caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[LLDB][MIPS] Emulation of MIPS64 floating-point branch instructions

Browse Source 
Patch by Jaydeep Patil

SUMMARY:
1. Added emulation of MIPS64 floating-point branch instructions
2. Updated GetRegisterInfo to recognize floating-point registers
3. Provided CPU information while creating createMCSubtargetInfo in disassembler
4. Bug fix in emulation of JIC and JIALC
5. Correct identification of breakpoint when set in a delay slot of a branch instruction

Reviewers: clayborg
Subscribers: bhushan, mohit.bhakkad, sagar, nitesh.jain, lldb-commits.
Differential Revision: http://reviews.llvm.org/D10355

llvm-svn: 239996
This commit is contained in:
Mohit K. Bhakkad
2015-06-18 06:03:27 +00:00
parent 58ef391f3e
commit 276a930eda
4 changed files with 572 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
View File

@@ -415,7 +415,7 @@ protected:
DisassemblerLLVMC::LLVMCDisassembler::LLVMCDisassembler (const char *triple, unsigned flavor, DisassemblerLLVMC &owner):
DisassemblerLLVMC::LLVMCDisassembler::LLVMCDisassembler (const char *triple, const char *cpu, unsigned flavor, DisassemblerLLVMC &owner):
m_is_valid(true)
{
std::string Error;
@@ -431,7 +431,7 @@ DisassemblerLLVMC::LLVMCDisassembler::LLVMCDisassembler (const char *triple, uns
std::string features_str;
m_subtarget_info_ap.reset(curr_target->createMCSubtargetInfo(triple, "",
m_subtarget_info_ap.reset(curr_target->createMCSubtargetInfo(triple, cpu,
features_str));
std::unique_ptr<llvm::MCRegisterInfo> reg_info(curr_target->createMCRegInfo(triple));
@@ -637,7 +637,45 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
triple = thumb_arch.GetTriple().getTriple().c_str();
}
m_disasm_ap.reset (new LLVMCDisassembler(triple, flavor, *this));
const char *cpu = "";
switch (arch.GetCore())
{
case ArchSpec::eCore_mips32:
case ArchSpec::eCore_mips32el:
cpu = "mips32"; break;
case ArchSpec::eCore_mips32r2:
case ArchSpec::eCore_mips32r2el:
cpu = "mips32r2"; break;
case ArchSpec::eCore_mips32r3:
case ArchSpec::eCore_mips32r3el:
cpu = "mips32r3"; break;
case ArchSpec::eCore_mips32r5:
case ArchSpec::eCore_mips32r5el:
cpu = "mips32r5"; break;
case ArchSpec::eCore_mips32r6:
case ArchSpec::eCore_mips32r6el:
cpu = "mips32r6"; break;
case ArchSpec::eCore_mips64:
case ArchSpec::eCore_mips64el:
cpu = "mips64"; break;
case ArchSpec::eCore_mips64r2:
case ArchSpec::eCore_mips64r2el:
cpu = "mips64r2"; break;
case ArchSpec::eCore_mips64r3:
case ArchSpec::eCore_mips64r3el:
cpu = "mips64r3"; break;
case ArchSpec::eCore_mips64r5:
case ArchSpec::eCore_mips64r5el:
cpu = "mips64r5"; break;
case ArchSpec::eCore_mips64r6:
case ArchSpec::eCore_mips64r6el:
cpu = "mips64r6"; break;
default:
cpu = ""; break;
}
m_disasm_ap.reset (new LLVMCDisassembler(triple, cpu, flavor, *this));
if (!m_disasm_ap->IsValid())
{
// We use m_disasm_ap.get() to tell whether we are valid or not, so if this isn't good for some reason,
@@ -649,7 +687,7 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
if (arch.GetTriple().getArch() == llvm::Triple::arm)
{
std::string thumb_triple(thumb_arch.GetTriple().getTriple());
m_alternate_disasm_ap.reset(new LLVMCDisassembler(thumb_triple.c_str(), flavor, *this));
m_alternate_disasm_ap.reset(new LLVMCDisassembler(thumb_triple.c_str(), nullptr, flavor, *this));
if (!m_alternate_disasm_ap->IsValid())
{
m_disasm_ap.reset();