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llvm-project/lld/test/MachO/treat-undef-sym.s

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[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
# REQUIRES: x86
[lld-macho] Fix incremental build (again) from D112485
2021-10-26 09:51:34 +08:00
# RUN: rm -rf %t; split-file %s %t
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
[lld-macho] Make test produce the dead.o and live.o that are used below. Follow up fix to breakages in D112485
2021-10-26 10:10:24 +08:00
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/live.s -o %t/live.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/dead.s -o %t/dead.o
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: not %lld -undefined bogus -o /dev/null %t/live.o 2>&1 | \
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
# RUN: FileCheck %s -check-prefix=UNKNOWN
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: not %lld -undefined error -o /dev/null %t/live.o 2>&1 | \
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
# RUN: FileCheck %s -check-prefix=ERROR
[lld/mac] reject -undefined warning and -undefined suppress with -twolevel_namespace See discussion on https://reviews.llvm.org/D93263 -flat_namespace isn't implemented yet, and neither is -undefined dynamic, so this makes -undefined pretty pointless in lld/MachO for now. But once we implement -flat_namespace (which we need to do anyways to get check-llvm to pass with lld as host linker), the code's already there. Follow-up to https://reviews.llvm.org/D93263#2491865 Differential Revision: https://reviews.llvm.org/D96963
2021-02-18 21:48:07 +08:00
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: not %lld -undefined warning -o /dev/null %t/live.o 2>&1 | \
[lld/mac] reject -undefined warning and -undefined suppress with -twolevel_namespace See discussion on https://reviews.llvm.org/D93263 -flat_namespace isn't implemented yet, and neither is -undefined dynamic, so this makes -undefined pretty pointless in lld/MachO for now. But once we implement -flat_namespace (which we need to do anyways to get check-llvm to pass with lld as host linker), the code's already there. Follow-up to https://reviews.llvm.org/D93263#2491865 Differential Revision: https://reviews.llvm.org/D96963
2021-02-18 21:48:07 +08:00
# RUN: FileCheck %s -check-prefix=INVAL-WARNING
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: not %lld -undefined suppress -o /dev/null %t/live.o 2>&1 | \
[lld/mac] reject -undefined warning and -undefined suppress with -twolevel_namespace See discussion on https://reviews.llvm.org/D93263 -flat_namespace isn't implemented yet, and neither is -undefined dynamic, so this makes -undefined pretty pointless in lld/MachO for now. But once we implement -flat_namespace (which we need to do anyways to get check-llvm to pass with lld as host linker), the code's already there. Follow-up to https://reviews.llvm.org/D93263#2491865 Differential Revision: https://reviews.llvm.org/D96963
2021-02-18 21:48:07 +08:00
# RUN: FileCheck %s -check-prefix=INVAL-SUPPRESS
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: %lld -undefined dynamic_lookup -lSystem -o %t/live.out %t/live.o 2>&1 | count 0
# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# RUN: | FileCheck --check-prefix=BIND %s
# RUN: %no_fatal_warnings_lld -lSystem -flat_namespace -undefined warning \
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: -o %t/live.out %t/live.o 2>&1 | \
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# RUN: FileCheck %s -check-prefix=WARNING
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# RUN: | FileCheck --check-prefix=BIND %s
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: %lld -flat_namespace -lSystem -undefined suppress -o %t/live.out %t/live.o \
# RUN: 2>&1 | count 0
# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# RUN: | FileCheck --check-prefix=BIND %s
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
# RUN: %lld -flat_namespace -lSystem -undefined dynamic_lookup -o \
# RUN: %t/live.out %t/live.o 2>&1 | count 0
# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# RUN: | FileCheck --check-prefix=BIND %s
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
## Undefined symbols in dead code should not raise an error iff
## -dead_strip is enabled.
# RUN: not %lld -dylib -undefined error -o /dev/null %t/dead.o 2>&1 \
# RUN: | FileCheck --check-prefix=ERROR %s
# RUN: not %lld -dylib -dead_strip -undefined error -o /dev/null %t/live.o 2>&1\
# RUN: | FileCheck --check-prefix=ERROR %s
# RUN: %lld -dylib -dead_strip -undefined error -o /dev/null %t/dead.o
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
# ERROR: error: undefined symbol: _bar
# ERROR-NEXT: >>> referenced by
[lld/mac] reject -undefined warning and -undefined suppress with -twolevel_namespace See discussion on https://reviews.llvm.org/D93263 -flat_namespace isn't implemented yet, and neither is -undefined dynamic, so this makes -undefined pretty pointless in lld/MachO for now. But once we implement -flat_namespace (which we need to do anyways to get check-llvm to pass with lld as host linker), the code's already there. Follow-up to https://reviews.llvm.org/D93263#2491865 Differential Revision: https://reviews.llvm.org/D96963
2021-02-18 21:48:07 +08:00
# INVAL-WARNING: error: '-undefined warning' only valid with '-flat_namespace'
# INVAL-WARNING-NEXT: error: undefined symbol: _bar
# INVAL-SUPPRESS: error: '-undefined suppress' only valid with '-flat_namespace'
# INVAL-SUPPRESS-NEXT: error: undefined symbol: _bar
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
# WARNING: warning: undefined symbol: _bar
# WARNING-NEXT: >>> referenced by
# UNKNOWN: unknown -undefined TREATMENT 'bogus'
# UNKNOWN-NEXT: error: undefined symbol: _bar
# UNKNOWN-NEXT: >>> referenced by
[lld/mac] Implement the missing bits of -undefined This adds support for `-undefined dynamic_lookup`, and for `-undefined warning` and `-undefined suppress` with `-flat_namespace`. We just replace undefined symbols with a DynamicLookup when we hit them. With this, `check-llvm` passes when using ld64.lld.darwinnew as host linker. Differential Revision: https://reviews.llvm.org/D97642
2021-03-01 02:42:14 +08:00
# BIND: Lazy bind table:
# BIND: __DATA __la_symbol_ptr 0x{{[0-9a-f]*}} flat-namespace _bar
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
#--- live.s
[lld-macho] Implement option: -undefined TREATMENT TREATMENT can be `error`, `warning`, `suppress`, or `dynamic_lookup` The `dymanic_lookup` remains unimplemented for now. Differential Revision: https://reviews.llvm.org/D93263
2020-12-14 11:31:33 +08:00
.globl _main
_main:
callq _bar
ret
[lld-macho][nfc] Test that we don't emit undef symbol errors for dead code This is what ld64 does too, so we have parity here (though I think ld64 still removes dead code more effectively than we do...) Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D112485
2021-10-26 04:21:08 +08:00
#--- dead.s
_dead:
callq _bar
ret