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[LLDB][MIPS] Fix floating point handling in case of thread step-out

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Patch by Nitesh Jain.

Summary: These patch fix thread step-out for hard and soft float.

Reviewers: clayborg, bhushan, jaydeep
Subscribers: mohit.bhakkad, sagar, sdardis
Differential: D20416
llvm-svn: 270207
This commit is contained in:
Sagar Thakur
2016-05-20 12:07:27 +00:00
parent a23ac3d249
commit 71b1decd72
6 changed files with 229 additions and 38 deletions
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36
lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
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@@ -33,6 +33,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/ARMBuildAttributes.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MipsABIFlags.h"
#define CASE_AND_STREAM(s, def, width) \
case def: s->Printf("%-*s", width, #def); break;
@@ -1706,8 +1707,39 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
if (section_size && (set_data (data, sheader.sh_offset, section_size) == section_size))
{
lldb::offset_t ase_offset = 12; // MIPS ABI Flags Version: 0
arch_flags |= data.GetU32 (&ase_offset);
// MIPS ASE Mask is at offset 12 in MIPS.abiflags section
lldb::offset_t offset = 12; // MIPS ABI Flags Version: 0
arch_flags |= data.GetU32 (&offset);
// The floating point ABI is at offset 7
offset = 7;
switch (data.GetU8 (&offset))
{
case llvm::Mips::Val_GNU_MIPS_ABI_FP_ANY :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_ANY;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_DOUBLE :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_DOUBLE;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_SINGLE :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_SINGLE;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_SOFT :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_SOFT;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_OLD_64 :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_OLD_64;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_XX :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_XX;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_64 :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_64;
break;
case llvm::Mips::Val_GNU_MIPS_ABI_FP_64A :
arch_flags |= lldb_private::ArchSpec::eMIPS_ABI_FP_64A;
break;
}
}
}
// Settings appropriate ArchSpec ABI Flags