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comparison src/cpu/x86/vm/stubGenerator_x86_32.cpp @ 3781:d83ac25d0304

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7055355: JSR 292: crash while throwing WrongMethodTypeException Reviewed-by: jrose, twisti, bdelsart
author never
date Thu, 16 Jun 2011 13:46:55 -0700
parents 0ac769a57c64
children c565834fb592
comparison
equal deleted inserted replaced
3759:cfcf2ba8f3eb 3781:d83ac25d0304
2149 // Note that we only have to preserve callee-saved registers since 2149 // Note that we only have to preserve callee-saved registers since
2150 // the compilers are responsible for supplying a continuation point 2150 // the compilers are responsible for supplying a continuation point
2151 // if they expect all registers to be preserved. 2151 // if they expect all registers to be preserved.
2152 enum layout { 2152 enum layout {
2153 thread_off, // last_java_sp 2153 thread_off, // last_java_sp
2154 arg1_off,
2155 arg2_off,
2154 rbp_off, // callee saved register 2156 rbp_off, // callee saved register
2155 ret_pc, 2157 ret_pc,
2156 framesize 2158 framesize
2157 }; 2159 };
2158 2160
2183 // continuation_for_implicit_division_by_zero_exception. All other implicit 2185 // continuation_for_implicit_division_by_zero_exception. All other implicit
2184 // exceptions (e.g., NullPointerException or AbstractMethodError on entry) are 2186 // exceptions (e.g., NullPointerException or AbstractMethodError on entry) are
2185 // either at call sites or otherwise assume that stack unwinding will be initiated, 2187 // either at call sites or otherwise assume that stack unwinding will be initiated,
2186 // so caller saved registers were assumed volatile in the compiler. 2188 // so caller saved registers were assumed volatile in the compiler.
2187 address generate_throw_exception(const char* name, address runtime_entry, 2189 address generate_throw_exception(const char* name, address runtime_entry,
2188 bool restore_saved_exception_pc) { 2190 bool restore_saved_exception_pc, Register arg1 = noreg, Register arg2 = noreg) {
2189 2191
2190 int insts_size = 256; 2192 int insts_size = 256;
2191 int locs_size = 32; 2193 int locs_size = 32;
2192 2194
2193 CodeBuffer code(name, insts_size, locs_size); 2195 CodeBuffer code(name, insts_size, locs_size);
2216 2218
2217 int frame_complete = __ pc() - start; 2219 int frame_complete = __ pc() - start;
2218 2220
2219 // push java thread (becomes first argument of C function) 2221 // push java thread (becomes first argument of C function)
2220 __ movptr(Address(rsp, thread_off * wordSize), java_thread); 2222 __ movptr(Address(rsp, thread_off * wordSize), java_thread);
2223 if (arg1 != noreg) {
2224 __ movptr(Address(rsp, arg1_off * wordSize), arg1);
2225 }
2226 if (arg2 != noreg) {
2227 assert(arg1 != noreg, "missing reg arg");
2228 __ movptr(Address(rsp, arg2_off * wordSize), arg2);
2229 }
2221 2230
2222 // Set up last_Java_sp and last_Java_fp 2231 // Set up last_Java_sp and last_Java_fp
2223 __ set_last_Java_frame(java_thread, rsp, rbp, NULL); 2232 __ set_last_Java_frame(java_thread, rsp, rbp, NULL);
2224 2233
2225 // Call runtime 2234 // Call runtime
2307 StubRoutines::x86::_verify_fpu_cntrl_wrd_entry = generate_verify_fpu_cntrl_wrd(); 2316 StubRoutines::x86::_verify_fpu_cntrl_wrd_entry = generate_verify_fpu_cntrl_wrd();
2308 StubRoutines::_d2i_wrapper = generate_d2i_wrapper(T_INT, 2317 StubRoutines::_d2i_wrapper = generate_d2i_wrapper(T_INT,
2309 CAST_FROM_FN_PTR(address, SharedRuntime::d2i)); 2318 CAST_FROM_FN_PTR(address, SharedRuntime::d2i));
2310 StubRoutines::_d2l_wrapper = generate_d2i_wrapper(T_LONG, 2319 StubRoutines::_d2l_wrapper = generate_d2i_wrapper(T_LONG,
2311 CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); 2320 CAST_FROM_FN_PTR(address, SharedRuntime::d2l));
2321
2322 // Build this early so it's available for the interpreter
2323 StubRoutines::_throw_WrongMethodTypeException_entry =
2324 generate_throw_exception("WrongMethodTypeException throw_exception",
2325 CAST_FROM_FN_PTR(address, SharedRuntime::throw_WrongMethodTypeException),
2326 false, rax, rcx);
2312 } 2327 }
2313 2328
2314 2329
2315 void generate_all() { 2330 void generate_all() {
2316 // Generates all stubs and initializes the entry points 2331 // Generates all stubs and initializes the entry points