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simple profiler added

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@850 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-12-31 15:51:40 +00:00
parent 813fbbbd61
commit 5ff8efa9e5
5 changed files with 196 additions and 1 deletions
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54
linux/pprof.h Normal file
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#ifndef __PPROF_H__
#define __PPROF_H__
enum pprof_points {
pp_main,
pp_frame,
pp_draw,
pp_sound,
pp_m68k,
pp_z80,
pp_msh2,
pp_ssh2,
pp_dummy,
pp_total_points
};
struct pp_counters
{
unsigned long long counter[pp_total_points];
};
extern struct pp_counters *pp_counters;
#ifdef __i386__
static __attribute__((always_inline)) inline unsigned int pprof_get_one(void)
{
unsigned long long ret;
__asm__ __volatile__ ("rdtsc" : "=A" (ret));
return (unsigned int)ret;
}
#elif defined(__GP2X__)
// XXX: MMSP2 only
extern volatile unsigned long *gp2x_memregl;
#define pprof_get_one() (unsigned int)gp2x_memregl[0x0a00 >> 2]
#else
#error no timer
#endif
#define pprof_start(point) { \
unsigned int pp_start_##point = pprof_get_one()
#define pprof_end(point) \
pp_counters->counter[pp_##point] += pprof_get_one() - pp_start_##point; \
}
// subtract for recursive stuff
#define pprof_end_sub(point) \
pp_counters->counter[pp_##point] -= pprof_get_one() - pp_start_##point; \
}
extern void pprof_init(void);
extern void pprof_finish(void);
#endif // __PPROF_H__