f3a191cd73
Implement debugging function for 386 on linux with reference to AMD64. There are a few remaining problems that need to be solved in another time. 1. The stacktrace of cgo are not exactly as expected. 2. Not implement `core` for now. 3. Not implement `call` for now. Can't not find `runtime·debugCallV1` or similar function in $GOROOT/src/runtime/asm_386.s. Update #20
27 lines
533 B
Go
27 lines
533 B
Go
package proc
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import (
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"testing"
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"unsafe"
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)
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func ptrSizeByRuntimeArch() int {
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return int(unsafe.Sizeof(uintptr(0)))
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}
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func TestIssue554(t *testing.T) {
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// unsigned integer overflow in proc.(*memCache).contains was
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// causing it to always return true for address 0xffffffffffffffff
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mem := memCache{true, 0x20, make([]byte, 100), nil}
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var addr uint64
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switch ptrSizeByRuntimeArch() {
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case 4:
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addr = 0xffffffff
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case 8:
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addr = 0xffffffffffffffff
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}
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if mem.contains(uintptr(addr), 40) {
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t.Fatalf("should be false")
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}
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}
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