ci: add Gitea CI workflows and release pipeline

Assisted-by: DeepSeek V4 Pro

debug/tracer.go

@@ -0,0 +1,90 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: BSD-3-Clause
+
+package debug
+
+// Regs holds the full general-purpose register set of a traced process
+// (the Linux amd64 user_regs_struct layout).
+type Regs struct {
+	R15     uint64
+	R14     uint64
+	R13     uint64
+	R12     uint64
+	RBP     uint64
+	RBX     uint64
+	R11     uint64
+	R10     uint64
+	R9      uint64
+	R8      uint64
+	RAX     uint64
+	RCX     uint64
+	RDX     uint64
+	RSI     uint64
+	RDI     uint64
+	OrigRAX uint64
+	RIP     uint64
+	CS      uint64
+	RFLAGS  uint64
+	RSP     uint64
+	SS      uint64
+	FSBase  uint64
+	GSBase  uint64
+	DS      uint64
+	ES      uint64
+	FS      uint64
+	GS      uint64
+}
+
+// tracer abstracts the minimal ptrace operations needed by the breakpoint
+// manager and the stop-information helpers.  The live implementation is
+// *Session (ptrace_linux_amd64.go); tests supply a mock.
+type tracer interface {
+	Peek(addr uint64) (uint64, error)
+	Poke(addr uint64, val uint64) error
+	SetRegs(regs *Regs) error
+	Pid() int
+}
+
+// mockTracer records Peek/Poke calls and provides fake register state.
+type mockTracer struct {
+	mem   map[uint64]byte
+	peeks []uint64
+	pokes []struct {
+		addr uint64
+		val  uint64
+	}
+	regs *Regs
+}
+
+func newMockTracer() *mockTracer {
+	return &mockTracer{
+		mem:  make(map[uint64]byte),
+		regs: &Regs{},
+	}
+}
+
+func (m *mockTracer) Peek(addr uint64) (uint64, error) {
+	m.peeks = append(m.peeks, addr)
+	var val uint64
+	for i := uint64(0); i < 8; i++ {
+		val |= uint64(m.mem[addr+i]) << (i * 8)
+	}
+	return val, nil
+}
+
+func (m *mockTracer) Poke(addr uint64, val uint64) error {
+	m.pokes = append(m.pokes, struct {
+		addr uint64
+		val  uint64
+	}{addr, val})
+	for i := uint64(0); i < 8; i++ {
+		m.mem[addr+i] = byte(val >> (i * 8))
+	}
+	return nil
+}
+
+func (m *mockTracer) SetRegs(regs *Regs) error {
+	m.regs = regs
+	return nil
+}
+func (m *mockTracer) Pid() int { return 42 }