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target/sparc/int32_helper: Extract and use excp_name_str() 

Improve exception error report:

Before:

  qemu: fatal: Trap 0x06 while interrupts disabled, Error state

After:

  qemu: fatal: Trap 0x06 (Window Underflow) while interrupts disabled, Error state

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Message-Id: <20200331105048.27989-8-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-03-31 11:49:11 +02:00
parent 304c1c8aa5
commit 86e8c353f7
1 changed files with 12 additions and 6 deletions
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18
target/sparc/int32_helper.c
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@ -57,6 +57,14 @@ static const char * const excp_names[0x80] = {
[TT_NCP_INSN] = "Coprocessor Disabled",
};
static const char *excp_name_str(int32_t exception_index)
{
if (exception_index < 0 || exception_index >= ARRAY_SIZE(excp_names)) {
return "Unknown";
}
return excp_names[exception_index];
}
void sparc_cpu_do_interrupt(CPUState *cs)
{
SPARCCPU *cpu = SPARC_CPU(cs);
@ -77,10 +85,7 @@ void sparc_cpu_do_interrupt(CPUState *cs)
} else if (intno >= 0x80) {
name = "Trap Instruction";
} else {
name = excp_names[intno];
if (!name) {
name = "Unknown";
}
name = excp_name_str(intno);
}
qemu_log("%6d: %s (v=%02x)\n", count, name, intno);
@ -106,8 +111,9 @@ void sparc_cpu_do_interrupt(CPUState *cs)
env->def.features & CPU_FEATURE_TA0_SHUTDOWN) {
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
} else {
cpu_abort(cs, "Trap 0x%02x while interrupts disabled, Error state",
cs->exception_index);
cpu_abort(cs, "Trap 0x%02x (%s) while interrupts disabled, "
"Error state",
cs->exception_index, excp_name_str(cs->exception_index));
}
return;
}