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linux-user: Update print_futex_op

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Use a table for the names; print unknown values in hex,
since the value contains flags.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220829021006.67305-7-richard.henderson@linaro.org>
[lv: update print_futex() according to
"linux-user: Show timespec on strace for futex()"]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2022-08-28 19:10:04 -07:00 committed by Laurent Vivier
parent c72a90df47
commit 53b578f31f
1 changed files with 31 additions and 35 deletions
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66
linux-user/strace.c
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@ -3710,44 +3710,37 @@ print_munmap(CPUArchState *cpu_env, const struct syscallname *name,
#endif
#ifdef TARGET_NR_futex
static void print_futex_op(abi_long tflag, int last)
static void print_futex_op(int cmd, int last)
{
#define print_op(val) \
if( cmd == val ) { \
qemu_log(#val); \
return; \
}
static const char * const futex_names[] = {
#define NAME(X) [X] = #X
NAME(FUTEX_WAIT),
NAME(FUTEX_WAKE),
NAME(FUTEX_FD),
NAME(FUTEX_REQUEUE),
NAME(FUTEX_CMP_REQUEUE),
NAME(FUTEX_WAKE_OP),
NAME(FUTEX_LOCK_PI),
NAME(FUTEX_UNLOCK_PI),
NAME(FUTEX_TRYLOCK_PI),
NAME(FUTEX_WAIT_BITSET),
NAME(FUTEX_WAKE_BITSET),
NAME(FUTEX_WAIT_REQUEUE_PI),
NAME(FUTEX_CMP_REQUEUE_PI),
NAME(FUTEX_LOCK_PI2),
#undef NAME
};
int cmd = (int)tflag;
#ifdef FUTEX_PRIVATE_FLAG
if (cmd & FUTEX_PRIVATE_FLAG) {
qemu_log("FUTEX_PRIVATE_FLAG|");
cmd &= ~FUTEX_PRIVATE_FLAG;
unsigned base_cmd = cmd & FUTEX_CMD_MASK;
if (base_cmd < ARRAY_SIZE(futex_names)) {
qemu_log("%s%s%s",
(cmd & FUTEX_PRIVATE_FLAG ? "FUTEX_PRIVATE_FLAG|" : ""),
(cmd & FUTEX_CLOCK_REALTIME ? "FUTEX_CLOCK_REALTIME|" : ""),
futex_names[base_cmd]);
} else {
qemu_log("0x%x", cmd);
}
#endif
#ifdef FUTEX_CLOCK_REALTIME
if (cmd & FUTEX_CLOCK_REALTIME) {
qemu_log("FUTEX_CLOCK_REALTIME|");
cmd &= ~FUTEX_CLOCK_REALTIME;
}
#endif
print_op(FUTEX_WAIT)
print_op(FUTEX_WAKE)
print_op(FUTEX_FD)
print_op(FUTEX_REQUEUE)
print_op(FUTEX_CMP_REQUEUE)
print_op(FUTEX_WAKE_OP)
print_op(FUTEX_LOCK_PI)
print_op(FUTEX_UNLOCK_PI)
print_op(FUTEX_TRYLOCK_PI)
#ifdef FUTEX_WAIT_BITSET
print_op(FUTEX_WAIT_BITSET)
#endif
#ifdef FUTEX_WAKE_BITSET
print_op(FUTEX_WAKE_BITSET)
#endif
/* unknown values */
qemu_log("%d", cmd);
}
static void
@ -3763,6 +3756,9 @@ print_futex(CPUArchState *cpu_env, const struct syscallname *name,
switch (op) {
case FUTEX_WAIT:
case FUTEX_WAIT_BITSET:
case FUTEX_LOCK_PI:
case FUTEX_LOCK_PI2:
case FUTEX_WAIT_REQUEUE_PI:
print_timespec(arg3, 0);
break;
default: