| // Copyright 2011 Google Inc. All Rights Reserved. |
| |
| #include "context_arm.h" |
| |
| #include "object.h" |
| #include "runtime_support.h" |
| |
| namespace art { |
| namespace arm { |
| |
| ArmContext::ArmContext() { |
| #ifndef NDEBUG |
| // Initialize registers with easy to spot debug values |
| for (int i=0; i < 16; i++) { |
| gprs_[i] = 0xEBAD6070+i; |
| } |
| for (int i=0; i < 32; i++) { |
| fprs_[i] = 0xEBAD8070+i; |
| } |
| #endif |
| } |
| |
| void ArmContext::FillCalleeSaves(const Frame& fr) { |
| Method* method = fr.GetMethod(); |
| uint32_t core_spills = method->GetCoreSpillMask(); |
| uint32_t fp_core_spills = method->GetFpSpillMask(); |
| size_t spill_count = __builtin_popcount(core_spills); |
| size_t fp_spill_count = __builtin_popcount(fp_core_spills); |
| if (spill_count > 0) { |
| // Lowest number spill is furthest away, walk registers and fill into context |
| int j = 1; |
| for(int i = 0; i < 16; i++) { |
| if (((core_spills >> i) & 1) != 0) { |
| gprs_[i] = fr.LoadCalleeSave(spill_count - j); |
| j++; |
| } |
| } |
| } |
| if (fp_spill_count > 0) { |
| // Lowest number spill is furthest away, walk registers and fill into context |
| int j = 1; |
| for(int i = 0; i < 32; i++) { |
| if (((fp_core_spills >> i) & 1) != 0) { |
| fprs_[i] = fr.LoadCalleeSave(spill_count + fp_spill_count - j); |
| j++; |
| } |
| } |
| } |
| } |
| |
| void ArmContext::DoLongJump() { |
| #if defined(__arm__) |
| art_do_long_jump(&gprs_[0], &fprs_[S0]); |
| #else |
| UNIMPLEMENTED(FATAL); |
| #endif |
| } |
| |
| } // namespace arm |
| } // namespace art |