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libsysprof-capture: do less work to calculate frame length

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These values are already all aligned, so there is no need to realign them.
This commit is contained in:
Christian Hergert
2020-02-18 13:35:45 -08:00
parent 70bea64f88
commit fdf912b716
1 changed files with 3 additions and 8 deletions
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11
src/libsysprof-capture/sysprof-collector.c
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@ -116,7 +116,7 @@ _do_getcpu (void)
#endif #endif
} }
static void static inline void
_realign (gsize *pos) _realign (gsize *pos)
{ {
*pos = (*pos + SYSPROF_CAPTURE_ALIGN - 1) & ~(SYSPROF_CAPTURE_ALIGN - 1); *pos = (*pos + SYSPROF_CAPTURE_ALIGN - 1) & ~(SYSPROF_CAPTURE_ALIGN - 1);
@ -380,7 +380,6 @@ sysprof_collector_allocate (SysprofCaptureAddress alloc_addr,
gsize len; gsize len;
len = sizeof *ev + (sizeof (SysprofCaptureAllocation) * MAX_UNWIND_DEPTH); len = sizeof *ev + (sizeof (SysprofCaptureAllocation) * MAX_UNWIND_DEPTH);
_realign (&len);
if ((ev = mapped_ring_buffer_allocate (collector->buffer, len))) if ((ev = mapped_ring_buffer_allocate (collector->buffer, len)))
{ {
@ -397,8 +396,8 @@ sysprof_collector_allocate (SysprofCaptureAddress alloc_addr,
else else
ev->n_addrs = 0; ev->n_addrs = 0;
ev->frame.len = sizeof *ev + sizeof (SysprofCaptureAddress) * ev->n_addrs;
ev->frame.type = SYSPROF_CAPTURE_FRAME_ALLOCATION; ev->frame.type = SYSPROF_CAPTURE_FRAME_ALLOCATION;
ev->frame.len = len;
ev->frame.cpu = _do_getcpu (); ev->frame.cpu = _do_getcpu ();
ev->frame.pid = collector->pid; ev->frame.pid = collector->pid;
ev->frame.time = SYSPROF_CAPTURE_CURRENT_TIME; ev->frame.time = SYSPROF_CAPTURE_CURRENT_TIME;
@ -406,11 +405,7 @@ sysprof_collector_allocate (SysprofCaptureAddress alloc_addr,
ev->alloc_addr = alloc_addr; ev->alloc_addr = alloc_addr;
ev->alloc_size = alloc_size; ev->alloc_size = alloc_size;
len = sizeof *ev + sizeof (SysprofCaptureAddress) * ev->n_addrs; mapped_ring_buffer_advance (collector->buffer, ev->frame.len);
_realign (&len);
ev->frame.len = len;
mapped_ring_buffer_advance (collector->buffer, len);
} }
} COLLECTOR_END; } COLLECTOR_END;