diff options
Diffstat (limited to 'source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp')
| -rw-r--r-- | source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp | 1640 |
1 files changed, 798 insertions, 842 deletions
diff --git a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp index fea847dd17ee..4ffcba377345 100644 --- a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp +++ b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp @@ -25,231 +25,271 @@ #include "lldb/Core/RegisterValue.h" #include "lldb/Core/Value.h" #include "lldb/Core/ValueObjectConstResult.h" -#include "lldb/Core/ValueObjectRegister.h" #include "lldb/Core/ValueObjectMemory.h" +#include "lldb/Core/ValueObjectRegister.h" #include "lldb/Symbol/UnwindPlan.h" -#include "lldb/Target/Target.h" #include "lldb/Target/Process.h" #include "lldb/Target/RegisterContext.h" #include "lldb/Target/StackFrame.h" +#include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" using namespace lldb; using namespace lldb_private; -enum dwarf_regnums -{ - dwarf_r0 = 0, - dwarf_r1, - dwarf_r2, - dwarf_r3, - dwarf_r4, - dwarf_r5, - dwarf_r6, - dwarf_r7, - dwarf_r8, - dwarf_r9, - dwarf_r10, - dwarf_r11, - dwarf_r12, - dwarf_r13, - dwarf_r14, - dwarf_r15, - dwarf_r16, - dwarf_r17, - dwarf_r18, - dwarf_r19, - dwarf_r20, - dwarf_r21, - dwarf_r22, - dwarf_r23, - dwarf_r24, - dwarf_r25, - dwarf_r26, - dwarf_r27, - dwarf_r28, - dwarf_r29, - dwarf_r30, - dwarf_r31, - dwarf_f0, - dwarf_f1, - dwarf_f2, - dwarf_f3, - dwarf_f4, - dwarf_f5, - dwarf_f6, - dwarf_f7, - dwarf_f8, - dwarf_f9, - dwarf_f10, - dwarf_f11, - dwarf_f12, - dwarf_f13, - dwarf_f14, - dwarf_f15, - dwarf_f16, - dwarf_f17, - dwarf_f18, - dwarf_f19, - dwarf_f20, - dwarf_f21, - dwarf_f22, - dwarf_f23, - dwarf_f24, - dwarf_f25, - dwarf_f26, - dwarf_f27, - dwarf_f28, - dwarf_f29, - dwarf_f30, - dwarf_f31, - dwarf_cr, - dwarf_fpscr, - dwarf_xer = 101, - dwarf_lr = 108, - dwarf_ctr, - dwarf_pc, - dwarf_cfa, +enum dwarf_regnums { + dwarf_r0 = 0, + dwarf_r1, + dwarf_r2, + dwarf_r3, + dwarf_r4, + dwarf_r5, + dwarf_r6, + dwarf_r7, + dwarf_r8, + dwarf_r9, + dwarf_r10, + dwarf_r11, + dwarf_r12, + dwarf_r13, + dwarf_r14, + dwarf_r15, + dwarf_r16, + dwarf_r17, + dwarf_r18, + dwarf_r19, + dwarf_r20, + dwarf_r21, + dwarf_r22, + dwarf_r23, + dwarf_r24, + dwarf_r25, + dwarf_r26, + dwarf_r27, + dwarf_r28, + dwarf_r29, + dwarf_r30, + dwarf_r31, + dwarf_f0, + dwarf_f1, + dwarf_f2, + dwarf_f3, + dwarf_f4, + dwarf_f5, + dwarf_f6, + dwarf_f7, + dwarf_f8, + dwarf_f9, + dwarf_f10, + dwarf_f11, + dwarf_f12, + dwarf_f13, + dwarf_f14, + dwarf_f15, + dwarf_f16, + dwarf_f17, + dwarf_f18, + dwarf_f19, + dwarf_f20, + dwarf_f21, + dwarf_f22, + dwarf_f23, + dwarf_f24, + dwarf_f25, + dwarf_f26, + dwarf_f27, + dwarf_f28, + dwarf_f29, + dwarf_f30, + dwarf_f31, + dwarf_cr, + dwarf_fpscr, + dwarf_xer = 101, + dwarf_lr = 108, + dwarf_ctr, + dwarf_pc, + dwarf_cfa, }; // Note that the size and offset will be updated by platform-specific classes. -#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \ - { #reg, alt, 8, 0, eEncodingUint, \ - eFormatHex, { kind1, kind2, kind3, kind4}, nullptr, nullptr } - -static const RegisterInfo -g_register_infos[] = -{ - // General purpose registers. eh_frame, DWARF, Generic, Process Plugin - DEFINE_GPR(r0, nullptr, dwarf_r0, dwarf_r0, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r1, "sp", dwarf_r1, dwarf_r1, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM), - DEFINE_GPR(r2, nullptr, dwarf_r2, dwarf_r2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r3, "arg1", dwarf_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM), - DEFINE_GPR(r4, "arg2", dwarf_r4, dwarf_r4, LLDB_REGNUM_GENERIC_ARG2 ,LLDB_INVALID_REGNUM), - DEFINE_GPR(r5, "arg3", dwarf_r5, dwarf_r5, LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM), - DEFINE_GPR(r6, "arg4", dwarf_r6, dwarf_r6, LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM), - DEFINE_GPR(r7, "arg5", dwarf_r7, dwarf_r7, LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM), - DEFINE_GPR(r8, "arg6", dwarf_r8, dwarf_r8, LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM), - DEFINE_GPR(r9, "arg7", dwarf_r9, dwarf_r9, LLDB_REGNUM_GENERIC_ARG7, LLDB_INVALID_REGNUM), - DEFINE_GPR(r10, "arg8", dwarf_r10, dwarf_r10, LLDB_REGNUM_GENERIC_ARG8, LLDB_INVALID_REGNUM), - DEFINE_GPR(r11, nullptr, dwarf_r11, dwarf_r11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r12, nullptr, dwarf_r12, dwarf_r12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r13, nullptr, dwarf_r13, dwarf_r13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r14, nullptr, dwarf_r14, dwarf_r14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r15, nullptr, dwarf_r15, dwarf_r15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r16, nullptr, dwarf_r16, dwarf_r16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r17, nullptr, dwarf_r17, dwarf_r17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r18, nullptr, dwarf_r18, dwarf_r18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r19, nullptr, dwarf_r19, dwarf_r19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r20, nullptr, dwarf_r20, dwarf_r20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r21, nullptr, dwarf_r21, dwarf_r21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r22, nullptr, dwarf_r22, dwarf_r22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r23, nullptr, dwarf_r23, dwarf_r23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r24, nullptr, dwarf_r24, dwarf_r24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r25, nullptr, dwarf_r25, dwarf_r25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r26, nullptr, dwarf_r26, dwarf_r26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r27, nullptr, dwarf_r27, dwarf_r27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r28, nullptr, dwarf_r28, dwarf_r28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r29, nullptr, dwarf_r29, dwarf_r29, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r30, nullptr, dwarf_r30, dwarf_r30, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(r31, nullptr, dwarf_r31, dwarf_r31, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(lr, "lr", dwarf_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM), - DEFINE_GPR(cr, "cr", dwarf_cr, dwarf_cr, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM), - DEFINE_GPR(xer, "xer", dwarf_xer, dwarf_xer, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(ctr, "ctr", dwarf_ctr, dwarf_ctr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), - DEFINE_GPR(pc, "pc", dwarf_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM), - { nullptr, nullptr, 8, 0, eEncodingUint, eFormatHex, { dwarf_cfa, dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, nullptr, nullptr } -}; - -static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos); +#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \ + { \ + #reg, alt, 8, 0, eEncodingUint, eFormatHex, {kind1, kind2, kind3, kind4 }, \ + nullptr, nullptr, nullptr, 0 \ + } + +static const RegisterInfo g_register_infos[] = { + // General purpose registers. eh_frame, DWARF, + // Generic, Process Plugin + DEFINE_GPR(r0, nullptr, dwarf_r0, dwarf_r0, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r1, "sp", dwarf_r1, dwarf_r1, LLDB_REGNUM_GENERIC_SP, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r2, nullptr, dwarf_r2, dwarf_r2, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r3, "arg1", dwarf_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG1, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r4, "arg2", dwarf_r4, dwarf_r4, LLDB_REGNUM_GENERIC_ARG2, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r5, "arg3", dwarf_r5, dwarf_r5, LLDB_REGNUM_GENERIC_ARG3, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r6, "arg4", dwarf_r6, dwarf_r6, LLDB_REGNUM_GENERIC_ARG4, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r7, "arg5", dwarf_r7, dwarf_r7, LLDB_REGNUM_GENERIC_ARG5, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r8, "arg6", dwarf_r8, dwarf_r8, LLDB_REGNUM_GENERIC_ARG6, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r9, "arg7", dwarf_r9, dwarf_r9, LLDB_REGNUM_GENERIC_ARG7, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r10, "arg8", dwarf_r10, dwarf_r10, LLDB_REGNUM_GENERIC_ARG8, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r11, nullptr, dwarf_r11, dwarf_r11, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r12, nullptr, dwarf_r12, dwarf_r12, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r13, nullptr, dwarf_r13, dwarf_r13, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r14, nullptr, dwarf_r14, dwarf_r14, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r15, nullptr, dwarf_r15, dwarf_r15, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r16, nullptr, dwarf_r16, dwarf_r16, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r17, nullptr, dwarf_r17, dwarf_r17, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r18, nullptr, dwarf_r18, dwarf_r18, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r19, nullptr, dwarf_r19, dwarf_r19, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r20, nullptr, dwarf_r20, dwarf_r20, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r21, nullptr, dwarf_r21, dwarf_r21, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r22, nullptr, dwarf_r22, dwarf_r22, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r23, nullptr, dwarf_r23, dwarf_r23, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r24, nullptr, dwarf_r24, dwarf_r24, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r25, nullptr, dwarf_r25, dwarf_r25, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r26, nullptr, dwarf_r26, dwarf_r26, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r27, nullptr, dwarf_r27, dwarf_r27, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r28, nullptr, dwarf_r28, dwarf_r28, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r29, nullptr, dwarf_r29, dwarf_r29, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r30, nullptr, dwarf_r30, dwarf_r30, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(r31, nullptr, dwarf_r31, dwarf_r31, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(lr, "lr", dwarf_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, + LLDB_INVALID_REGNUM), + DEFINE_GPR(cr, "cr", dwarf_cr, dwarf_cr, LLDB_REGNUM_GENERIC_FLAGS, + LLDB_INVALID_REGNUM), + DEFINE_GPR(xer, "xer", dwarf_xer, dwarf_xer, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(ctr, "ctr", dwarf_ctr, dwarf_ctr, LLDB_INVALID_REGNUM, + LLDB_INVALID_REGNUM), + DEFINE_GPR(pc, "pc", dwarf_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, + LLDB_INVALID_REGNUM), + {nullptr, + nullptr, + 8, + 0, + eEncodingUint, + eFormatHex, + {dwarf_cfa, dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, + nullptr, + nullptr, + nullptr, + 0}}; + +static const uint32_t k_num_register_infos = + llvm::array_lengthof(g_register_infos); const lldb_private::RegisterInfo * -ABISysV_ppc64::GetRegisterInfoArray (uint32_t &count) -{ - count = k_num_register_infos; - return g_register_infos; +ABISysV_ppc64::GetRegisterInfoArray(uint32_t &count) { + count = k_num_register_infos; + return g_register_infos; } -size_t -ABISysV_ppc64::GetRedZoneSize () const -{ - return 224; -} +size_t ABISysV_ppc64::GetRedZoneSize() const { return 224; } //------------------------------------------------------------------ // Static Functions //------------------------------------------------------------------ ABISP -ABISysV_ppc64::CreateInstance (const ArchSpec &arch) -{ - static ABISP g_abi_sp; - if (arch.GetTriple().getArch() == llvm::Triple::ppc64) - { - if (!g_abi_sp) - g_abi_sp.reset (new ABISysV_ppc64); - return g_abi_sp; - } - return ABISP(); +ABISysV_ppc64::CreateInstance(const ArchSpec &arch) { + static ABISP g_abi_sp; + if (arch.GetTriple().getArch() == llvm::Triple::ppc64) { + if (!g_abi_sp) + g_abi_sp.reset(new ABISysV_ppc64); + return g_abi_sp; + } + return ABISP(); } -bool -ABISysV_ppc64::PrepareTrivialCall (Thread &thread, - addr_t sp, - addr_t func_addr, - addr_t return_addr, - llvm::ArrayRef<addr_t> args) const -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); +bool ABISysV_ppc64::PrepareTrivialCall(Thread &thread, addr_t sp, + addr_t func_addr, addr_t return_addr, + llvm::ArrayRef<addr_t> args) const { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); - if (log) - { - StreamString s; - s.Printf("ABISysV_ppc64::PrepareTrivialCall (tid = 0x%" PRIx64 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64 ", return_addr = 0x%" PRIx64, - thread.GetID(), - (uint64_t)sp, - (uint64_t)func_addr, - (uint64_t)return_addr); - - for (size_t i = 0; i < args.size(); ++i) - s.Printf (", arg%" PRIu64 " = 0x%" PRIx64, static_cast<uint64_t>(i + 1), args[i]); - s.PutCString (")"); - log->PutCString(s.GetString().c_str()); - } + if (log) { + StreamString s; + s.Printf("ABISysV_ppc64::PrepareTrivialCall (tid = 0x%" PRIx64 + ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64 + ", return_addr = 0x%" PRIx64, + thread.GetID(), (uint64_t)sp, (uint64_t)func_addr, + (uint64_t)return_addr); - RegisterContext *reg_ctx = thread.GetRegisterContext().get(); - if (!reg_ctx) - return false; + for (size_t i = 0; i < args.size(); ++i) + s.Printf(", arg%" PRIu64 " = 0x%" PRIx64, static_cast<uint64_t>(i + 1), + args[i]); + s.PutCString(")"); + log->PutString(s.GetString()); + } + + RegisterContext *reg_ctx = thread.GetRegisterContext().get(); + if (!reg_ctx) + return false; - const RegisterInfo *reg_info = nullptr; + const RegisterInfo *reg_info = nullptr; - if (args.size() > 8) // TODO handle more than 8 arguments - return false; + if (args.size() > 8) // TODO handle more than 8 arguments + return false; - for (size_t i = 0; i < args.size(); ++i) - { - reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i); - if (log) - log->Printf("About to write arg%" PRIu64 " (0x%" PRIx64 ") into %s", static_cast<uint64_t>(i + 1), args[i], reg_info->name); - if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i])) - return false; - } + for (size_t i = 0; i < args.size(); ++i) { + reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, + LLDB_REGNUM_GENERIC_ARG1 + i); + if (log) + log->Printf("About to write arg%" PRIu64 " (0x%" PRIx64 ") into %s", + static_cast<uint64_t>(i + 1), args[i], reg_info->name); + if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i])) + return false; + } - // First, align the SP + // First, align the SP - if (log) - log->Printf("16-byte aligning SP: 0x%" PRIx64 " to 0x%" PRIx64, (uint64_t)sp, (uint64_t)(sp & ~0xfull)); + if (log) + log->Printf("16-byte aligning SP: 0x%" PRIx64 " to 0x%" PRIx64, + (uint64_t)sp, (uint64_t)(sp & ~0xfull)); - sp &= ~(0xfull); // 16-byte alignment + sp &= ~(0xfull); // 16-byte alignment - sp -= 8; + sp -= 8; - Error error; - const RegisterInfo *pc_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC); - const RegisterInfo *sp_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP); - ProcessSP process_sp (thread.GetProcess()); + Error error; + const RegisterInfo *pc_reg_info = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC); + const RegisterInfo *sp_reg_info = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP); + ProcessSP process_sp(thread.GetProcess()); - RegisterValue reg_value; + RegisterValue reg_value; #if 0 // This code adds an extra frame so that we don't lose the function that we came from @@ -292,780 +332,696 @@ ABISysV_ppc64::PrepareTrivialCall (Thread &thread, } #endif - if (log) - log->Printf("Pushing the return address onto the stack: 0x%" PRIx64 ": 0x%" PRIx64, (uint64_t)sp, (uint64_t)return_addr); + if (log) + log->Printf("Pushing the return address onto the stack: 0x%" PRIx64 + ": 0x%" PRIx64, + (uint64_t)sp, (uint64_t)return_addr); - // Save return address onto the stack - if (!process_sp->WritePointerToMemory(sp, return_addr, error)) - return false; + // Save return address onto the stack + if (!process_sp->WritePointerToMemory(sp, return_addr, error)) + return false; - // %r1 is set to the actual stack value. + // %r1 is set to the actual stack value. - if (log) - log->Printf("Writing SP: 0x%" PRIx64, (uint64_t)sp); + if (log) + log->Printf("Writing SP: 0x%" PRIx64, (uint64_t)sp); - if (!reg_ctx->WriteRegisterFromUnsigned (sp_reg_info, sp)) - return false; + if (!reg_ctx->WriteRegisterFromUnsigned(sp_reg_info, sp)) + return false; - // %pc is set to the address of the called function. + // %pc is set to the address of the called function. - if (log) - log->Printf("Writing IP: 0x%" PRIx64, (uint64_t)func_addr); + if (log) + log->Printf("Writing IP: 0x%" PRIx64, (uint64_t)func_addr); - if (!reg_ctx->WriteRegisterFromUnsigned (pc_reg_info, func_addr)) - return false; + if (!reg_ctx->WriteRegisterFromUnsigned(pc_reg_info, func_addr)) + return false; - return true; + return true; } -static bool ReadIntegerArgument(Scalar &scalar, - unsigned int bit_width, - bool is_signed, - Thread &thread, - uint32_t *argument_register_ids, - unsigned int ¤t_argument_register, - addr_t ¤t_stack_argument) -{ - if (bit_width > 64) - return false; // Scalar can't hold large integer arguments - - if (current_argument_register < 6) - { - scalar = thread.GetRegisterContext()->ReadRegisterAsUnsigned(argument_register_ids[current_argument_register], 0); - current_argument_register++; - if (is_signed) - scalar.SignExtend (bit_width); - } - else - { - uint32_t byte_size = (bit_width + (8-1))/8; - Error error; - if (thread.GetProcess()->ReadScalarIntegerFromMemory(current_stack_argument, byte_size, is_signed, scalar, error)) - { - current_stack_argument += byte_size; - return true; - } - return false; +static bool ReadIntegerArgument(Scalar &scalar, unsigned int bit_width, + bool is_signed, Thread &thread, + uint32_t *argument_register_ids, + unsigned int ¤t_argument_register, + addr_t ¤t_stack_argument) { + if (bit_width > 64) + return false; // Scalar can't hold large integer arguments + + if (current_argument_register < 6) { + scalar = thread.GetRegisterContext()->ReadRegisterAsUnsigned( + argument_register_ids[current_argument_register], 0); + current_argument_register++; + if (is_signed) + scalar.SignExtend(bit_width); + } else { + uint32_t byte_size = (bit_width + (8 - 1)) / 8; + Error error; + if (thread.GetProcess()->ReadScalarIntegerFromMemory( + current_stack_argument, byte_size, is_signed, scalar, error)) { + current_stack_argument += byte_size; + return true; } - return true; + return false; + } + return true; } -bool -ABISysV_ppc64::GetArgumentValues (Thread &thread, - ValueList &values) const -{ - unsigned int num_values = values.GetSize(); - unsigned int value_index; - - // Extract the register context so we can read arguments from registers +bool ABISysV_ppc64::GetArgumentValues(Thread &thread, ValueList &values) const { + unsigned int num_values = values.GetSize(); + unsigned int value_index; - RegisterContext *reg_ctx = thread.GetRegisterContext().get(); + // Extract the register context so we can read arguments from registers - if (!reg_ctx) - return false; - - // Get the pointer to the first stack argument so we have a place to start - // when reading data - - addr_t sp = reg_ctx->GetSP(0); - - if (!sp) - return false; + RegisterContext *reg_ctx = thread.GetRegisterContext().get(); - addr_t current_stack_argument = sp + 48; // jump over return address - - uint32_t argument_register_ids[8]; + if (!reg_ctx) + return false; - argument_register_ids[0] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1)->kinds[eRegisterKindLLDB]; - argument_register_ids[1] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2)->kinds[eRegisterKindLLDB]; - argument_register_ids[2] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG3)->kinds[eRegisterKindLLDB]; - argument_register_ids[3] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG4)->kinds[eRegisterKindLLDB]; - argument_register_ids[4] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG5)->kinds[eRegisterKindLLDB]; - argument_register_ids[5] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG6)->kinds[eRegisterKindLLDB]; - argument_register_ids[6] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG7)->kinds[eRegisterKindLLDB]; - argument_register_ids[7] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG8)->kinds[eRegisterKindLLDB]; + // Get the pointer to the first stack argument so we have a place to start + // when reading data - unsigned int current_argument_register = 0; + addr_t sp = reg_ctx->GetSP(0); - for (value_index = 0; - value_index < num_values; - ++value_index) - { - Value *value = values.GetValueAtIndex(value_index); - - if (!value) - return false; + if (!sp) + return false; - // We currently only support extracting values with Clang QualTypes. - // Do we care about others? - CompilerType compiler_type = value->GetCompilerType(); - if (!compiler_type) - return false; - bool is_signed; + addr_t current_stack_argument = sp + 48; // jump over return address + + uint32_t argument_register_ids[8]; + + argument_register_ids[0] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[1] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[2] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG3) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[3] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG4) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[4] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG5) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[5] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG6) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[6] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG7) + ->kinds[eRegisterKindLLDB]; + argument_register_ids[7] = + reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG8) + ->kinds[eRegisterKindLLDB]; + + unsigned int current_argument_register = 0; + + for (value_index = 0; value_index < num_values; ++value_index) { + Value *value = values.GetValueAtIndex(value_index); + + if (!value) + return false; + + // We currently only support extracting values with Clang QualTypes. + // Do we care about others? + CompilerType compiler_type = value->GetCompilerType(); + if (!compiler_type) + return false; + bool is_signed; - if (compiler_type.IsIntegerOrEnumerationType (is_signed)) - { - ReadIntegerArgument(value->GetScalar(), - compiler_type.GetBitSize(&thread), - is_signed, - thread, - argument_register_ids, - current_argument_register, - current_stack_argument); - } - else if (compiler_type.IsPointerType ()) - { - ReadIntegerArgument(value->GetScalar(), - compiler_type.GetBitSize(&thread), - false, - thread, - argument_register_ids, - current_argument_register, - current_stack_argument); - } + if (compiler_type.IsIntegerOrEnumerationType(is_signed)) { + ReadIntegerArgument(value->GetScalar(), compiler_type.GetBitSize(&thread), + is_signed, thread, argument_register_ids, + current_argument_register, current_stack_argument); + } else if (compiler_type.IsPointerType()) { + ReadIntegerArgument(value->GetScalar(), compiler_type.GetBitSize(&thread), + false, thread, argument_register_ids, + current_argument_register, current_stack_argument); } + } - return true; + return true; } -Error -ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp) -{ - Error error; - if (!new_value_sp) - { - error.SetErrorString("Empty value object for return value."); - return error; - } +Error ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, + lldb::ValueObjectSP &new_value_sp) { + Error error; + if (!new_value_sp) { + error.SetErrorString("Empty value object for return value."); + return error; + } - CompilerType compiler_type = new_value_sp->GetCompilerType(); - if (!compiler_type) - { - error.SetErrorString ("Null clang type for return value."); - return error; - } + CompilerType compiler_type = new_value_sp->GetCompilerType(); + if (!compiler_type) { + error.SetErrorString("Null clang type for return value."); + return error; + } - Thread *thread = frame_sp->GetThread().get(); + Thread *thread = frame_sp->GetThread().get(); - bool is_signed; - uint32_t count; - bool is_complex; + bool is_signed; + uint32_t count; + bool is_complex; - RegisterContext *reg_ctx = thread->GetRegisterContext().get(); + RegisterContext *reg_ctx = thread->GetRegisterContext().get(); - bool set_it_simple = false; - if (compiler_type.IsIntegerOrEnumerationType (is_signed) || compiler_type.IsPointerType()) - { - const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3", 0); + bool set_it_simple = false; + if (compiler_type.IsIntegerOrEnumerationType(is_signed) || + compiler_type.IsPointerType()) { + const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3", 0); + DataExtractor data; + Error data_error; + size_t num_bytes = new_value_sp->GetData(data, data_error); + if (data_error.Fail()) { + error.SetErrorStringWithFormat( + "Couldn't convert return value to raw data: %s", + data_error.AsCString()); + return error; + } + lldb::offset_t offset = 0; + if (num_bytes <= 8) { + uint64_t raw_value = data.GetMaxU64(&offset, num_bytes); + + if (reg_ctx->WriteRegisterFromUnsigned(reg_info, raw_value)) + set_it_simple = true; + } else { + error.SetErrorString("We don't support returning longer than 64 bit " + "integer values at present."); + } + } else if (compiler_type.IsFloatingPointType(count, is_complex)) { + if (is_complex) + error.SetErrorString( + "We don't support returning complex values at present"); + else { + size_t bit_width = compiler_type.GetBitSize(frame_sp.get()); + if (bit_width <= 64) { DataExtractor data; Error data_error; size_t num_bytes = new_value_sp->GetData(data, data_error); - if (data_error.Fail()) - { - error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString()); - return error; + if (data_error.Fail()) { + error.SetErrorStringWithFormat( + "Couldn't convert return value to raw data: %s", + data_error.AsCString()); + return error; } - lldb::offset_t offset = 0; - if (num_bytes <= 8) - { - uint64_t raw_value = data.GetMaxU64(&offset, num_bytes); - if (reg_ctx->WriteRegisterFromUnsigned (reg_info, raw_value)) - set_it_simple = true; - } - else - { - error.SetErrorString("We don't support returning longer than 64 bit integer values at present."); - } - } - else if (compiler_type.IsFloatingPointType (count, is_complex)) - { - if (is_complex) - error.SetErrorString ("We don't support returning complex values at present"); - else - { - size_t bit_width = compiler_type.GetBitSize(frame_sp.get()); - if (bit_width <= 64) - { - DataExtractor data; - Error data_error; - size_t num_bytes = new_value_sp->GetData(data, data_error); - if (data_error.Fail()) - { - error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString()); - return error; - } - - unsigned char buffer[16]; - ByteOrder byte_order = data.GetByteOrder(); + unsigned char buffer[16]; + ByteOrder byte_order = data.GetByteOrder(); - data.CopyByteOrderedData (0, num_bytes, buffer, 16, byte_order); - set_it_simple = true; - } - else - { - // FIXME - don't know how to do 80 bit long doubles yet. - error.SetErrorString ("We don't support returning float values > 64 bits at present"); - } - } + data.CopyByteOrderedData(0, num_bytes, buffer, 16, byte_order); + set_it_simple = true; + } else { + // FIXME - don't know how to do 80 bit long doubles yet. + error.SetErrorString( + "We don't support returning float values > 64 bits at present"); + } } + } - if (!set_it_simple) - { - // Okay we've got a structure or something that doesn't fit in a simple register. - // We should figure out where it really goes, but we don't support this yet. - error.SetErrorString ("We only support setting simple integer and float return types at present."); - } + if (!set_it_simple) { + // Okay we've got a structure or something that doesn't fit in a simple + // register. + // We should figure out where it really goes, but we don't support this yet. + error.SetErrorString("We only support setting simple integer and float " + "return types at present."); + } - return error; + return error; } -ValueObjectSP -ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread, - CompilerType &return_compiler_type) const -{ - ValueObjectSP return_valobj_sp; - Value value; +ValueObjectSP ABISysV_ppc64::GetReturnValueObjectSimple( + Thread &thread, CompilerType &return_compiler_type) const { + ValueObjectSP return_valobj_sp; + Value value; - if (!return_compiler_type) - return return_valobj_sp; + if (!return_compiler_type) + return return_valobj_sp; - //value.SetContext (Value::eContextTypeClangType, return_value_type); - value.SetCompilerType (return_compiler_type); + // value.SetContext (Value::eContextTypeClangType, return_value_type); + value.SetCompilerType(return_compiler_type); - RegisterContext *reg_ctx = thread.GetRegisterContext().get(); - if (!reg_ctx) - return return_valobj_sp; + RegisterContext *reg_ctx = thread.GetRegisterContext().get(); + if (!reg_ctx) + return return_valobj_sp; - const uint32_t type_flags = return_compiler_type.GetTypeInfo (); - if (type_flags & eTypeIsScalar) - { - value.SetValueType(Value::eValueTypeScalar); + const uint32_t type_flags = return_compiler_type.GetTypeInfo(); + if (type_flags & eTypeIsScalar) { + value.SetValueType(Value::eValueTypeScalar); - bool success = false; - if (type_flags & eTypeIsInteger) - { - // Extract the register context so we can read arguments from registers - - const size_t byte_size = return_compiler_type.GetByteSize(nullptr); - uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r3", 0), 0); - const bool is_signed = (type_flags & eTypeIsSigned) != 0; - switch (byte_size) - { - default: - break; - - case sizeof(uint64_t): - if (is_signed) - value.GetScalar() = (int64_t)(raw_value); - else - value.GetScalar() = (uint64_t)(raw_value); - success = true; - break; + bool success = false; + if (type_flags & eTypeIsInteger) { + // Extract the register context so we can read arguments from registers - case sizeof(uint32_t): - if (is_signed) - value.GetScalar() = (int32_t)(raw_value & UINT32_MAX); - else - value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX); - success = true; - break; + const size_t byte_size = return_compiler_type.GetByteSize(nullptr); + uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned( + reg_ctx->GetRegisterInfoByName("r3", 0), 0); + const bool is_signed = (type_flags & eTypeIsSigned) != 0; + switch (byte_size) { + default: + break; - case sizeof(uint16_t): - if (is_signed) - value.GetScalar() = (int16_t)(raw_value & UINT16_MAX); - else - value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX); - success = true; - break; + case sizeof(uint64_t): + if (is_signed) + value.GetScalar() = (int64_t)(raw_value); + else + value.GetScalar() = (uint64_t)(raw_value); + success = true; + break; - case sizeof(uint8_t): - if (is_signed) - value.GetScalar() = (int8_t)(raw_value & UINT8_MAX); - else - value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX); + case sizeof(uint32_t): + if (is_signed) + value.GetScalar() = (int32_t)(raw_value & UINT32_MAX); + else + value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX); + success = true; + break; + + case sizeof(uint16_t): + if (is_signed) + value.GetScalar() = (int16_t)(raw_value & UINT16_MAX); + else + value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX); + success = true; + break; + + case sizeof(uint8_t): + if (is_signed) + value.GetScalar() = (int8_t)(raw_value & UINT8_MAX); + else + value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX); + success = true; + break; + } + } else if (type_flags & eTypeIsFloat) { + if (type_flags & eTypeIsComplex) { + // Don't handle complex yet. + } else { + const size_t byte_size = return_compiler_type.GetByteSize(nullptr); + if (byte_size <= sizeof(long double)) { + const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0); + RegisterValue f1_value; + if (reg_ctx->ReadRegister(f1_info, f1_value)) { + DataExtractor data; + if (f1_value.GetData(data)) { + lldb::offset_t offset = 0; + if (byte_size == sizeof(float)) { + value.GetScalar() = (float)data.GetFloat(&offset); success = true; - break; - } - } - else if (type_flags & eTypeIsFloat) - { - if (type_flags & eTypeIsComplex) - { - // Don't handle complex yet. - } - else - { - const size_t byte_size = return_compiler_type.GetByteSize(nullptr); - if (byte_size <= sizeof(long double)) - { - const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0); - RegisterValue f1_value; - if (reg_ctx->ReadRegister (f1_info, f1_value)) - { - DataExtractor data; - if (f1_value.GetData(data)) - { - lldb::offset_t offset = 0; - if (byte_size == sizeof(float)) - { - value.GetScalar() = (float) data.GetFloat(&offset); - success = true; - } - else if (byte_size == sizeof(double)) - { - value.GetScalar() = (double) data.GetDouble(&offset); - success = true; - } - } - } - } + } else if (byte_size == sizeof(double)) { + value.GetScalar() = (double)data.GetDouble(&offset); + success = true; + } } + } } - - if (success) - return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(), - value, - ConstString("")); - } - else if (type_flags & eTypeIsPointer) - { - unsigned r3_id = reg_ctx->GetRegisterInfoByName("r3", 0)->kinds[eRegisterKindLLDB]; - value.GetScalar() = (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(r3_id, 0); - value.SetValueType(Value::eValueTypeScalar); - return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(), - value, - ConstString("")); + } } - else if (type_flags & eTypeIsVector) - { - const size_t byte_size = return_compiler_type.GetByteSize(nullptr); - if (byte_size > 0) - { - const RegisterInfo *altivec_reg = reg_ctx->GetRegisterInfoByName("v2", 0); - if (altivec_reg) - { - if (byte_size <= altivec_reg->byte_size) - { - ProcessSP process_sp (thread.GetProcess()); - if (process_sp) - { - std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0)); - const ByteOrder byte_order = process_sp->GetByteOrder(); - RegisterValue reg_value; - if (reg_ctx->ReadRegister(altivec_reg, reg_value)) - { - Error error; - if (reg_value.GetAsMemoryData (altivec_reg, - heap_data_ap->GetBytes(), - heap_data_ap->GetByteSize(), - byte_order, - error)) - { - DataExtractor data (DataBufferSP (heap_data_ap.release()), - byte_order, - process_sp->GetTarget().GetArchitecture().GetAddressByteSize()); - return_valobj_sp = ValueObjectConstResult::Create (&thread, - return_compiler_type, - ConstString(""), - data); - } - } - } - } + + if (success) + return_valobj_sp = ValueObjectConstResult::Create( + thread.GetStackFrameAtIndex(0).get(), value, ConstString("")); + } else if (type_flags & eTypeIsPointer) { + unsigned r3_id = + reg_ctx->GetRegisterInfoByName("r3", 0)->kinds[eRegisterKindLLDB]; + value.GetScalar() = + (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(r3_id, 0); + value.SetValueType(Value::eValueTypeScalar); + return_valobj_sp = ValueObjectConstResult::Create( + thread.GetStackFrameAtIndex(0).get(), value, ConstString("")); + } else if (type_flags & eTypeIsVector) { + const size_t byte_size = return_compiler_type.GetByteSize(nullptr); + if (byte_size > 0) { + const RegisterInfo *altivec_reg = reg_ctx->GetRegisterInfoByName("v2", 0); + if (altivec_reg) { + if (byte_size <= altivec_reg->byte_size) { + ProcessSP process_sp(thread.GetProcess()); + if (process_sp) { + std::unique_ptr<DataBufferHeap> heap_data_ap( + new DataBufferHeap(byte_size, 0)); + const ByteOrder byte_order = process_sp->GetByteOrder(); + RegisterValue reg_value; + if (reg_ctx->ReadRegister(altivec_reg, reg_value)) { + Error error; + if (reg_value.GetAsMemoryData( + altivec_reg, heap_data_ap->GetBytes(), + heap_data_ap->GetByteSize(), byte_order, error)) { + DataExtractor data(DataBufferSP(heap_data_ap.release()), + byte_order, process_sp->GetTarget() + .GetArchitecture() + .GetAddressByteSize()); + return_valobj_sp = ValueObjectConstResult::Create( + &thread, return_compiler_type, ConstString(""), data); + } } + } } + } } + } - return return_valobj_sp; + return return_valobj_sp; } -ValueObjectSP -ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const -{ - ValueObjectSP return_valobj_sp; +ValueObjectSP ABISysV_ppc64::GetReturnValueObjectImpl( + Thread &thread, CompilerType &return_compiler_type) const { + ValueObjectSP return_valobj_sp; - if (!return_compiler_type) - return return_valobj_sp; + if (!return_compiler_type) + return return_valobj_sp; - ExecutionContext exe_ctx (thread.shared_from_this()); - return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type); - if (return_valobj_sp) - return return_valobj_sp; + ExecutionContext exe_ctx(thread.shared_from_this()); + return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type); + if (return_valobj_sp) + return return_valobj_sp; - RegisterContextSP reg_ctx_sp = thread.GetRegisterContext(); - if (!reg_ctx_sp) - return return_valobj_sp; + RegisterContextSP reg_ctx_sp = thread.GetRegisterContext(); + if (!reg_ctx_sp) + return return_valobj_sp; - const size_t bit_width = return_compiler_type.GetBitSize(&thread); - if (return_compiler_type.IsAggregateType()) - { - Target *target = exe_ctx.GetTargetPtr(); - bool is_memory = true; - if (bit_width <= 128) - { - ByteOrder target_byte_order = target->GetArchitecture().GetByteOrder(); - DataBufferSP data_sp (new DataBufferHeap(16, 0)); - DataExtractor return_ext (data_sp, - target_byte_order, - target->GetArchitecture().GetAddressByteSize()); + const size_t bit_width = return_compiler_type.GetBitSize(&thread); + if (return_compiler_type.IsAggregateType()) { + Target *target = exe_ctx.GetTargetPtr(); + bool is_memory = true; + if (bit_width <= 128) { + ByteOrder target_byte_order = target->GetArchitecture().GetByteOrder(); + DataBufferSP data_sp(new DataBufferHeap(16, 0)); + DataExtractor return_ext(data_sp, target_byte_order, + target->GetArchitecture().GetAddressByteSize()); - const RegisterInfo *r3_info = reg_ctx_sp->GetRegisterInfoByName("r3", 0); - const RegisterInfo *rdx_info = reg_ctx_sp->GetRegisterInfoByName("rdx", 0); + const RegisterInfo *r3_info = reg_ctx_sp->GetRegisterInfoByName("r3", 0); + const RegisterInfo *rdx_info = + reg_ctx_sp->GetRegisterInfoByName("rdx", 0); - RegisterValue r3_value, rdx_value; - reg_ctx_sp->ReadRegister (r3_info, r3_value); - reg_ctx_sp->ReadRegister (rdx_info, rdx_value); + RegisterValue r3_value, rdx_value; + reg_ctx_sp->ReadRegister(r3_info, r3_value); + reg_ctx_sp->ReadRegister(rdx_info, rdx_value); - DataExtractor r3_data, rdx_data; + DataExtractor r3_data, rdx_data; - r3_value.GetData(r3_data); - rdx_value.GetData(rdx_data); + r3_value.GetData(r3_data); + rdx_value.GetData(rdx_data); - uint32_t fp_bytes = 0; // Tracks how much of the xmm registers we've consumed so far - uint32_t integer_bytes = 0; // Tracks how much of the r3/rds registers we've consumed so far + uint32_t fp_bytes = + 0; // Tracks how much of the xmm registers we've consumed so far + uint32_t integer_bytes = + 0; // Tracks how much of the r3/rds registers we've consumed so far - const uint32_t num_children = return_compiler_type.GetNumFields (); + const uint32_t num_children = return_compiler_type.GetNumFields(); - // Since we are in the small struct regime, assume we are not in memory. - is_memory = false; + // Since we are in the small struct regime, assume we are not in memory. + is_memory = false; - for (uint32_t idx = 0; idx < num_children; idx++) - { - std::string name; - uint64_t field_bit_offset = 0; - bool is_signed; - bool is_complex; - uint32_t count; + for (uint32_t idx = 0; idx < num_children; idx++) { + std::string name; + uint64_t field_bit_offset = 0; + bool is_signed; + bool is_complex; + uint32_t count; - CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex(idx, name, &field_bit_offset, nullptr, nullptr); - const size_t field_bit_width = field_compiler_type.GetBitSize(&thread); + CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex( + idx, name, &field_bit_offset, nullptr, nullptr); + const size_t field_bit_width = field_compiler_type.GetBitSize(&thread); - // If there are any unaligned fields, this is stored in memory. - if (field_bit_offset % field_bit_width != 0) - { - is_memory = true; - break; - } + // If there are any unaligned fields, this is stored in memory. + if (field_bit_offset % field_bit_width != 0) { + is_memory = true; + break; + } - uint32_t field_byte_width = field_bit_width/8; - uint32_t field_byte_offset = field_bit_offset/8; - - DataExtractor *copy_from_extractor = nullptr; - uint32_t copy_from_offset = 0; - - if (field_compiler_type.IsIntegerOrEnumerationType (is_signed) || field_compiler_type.IsPointerType ()) - { - if (integer_bytes < 8) - { - if (integer_bytes + field_byte_width <= 8) - { - // This is in RAX, copy from register to our result structure: - copy_from_extractor = &r3_data; - copy_from_offset = integer_bytes; - integer_bytes += field_byte_width; - } - else - { - // The next field wouldn't fit in the remaining space, so we pushed it to rdx. - copy_from_extractor = &rdx_data; - copy_from_offset = 0; - integer_bytes = 8 + field_byte_width; - - } - } - else if (integer_bytes + field_byte_width <= 16) - { - copy_from_extractor = &rdx_data; - copy_from_offset = integer_bytes - 8; - integer_bytes += field_byte_width; - } - else - { - // The last field didn't fit. I can't see how that would happen w/o the overall size being - // greater than 16 bytes. For now, return a nullptr return value object. - return return_valobj_sp; - } + uint32_t field_byte_width = field_bit_width / 8; + uint32_t field_byte_offset = field_bit_offset / 8; + + DataExtractor *copy_from_extractor = nullptr; + uint32_t copy_from_offset = 0; + + if (field_compiler_type.IsIntegerOrEnumerationType(is_signed) || + field_compiler_type.IsPointerType()) { + if (integer_bytes < 8) { + if (integer_bytes + field_byte_width <= 8) { + // This is in RAX, copy from register to our result structure: + copy_from_extractor = &r3_data; + copy_from_offset = integer_bytes; + integer_bytes += field_byte_width; + } else { + // The next field wouldn't fit in the remaining space, so we + // pushed it to rdx. + copy_from_extractor = &rdx_data; + copy_from_offset = 0; + integer_bytes = 8 + field_byte_width; + } + } else if (integer_bytes + field_byte_width <= 16) { + copy_from_extractor = &rdx_data; + copy_from_offset = integer_bytes - 8; + integer_bytes += field_byte_width; + } else { + // The last field didn't fit. I can't see how that would happen w/o + // the overall size being + // greater than 16 bytes. For now, return a nullptr return value + // object. + return return_valobj_sp; + } + } else if (field_compiler_type.IsFloatingPointType(count, is_complex)) { + // Structs with long doubles are always passed in memory. + if (field_bit_width == 128) { + is_memory = true; + break; + } else if (field_bit_width == 64) { + copy_from_offset = 0; + fp_bytes += field_byte_width; + } else if (field_bit_width == 32) { + // This one is kind of complicated. If we are in an "eightbyte" + // with another float, we'll + // be stuffed into an xmm register with it. If we are in an + // "eightbyte" with one or more ints, + // then we will be stuffed into the appropriate GPR with them. + bool in_gpr; + if (field_byte_offset % 8 == 0) { + // We are at the beginning of one of the eightbytes, so check the + // next element (if any) + if (idx == num_children - 1) + in_gpr = false; + else { + uint64_t next_field_bit_offset = 0; + CompilerType next_field_compiler_type = + return_compiler_type.GetFieldAtIndex(idx + 1, name, + &next_field_bit_offset, + nullptr, nullptr); + if (next_field_compiler_type.IsIntegerOrEnumerationType( + is_signed)) + in_gpr = true; + else { + copy_from_offset = 0; + in_gpr = false; } - else if (field_compiler_type.IsFloatingPointType (count, is_complex)) - { - // Structs with long doubles are always passed in memory. - if (field_bit_width == 128) - { - is_memory = true; - break; - } - else if (field_bit_width == 64) - { - copy_from_offset = 0; - fp_bytes += field_byte_width; - } - else if (field_bit_width == 32) - { - // This one is kind of complicated. If we are in an "eightbyte" with another float, we'll - // be stuffed into an xmm register with it. If we are in an "eightbyte" with one or more ints, - // then we will be stuffed into the appropriate GPR with them. - bool in_gpr; - if (field_byte_offset % 8 == 0) - { - // We are at the beginning of one of the eightbytes, so check the next element (if any) - if (idx == num_children - 1) - in_gpr = false; - else - { - uint64_t next_field_bit_offset = 0; - CompilerType next_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx + 1, - name, - &next_field_bit_offset, - nullptr, - nullptr); - if (next_field_compiler_type.IsIntegerOrEnumerationType (is_signed)) - in_gpr = true; - else - { - copy_from_offset = 0; - in_gpr = false; - } - } - } - else if (field_byte_offset % 4 == 0) - { - // We are inside of an eightbyte, so see if the field before us is floating point: - // This could happen if somebody put padding in the structure. - if (idx == 0) - in_gpr = false; - else - { - uint64_t prev_field_bit_offset = 0; - CompilerType prev_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx - 1, - name, - &prev_field_bit_offset, - nullptr, - nullptr); - if (prev_field_compiler_type.IsIntegerOrEnumerationType (is_signed)) - in_gpr = true; - else - { - copy_from_offset = 4; - in_gpr = false; - } - } - } - else - { - is_memory = true; - continue; - } - - // Okay, we've figured out whether we are in GPR or XMM, now figure out which one. - if (in_gpr) - { - if (integer_bytes < 8) - { - // This is in RAX, copy from register to our result structure: - copy_from_extractor = &r3_data; - copy_from_offset = integer_bytes; - integer_bytes += field_byte_width; - } - else - { - copy_from_extractor = &rdx_data; - copy_from_offset = integer_bytes - 8; - integer_bytes += field_byte_width; - } - } - else - { - fp_bytes += field_byte_width; - } - } + } + } else if (field_byte_offset % 4 == 0) { + // We are inside of an eightbyte, so see if the field before us is + // floating point: + // This could happen if somebody put padding in the structure. + if (idx == 0) + in_gpr = false; + else { + uint64_t prev_field_bit_offset = 0; + CompilerType prev_field_compiler_type = + return_compiler_type.GetFieldAtIndex(idx - 1, name, + &prev_field_bit_offset, + nullptr, nullptr); + if (prev_field_compiler_type.IsIntegerOrEnumerationType( + is_signed)) + in_gpr = true; + else { + copy_from_offset = 4; + in_gpr = false; } - - // These two tests are just sanity checks. If I somehow get the - // type calculation wrong above it is better to just return nothing - // than to assert or crash. - if (!copy_from_extractor) - return return_valobj_sp; - if (copy_from_offset + field_byte_width > copy_from_extractor->GetByteSize()) - return return_valobj_sp; - - copy_from_extractor->CopyByteOrderedData (copy_from_offset, - field_byte_width, - data_sp->GetBytes() + field_byte_offset, - field_byte_width, - target_byte_order); + } + } else { + is_memory = true; + continue; } - if (!is_memory) - { - // The result is in our data buffer. Let's make a variable object out of it: - return_valobj_sp = ValueObjectConstResult::Create (&thread, - return_compiler_type, - ConstString(""), - return_ext); + // Okay, we've figured out whether we are in GPR or XMM, now figure + // out which one. + if (in_gpr) { + if (integer_bytes < 8) { + // This is in RAX, copy from register to our result structure: + copy_from_extractor = &r3_data; + copy_from_offset = integer_bytes; + integer_bytes += field_byte_width; + } else { + copy_from_extractor = &rdx_data; + copy_from_offset = integer_bytes - 8; + integer_bytes += field_byte_width; + } + } else { + fp_bytes += field_byte_width; } + } } - // FIXME: This is just taking a guess, r3 may very well no longer hold the return storage location. - // If we are going to do this right, when we make a new frame we should check to see if it uses a memory - // return, and if we are at the first instruction and if so stash away the return location. Then we would - // only return the memory return value if we know it is valid. + // These two tests are just sanity checks. If I somehow get the + // type calculation wrong above it is better to just return nothing + // than to assert or crash. + if (!copy_from_extractor) + return return_valobj_sp; + if (copy_from_offset + field_byte_width > + copy_from_extractor->GetByteSize()) + return return_valobj_sp; + + copy_from_extractor->CopyByteOrderedData( + copy_from_offset, field_byte_width, + data_sp->GetBytes() + field_byte_offset, field_byte_width, + target_byte_order); + } + + if (!is_memory) { + // The result is in our data buffer. Let's make a variable object out + // of it: + return_valobj_sp = ValueObjectConstResult::Create( + &thread, return_compiler_type, ConstString(""), return_ext); + } + } - if (is_memory) - { - unsigned r3_id = reg_ctx_sp->GetRegisterInfoByName("r3", 0)->kinds[eRegisterKindLLDB]; - lldb::addr_t storage_addr = (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(r3_id, 0); - return_valobj_sp = ValueObjectMemory::Create(&thread, - "", - Address(storage_addr, nullptr), - return_compiler_type); - } + // FIXME: This is just taking a guess, r3 may very well no longer hold the + // return storage location. + // If we are going to do this right, when we make a new frame we should + // check to see if it uses a memory + // return, and if we are at the first instruction and if so stash away the + // return location. Then we would + // only return the memory return value if we know it is valid. + + if (is_memory) { + unsigned r3_id = + reg_ctx_sp->GetRegisterInfoByName("r3", 0)->kinds[eRegisterKindLLDB]; + lldb::addr_t storage_addr = + (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(r3_id, + 0); + return_valobj_sp = ValueObjectMemory::Create( + &thread, "", Address(storage_addr, nullptr), return_compiler_type); } + } - return return_valobj_sp; + return return_valobj_sp; } -bool -ABISysV_ppc64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan) -{ - unwind_plan.Clear(); - unwind_plan.SetRegisterKind (eRegisterKindDWARF); +bool ABISysV_ppc64::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) { + unwind_plan.Clear(); + unwind_plan.SetRegisterKind(eRegisterKindDWARF); - uint32_t lr_reg_num = dwarf_lr; - uint32_t sp_reg_num = dwarf_r1; - uint32_t pc_reg_num = dwarf_pc; + uint32_t lr_reg_num = dwarf_lr; + uint32_t sp_reg_num = dwarf_r1; + uint32_t pc_reg_num = dwarf_pc; - UnwindPlan::RowSP row(new UnwindPlan::Row); + UnwindPlan::RowSP row(new UnwindPlan::Row); - // Our Call Frame Address is the stack pointer value - row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0); + // Our Call Frame Address is the stack pointer value + row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0); - // The previous PC is in the LR - row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true); - unwind_plan.AppendRow (row); + // The previous PC is in the LR + row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true); + unwind_plan.AppendRow(row); - // All other registers are the same. + // All other registers are the same. - unwind_plan.SetSourceName ("ppc64 at-func-entry default"); - unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); + unwind_plan.SetSourceName("ppc64 at-func-entry default"); + unwind_plan.SetSourcedFromCompiler(eLazyBoolNo); - return true; + return true; } -bool -ABISysV_ppc64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan) -{ - unwind_plan.Clear(); - unwind_plan.SetRegisterKind (eRegisterKindDWARF); +bool ABISysV_ppc64::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) { + unwind_plan.Clear(); + unwind_plan.SetRegisterKind(eRegisterKindDWARF); - uint32_t sp_reg_num = dwarf_r1; - uint32_t pc_reg_num = dwarf_lr; + uint32_t sp_reg_num = dwarf_r1; + uint32_t pc_reg_num = dwarf_lr; - UnwindPlan::RowSP row(new UnwindPlan::Row); + UnwindPlan::RowSP row(new UnwindPlan::Row); - const int32_t ptr_size = 8; - row->GetCFAValue().SetIsRegisterDereferenced(sp_reg_num); + const int32_t ptr_size = 8; + row->GetCFAValue().SetIsRegisterDereferenced(sp_reg_num); - row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * 2, true); - row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true); - row->SetRegisterLocationToAtCFAPlusOffset(dwarf_cr, ptr_size, true); + row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * 2, true); + row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true); + row->SetRegisterLocationToAtCFAPlusOffset(dwarf_cr, ptr_size, true); - unwind_plan.AppendRow (row); - unwind_plan.SetSourceName ("ppc64 default unwind plan"); - unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); - unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo); - unwind_plan.SetReturnAddressRegister(dwarf_lr); - return true; + unwind_plan.AppendRow(row); + unwind_plan.SetSourceName("ppc64 default unwind plan"); + unwind_plan.SetSourcedFromCompiler(eLazyBoolNo); + unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo); + unwind_plan.SetReturnAddressRegister(dwarf_lr); + return true; } -bool -ABISysV_ppc64::RegisterIsVolatile (const RegisterInfo *reg_info) -{ - return !RegisterIsCalleeSaved (reg_info); +bool ABISysV_ppc64::RegisterIsVolatile(const RegisterInfo *reg_info) { + return !RegisterIsCalleeSaved(reg_info); } // See "Register Usage" in the // "System V Application Binary Interface" // "64-bit PowerPC ELF Application Binary Interface Supplement" -// current version is 1.9 released 2004 at http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.pdf - -bool -ABISysV_ppc64::RegisterIsCalleeSaved (const RegisterInfo *reg_info) -{ - if (reg_info) - { - // Preserved registers are : - // r1,r2,r13-r31 - // cr2-cr4 (partially preserved) - // f14-f31 (not yet) - // v20-v31 (not yet) - // vrsave (not yet) - - const char *name = reg_info->name; - if (name[0] == 'r') - { - if ((name[1] == '1' || name[1] == '2') && name[2] == '\0') - return true; - if (name[1] == '1' && name[2] > '2') - return true; - if ((name[1] == '2' || name[1] == '3') && name[2] != '\0') - return true; - } - - if (name[0] == 'f' && name[1] >= '0' && name[2] <= '9') - { - if (name[2] == '\0') - return false; - if (name[1] == '1' && name[2] >= '4') - return true; - if ((name[1] == '2' || name[1] == '3') && name[2] != '\0') - return true; - } +// current version is 1.9 released 2004 at +// http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.pdf + +bool ABISysV_ppc64::RegisterIsCalleeSaved(const RegisterInfo *reg_info) { + if (reg_info) { + // Preserved registers are : + // r1,r2,r13-r31 + // cr2-cr4 (partially preserved) + // f14-f31 (not yet) + // v20-v31 (not yet) + // vrsave (not yet) + + const char *name = reg_info->name; + if (name[0] == 'r') { + if ((name[1] == '1' || name[1] == '2') && name[2] == '\0') + return true; + if (name[1] == '1' && name[2] > '2') + return true; + if ((name[1] == '2' || name[1] == '3') && name[2] != '\0') + return true; + } - if (name[0] == 's' && name[1] == 'p' && name[2] == '\0') // sp - return true; - if (name[0] == 'f' && name[1] == 'p' && name[2] == '\0') // fp - return true; - if (name[0] == 'p' && name[1] == 'c' && name[2] == '\0') // pc - return true; + if (name[0] == 'f' && name[1] >= '0' && name[2] <= '9') { + if (name[2] == '\0') + return false; + if (name[1] == '1' && name[2] >= '4') + return true; + if ((name[1] == '2' || name[1] == '3') && name[2] != '\0') + return true; } - return false; + + if (name[0] == 's' && name[1] == 'p' && name[2] == '\0') // sp + return true; + if (name[0] == 'f' && name[1] == 'p' && name[2] == '\0') // fp + return true; + if (name[0] == 'p' && name[1] == 'c' && name[2] == '\0') // pc + return true; + } + return false; } -void -ABISysV_ppc64::Initialize() -{ - PluginManager::RegisterPlugin (GetPluginNameStatic(), - "System V ABI for ppc64 targets", - CreateInstance); +void ABISysV_ppc64::Initialize() { + PluginManager::RegisterPlugin( + GetPluginNameStatic(), "System V ABI for ppc64 targets", CreateInstance); } -void -ABISysV_ppc64::Terminate() -{ - PluginManager::UnregisterPlugin (CreateInstance); +void ABISysV_ppc64::Terminate() { + PluginManager::UnregisterPlugin(CreateInstance); } -lldb_private::ConstString -ABISysV_ppc64::GetPluginNameStatic() -{ - static ConstString g_name("sysv-ppc64"); - return g_name; +lldb_private::ConstString ABISysV_ppc64::GetPluginNameStatic() { + static ConstString g_name("sysv-ppc64"); + return g_name; } //------------------------------------------------------------------ // PluginInterface protocol //------------------------------------------------------------------ -lldb_private::ConstString -ABISysV_ppc64::GetPluginName() -{ - return GetPluginNameStatic(); +lldb_private::ConstString ABISysV_ppc64::GetPluginName() { + return GetPluginNameStatic(); } -uint32_t -ABISysV_ppc64::GetPluginVersion() -{ - return 1; -} +uint32_t ABISysV_ppc64::GetPluginVersion() { return 1; } |