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| author | Chen Gang <xili_gchen_5257@hotmail.com> | 2015-08-21 05:36:37 +0800 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-09-15 07:41:19 -0700 |
| commit | b16189b22244e4cc158a3425b377b219586ec8ca (patch) | |
| tree | a6e33f215528b9a505fda1fed4e2cc10b6ac5d71 /linux-user/main.c | |
| parent | 2cb154bc19854232b5379236dd9dfc06d83ced1e (diff) | |
| download | focaccia-qemu-b16189b22244e4cc158a3425b377b219586ec8ca.tar.gz focaccia-qemu-b16189b22244e4cc158a3425b377b219586ec8ca.zip | |
linux-user: Support tilegx architecture in linux-user
Add main working flow feature, system call processing feature, and elf64 tilegx binary loading feature, based on Linux kernel tilegx 64-bit implementation. [rth: Moved all of the implementation of atomic instructions to a later patch.] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <BLU436-SMTP938552D42808AA60634582B9660@phx.gbl> Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 4ba7228e7f..7ecb018616 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -3412,6 +3412,64 @@ void cpu_loop(CPUS390XState *env) #endif /* TARGET_S390X */ +#ifdef TARGET_TILEGX + +static void gen_sigsegv_maperr(CPUTLGState *env, target_ulong addr) +{ + target_siginfo_t info; + + info.si_signo = TARGET_SIGSEGV; + info.si_errno = 0; + info.si_code = TARGET_SEGV_MAPERR; + info._sifields._sigfault._addr = addr; + queue_signal(env, info.si_signo, &info); +} + +static void gen_sigill_reg(CPUTLGState *env) +{ + target_siginfo_t info; + + info.si_signo = TARGET_SIGILL; + info.si_errno = 0; + info.si_code = TARGET_ILL_PRVREG; + info._sifields._sigfault._addr = env->pc; + queue_signal(env, info.si_signo, &info); +} + +void cpu_loop(CPUTLGState *env) +{ + CPUState *cs = CPU(tilegx_env_get_cpu(env)); + int trapnr; + + while (1) { + cpu_exec_start(cs); + trapnr = cpu_tilegx_exec(cs); + cpu_exec_end(cs); + switch (trapnr) { + case TILEGX_EXCP_SYSCALL: + env->regs[TILEGX_R_RE] = do_syscall(env, env->regs[TILEGX_R_NR], + env->regs[0], env->regs[1], + env->regs[2], env->regs[3], + env->regs[4], env->regs[5], + env->regs[6], env->regs[7]); + env->regs[TILEGX_R_ERR] = TILEGX_IS_ERRNO(env->regs[TILEGX_R_RE]) + ? - env->regs[TILEGX_R_RE] + : 0; + break; + case TILEGX_EXCP_REG_IDN_ACCESS: + case TILEGX_EXCP_REG_UDN_ACCESS: + gen_sigill_reg(env); + break; + default: + fprintf(stderr, "trapnr is %d[0x%x].\n", trapnr, trapnr); + g_assert_not_reached(); + } + process_pending_signals(env); + } +} + +#endif + THREAD CPUState *thread_cpu; void task_settid(TaskState *ts) @@ -4377,6 +4435,17 @@ int main(int argc, char **argv, char **envp) env->psw.mask = regs->psw.mask; env->psw.addr = regs->psw.addr; } +#elif defined(TARGET_TILEGX) + { + int i; + for (i = 0; i < TILEGX_R_COUNT; i++) { + env->regs[i] = regs->regs[i]; + } + for (i = 0; i < TILEGX_SPR_COUNT; i++) { + env->spregs[i] = 0; + } + env->pc = regs->pc; + } #else #error unsupported target CPU #endif |