diff options
Diffstat (limited to 'runtime/runtime.cc')
| -rw-r--r-- | runtime/runtime.cc | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/runtime/runtime.cc b/runtime/runtime.cc index 51edc85..eaa27de 100644 --- a/runtime/runtime.cc +++ b/runtime/runtime.cc @@ -30,6 +30,7 @@ #include <fcntl.h> #include "arch/arm/registers_arm.h" +#include "arch/arm64/registers_arm64.h" #include "arch/mips/registers_mips.h" #include "arch/x86/registers_x86.h" #include "arch/x86_64/registers_x86_64.h" @@ -1035,6 +1036,46 @@ mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_se method->SetFrameSizeInBytes(frame_size); method->SetCoreSpillMask(core_spills); method->SetFpSpillMask(fp_spills); + } else if (instruction_set == kArm64) { + // Callee saved registers + uint32_t ref_spills = (1 << art::arm64::X19) | (1 << art::arm64::X20) | (1 << art::arm64::X21) | + (1 << art::arm64::X22) | (1 << art::arm64::X23) | (1 << art::arm64::X24) | + (1 << art::arm64::X25) | (1 << art::arm64::X26) | (1 << art::arm64::X27) | + (1 << art::arm64::X28); + // X0 is the method pointer. Not saved. + uint32_t arg_spills = (1 << art::arm64::X1) | (1 << art::arm64::X2) | (1 << art::arm64::X3) | + (1 << art::arm64::X4) | (1 << art::arm64::X5) | (1 << art::arm64::X6) | + (1 << art::arm64::X7); + // TODO This is conservative. Only ALL should include the thread register. + // The thread register is not preserved by the aapcs64. + // LR is always saved. + uint32_t all_spills = 0; // (1 << art::arm64::LR); + uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) | + (type == kSaveAll ? all_spills : 0) | (1 << art::arm64::FP) + | (1 << art::arm64::X18) | (1 << art::arm64::LR); + + // Save callee-saved floating point registers. Rest are scratch/parameters. + uint32_t fp_arg_spills = (1 << art::arm64::D0) | (1 << art::arm64::D1) | (1 << art::arm64::D2) | + (1 << art::arm64::D3) | (1 << art::arm64::D4) | (1 << art::arm64::D5) | + (1 << art::arm64::D6) | (1 << art::arm64::D7); + uint32_t fp_ref_spills = (1 << art::arm64::D8) | (1 << art::arm64::D9) | (1 << art::arm64::D10) | + (1 << art::arm64::D11) | (1 << art::arm64::D12) | (1 << art::arm64::D13) | + (1 << art::arm64::D14) | (1 << art::arm64::D15); + uint32_t fp_all_spills = fp_arg_spills | + (1 << art::arm64::D16) | (1 << art::arm64::D17) | (1 << art::arm64::D18) | + (1 << art::arm64::D19) | (1 << art::arm64::D20) | (1 << art::arm64::D21) | + (1 << art::arm64::D22) | (1 << art::arm64::D23) | (1 << art::arm64::D24) | + (1 << art::arm64::D25) | (1 << art::arm64::D26) | (1 << art::arm64::D27) | + (1 << art::arm64::D28) | (1 << art::arm64::D29) | (1 << art::arm64::D30) | + (1 << art::arm64::D31); + uint32_t fp_spills = fp_ref_spills | (type == kRefsAndArgs ? fp_arg_spills: 0) + | (type == kSaveAll ? fp_all_spills : 0); + size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ + + __builtin_popcount(fp_spills) /* fprs */ + + 1 /* Method* */) * kPointerSize, kStackAlignment); + method->SetFrameSizeInBytes(frame_size); + method->SetCoreSpillMask(core_spills); + method->SetFpSpillMask(fp_spills); } else { UNIMPLEMENTED(FATAL) << instruction_set; } |