derek.holloway
7502bf64a4
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81 lines
2.7 KiB
ArmAsm
81 lines
2.7 KiB
ArmAsm
# REQUIRES: x86
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## Test that vna_flags is set to VER_FLG_WEAK if all references to a version
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## are weak. This allows rtld to continue with a warning instead of erroring
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## when the required version is not found.
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 ref.s -o ref.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64 refw.s -o refw.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64 refw-gh.s -o refw-gh.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64 def.s -o def.o
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# RUN: ld.lld -shared --soname=def.so --version-script=ver def.o -o def.so
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## All references are weak; vna_flags should be VER_FLG_WEAK.
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# RUN: ld.lld -shared refw-gh.o def.so -o weakref.so
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# RUN: llvm-readelf -V weakref.so | FileCheck %s --check-prefix=WEAK1
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# WEAK1: Version needs section '.gnu.version_r' contains 1 entries:
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# WEAK1-NEXT: Addr:
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# WEAK1-NEXT: 0x0000: Version: 1 File: def.so Cnt: 2
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# WEAK1-NEXT: 0x0010: Name: v1 Flags: WEAK Version: 3
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# WEAK1-NEXT: 0x0020: Name: v2 Flags: WEAK Version: 2
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## All references are weak (from two object files); vna_flags should be VER_FLG_WEAK.
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# RUN: ld.lld -shared refw.o refw-gh.o def.so -o weakref2.so
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# RUN: llvm-readelf -V weakref2.so | FileCheck %s --check-prefix=WEAK2
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# WEAK2: Version needs section '.gnu.version_r' contains 1 entries:
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# WEAK2-NEXT: Addr:
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# WEAK2-NEXT: 0x0000: Version: 1 File: def.so Cnt: 2
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# WEAK2-NEXT: 0x0010: Name: v1 Flags: WEAK Version: 2
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# WEAK2-NEXT: 0x0020: Name: v2 Flags: WEAK Version: 3
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## v1 has mixed references (none); v2 has weak references (WEAK).
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# RUN: ld.lld -shared ref.o refw-gh.o def.so -o mixedref.so
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# RUN: llvm-readelf -V mixedref.so | FileCheck %s --check-prefix=MIXED
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# MIXED: Version needs section '.gnu.version_r' contains 1 entries:
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# MIXED-NEXT: Addr:
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# MIXED-NEXT: 0x0000: Version: 1 File: def.so Cnt: 2
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# MIXED-NEXT: 0x0010: Name: v1 Flags: none Version: 2
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# MIXED-NEXT: 0x0020: Name: v2 Flags: WEAK Version: 3
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## All references are non-weak; vna_flags should be 0 (none).
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# RUN: ld.lld -shared ref.o def.so -o strongref.so
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# RUN: llvm-readelf -V strongref.so | FileCheck %s --check-prefix=STRONG
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# STRONG: Version needs section '.gnu.version_r' contains 1 entries:
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# STRONG-NEXT: Addr:
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# STRONG-NEXT: 0x0000: Version: 1 File: def.so Cnt: 1
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# STRONG-NEXT: 0x0010: Name: v1 Flags: none Version: 2
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# STRONG-EMPTY:
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## --as-needed: weak reference doesn't pull in def.so, so no version needs.
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# RUN: ld.lld -shared refw.o --as-needed def.so -o asneeded.so
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# RUN: llvm-readelf -V asneeded.so | count 0
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#--- ver
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v1 { f; g; };
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v2 { h; };
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#--- ref.s
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.globl f
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call f
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#--- refw.s
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.weak f
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call f
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#--- refw-gh.s
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.weak g, h
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.symver g, g@@@v1
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call g
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call h
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#--- def.s
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.globl f, g, h
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f:
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g:
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h:
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ret
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