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| author | Fangrui Song <i@maskray.me> | 2025-11-18 22:13:34 -0800 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2025-11-18 22:13:34 -0800 |
| commit | ed1c8d7a57808de7ac60f2d0ff3e2b03a765cb7f (patch) | |
| tree | 5bf4779ce8985ad04ee1bbfae17d322642d8ca95 /lld | |
| parent | 5bba4fd75dd513423ff8bb905f89b60558099578 (diff) | |
ELF,test: Test unversioned undefined symbols of index 0 and 1
My 2020 change that added versioned symbol recognition
(reviews.llvm.org/D80059) checks both VER_NDX_LOCAL and VER_NDX_GLOBAL,
though test coverage was missing. lld/test/ELF/dso-undef-extract-lazy.s
checks that the undefined symbol is indeed considered unversioned.
Diffstat (limited to 'lld')
| -rw-r--r-- | lld/test/ELF/dso-undef-extract-lazy.s | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lld/test/ELF/dso-undef-extract-lazy.s b/lld/test/ELF/dso-undef-extract-lazy.s index 40b0758957d7..5d925453f27d 100644 --- a/lld/test/ELF/dso-undef-extract-lazy.s +++ b/lld/test/ELF/dso-undef-extract-lazy.s @@ -25,6 +25,11 @@ # CHECK-FETCH: GLOBAL DEFAULT {{[0-9]+}} foo +## Unversioned undefined symbols also extract the archive definitions. +# RUN: yaml2obj %t/ver.yaml -o %t4.so +# RUN: ld.lld %t1.o %t4.so %t2.a -o %t.exe +# RUN: llvm-readelf --dyn-symbols %t.exe | FileCheck %s --check-prefix=CHECK-FETCH + #--- main.s .text .globl _start @@ -38,3 +43,39 @@ foo: #--- shlib.s .global foo + +#--- ver.yaml +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version + Type: SHT_GNU_versym + Flags: [ SHF_ALLOC ] + Address: 0x0000000000200210 + AddressAlign: 0x0000000000000002 + EntSize: 0x0000000000000002 +## Test both index 0 and 1 for unversioned undefined symbols. +## https://sourceware.org/PR33577 + Entries: [ 0, 0, 1 ] + - Name: .gnu.version_r + Type: SHT_GNU_verneed + Flags: [ SHF_ALLOC ] + Address: 0x0000000000200250 + AddressAlign: 0x0000000000000004 + Dependencies: + - Version: 1 + File: dso.so.0 + Entries: + - Name: v1 + Hash: 1937 + Flags: 0 + Other: 3 +DynamicSymbols: + - Name: _start + Binding: STB_GLOBAL + - Name: foo + Binding: STB_GLOBAL |