56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build linux && amd64
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package debug
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import "fmt"
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// SetReg modifies a register value in the debuggee.
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func (s *Session) SetReg(name string, value uint64) error {
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regs, err := s.GetRegs()
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if err != nil {
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return err
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}
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switch name {
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case "rax", "eax", "ax", "al":
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regs.RAX = value
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case "rbx", "ebx", "bx", "bl":
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regs.RBX = value
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case "rcx", "ecx", "cx", "cl":
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regs.RCX = value
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case "rdx", "edx", "dx", "dl":
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regs.RDX = value
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case "rsi", "esi", "si":
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regs.RSI = value
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case "rdi", "edi", "di":
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regs.RDI = value
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case "rbp", "ebp", "bp":
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regs.RBP = value
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case "rsp", "esp", "sp":
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regs.RSP = value
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case "r8":
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regs.R8 = value
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case "r9":
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regs.R9 = value
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case "r10":
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regs.R10 = value
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case "r11":
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regs.R11 = value
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case "r12":
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regs.R12 = value
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case "r13":
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regs.R13 = value
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case "r14":
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regs.R14 = value
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case "r15":
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regs.R15 = value
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case "rip", "eip":
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regs.RIP = value
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default:
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return fmt.Errorf("debug: unknown register %q", name)
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}
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return s.SetRegs(®s)
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}
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