derek.holloway
7502bf64a4
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165 lines
6.9 KiB
ArmAsm
165 lines
6.9 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/symbol-ordering-file-warnings1.s -o %t2.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/symbol-ordering-file-warnings2.s -o %t3.o
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# RUN: ld.lld -shared %t2.o -o %t.so
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# Check that a warning is emitted for entries in the file that are not present in any used input.
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# RUN: echo "missing" > %t-order-missing.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-missing.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,MISSING
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# Check that the warning can be disabled.
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-missing.txt \
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# RUN: --unresolved-symbols=ignore-all --no-warn-symbol-ordering 2>&1 | count 0
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# Check that the warning can be re-enabled
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-missing.txt \
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# RUN: --unresolved-symbols=ignore-all --no-warn-symbol-ordering --warn-symbol-ordering 2>&1 | \
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# RUN: FileCheck %s --check-prefixes=WARN,MISSING
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# Check that a warning is emitted for imported shared symbols.
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# RUN: echo "shared" > %t-order-shared.txt
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# RUN: ld.lld %t1.o %t.so -o %t --symbol-ordering-file %t-order-shared.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,SHARED
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# Check that a warning is emitted for absolute symbols.
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# RUN: echo "absolute" > %t-order-absolute.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-absolute.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,ABSOLUTE
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# Check that a warning is emitted for symbols discarded due to --gc-sections.
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# RUN: echo "gc" > %t-order-gc.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-gc.txt --gc-sections \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,GC
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# Check that a warning is not emitted for the symbol removed due to --icf.
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# RUN: echo "icf1" > %t-order-icf.txt
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# RUN: echo "icf2" >> %t-order-icf.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-icf.txt --icf=all \
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# RUN: --unresolved-symbols=ignore-all --fatal-warnings
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# RUN: echo "_GLOBAL_OFFSET_TABLE_" > %t-order-synthetic.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-synthetic.txt --icf=all \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,SYNTHETIC
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# Check that a warning is emitted for symbols discarded due to a linker script /DISCARD/ section.
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# RUN: echo "discard" > %t-order-discard.txt
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# RUN: echo "SECTIONS { /DISCARD/ : { *(.text.discard) } }" > %t.script
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-discard.txt -T %t.script \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,DISCARD
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## No warning for symbols that resolve cleanly: a common symbol
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## (replaceCommonSymbols turns it into a Defined before
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## --symbol-ordering-file is processed), a discarded COMDAT whose kept
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## instance is in %t2.o, and a weak symbol replaced by an equivalent global.
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# RUN: echo "common" > %t-order-clean.txt
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# RUN: echo "comdat" >> %t-order-clean.txt
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# RUN: echo "glob_or_wk" >> %t-order-clean.txt
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# RUN: ld.lld %t1.o %t2.o -o %t --symbol-ordering-file %t-order-clean.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | count 0
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# Check that if a COMDAT was unused and discarded via --gc-sections, warn for each instance.
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# RUN: echo "comdat" > %t-order-comdat.txt
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# RUN: ld.lld %t1.o %t2.o -o %t --symbol-ordering-file %t-order-comdat.txt --gc-sections \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,COMDAT
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# Check that symbols only in unused archive members does not result in a warning.
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# RUN: rm -f %t.a
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# RUN: llvm-ar rc %t.a %t3.o
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# RUN: ld.lld %t1.o %t.a -o %t --symbol-ordering-file %t-order-missing.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | count 0
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# Check that a warning for each same-named symbol with an issue.
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# RUN: echo "multi" > %t-order-same-name.txt
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# RUN: ld.lld %t1.o %t2.o %t3.o -o %t --symbol-ordering-file %t-order-same-name.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,MULTI
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# Check that a warning is emitted if the same symbol is mentioned multiple times in the ordering file.
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# RUN: echo "_start" > %t-order-multiple-same.txt
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# RUN: echo "_start" >> %t-order-multiple-same.txt
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# RUN: ld.lld %t1.o -o %t --symbol-ordering-file %t-order-multiple-same.txt \
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# RUN: --unresolved-symbols=ignore-all 2>&1 | FileCheck %s --check-prefixes=WARN,SAMESYM
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# Check that all warnings can be emitted from the same input.
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# RUN: echo "missing_sym" > %t-order-multi.txt
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# RUN: echo "undefined" >> %t-order-multi.txt
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# RUN: echo "_start" >> %t-order-multi.txt
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# RUN: echo "shared" >> %t-order-multi.txt
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# RUN: echo "absolute" >> %t-order-multi.txt
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# RUN: echo "gc" >> %t-order-multi.txt
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# RUN: echo "discard" >> %t-order-multi.txt
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# RUN: echo "_GLOBAL_OFFSET_TABLE_" >> %t-order-multi.txt
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# RUN: echo "_start" >> %t-order-multi.txt
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# RUN: ld.lld %t1.o %t3.o %t.so -o %t --symbol-ordering-file %t-order-multi.txt --gc-sections -T %t.script \
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# RUN: 2>&1 | FileCheck %s --check-prefixes=WARN,SAMESYM,ABSOLUTE,SHARED,UNDEFINED,GC,DISCARD,MISSING2,SYNTHETIC
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# WARN-NOT: warning:
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# SAMESYM: warning: {{.*}}.txt: duplicate ordered symbol: _start
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# WARN-NOT: warning:
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# SHARED: warning: {{.*}}.so: unable to order shared symbol: shared
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# WARN-NOT: warning:
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# DISCARD: warning: {{.*}}1.o: unable to order discarded symbol: discard
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# WARN-NOT: warning:
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# GC: warning: {{.*}}1.o: unable to order discarded symbol: gc
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# WARN-NOT: warning:
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# SYNTHETIC: warning: <internal>: unable to order synthetic symbol: _GLOBAL_OFFSET_TABLE_
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# WARN-NOT: warning:
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# UNDEFINED: warning: {{.*}}3.o: unable to order undefined symbol: undefined
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# WARN-NOT: warning:
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# ABSOLUTE: warning: {{.*}}1.o: unable to order absolute symbol: absolute
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# WARN-NOT: warning:
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# MISSING: warning: symbol ordering file: no such symbol: missing
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# WARN-NOT: warning:
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# MISSING2: warning: symbol ordering file: no such symbol: missing_sym
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# WARN-NOT: warning:
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# COMDAT: warning: {{.*}}1.o: unable to order discarded symbol: comdat
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# WARN-NOT: warning:
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# MULTI: warning: {{.*}}2.o: unable to order absolute symbol: multi
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# WARN-NOT: warning:
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.section .text._start,"ax",@progbits
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.global _start
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_start:
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movq %rax, absolute
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callq shared
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absolute = 0x1234
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.comm common,4,4
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.section .text.comdat,"axG",@progbits,comdat,comdat
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.weak comdat
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comdat:
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nop
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.section .text.discard,"ax",@progbits
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.global discard
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discard:
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nop
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.section .text.gc,"ax",@progbits
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.global gc
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gc:
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nop
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.section .text.glob_or_wk,"ax",@progbits
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.weak glob_or_wk
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glob_or_wk:
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nop
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.section .text.icf1,"ax",@progbits
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.global icf1
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icf1:
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ret
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.section .text.icf2,"ax",@progbits
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.global icf2
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icf2:
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ret
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# This is a "good" instance of the symbol
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.section .text.multi,"ax",@progbits
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multi:
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.quad _GLOBAL_OFFSET_TABLE_
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