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GNU ld -r can create .rela.eh_frame with unordered r_offset values. (With LLD, we can craft such a case by reordering sections in .eh_frame.) This is currently unsupported and will trigger `assert(pieces[i].inputOff <= off ...` in `OffsetGetter::get` (the content is corrupted in a -DLLVM_ENABLE_ASSERTIONS=off build). This patch supports this case. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D101116
31 lines
796 B
ArmAsm
31 lines
796 B
ArmAsm
# REQUIRES: x86
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# RUN: 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: cp %t/a.o %t/b.o
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# RUN: ld.lld -r -T %t/lds %t/a.o %t/b.o -o %t/c.o
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# RUN: llvm-readelf -r %t/c.o | FileCheck %s --check-prefix=REL
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## If we swap two input .eh_frame, the r_offset values in relocations will be
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## unordered.
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# REL: Offset
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# REL-NEXT: 0000000000000050
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# REL-NEXT: 0000000000000020
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## Test we can handle the rare case.
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# RUN: ld.lld %t/c.o -o %t/c
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# RUN: llvm-dwarfdump --eh-frame %t/c | FileCheck %s
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# CHECK: 00000000 00000014 00000000 CIE
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# CHECK: 00000018 00000014 0000001c FDE cie=00000000
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# CHECK: 00000030 00000014 00000034 FDE cie=00000000
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#--- a.s
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.cfi_startproc
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nop
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.cfi_endproc
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#--- lds
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SECTIONS {
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.eh_frame : { *b.o(.eh_frame) *a.o(.eh_frame) }
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}
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