mirror of
https://github.com/taigrr/gopher-os
synced 2025-01-18 04:43:13 -08:00
e67e2644e2
Summary of changes: - kernel/mem renamed to kernel/mm - consolidated page/frame defs into one file which now lives in the kernel/mm package and is referenced by both pmm and vmm pkgs - consolidated parts of the vmm code (e.g. PDT+PTE) - memcopy/memset helpers moved to the kernel package - physical allocators moved to the kernel/mm/pmm package - break vmm -> pmm pkg dependency by moving AllocFrame() into the mm package.
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
package kernel
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import (
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"testing"
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"unsafe"
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)
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const pageSize = 4096
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func TestMemset(t *testing.T) {
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// memset with a 0 size should be a no-op
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Memset(uintptr(0), 0x00, 0)
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for pageCount := uint32(1); pageCount <= 10; pageCount++ {
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buf := make([]byte, pageSize<<pageCount)
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for i := 0; i < len(buf); i++ {
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buf[i] = 0xFE
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}
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addr := uintptr(unsafe.Pointer(&buf[0]))
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Memset(addr, 0x00, uintptr(len(buf)))
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for i := 0; i < len(buf); i++ {
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if got := buf[i]; got != 0x00 {
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t.Errorf("[block with %d pages] expected byte: %d to be 0x00; got 0x%x", pageCount, i, got)
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}
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}
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}
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}
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func TestMemcopy(t *testing.T) {
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// memcopy with a 0 size should be a no-op
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Memcopy(uintptr(0), uintptr(0), 0)
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var (
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src = make([]byte, pageSize)
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dst = make([]byte, pageSize)
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)
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for i := 0; i < len(src); i++ {
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src[i] = byte(i % 256)
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}
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Memcopy(
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uintptr(unsafe.Pointer(&src[0])),
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uintptr(unsafe.Pointer(&dst[0])),
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pageSize,
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)
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for i := 0; i < len(src); i++ {
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if got := dst[i]; got != src[i] {
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t.Errorf("value mismatch between src and dst at index %d", i)
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}
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}
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}
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