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Detect attempt to use segmented stacks on non ELF systems and error

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(not assert) early.

llvm-svn: 139233
This commit is contained in:
Rafael Espindola 2011-09-07 16:10:57 +00:00
parent 7969f880c0
commit 1cca4f99bd
1 changed files with 5 additions and 0 deletions
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5
lib/Target/X86/X86Subtarget.cpp
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@ -16,9 +16,11 @@
#include "X86InstrInfo.h"
#include "llvm/GlobalValue.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Host.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/ADT/SmallVector.h"
#define GET_SUBTARGETINFO_TARGET_DESC
@ -321,6 +323,9 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU,
assert((!In64BitMode || HasX86_64) &&
"64-bit code requested on a subtarget that doesn't support it!");
if(EnableSegmentedStacks && !isTargetELF())
report_fatal_error("Segmented stacks are only implemented on ELF.");
// Stack alignment is 16 bytes on Darwin, FreeBSD, Linux and Solaris (both
// 32 and 64 bit) and for all 64-bit targets.
if (StackAlignOverride)