[LLDB][MIPS] Fix floating point handling in case of thread step-out
Patch by Nitesh Jain.
Summary: These patch fix thread step-out for hard and soft float.
Reviewers: jaydeep, bhushan, clayborg
Differential Revision: http://reviews.llvm.org/D20416
llvm-svn: 270564
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index 7f963c9..383cbb1 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -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 @@
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