diff options
Diffstat (limited to 'source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp')
| -rw-r--r-- | source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp | 76 |
1 files changed, 33 insertions, 43 deletions
diff --git a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp index f27c294a4abd..abf873ff3dd1 100644 --- a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp +++ b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp @@ -198,12 +198,7 @@ ABIMacOSX_arm::PrepareTrivialCall (Thread &thread, addr_t sp, addr_t function_addr, addr_t return_addr, - addr_t *arg1_ptr, - addr_t *arg2_ptr, - addr_t *arg3_ptr, - addr_t *arg4_ptr, - addr_t *arg5_ptr, - addr_t *arg6_ptr) const + llvm::ArrayRef<addr_t> args) const { RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) @@ -215,50 +210,45 @@ ABIMacOSX_arm::PrepareTrivialCall (Thread &thread, RegisterValue reg_value; - if (arg1_ptr) + const char *reg_names[] = { "r0", "r1", "r2", "r3" }; + + llvm::ArrayRef<addr_t>::iterator ai = args.begin(), ae = args.end(); + + for (size_t i = 0; i < (sizeof(reg_names) / sizeof(reg_names[0])); ++i) { - reg_value.SetUInt32(*arg1_ptr); - if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r0"), reg_value)) + if (ai == ae) + break; + + reg_value.SetUInt32(*ai); + if (!reg_ctx->WriteRegister(reg_ctx->GetRegisterInfoByName(reg_names[i]), reg_value)) return false; - - if (arg2_ptr) + + ++ai; + } + + if (ai != ae) + { + // Spill onto the stack + size_t num_stack_regs = ae - ai; + + sp -= (num_stack_regs * 4); + // Keep the stack 8 byte aligned, not that we need to + sp &= ~(8ull-1ull); + + // just using arg1 to get the right size + const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); + + addr_t arg_pos = sp; + + for (; ai != ae; ++ai) { - reg_value.SetUInt32(*arg2_ptr); - if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r1"), reg_value)) + reg_value.SetUInt32(*ai); + if (reg_ctx->WriteRegisterValueToMemory(reg_info, arg_pos, reg_info->byte_size, reg_value).Fail()) return false; - - if (arg3_ptr) - { - reg_value.SetUInt32(*arg3_ptr); - if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r2"), reg_value)) - return false; - if (arg4_ptr) - { - reg_value.SetUInt32(*arg4_ptr); - const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3"); - if (!reg_ctx->WriteRegister (reg_info, reg_value)) - return false; - if (arg5_ptr) - { - // Keep the stack 8 byte aligned, not that we need to - sp -= 8; - sp &= ~(8ull-1ull); - reg_value.SetUInt32(*arg5_ptr); - if (reg_ctx->WriteRegisterValueToMemory (reg_info, sp, reg_info->byte_size, reg_value).Fail()) - return false; - if (arg6_ptr) - { - reg_value.SetUInt32(*arg6_ptr); - if (reg_ctx->WriteRegisterValueToMemory (reg_info, sp + 4, reg_info->byte_size, reg_value).Fail()) - return false; - } - } - } - } + arg_pos += reg_info->byte_size; } } - TargetSP target_sp (thread.CalculateTarget()); Address so_addr; |