mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-08-04 16:23:55 -06:00
microblaze: linux-user support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias
parent
8dfbe4e839
commit
b779e29ed8
7 changed files with 474 additions and 5 deletions
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@ -453,6 +453,28 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
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#endif /* TARGET_MIPS */
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#ifdef TARGET_MICROBLAZE
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ( (x) == EM_XILINX_MICROBLAZE )
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_MIPS
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->pc = infop->entry;
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regs->r1 = infop->start_stack;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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#endif /* TARGET_MICROBLAZE */
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#ifdef TARGET_SH4
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#define ELF_START_MMAP 0x80000000
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@ -2036,6 +2036,66 @@ void cpu_loop (CPUState *env)
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}
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#endif
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#ifdef TARGET_MICROBLAZE
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void cpu_loop (CPUState *env)
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{
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int trapnr, ret;
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target_siginfo_t info;
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while (1) {
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trapnr = cpu_mb_exec (env);
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switch (trapnr) {
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case 0xaa:
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{
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info.si_signo = SIGSEGV;
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info.si_errno = 0;
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/* XXX: check env->error_code */
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info.si_code = TARGET_SEGV_MAPERR;
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info._sifields._sigfault._addr = 0;
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queue_signal(env, info.si_signo, &info);
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}
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break;
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case EXCP_INTERRUPT:
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/* just indicate that signals should be handled asap */
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break;
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case EXCP_BREAK:
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/* Return address is 4 bytes after the call. */
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env->regs[14] += 4;
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ret = do_syscall(env,
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env->regs[12],
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env->regs[5],
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env->regs[6],
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env->regs[7],
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env->regs[8],
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env->regs[9],
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env->regs[10]);
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env->regs[3] = ret;
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env->sregs[SR_PC] = env->regs[14];
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break;
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case EXCP_DEBUG:
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{
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int sig;
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sig = gdb_handlesig (env, TARGET_SIGTRAP);
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if (sig)
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{
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info.si_signo = sig;
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info.si_errno = 0;
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info.si_code = TARGET_TRAP_BRKPT;
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queue_signal(env, info.si_signo, &info);
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}
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}
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break;
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default:
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printf ("Unhandled trap: 0x%x\n", trapnr);
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cpu_dump_state(env, stderr, fprintf, 0);
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exit (1);
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}
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process_pending_signals (env);
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}
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}
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#endif
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#ifdef TARGET_M68K
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void cpu_loop(CPUM68KState *env)
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@ -2698,6 +2758,42 @@ int main(int argc, char **argv, char **envp)
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env->sr = regs->sr;
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ts->sim_syscalls = 1;
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}
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#elif defined(TARGET_MICROBLAZE)
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{
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env->regs[0] = regs->r0;
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env->regs[1] = regs->r1;
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env->regs[2] = regs->r2;
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env->regs[3] = regs->r3;
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env->regs[4] = regs->r4;
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env->regs[5] = regs->r5;
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env->regs[6] = regs->r6;
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env->regs[7] = regs->r7;
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env->regs[8] = regs->r8;
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env->regs[9] = regs->r9;
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env->regs[10] = regs->r10;
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env->regs[11] = regs->r11;
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env->regs[12] = regs->r12;
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env->regs[13] = regs->r13;
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env->regs[14] = regs->r14;
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env->regs[15] = regs->r15;
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env->regs[16] = regs->r16;
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env->regs[17] = regs->r17;
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env->regs[18] = regs->r18;
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env->regs[19] = regs->r19;
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env->regs[20] = regs->r20;
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env->regs[21] = regs->r21;
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env->regs[22] = regs->r22;
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env->regs[23] = regs->r23;
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env->regs[24] = regs->r24;
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env->regs[25] = regs->r25;
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env->regs[26] = regs->r26;
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env->regs[27] = regs->r27;
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env->regs[28] = regs->r28;
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env->regs[29] = regs->r29;
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env->regs[30] = regs->r30;
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env->regs[31] = regs->r31;
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env->sregs[SR_PC] = regs->pc;
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}
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#elif defined(TARGET_MIPS)
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{
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int i;
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@ -3011,6 +3011,222 @@ badframe:
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force_sig(TARGET_SIGSEGV);
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return 0;
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}
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#elif defined(TARGET_MICROBLAZE)
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struct target_sigcontext {
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struct target_pt_regs regs; /* needs to be first */
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uint32_t oldmask;
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};
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/* Signal frames. */
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struct target_signal_frame {
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struct target_sigcontext sc;
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uint32_t extramask[TARGET_NSIG_WORDS - 1];
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uint32_t tramp[2];
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};
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struct rt_signal_frame {
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struct siginfo info;
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struct ucontext uc;
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uint32_t tramp[2];
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};
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static void setup_sigcontext(struct target_sigcontext *sc, CPUState *env)
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{
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__put_user(env->regs[0], &sc->regs.r0);
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__put_user(env->regs[1], &sc->regs.r1);
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__put_user(env->regs[2], &sc->regs.r2);
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__put_user(env->regs[3], &sc->regs.r3);
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__put_user(env->regs[4], &sc->regs.r4);
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__put_user(env->regs[5], &sc->regs.r5);
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__put_user(env->regs[6], &sc->regs.r6);
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__put_user(env->regs[7], &sc->regs.r7);
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__put_user(env->regs[8], &sc->regs.r8);
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__put_user(env->regs[9], &sc->regs.r9);
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__put_user(env->regs[10], &sc->regs.r10);
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__put_user(env->regs[11], &sc->regs.r11);
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__put_user(env->regs[12], &sc->regs.r12);
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__put_user(env->regs[13], &sc->regs.r13);
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__put_user(env->regs[14], &sc->regs.r14);
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__put_user(env->regs[15], &sc->regs.r15);
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__put_user(env->regs[16], &sc->regs.r16);
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__put_user(env->regs[17], &sc->regs.r17);
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__put_user(env->regs[18], &sc->regs.r18);
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__put_user(env->regs[19], &sc->regs.r19);
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__put_user(env->regs[20], &sc->regs.r20);
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__put_user(env->regs[21], &sc->regs.r21);
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__put_user(env->regs[22], &sc->regs.r22);
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__put_user(env->regs[23], &sc->regs.r23);
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__put_user(env->regs[24], &sc->regs.r24);
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__put_user(env->regs[25], &sc->regs.r25);
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__put_user(env->regs[26], &sc->regs.r26);
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__put_user(env->regs[27], &sc->regs.r27);
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__put_user(env->regs[28], &sc->regs.r28);
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__put_user(env->regs[29], &sc->regs.r29);
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__put_user(env->regs[30], &sc->regs.r30);
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__put_user(env->regs[31], &sc->regs.r31);
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__put_user(env->sregs[SR_PC], &sc->regs.pc);
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}
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static void restore_sigcontext(struct target_sigcontext *sc, CPUState *env)
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{
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__get_user(env->regs[0], &sc->regs.r0);
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__get_user(env->regs[1], &sc->regs.r1);
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__get_user(env->regs[2], &sc->regs.r2);
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__get_user(env->regs[3], &sc->regs.r3);
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__get_user(env->regs[4], &sc->regs.r4);
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__get_user(env->regs[5], &sc->regs.r5);
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__get_user(env->regs[6], &sc->regs.r6);
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__get_user(env->regs[7], &sc->regs.r7);
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__get_user(env->regs[8], &sc->regs.r8);
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__get_user(env->regs[9], &sc->regs.r9);
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__get_user(env->regs[10], &sc->regs.r10);
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__get_user(env->regs[11], &sc->regs.r11);
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__get_user(env->regs[12], &sc->regs.r12);
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__get_user(env->regs[13], &sc->regs.r13);
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__get_user(env->regs[14], &sc->regs.r14);
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__get_user(env->regs[15], &sc->regs.r15);
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__get_user(env->regs[16], &sc->regs.r16);
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__get_user(env->regs[17], &sc->regs.r17);
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__get_user(env->regs[18], &sc->regs.r18);
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__get_user(env->regs[19], &sc->regs.r19);
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__get_user(env->regs[20], &sc->regs.r20);
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__get_user(env->regs[21], &sc->regs.r21);
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__get_user(env->regs[22], &sc->regs.r22);
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__get_user(env->regs[23], &sc->regs.r23);
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__get_user(env->regs[24], &sc->regs.r24);
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__get_user(env->regs[25], &sc->regs.r25);
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__get_user(env->regs[26], &sc->regs.r26);
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__get_user(env->regs[27], &sc->regs.r27);
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__get_user(env->regs[28], &sc->regs.r28);
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__get_user(env->regs[29], &sc->regs.r29);
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__get_user(env->regs[30], &sc->regs.r30);
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__get_user(env->regs[31], &sc->regs.r31);
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__get_user(env->sregs[SR_PC], &sc->regs.pc);
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}
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static abi_ulong get_sigframe(struct target_sigaction *ka,
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CPUState *env, int frame_size)
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{
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abi_ulong sp = env->regs[1];
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if ((ka->sa_flags & SA_ONSTACK) != 0 && !on_sig_stack(sp))
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sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
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return ((sp - frame_size) & -8UL);
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}
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static void setup_frame(int sig, struct target_sigaction *ka,
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target_sigset_t *set, CPUState *env)
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{
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struct target_signal_frame *frame;
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abi_ulong frame_addr;
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int err = 0;
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int i;
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frame_addr = get_sigframe(ka, env, sizeof *frame);
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if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0))
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goto badframe;
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/* Save the mask. */
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err |= __put_user(set->sig[0], &frame->sc.oldmask);
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if (err)
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goto badframe;
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for(i = 1; i < TARGET_NSIG_WORDS; i++) {
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if (__put_user(set->sig[i], &frame->extramask[i - 1]))
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goto badframe;
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}
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setup_sigcontext(&frame->sc, env);
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/* Set up to return from userspace. If provided, use a stub
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already in userspace. */
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/* minus 8 is offset to cater for "rtsd r15,8" offset */
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if (ka->sa_flags & TARGET_SA_RESTORER) {
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env->regs[15] = ((unsigned long)ka->sa_restorer)-8;
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} else {
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uint32_t t;
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/* Note, these encodings are _big endian_! */
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/* addi r12, r0, __NR_sigreturn */
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t = 0x31800000UL | TARGET_NR_sigreturn;
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err |= __put_user(t, frame->tramp + 0);
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/* brki r14, 0x8 */
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t = 0xb9cc0008UL;
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err |= __put_user(t, frame->tramp + 1);
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/* Return from sighandler will jump to the tramp.
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Negative 8 offset because return is rtsd r15, 8 */
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env->regs[15] = ((unsigned long)frame->tramp) - 8;
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}
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if (err)
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goto badframe;
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/* Set up registers for signal handler */
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env->regs[1] = (unsigned long) frame;
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/* Signal handler args: */
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env->regs[5] = sig; /* Arg 0: signum */
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env->regs[6] = (unsigned long) &frame->sc; /* arg 1: sigcontext */
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/* Offset of 4 to handle microblaze rtid r14, 0 */
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env->sregs[SR_PC] = (unsigned long)ka->_sa_handler;
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unlock_user_struct(frame, frame_addr, 1);
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return;
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badframe:
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unlock_user_struct(frame, frame_addr, 1);
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force_sig(TARGET_SIGSEGV);
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}
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static void setup_rt_frame(int sig, struct target_sigaction *ka,
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target_siginfo_t *info,
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target_sigset_t *set, CPUState *env)
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{
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fprintf(stderr, "Microblaze setup_rt_frame: not implemented\n");
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}
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long do_sigreturn(CPUState *env)
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{
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struct target_signal_frame *frame;
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abi_ulong frame_addr;
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target_sigset_t target_set;
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sigset_t set;
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int i;
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frame_addr = env->regs[R_SP];
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/* Make sure the guest isn't playing games. */
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if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 1))
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goto badframe;
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/* Restore blocked signals */
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if (__get_user(target_set.sig[0], &frame->sc.oldmask))
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goto badframe;
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for(i = 1; i < TARGET_NSIG_WORDS; i++) {
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if (__get_user(target_set.sig[i], &frame->extramask[i - 1]))
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goto badframe;
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}
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target_to_host_sigset_internal(&set, &target_set);
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sigprocmask(SIG_SETMASK, &set, NULL);
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restore_sigcontext(&frame->sc, env);
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/* We got here through a sigreturn syscall, our path back is via an
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rtb insn so setup r14 for that. */
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env->regs[14] = env->sregs[SR_PC];
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unlock_user_struct(frame, frame_addr, 0);
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return env->regs[10];
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badframe:
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unlock_user_struct(frame, frame_addr, 0);
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force_sig(TARGET_SIGSEGV);
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}
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long do_rt_sigreturn(CPUState *env)
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{
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fprintf(stderr, "Microblaze do_rt_sigreturn: not implemented\n");
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return -TARGET_ENOSYS;
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}
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#elif defined(TARGET_CRIS)
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struct target_sigcontext {
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@ -4854,7 +4854,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
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#endif
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#ifdef TARGET_NR_mmap
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case TARGET_NR_mmap:
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#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
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#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
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{
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abi_ulong *v;
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abi_ulong v1, v2, v3, v4, v5, v6;
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@ -59,7 +59,8 @@
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#define TARGET_IOC_READ 2U
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#elif defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
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defined(TARGET_SPARC) || defined(TARGET_MIPS)
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defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) || \
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defined(TARGET_MIPS)
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#define TARGET_IOC_SIZEBITS 13
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#define TARGET_IOC_DIRBITS 3
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@ -286,7 +287,7 @@ struct target_sigaction;
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int do_sigaction(int sig, const struct target_sigaction *act,
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struct target_sigaction *oact);
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#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS)
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#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
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#if defined(TARGET_SPARC)
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#define TARGET_SA_NOCLDSTOP 8u
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@ -1170,6 +1171,54 @@ struct __attribute__((__packed__)) target_stat64 {
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unsigned int __unused5;
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};
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#elif defined(TARGET_MICROBLAZE)
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struct target_stat {
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abi_ulong st_dev;
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abi_ulong st_ino;
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unsigned int st_mode;
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unsigned short st_nlink;
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unsigned int st_uid;
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unsigned int st_gid;
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abi_ulong st_rdev;
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abi_ulong st_size;
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abi_ulong st_blksize;
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abi_ulong st_blocks;
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||||
abi_ulong target_st_atime;
|
||||
abi_ulong target_st_atime_nsec;
|
||||
abi_ulong target_st_mtime;
|
||||
abi_ulong target_st_mtime_nsec;
|
||||
abi_ulong target_st_ctime;
|
||||
abi_ulong target_st_ctime_nsec;
|
||||
abi_ulong __unused4;
|
||||
abi_ulong __unused5;
|
||||
};
|
||||
|
||||
/* FIXME: Microblaze no-mmu user-space has a difference stat64 layout... */
|
||||
struct __attribute__((__packed__)) target_stat64 {
|
||||
uint64_t st_dev;
|
||||
uint64_t st_ino;
|
||||
uint32_t st_mode;
|
||||
uint32_t st_nlink;
|
||||
uint32_t st_uid;
|
||||
uint32_t st_gid;
|
||||
uint64_t st_rdev;
|
||||
uint32_t __pad2;
|
||||
|
||||
int64_t st_size;
|
||||
int32_t st_blksize;
|
||||
int64_t st_blocks; /* Number 512-byte blocks allocated. */
|
||||
|
||||
int target_st_atime;
|
||||
unsigned int target_st_atime_nsec;
|
||||
int target_st_mtime;
|
||||
unsigned int target_st_mtime_nsec;
|
||||
int target_st_ctime;
|
||||
unsigned int target_st_ctime_nsec;
|
||||
uint32_t __unused4;
|
||||
uint32_t __unused5;
|
||||
};
|
||||
|
||||
#elif defined(TARGET_M68K)
|
||||
|
||||
struct target_stat {
|
||||
|
|
@ -1719,6 +1768,24 @@ struct target_statfs64 {
|
|||
#define TARGET_O_NOFOLLOW 0100000 /* don't follow links */
|
||||
#define TARGET_O_LARGEFILE 0200000
|
||||
#define TARGET_O_DIRECT 0400000 /* direct disk access hint */
|
||||
#elif defined (TARGET_MICROBLAZE)
|
||||
#define TARGET_O_ACCMODE 0003
|
||||
#define TARGET_O_RDONLY 00
|
||||
#define TARGET_O_WRONLY 01
|
||||
#define TARGET_O_RDWR 02
|
||||
#define TARGET_O_CREAT 0100 /* not fcntl */
|
||||
#define TARGET_O_EXCL 0200 /* not fcntl */
|
||||
#define TARGET_O_NOCTTY 0400 /* not fcntl */
|
||||
#define TARGET_O_TRUNC 01000 /* not fcntl */
|
||||
#define TARGET_O_APPEND 02000
|
||||
#define TARGET_O_NONBLOCK 04000
|
||||
#define TARGET_O_NDELAY TARGET_O_NONBLOCK
|
||||
#define TARGET_O_SYNC 010000
|
||||
#define TARGET_FASYNC 020000 /* fcntl, for BSD compatibility */
|
||||
#define TARGET_O_DIRECTORY 040000 /* must be a directory */
|
||||
#define TARGET_O_NOFOLLOW 0100000 /* don't follow links */
|
||||
#define TARGET_O_LARGEFILE 0200000
|
||||
#define TARGET_O_DIRECT 0400000 /* direct disk access hint */
|
||||
#elif defined (TARGET_SPARC)
|
||||
#define TARGET_O_RDONLY 0x0000
|
||||
#define TARGET_O_WRONLY 0x0001
|
||||
|
|
@ -1806,7 +1873,7 @@ struct target_flock {
|
|||
struct target_flock64 {
|
||||
short l_type;
|
||||
short l_whence;
|
||||
#if defined(TARGET_PPC) || defined(TARGET_X86_64) || defined(TARGET_MIPS) || defined(TARGET_SPARC) || defined(TARGET_HPPA)
|
||||
#if defined(TARGET_PPC) || defined(TARGET_X86_64) || defined(TARGET_MIPS) || defined(TARGET_SPARC) || defined(TARGET_HPPA) || defined (TARGET_MICROBLAZE)
|
||||
int __pad;
|
||||
#endif
|
||||
unsigned long long l_start;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue