mirror of
https://github.com/Motorhead1991/qemu.git
synced 2026-01-05 22:17:40 -07:00
Rework PowerPC exceptions model to make it more versatile:
* don't use exception vectors as the exception number. Use vectors numbers as defined in the PowerPC embedded specification instead and extend this model to cover all emulated PowerPC variants exceptions. * add some missing exceptions definitions, from PowerPC 2.04 specification and actual PowerPC implementations. * add code provision for hypervisor exceptions handling. * define exception vectors and prefix in CPUPPCState to emulate BookE exception vectors without any hacks. * define per CPU model valid exception vectors. * handle all known exceptions in user-mode only emulations. * fix hardware interrupts priorities in most cases. * change RET_EXCP macros name into GEN_EXCP as they don't return. * do not stop translation on most instructions that are not defined as context-synchronizing in PowerPC specification. * fix PowerPC 64 jump targets and link register update when in 32 bits mode. * Fix PowerPC 464 and 464F definitions. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3261 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer
parent
f93732914e
commit
e1833e1f96
8 changed files with 2112 additions and 1414 deletions
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@ -139,17 +139,6 @@ void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
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cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
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}
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uint32_t cpu_ppc_load_decr (CPUState *env)
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{
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/* TO FIX */
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return -1;
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}
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void cpu_ppc_store_decr (CPUState *env, uint32_t value)
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{
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/* TO FIX */
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}
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void cpu_ppc601_store_rtcu (CPUState *env, uint32_t value)
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{
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cpu_ppc_store_tbu( env, value );
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@ -165,6 +154,27 @@ uint32_t cpu_ppc601_load_rtcl (CPUState *env)
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return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
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}
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/* XXX: to be fixed */
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int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
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{
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return -1;
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}
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int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
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{
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return -1;
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}
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#define EXCP_DUMP(env, fmt, args...) \
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do { \
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fprintf(stderr, fmt , ##args); \
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cpu_dump_state(env, stderr, fprintf, 0); \
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if (loglevel != 0) { \
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fprintf(logfile, fmt , ##args); \
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cpu_dump_state(env, logfile, fprintf, 0); \
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} \
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} while (0)
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void cpu_loop(CPUPPCState *env)
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{
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int trapnr;
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@ -173,16 +183,336 @@ void cpu_loop(CPUPPCState *env)
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for(;;) {
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trapnr = cpu_ppc_exec(env);
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if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
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trapnr != EXCP_TRACE) {
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if (loglevel > 0) {
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cpu_dump_state(env, logfile, fprintf, 0);
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}
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}
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switch(trapnr) {
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case EXCP_NONE:
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case POWERPC_EXCP_NONE:
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/* Just go on */
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break;
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case EXCP_SYSCALL_USER:
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case POWERPC_EXCP_CRITICAL: /* Critical input */
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cpu_abort(env, "Critical interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_MCHECK: /* Machine check exception */
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cpu_abort(env, "Machine check exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_DSI: /* Data storage exception */
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#ifndef DAR
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/* To deal with multiple qemu header version as host for the darwin-user code */
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# define DAR SPR_DAR
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#endif
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EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
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env->spr[SPR_DAR]);
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/* Handle this via the gdb */
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gdb_handlesig (env, SIGSEGV);
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info.si_addr = (void*)env->nip;
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_ISI: /* Instruction storage exception */
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EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
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env->spr[SPR_DAR]);
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/* Handle this via the gdb */
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gdb_handlesig (env, SIGSEGV);
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_EXTERNAL: /* External input */
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cpu_abort(env, "External interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_ALIGN: /* Alignment exception */
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EXCP_DUMP(env, "Unaligned memory access\n");
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info.si_errno = 0;
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info.si_code = BUS_ADRALN;
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_PROGRAM: /* Program exception */
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/* XXX: check this */
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switch (env->error_code & ~0xF) {
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case POWERPC_EXCP_FP:
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EXCP_DUMP(env, "Floating point program exception\n");
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/* Set FX */
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env->fpscr[7] |= 0x8;
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/* Finally, update FEX */
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if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
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((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
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env->fpscr[7] |= 0x4;
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info.si_signo = SIGFPE;
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info.si_errno = 0;
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switch (env->error_code & 0xF) {
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case POWERPC_EXCP_FP_OX:
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info.si_code = FPE_FLTOVF;
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break;
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case POWERPC_EXCP_FP_UX:
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info.si_code = FPE_FLTUND;
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break;
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case POWERPC_EXCP_FP_ZX:
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case POWERPC_EXCP_FP_VXZDZ:
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info.si_code = FPE_FLTDIV;
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break;
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case POWERPC_EXCP_FP_XX:
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info.si_code = FPE_FLTRES;
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break;
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case POWERPC_EXCP_FP_VXSOFT:
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info.si_code = FPE_FLTINV;
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break;
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case POWERPC_EXCP_FP_VXNAN:
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case POWERPC_EXCP_FP_VXISI:
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case POWERPC_EXCP_FP_VXIDI:
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case POWERPC_EXCP_FP_VXIMZ:
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case POWERPC_EXCP_FP_VXVC:
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case POWERPC_EXCP_FP_VXSQRT:
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case POWERPC_EXCP_FP_VXCVI:
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info.si_code = FPE_FLTSUB;
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break;
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default:
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EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
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env->error_code);
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break;
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}
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break;
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case POWERPC_EXCP_INVAL:
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EXCP_DUMP(env, "Invalid instruction\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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switch (env->error_code & 0xF) {
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case POWERPC_EXCP_INVAL_INVAL:
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info.si_code = ILL_ILLOPC;
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break;
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case POWERPC_EXCP_INVAL_LSWX:
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info.si_code = ILL_ILLOPN;
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break;
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case POWERPC_EXCP_INVAL_SPR:
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info.si_code = ILL_PRVREG;
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break;
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case POWERPC_EXCP_INVAL_FP:
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info.si_code = ILL_COPROC;
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break;
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default:
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EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
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env->error_code & 0xF);
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info.si_code = ILL_ILLADR;
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break;
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}
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/* Handle this via the gdb */
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gdb_handlesig (env, SIGSEGV);
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break;
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case POWERPC_EXCP_PRIV:
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EXCP_DUMP(env, "Privilege violation\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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switch (env->error_code & 0xF) {
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case POWERPC_EXCP_PRIV_OPC:
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info.si_code = ILL_PRVOPC;
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break;
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case POWERPC_EXCP_PRIV_REG:
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info.si_code = ILL_PRVREG;
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break;
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default:
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EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
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env->error_code & 0xF);
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info.si_code = ILL_PRVOPC;
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break;
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}
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break;
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case POWERPC_EXCP_TRAP:
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cpu_abort(env, "Tried to call a TRAP\n");
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break;
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default:
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/* Should not happen ! */
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cpu_abort(env, "Unknown program exception (%02x)\n",
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env->error_code);
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break;
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}
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
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EXCP_DUMP(env, "No floating point allowed\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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info.si_code = ILL_COPROC;
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_SYSCALL: /* System call exception */
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cpu_abort(env, "Syscall exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
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EXCP_DUMP(env, "No APU instruction allowed\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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info.si_code = ILL_COPROC;
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_DECR: /* Decrementer exception */
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cpu_abort(env, "Decrementer interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
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cpu_abort(env, "Fix interval timer interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
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cpu_abort(env, "Watchdog timer interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_DTLB: /* Data TLB error */
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cpu_abort(env, "Data TLB exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_ITLB: /* Instruction TLB error */
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cpu_abort(env, "Instruction TLB exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_DEBUG: /* Debug interrupt */
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gdb_handlesig (env, SIGTRAP);
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break;
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#if defined(TARGET_PPCEMB)
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case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
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EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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info.si_code = ILL_COPROC;
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
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cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
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break;
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case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
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cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
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break;
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case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
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cpu_abort(env, "Performance monitor exception not handled\n");
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break;
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case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
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cpu_abort(env, "Doorbell interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
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cpu_abort(env, "Doorbell critical interrupt while in user mode. "
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"Aborting\n");
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break;
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#endif /* defined(TARGET_PPCEMB) */
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case POWERPC_EXCP_RESET: /* System reset exception */
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cpu_abort(env, "Reset interrupt while in user mode. "
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"Aborting\n");
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break;
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#if defined(TARGET_PPC64) /* PowerPC 64 */
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case POWERPC_EXCP_DSEG: /* Data segment exception */
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cpu_abort(env, "Data segment exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_ISEG: /* Instruction segment exception */
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cpu_abort(env, "Instruction segment exception "
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"while in user mode. Aborting\n");
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break;
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#endif /* defined(TARGET_PPC64) */
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#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
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case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
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cpu_abort(env, "Hypervisor decrementer interrupt "
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"while in user mode. Aborting\n");
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break;
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#endif /* defined(TARGET_PPC64H) */
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case POWERPC_EXCP_TRACE: /* Trace exception */
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/* Nothing to do:
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* we use this exception to emulate step-by-step execution mode.
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*/
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break;
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#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
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case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
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cpu_abort(env, "Hypervisor data storage exception "
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"while in user mode. Aborting\n");
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break;
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case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
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cpu_abort(env, "Hypervisor instruction storage exception "
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"while in user mode. Aborting\n");
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break;
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case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
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cpu_abort(env, "Hypervisor data segment exception "
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"while in user mode. Aborting\n");
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break;
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case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
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cpu_abort(env, "Hypervisor instruction segment exception "
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"while in user mode. Aborting\n");
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break;
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#endif /* defined(TARGET_PPC64H) */
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case POWERPC_EXCP_VPU: /* Vector unavailable exception */
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EXCP_DUMP(env, "No Altivec instructions allowed\n");
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info.si_signo = SIGILL;
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info.si_errno = 0;
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info.si_code = ILL_COPROC;
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info.si_addr = (void*)(env->nip - 4);
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queue_signal(info.si_signo, &info);
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break;
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case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
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cpu_abort(env, "Programable interval timer interrupt "
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"while in user mode. Aborting\n");
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break;
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case POWERPC_EXCP_IO: /* IO error exception */
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cpu_abort(env, "IO error exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_RUNM: /* Run mode exception */
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cpu_abort(env, "Run mode exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_EMUL: /* Emulation trap exception */
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cpu_abort(env, "Emulation trap exception not handled\n");
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break;
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case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
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cpu_abort(env, "Instruction fetch TLB exception "
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"while in user-mode. Aborting");
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break;
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case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
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cpu_abort(env, "Data load TLB exception while in user-mode. "
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"Aborting");
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break;
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case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
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cpu_abort(env, "Data store TLB exception while in user-mode. "
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"Aborting");
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break;
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case POWERPC_EXCP_FPA: /* Floating-point assist exception */
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cpu_abort(env, "Floating-point assist exception not handled\n");
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break;
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case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
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cpu_abort(env, "Instruction address breakpoint exception "
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"not handled\n");
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break;
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case POWERPC_EXCP_SMI: /* System management interrupt */
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cpu_abort(env, "System management interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_THERM: /* Thermal interrupt */
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cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
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cpu_abort(env, "Performance monitor exception not handled\n");
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break;
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case POWERPC_EXCP_VPUA: /* Vector assist exception */
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cpu_abort(env, "Vector assist exception not handled\n");
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break;
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case POWERPC_EXCP_SOFTP: /* Soft patch exception */
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cpu_abort(env, "Soft patch exception not handled\n");
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break;
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case POWERPC_EXCP_MAINT: /* Maintenance exception */
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cpu_abort(env, "Maintenance exception while in user mode. "
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"Aborting\n");
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break;
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case POWERPC_EXCP_STOP: /* stop translation */
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/* We did invalidate the instruction cache. Go on */
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break;
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case POWERPC_EXCP_BRANCH: /* branch instruction: */
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/* We just stopped because of a branch. Go on */
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break;
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case POWERPC_EXCP_SYSCALL_USER:
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/* system call in user-mode emulation */
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/* system call */
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if(((int)env->gpr[0]) <= SYS_MAXSYSCALL && ((int)env->gpr[0])>0)
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ret = do_unix_syscall(env, env->gpr[0]/*, env->gpr[3], env->gpr[4],
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@ -209,235 +539,9 @@ void cpu_loop(CPUPPCState *env)
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/* Return value */
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env->gpr[3] = ret;
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break;
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case EXCP_RESET:
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/* Should not happen ! */
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fprintf(stderr, "RESET asked... Stop emulation\n");
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if (loglevel)
|
||||
fprintf(logfile, "RESET asked... Stop emulation\n");
|
||||
abort();
|
||||
case EXCP_MACHINE_CHECK:
|
||||
fprintf(stderr, "Machine check exeption... Stop emulation\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "RESET asked... Stop emulation\n");
|
||||
info.si_signo = SIGBUS;
|
||||
info.si_errno = 0;
|
||||
info.si_code = BUS_OBJERR;
|
||||
info.si_addr = (void*)(env->nip - 4);
|
||||
queue_signal(info.si_signo, &info);
|
||||
case EXCP_DSI:
|
||||
#ifndef DAR
|
||||
/* To deal with multiple qemu header version as host for the darwin-user code */
|
||||
# define DAR SPR_DAR
|
||||
#endif
|
||||
fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]);
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "Invalid data memory access: 0x%08x\n",
|
||||
env->spr[DAR]);
|
||||
}
|
||||
/* Handle this via the gdb */
|
||||
gdb_handlesig (env, SIGSEGV);
|
||||
|
||||
info.si_addr = (void*)env->nip;
|
||||
queue_signal(info.si_signo, &info);
|
||||
break;
|
||||
case EXCP_ISI:
|
||||
fprintf(stderr, "Invalid instruction fetch\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Invalid instruction fetch\n");
|
||||
/* Handle this via the gdb */
|
||||
gdb_handlesig (env, SIGSEGV);
|
||||
|
||||
info.si_addr = (void*)(env->nip - 4);
|
||||
queue_signal(info.si_signo, &info);
|
||||
break;
|
||||
case EXCP_EXTERNAL:
|
||||
/* Should not happen ! */
|
||||
fprintf(stderr, "External interruption... Stop emulation\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "External interruption... Stop emulation\n");
|
||||
abort();
|
||||
case EXCP_ALIGN:
|
||||
fprintf(stderr, "Invalid unaligned memory access\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Invalid unaligned memory access\n");
|
||||
info.si_signo = SIGBUS;
|
||||
info.si_errno = 0;
|
||||
info.si_code = BUS_ADRALN;
|
||||
info.si_addr = (void*)(env->nip - 4);
|
||||
queue_signal(info.si_signo, &info);
|
||||
break;
|
||||
case EXCP_PROGRAM:
|
||||
switch (env->error_code & ~0xF) {
|
||||
case EXCP_FP:
|
||||
fprintf(stderr, "Program exception\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Program exception\n");
|
||||
/* Set FX */
|
||||
env->fpscr[7] |= 0x8;
|
||||
/* Finally, update FEX */
|
||||
if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
|
||||
((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
|
||||
env->fpscr[7] |= 0x4;
|
||||
info.si_signo = SIGFPE;
|
||||
info.si_errno = 0;
|
||||
switch (env->error_code & 0xF) {
|
||||
case EXCP_FP_OX:
|
||||
info.si_code = FPE_FLTOVF;
|
||||
break;
|
||||
case EXCP_FP_UX:
|
||||
info.si_code = FPE_FLTUND;
|
||||
break;
|
||||
case EXCP_FP_ZX:
|
||||
case EXCP_FP_VXZDZ:
|
||||
info.si_code = FPE_FLTDIV;
|
||||
break;
|
||||
case EXCP_FP_XX:
|
||||
info.si_code = FPE_FLTRES;
|
||||
break;
|
||||
case EXCP_FP_VXSOFT:
|
||||
info.si_code = FPE_FLTINV;
|
||||
break;
|
||||
case EXCP_FP_VXNAN:
|
||||
case EXCP_FP_VXISI:
|
||||
case EXCP_FP_VXIDI:
|
||||
case EXCP_FP_VXIMZ:
|
||||
case EXCP_FP_VXVC:
|
||||
case EXCP_FP_VXSQRT:
|
||||
case EXCP_FP_VXCVI:
|
||||
info.si_code = FPE_FLTSUB;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "Unknown floating point exception "
|
||||
"(%02x)\n", env->error_code);
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "Unknown floating point exception "
|
||||
"(%02x)\n", env->error_code & 0xF);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case EXCP_INVAL:
|
||||
fprintf(stderr, "Invalid instruction\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Invalid instruction\n");
|
||||
info.si_signo = SIGILL;
|
||||
info.si_errno = 0;
|
||||
switch (env->error_code & 0xF) {
|
||||
case EXCP_INVAL_INVAL:
|
||||
info.si_code = ILL_ILLOPC;
|
||||
break;
|
||||
case EXCP_INVAL_LSWX:
|
||||
info.si_code = ILL_ILLOPN;
|
||||
break;
|
||||
case EXCP_INVAL_SPR:
|
||||
info.si_code = ILL_PRVREG;
|
||||
break;
|
||||
case EXCP_INVAL_FP:
|
||||
info.si_code = ILL_COPROC;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "Unknown invalid operation (%02x)\n",
|
||||
env->error_code & 0xF);
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "Unknown invalid operation (%02x)\n",
|
||||
env->error_code & 0xF);
|
||||
}
|
||||
info.si_code = ILL_ILLADR;
|
||||
break;
|
||||
}
|
||||
/* Handle this via the gdb */
|
||||
gdb_handlesig (env, SIGSEGV);
|
||||
break;
|
||||
case EXCP_PRIV:
|
||||
fprintf(stderr, "Privilege violation\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Privilege violation\n");
|
||||
info.si_signo = SIGILL;
|
||||
info.si_errno = 0;
|
||||
switch (env->error_code & 0xF) {
|
||||
case EXCP_PRIV_OPC:
|
||||
info.si_code = ILL_PRVOPC;
|
||||
break;
|
||||
case EXCP_PRIV_REG:
|
||||
info.si_code = ILL_PRVREG;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "Unknown privilege violation (%02x)\n",
|
||||
env->error_code & 0xF);
|
||||
info.si_code = ILL_PRVOPC;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case EXCP_TRAP:
|
||||
fprintf(stderr, "Tried to call a TRAP\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Tried to call a TRAP\n");
|
||||
abort();
|
||||
default:
|
||||
/* Should not happen ! */
|
||||
fprintf(stderr, "Unknown program exception (%02x)\n",
|
||||
env->error_code);
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "Unknwon program exception (%02x)\n",
|
||||
env->error_code);
|
||||
}
|
||||
abort();
|
||||
}
|
||||
info.si_addr = (void*)(env->nip - 4);
|
||||
queue_signal(info.si_signo, &info);
|
||||
break;
|
||||
case EXCP_NO_FP:
|
||||
fprintf(stderr, "No floating point allowed\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "No floating point allowed\n");
|
||||
info.si_signo = SIGILL;
|
||||
info.si_errno = 0;
|
||||
info.si_code = ILL_COPROC;
|
||||
info.si_addr = (void*)(env->nip - 4);
|
||||
queue_signal(info.si_signo, &info);
|
||||
break;
|
||||
case EXCP_DECR:
|
||||
/* Should not happen ! */
|
||||
fprintf(stderr, "Decrementer exception\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Decrementer exception\n");
|
||||
abort();
|
||||
case EXCP_TRACE:
|
||||
/* Pass to gdb: we use this to trace execution */
|
||||
gdb_handlesig (env, SIGTRAP);
|
||||
break;
|
||||
case EXCP_FP_ASSIST:
|
||||
/* Should not happen ! */
|
||||
fprintf(stderr, "Floating point assist exception\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Floating point assist exception\n");
|
||||
abort();
|
||||
case EXCP_MTMSR:
|
||||
/* We reloaded the msr, just go on */
|
||||
if (msr_pr == 0) {
|
||||
fprintf(stderr, "Tried to go into supervisor mode !\n");
|
||||
if (loglevel)
|
||||
fprintf(logfile, "Tried to go into supervisor mode !\n");
|
||||
abort();
|
||||
}
|
||||
break;
|
||||
case EXCP_BRANCH:
|
||||
/* We stopped because of a jump... */
|
||||
break;
|
||||
case EXCP_INTERRUPT:
|
||||
/* Don't know why this should ever happen... */
|
||||
fprintf(stderr, "EXCP_INTERRUPT\n");
|
||||
break;
|
||||
case EXCP_DEBUG:
|
||||
gdb_handlesig (env, SIGTRAP);
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
||||
trapnr);
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
|
||||
"0x%02x - aborting\n", trapnr, env->error_code);
|
||||
}
|
||||
abort();
|
||||
cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
|
||||
break;
|
||||
}
|
||||
process_pending_signals(env);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue