: ld.lld --fatal-warnings --warn-backrefs %t1.o --start-lib %t3.o %t4.o --end-lib -o /dev/null
# We don't report backward references to weak symbols as they can be overridden later.
# RUN: echo ".weak foo; foo:" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t5.o
# RUN: ld.lld --fatal-warnings --warn-backrefs --start-lib %t5.o --end-lib %t1.o %t2.o -o /dev/null
## We don't report backward references to weak symbols as they can be overridden later.
# RUN: echo '.weak foo; foo:' | llvm-mc -filetype=obj -triple=x86_64 - -o %tweak.o
# RUN: ld.lld --fatal-warnings --warn-backrefs --start-lib %tweak.o --end-lib %t1.o %t2.o -o /dev/null
.globl _start, foo
_start: