From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sun, 11 Sep 2016 04:34:46 -0300 Subject: Linux-libre 4.7.1-gnu --- tools/perf/trace/beauty/futex_op.c | 44 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 tools/perf/trace/beauty/futex_op.c (limited to 'tools/perf/trace/beauty/futex_op.c') diff --git a/tools/perf/trace/beauty/futex_op.c b/tools/perf/trace/beauty/futex_op.c new file mode 100644 index 000000000..e2476211f --- /dev/null +++ b/tools/perf/trace/beauty/futex_op.c @@ -0,0 +1,44 @@ +#include + +static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg) +{ + enum syscall_futex_args { + SCF_UADDR = (1 << 0), + SCF_OP = (1 << 1), + SCF_VAL = (1 << 2), + SCF_TIMEOUT = (1 << 3), + SCF_UADDR2 = (1 << 4), + SCF_VAL3 = (1 << 5), + }; + int op = arg->val; + int cmd = op & FUTEX_CMD_MASK; + size_t printed = 0; + + switch (cmd) { +#define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n); + P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break; + P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; + P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; + P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break; + P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break; + P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break; + P_FUTEX_OP(WAKE_OP); break; + P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; + P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; + P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break; + P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break; + P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break; + P_FUTEX_OP(WAIT_REQUEUE_PI); break; + default: printed = scnprintf(bf, size, "%#x", cmd); break; + } + + if (op & FUTEX_PRIVATE_FLAG) + printed += scnprintf(bf + printed, size - printed, "|PRIV"); + + if (op & FUTEX_CLOCK_REALTIME) + printed += scnprintf(bf + printed, size - printed, "|CLKRT"); + + return printed; +} + +#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op -- cgit v1.2.3-54-g00ecf