66 lines
2.4 KiB
ArmAsm
66 lines
2.4 KiB
ArmAsm
# REQUIRES: x86
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## -z pack-relative-relocs is a variant of --pack-dyn-relocs=relr: add
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## GLIBC_ABI_DT_RELR verneed if there is a verneed named "GLIBC_2.*".
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# RUN: rm -rf %t && split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/libc.s -o %t/libc.o
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# RUN: ld.lld -shared --soname=libc.so.6 --version-script=%t/glibc.ver %t/libc.o -o %t/libc.so.6
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# RUN: ld.lld -pie %t/a.o %t/libc.so.6 -z pack-relative-relocs -o %t/glibc 2>&1 | count 0
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# RUN: llvm-readelf -r -V %t/glibc | FileCheck %s --check-prefix=GLIBC
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## Arbitrarily let -z pack-relative-relocs win.
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# RUN: ld.lld -pie %t/a.o %t/libc.so.6 -z pack-relative-relocs --pack-dyn-relocs=relr -o %t/glibc2
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# RUN: cmp %t/glibc %t/glibc2
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# GLIBC: Relocation section '.relr.dyn' at offset {{.*}} contains 1 entries:
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# GLIBC: Version needs section '.gnu.version_r' contains 1 entries:
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# GLIBC-NEXT: Addr: {{.*}}
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# GLIBC-NEXT: 0x0000: Version: 1 File: libc.so.6 Cnt: 2
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# GLIBC-NEXT: 0x0010: Name: GLIBC_2.33 Flags: none Version: 2
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# GLIBC-NEXT: 0x0020: Name: GLIBC_ABI_DT_RELR Flags: none Version: 3
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# GLIBC-EMPTY:
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# RUN: ld.lld -pie %t/a.o %t/libc.so.6 -z pack-relative-relocs -z nopack-relative-relocs -o %t/notrelr 2>&1 | count 0
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# RUN: llvm-readelf -r -V %t/notrelr | FileCheck %s --check-prefix=REGULAR
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# REGULAR-NOT: Relocation section '.relr.dyn'
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# REGULAR-NOT: Name: GLIBC_ABI_DT_RELR
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## soname is not "libc.so.*". Don't synthesize GLIBC_ABI_DT_RELR. In glibc, ld.so
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## doesn't define GLIBC_ABI_DT_RELR. libc.so itself should not reference GLIBC_ABI_DT_RELR.
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# RUN: ld.lld -shared --soname=ld-linux-x86-64.so.2 --version-script=%t/glibc.ver %t/libc.o -o %t/ld.so
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# RUN: ld.lld -pie %t/a.o %t/ld.so -z pack-relative-relocs -o %t/other 2>&1 | count 0
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# RUN: llvm-readelf -r -V %t/other | FileCheck %s --check-prefix=NOTLIBC
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# NOTLIBC: Relocation section '.relr.dyn' at offset {{.*}} contains 1 entries:
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# NOTLIBC-NOT: Name: GLIBC_ABI_DT_RELR
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## There is no GLIBC_2.* verneed. Don't add GLIBC_ABI_DT_RELR verneed.
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# RUN: ld.lld -shared --soname=libc.so.6 --version-script=%t/other.ver %t/libc.o -o %t/libc.so.6
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# RUN: ld.lld -pie %t/a.o %t/libc.so.6 -z pack-relative-relocs -o %t/other
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# RUN: llvm-readelf -r -V %t/other | FileCheck %s --check-prefix=NOTLIBC
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#--- a.s
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.globl _start
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_start:
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call stat
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.data
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.balign 8
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.dc.a .data
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#--- libc.s
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.weak stat
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stat:
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#--- glibc.ver
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GLIBC_2.33 {
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stat;
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};
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#--- other.ver
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GLIBC_3 {
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stat;
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};
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