5b0572875c
MSVC linker accepts native ARM64 object files as input with `-machine:arm64ec`, similar to `-machine:arm64x`. Its usefulness is very limited; for example, both exports and imports are not reflected in the PE structures and can't work. However, their symbol tables are otherwise functional. Since we already have handling of multiple symbol tables implemented for ARM64X, the required changes are mostly about adjusting relevant checks to account for them on the ARM64EC target. Delay-load helper handling is a bit of a shortcut. The patch never pulls it for native object files and just ensures that the code is fine with that. In general, I think it would be nice to adjust the driver to pull it only when it's actually referenced, which would allow applying the same logic to the native symbol table on ARM64EC without worrying about pulling too much.
162 lines
7.2 KiB
Plaintext
162 lines
7.2 KiB
Plaintext
REQUIRES: aarch64, x86
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RUN: split-file %s %t.dir && cd %t.dir
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows symref.s -o symref-arm64ec.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows nsymref.s -o nsymref-arm64ec.obj
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RUN: llvm-mc -filetype=obj -triple=aarch64-windows nsymref.s -o nsymref-aarch64.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows sym.s -o sym-arm64ec.obj
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows sym.s -o sym-x86_64.obj
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RUN: llvm-mc -filetype=obj -triple=aarch64-windows nsym.s -o nsym-aarch64.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows ref-alias.s -o ref-alias.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows ref-thunk.s -o ref-thunk.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows func.s -o func.obj
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows func-x86_64.s -o func-x86_64.obj
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RUN: llvm-mc -filetype=obj -triple=aarch64-windows %S/Inputs/loadconfig-arm64.s -o loadconfig-arm64.obj
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RUN: llvm-mc -filetype=obj -triple=arm64ec-windows %S/Inputs/loadconfig-arm64ec.s -o loadconfig-arm64ec.obj
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RUN: llvm-lib -machine:arm64ec -out:sym-arm64ec.lib sym-arm64ec.obj nsym-aarch64.obj
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RUN: llvm-lib -machine:amd64 -out:sym-x86_64.lib sym-x86_64.obj
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RUN: llvm-lib -machine:arm64ec -out:func.lib func.obj
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RUN: llvm-lib -machine:arm64ec -out:func-x86_64.lib func-x86_64.obj
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RUN: llvm-lib -machine:arm64ec -out:func-imp.lib -def:func.def
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Verify that a symbol can be referenced from ECSYMBOLS.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:test.dll symref-arm64ec.obj sym-arm64ec.lib loadconfig-arm64ec.obj
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Verify that a symbol can be referenced from a regular archive map when ECSYMBOLS is absent (using an x86_64 archive).
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RUN: lld-link -machine:arm64ec -dll -noentry -out:test2.dll symref-arm64ec.obj sym-x86_64.lib loadconfig-arm64ec.obj
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Verify that both native and EC symbols can be referenced in a hybrid target.
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RUN: lld-link -machine:arm64x -dll -noentry -out:test3.dll symref-arm64ec.obj nsymref-aarch64.obj sym-arm64ec.lib \
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RUN: loadconfig-arm64.obj loadconfig-arm64ec.obj
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RUN: lld-link -machine:arm64ec -dll -noentry -out:test3ec.dll symref-arm64ec.obj nsymref-aarch64.obj sym-arm64ec.lib \
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RUN: loadconfig-arm64.obj loadconfig-arm64ec.obj
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Ensure that an EC symbol is not resolved using a regular symbol map.
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RUN: not lld-link -machine:arm64ec -dll -noentry -out:test-err.dll nsymref-arm64ec.obj sym-arm64ec.lib loadconfig-arm64ec.obj 2>&1 |\
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RUN: FileCheck --check-prefix=ERR %s
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ERR: error: undefined symbol: nsym (EC symbol)
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Verify that a library symbol can be referenced, even if its name conflicts with an anti-dependency alias.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-alias-1.dll ref-alias.obj func.lib loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-alias-1.dll | FileCheck -check-prefix=DISASM %s
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DISASM: 0000000180001000 <.text>:
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DISASM-NEXT: 180001000: d65f03c0 ret
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DISASM-EMPTY:
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RUN: llvm-readobj --hex-dump=.test ref-alias-1.dll | FileCheck -check-prefix=TESTSEC %s
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TESTSEC: 0x180005000 00100000
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The same test, but with a different input order.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-alias-2.dll func.lib ref-alias.obj loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-alias-2.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-alias-2.dll | FileCheck -check-prefix=TESTSEC %s
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Verify that when an anti-dependency to a guess exit thunk is present, it is overridden by an archive symbol.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-1.dll ref-thunk.obj func.lib loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-thunk-1.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-thunk-1.dll | FileCheck -check-prefix=TESTSEC %s
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The same test, but with a different input order.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-2.dll func.lib ref-thunk.obj loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-thunk-2.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-thunk-2.dll | FileCheck -check-prefix=TESTSEC %s
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Pass multiple libraries containing `func` with different manglings and ensure they don't conflict with each other.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-3.dll func.lib loadconfig-arm64ec.obj func-x86_64.lib func-imp.lib ref-thunk.obj
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RUN: llvm-objdump -d ref-thunk-3.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-thunk-3.dll | FileCheck -check-prefix=TESTSEC %s
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-4.dll ref-thunk.obj func.lib loadconfig-arm64ec.obj func-x86_64.lib func-imp.lib
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RUN: llvm-objdump -d ref-thunk-4.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-thunk-4.dll | FileCheck -check-prefix=TESTSEC %s
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Test linking against an x86_64 library (which uses a demangled function name).
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-1.dll ref-thunk.obj func-x86_64.lib loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-x86-1.dll | FileCheck -check-prefix=DISASM-X86 %s
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RUN: llvm-readobj --hex-dump=.test ref-x86-1.dll | FileCheck -check-prefix=TESTSEC %s
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DISASM-X86: 0000000180001000 <.text>:
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DISASM-X86-NEXT: 180001000: c3 retq
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The same test, but with a different input order.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-2.dll func-x86_64.lib ref-thunk.obj loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-x86-2.dll | FileCheck -check-prefix=DISASM-X86 %s
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RUN: llvm-readobj --hex-dump=.test ref-x86-2.dll | FileCheck -check-prefix=TESTSEC %s
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Check that an alias to the implementation takes precedence over an archive symbol.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-2.dll func-x86_64.lib func.obj ref-thunk.obj loadconfig-arm64ec.obj
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RUN: llvm-objdump -d ref-x86-2.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-x86-2.dll | FileCheck -check-prefix=TESTSEC %s
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A similar test using -start-lib for linking.
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RUN: lld-link -machine:arm64ec -dll -noentry -out:start-lib-1.dll ref-thunk.obj -start-lib func.obj -end-lib loadconfig-arm64ec.obj
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RUN: llvm-objdump -d start-lib-1.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test start-lib-1.dll | FileCheck -check-prefix=TESTSEC %s
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RUN: lld-link -machine:arm64ec -dll -noentry -out:start-lib-2.dll ref-thunk.obj -start-lib func.obj -end-lib loadconfig-arm64ec.obj \
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RUN: -start-lib func-x86_64.obj -end-lib func-imp.lib
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RUN: llvm-objdump -d ref-thunk-3.dll | FileCheck -check-prefix=DISASM %s
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RUN: llvm-readobj --hex-dump=.test ref-thunk-3.dll | FileCheck -check-prefix=TESTSEC %s
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#--- symref.s
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.data
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.rva sym
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#--- nsymref.s
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.data
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.rva nsym
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#--- sym.s
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.data
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.globl sym
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sym:
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.word 0
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#--- nsym.s
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.data
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.globl nsym
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nsym:
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.word 0
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#--- ref-alias.s
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.weak_anti_dep func
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.set func,"#func"
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.section .test, "r"
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.rva func
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#--- ref-thunk.s
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.weak_anti_dep func
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.set func, "#func"
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.weak_anti_dep "#func"
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.set "#func", thunksym
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.section .test, "r"
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.rva func
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.section .thnk,"xr",discard,thunksym
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thunksym:
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mov w0, #2
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ret
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#--- func.s
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.text
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.globl "#func"
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"#func":
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ret
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.weak_anti_dep func
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.set func,"#func"
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#--- func-x86_64.s
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.text
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.globl func
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func:
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ret
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#--- func.def
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LIBRARY func.dll
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EXPORTS
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func
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