Mercurial > hg > graal-jvmci-8
comparison src/cpu/ppc/vm/runtime_ppc.cpp @ 14684:e5e8aa897002
8035647: PPC64: Support for elf v2 abi.
Summary: ELFv2 ABI used by the little endian PowerPC64 on Linux.
Reviewed-by: kvn
Contributed-by: asmundak@google.com
author | goetz |
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date | Thu, 06 Mar 2014 10:55:28 -0800 |
parents | 67fa91961822 |
children | 92aa6797d639 |
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14682:84eafecdb9a9 | 14684:e5e8aa897002 |
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85 CodeBuffer buffer("exception_blob", 2048, 1024); | 85 CodeBuffer buffer("exception_blob", 2048, 1024); |
86 InterpreterMacroAssembler* masm = new InterpreterMacroAssembler(&buffer); | 86 InterpreterMacroAssembler* masm = new InterpreterMacroAssembler(&buffer); |
87 | 87 |
88 address start = __ pc(); | 88 address start = __ pc(); |
89 | 89 |
90 int frame_size_in_bytes = frame::abi_112_size; | 90 int frame_size_in_bytes = frame::abi_reg_args_size; |
91 OopMap* map = new OopMap(frame_size_in_bytes / sizeof(jint), 0); | 91 OopMap* map = new OopMap(frame_size_in_bytes / sizeof(jint), 0); |
92 | 92 |
93 // Exception pc is 'return address' for stack walker. | 93 // Exception pc is 'return address' for stack walker. |
94 __ std(R4_ARG2/*exception pc*/, _abi(lr), R1_SP); | 94 __ std(R4_ARG2/*exception pc*/, _abi(lr), R1_SP); |
95 | 95 |
97 __ std(R3_ARG1/*exception oop*/, in_bytes(JavaThread::exception_oop_offset()), R16_thread); | 97 __ std(R3_ARG1/*exception oop*/, in_bytes(JavaThread::exception_oop_offset()), R16_thread); |
98 __ std(R4_ARG2/*exception pc*/, in_bytes(JavaThread::exception_pc_offset()), R16_thread); | 98 __ std(R4_ARG2/*exception pc*/, in_bytes(JavaThread::exception_pc_offset()), R16_thread); |
99 | 99 |
100 // Save callee-saved registers. | 100 // Save callee-saved registers. |
101 // Push a C frame for the exception blob. It is needed for the C call later on. | 101 // Push a C frame for the exception blob. It is needed for the C call later on. |
102 __ push_frame_abi112(0, R11_scratch1); | 102 __ push_frame_reg_args(0, R11_scratch1); |
103 | 103 |
104 // This call does all the hard work. It checks if an exception handler | 104 // This call does all the hard work. It checks if an exception handler |
105 // exists in the method. | 105 // exists in the method. |
106 // If so, it returns the handler address. | 106 // If so, it returns the handler address. |
107 // If not, it prepares for stack-unwinding, restoring the callee-save | 107 // If not, it prepares for stack-unwinding, restoring the callee-save |
108 // registers of the frame being removed. | 108 // registers of the frame being removed. |
109 __ set_last_Java_frame(/*sp=*/R1_SP, noreg); | 109 __ set_last_Java_frame(/*sp=*/R1_SP, noreg); |
110 | 110 |
111 __ mr(R3_ARG1, R16_thread); | 111 __ mr(R3_ARG1, R16_thread); |
112 #if defined(ABI_ELFv2) | |
113 __ call_c((address) OptoRuntime::handle_exception_C, relocInfo::none); | |
114 #else | |
112 __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, OptoRuntime::handle_exception_C), | 115 __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, OptoRuntime::handle_exception_C), |
113 relocInfo::none); | 116 relocInfo::none); |
117 #endif | |
114 address calls_return_pc = __ last_calls_return_pc(); | 118 address calls_return_pc = __ last_calls_return_pc(); |
115 # ifdef ASSERT | 119 # ifdef ASSERT |
116 __ cmpdi(CCR0, R3_RET, 0); | 120 __ cmpdi(CCR0, R3_RET, 0); |
117 __ asm_assert_ne("handle_exception_C must not return NULL", 0x601); | 121 __ asm_assert_ne("handle_exception_C must not return NULL", 0x601); |
118 # endif | 122 # endif |
160 | 164 |
161 // Same as above, but also set sp to unextended_sp. | 165 // Same as above, but also set sp to unextended_sp. |
162 __ bind(mh_callsite); | 166 __ bind(mh_callsite); |
163 __ mr(R31, R3_RET); // Save branch address. | 167 __ mr(R31, R3_RET); // Save branch address. |
164 __ mr(R3_ARG1, R16_thread); | 168 __ mr(R3_ARG1, R16_thread); |
169 #if defined(ABI_ELFv2) | |
170 __ call_c((address) adjust_SP_for_methodhandle_callsite, relocInfo::none); | |
171 #else | |
165 __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, adjust_SP_for_methodhandle_callsite), relocInfo::none); | 172 __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, adjust_SP_for_methodhandle_callsite), relocInfo::none); |
173 #endif | |
166 // Returns unextended_sp in R3_RET. | 174 // Returns unextended_sp in R3_RET. |
167 | 175 |
168 __ mtctr(R31); // Move address of exception handler to SR_CTR. | 176 __ mtctr(R31); // Move address of exception handler to SR_CTR. |
169 __ reset_last_Java_frame(); | 177 __ reset_last_Java_frame(); |
170 | 178 |