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add rvprof_region_end

This commit is contained in:
Patrick Lipka 2025-08-07 18:17:15 +02:00
parent b0841afa35
commit 44f09b9a38
1 changed files with 45 additions and 0 deletions
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45
src/rvprof_core.c
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@ -135,3 +135,48 @@ void rvprof_region_begin(const char* name){
}
void rvprof_region_end(const char* name){
if (!g_rvprof.initialized || g_rvprof.stack_ptr < 0){
return;
}
region_t* region = &g_rvprof.regions.data[g_rvprof.stack_ptr];
// make sure name matches
if (strcmp(region->name, name) !=0) return;
// end timing
uint64_t end_time_ns = rvprof_timing_get_current();
uint64_t end_cycles = rvprof_timing_get_cycles();
uint64_t elapsed_time = end_time_ns - region->start_time_ns;
uint64_t elapsed_cycles = (end_cycles > region->start_cycles) ? (end_cycles - region->start_cycles) : 0;
// update region statistics
if (region->function_id >= 0){
function_stats_t* stats = &g_rvprof.functions.data[region->function_id];
uint64_t exclusive_time = elapsed_time - region->child_time;
uint64_t exclusive_cycles = (elapsed_cycles > region->child_cycles) ? (elapsed_cycles - region->child_cycles) : 0; \
stats->total_inclusive_time += elapsed_time;
stats->total_exclusive_time += exclusive_time;
stats->total_inclusive_cycles += elapsed_cycles;
stats->total_exclusive_cycles += exclusive_cycles;
}
// update parent statistics
if (g_rvprof.stack_ptr > 0) {
g_rvprof.regions.data[g_rvprof.stack_ptr-1].child_time += elapsed_time;
g_rvprof.regions.data[g_rvprof.stack_ptr-1].child_cycles += elapsed_cycles;
} else {
// this is the top-level region, updatre total program stats
if (elapsed_time > g_rvprof.total_program_time){
g_rvprof.total_program_time = elapsed_time;
g_rvprof.total_program_cycles = elapsed_cycles;
}
}
// region ended: decrease stack pointer
g_rvprof.stack_ptr--;
}