derek.holloway
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37 lines
1.2 KiB
ArmAsm
37 lines
1.2 KiB
ArmAsm
## Test that BOLT correctly handles mold-style STT_FUNC symbols in PLT
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## sections.
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# REQUIRES: system-linux
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## Build a shared library from the common stubs.
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# RUN: %clang %cflags %p/../Inputs/stub.c -fPIC -shared -o %t.so
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## Build and link the main binary. The linker creates a real PLT entry.
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# RUN: llvm-mc -filetype=obj -triple aarch64-linux %s -o %t.o
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# RUN: ld.lld -pie %t.o %t.so -o %t.exe --emit-relocs
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## Inject a mold-style STT_FUNC symbol at the PLT entry for printf.
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## Mold places "printf$plt" directly on the PLT stub; we simulate this
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## with llvm-objcopy. The PLT header is 32 bytes on AArch64, and each
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## entry is 16 bytes. printf is the only entry after the header.
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# RUN: llvm-objcopy --add-symbol "printf\$plt=.plt:32,function,local" \
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# RUN: %t.exe %t
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## Verify BOLT resolves the call as printf@PLT, not printf$plt.
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# RUN: llvm-bolt %t -o %t.bolt --print-cfg --print-only=_start 2>&1 \
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# RUN: | FileCheck %s
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# RUN: llvm-readobj --syms %t.bolt | grep -A7 printf$plt | FileCheck \
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# RUN: %s --check-prefix=CHECK-SYM
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# CHECK: bl printf@PLT
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# CHECK-NOT: printf$plt
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# CHECK-SYM: Section: .plt
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.text
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.globl _start
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.type _start, %function
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_start:
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bl printf
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ret
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.size _start, .-_start
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