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[MC] Don't crash when trying to emit a relocation against .bss.

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Turn that into an error instead.

llvm-svn: 276783
This commit is contained in:
Davide Italiano 2016-07-26 18:16:33 +00:00
parent e4279b249c
commit ea4f924624
2 changed files with 11 additions and 2 deletions
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4
lib/MC/MCAssembler.cpp
View File

@ -575,8 +575,8 @@ void MCAssembler::writeSectionData(const MCSection *Sec,
// into a virtual section. This is to support clients which use standard
// directives to fill the contents of virtual sections.
const MCDataFragment &DF = cast<MCDataFragment>(F);
assert(DF.fixup_begin() == DF.fixup_end() &&
"Cannot have fixups in virtual section!");
if (DF.fixup_begin() != DF.fixup_end())
report_fatal_error("cannot have fixups in virtual section!");
for (unsigned i = 0, e = DF.getContents().size(); i != e; ++i)
if (DF.getContents()[i]) {
if (auto *ELFSec = dyn_cast<const MCSectionELF>(Sec))

9
test/MC/X86/reloc-bss.s Normal file
View File

@ -0,0 +1,9 @@
# RUN: not llvm-mc -filetype=obj -triple=x86_64-linux-gnu %s 2>&1 | FileCheck %s
# CHECK: LLVM ERROR: cannot have fixups in virtual section!
.section .init_array,"awT",@nobits
.hidden patatino
.globl patatino
patatino:
movl __init_array_start, %eax