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[lld][ELF][test] Add additional --symbol-ordering-file testing 

This covers a few cases that aren't otherwise tested:
1) Non-ascii symbol names are ordered.
2) Comments, whitespace and blank lines are trimmed.
3) Missing order files result in an error.

Reviewed by: MaskRay, grimar

Differential Revision: https://reviews.llvm.org/D90933
This commit is contained in:
James Henderson 2020-11-06 13:55:10 +00:00
parent 439341b9bf
commit d2f7f775ca
1 changed files with 37 additions and 6 deletions
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43
lld/test/ELF/symbol-ordering-file.s
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@ -4,31 +4,53 @@
# RUN: llvm-objdump -s %t.out| FileCheck %s --check-prefix=BEFORE
# BEFORE: Contents of section .foo:
# BEFORE-NEXT: 11223344 5566
# BEFORE-NEXT: 11223344 556677
# BEFORE: Contents of section .init:
# BEFORE-NEXT: 1122
# RUN: echo "_foo4 " > %t_order.txt
# RUN: echo " _foo3" >> %t_order.txt
# RUN: echo "_nönascii" >> %t_order.txt
# RUN: echo "_foo5" >> %t_order.txt
# RUN: echo "_foo2" >> %t_order.txt
# RUN: echo -e " _foo2 \t\v\r\f" >> %t_order.txt
# RUN: echo "# a comment" >> %t_order.txt
# RUN: echo " " >> %t_order.txt
# RUN: echo "_foo4" >> %t_order.txt
# RUN: echo "_bar1" >> %t_order.txt
# RUN: echo "" >> %t_order.txt
# RUN: echo "_foo1" >> %t_order.txt
# RUN: echo "_init2" >> %t_order.txt
# RUN: echo "_init1" >> %t_order.txt
# RUN: ld.lld --symbol-ordering-file %t_order.txt %t.o -o %t2.out
# RUN: llvm-objdump -s %t2.out| FileCheck %s --check-prefix=AFTER
## Show that both --symbol-ordering-file and --symbol-ordering-file= work.
## Also show that lines beginning with '#', whitespace and empty lines, are ignored.
## Also show that "first one wins" when there are duplicate symbols in the order
## file (a warning will be emitted).
# RUN: ld.lld --symbol-ordering-file %t_order.txt %t.o -o %t2.out 2>&1 | \
# RUN: FileCheck %s --check-prefix=WARN --implicit-check-not=warning:
# RUN: llvm-objdump -s %t2.out | FileCheck %s --check-prefix=AFTER
# RUN: ld.lld --symbol-ordering-file=%t_order.txt %t.o -o %t2.out
# RUN: llvm-objdump -s %t2.out| FileCheck %s --check-prefix=AFTER
# RUN: llvm-objdump -s %t2.out | FileCheck %s --check-prefix=AFTER
# WARN: warning: {{.*}}.txt: duplicate ordered symbol
# AFTER: Contents of section .foo:
# AFTER-NEXT: 44335566 2211
# AFTER-NEXT: 44337755 662211
# AFTER: Contents of section .init:
# AFTER-NEXT: 1122
## Show that a nonexistent symbol ordering file causes an error.
# RUN: not ld.lld --symbol-ordering-file=%t.nonexistent %t.o -o %t3.out 2>&1 | \
# RUN: FileCheck %s --check-prefix=ERR -DFILE=%t.nonexistent
# ERR: error: cannot open [[FILE]]: {{[Nn]}}o such file or directory
## Show that an empty ordering file can be handled (symbols remain in their
## normal order).
# RUN: touch %t.empty
# RUN: ld.lld --symbol-ordering-file=%t.empty %t.o -o %t4.out
# RUN: llvm-objdump -s %t4.out | FileCheck %s --check-prefix=BEFORE
.section .foo,"ax",@progbits,unique,1
_foo1:
.byte 0x11
@ -51,6 +73,10 @@ _foo5:
_bar1:
.byte 0x66
.section .foo,"ax",@progbits,unique,6
"_nönascii":
.byte 0x77
.section .init,"ax",@progbits,unique,1
_init1:
.byte 0x11
@ -58,3 +84,8 @@ _init1:
.section .init,"ax",@progbits,unique,2
_init2:
.byte 0x22
.text
.global _start
_start:
nop