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block all x86 tsc functions in when block

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This commit is contained in:
Colin Davidson
2023-02-21 06:28:55 -08:00
parent 7322b63991
commit 1fc3a25f47
3 changed files with 50 additions and 44 deletions
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core/time/tsc_darwin.odin
+3 -1
View File
@@ -9,7 +9,8 @@ foreign libc {
@(link_name="sysctlbyname") _sysctlbyname :: proc(path: cstring, oldp: rawptr, oldlenp: rawptr, newp: rawptr, newlen: int) -> c.int ---
}
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
when ODIN_ARCH == .amd64 {
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
tmp_freq : u64 = 0
tmp_size : i64 = size_of(tmp_freq)
ret := _sysctlbyname("machdep.tsc.frequency", &tmp_freq, &tmp_size, nil, 0)
@@ -18,4 +19,5 @@ _x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
}
return tmp_freq, true
}
}
core/time/tsc_linux.odin
+3 -1
View File
@@ -5,7 +5,8 @@ package time
import "core:intrinsics"
import "core:sys/unix"
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
when ODIN_ARCH == .amd64 {
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
perf_attr := unix.Perf_Event_Attr{}
perf_attr.type = u32(unix.Perf_Type_Id.Hardware)
perf_attr.config = u64(unix.Perf_Hardware_Id.Instructions)
@@ -32,4 +33,5 @@ _x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
frequency := u64((u128(1_000_000_000) << u128(event_page.time_shift)) / u128(event_page.time_mult))
return frequency, true
}
}
core/time/tsc_windows.odin
+3 -1
View File
@@ -5,7 +5,8 @@ package time
import "core:intrinsics"
import win32 "core:sys/windows"
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
when ODIN_ARCH == .amd64 {
_x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
qpc_begin: win32.LARGE_INTEGER
win32.QueryPerformanceCounter(&qpc_begin)
tsc_begin := intrinsics.read_cycle_counter()
@@ -21,4 +22,5 @@ _x86_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
frequency = u64((u128(tsc_end - tsc_begin) * u128(qpc_frequency)) / u128(qpc_end - qpc_begin))
return frequency, true
}
}