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target-tilegx: Generate SEGV properly

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-08-21 11:49:38 -07:00
parent 8fd29dd72b
commit 9b9dc7acec
3 changed files with 9 additions and 1 deletions
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3
linux-user/main.c
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@ -3460,6 +3460,9 @@ void cpu_loop(CPUTLGState *env)
case TILEGX_EXCP_REG_UDN_ACCESS:
gen_sigill_reg(env);
break;
case TILEGX_EXCP_SEGV:
gen_sigsegv_maperr(env, env->excaddr);
break;
default:
fprintf(stderr, "trapnr is %d[0x%x].\n", trapnr, trapnr);
g_assert_not_reached();

5
target-tilegx/cpu.c
View File

@ -119,7 +119,10 @@ static void tilegx_cpu_do_interrupt(CPUState *cs)
static int tilegx_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
int mmu_idx)
{
cpu_dump_state(cs, stderr, fprintf, 0);
TileGXCPU *cpu = TILEGX_CPU(cs);
cs->exception_index = TILEGX_EXCP_SEGV;
cpu->env.excaddr = address;
return 1;
}

2
target-tilegx/cpu.h
View File

@ -60,6 +60,7 @@ enum {
typedef enum {
TILEGX_EXCP_NONE = 0,
TILEGX_EXCP_SYSCALL = 1,
TILEGX_EXCP_SEGV = 2,
TILEGX_EXCP_OPCODE_UNKNOWN = 0x101,
TILEGX_EXCP_OPCODE_UNIMPLEMENTED = 0x102,
TILEGX_EXCP_OPCODE_CMPEXCH = 0x103,
@ -87,6 +88,7 @@ typedef struct CPUTLGState {
#if defined(CONFIG_USER_ONLY)
uint32_t excparam; /* exception parameter */
uint64_t excaddr; /* exception address */
#endif
CPU_COMMON