137 lines
2.9 KiB
Go
137 lines
2.9 KiB
Go
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package regnum
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import (
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"fmt"
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"strings"
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)
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// The mapping between hardware registers and DWARF registers is specified
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// in the System V ABI AMD64 Architecture Processor Supplement page 57,
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// figure 3.36
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// https://www.uclibc.org/docs/psABI-x86_64.pdf
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const (
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AMD64_Rax = 0
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AMD64_Rdx = 1
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AMD64_Rcx = 2
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AMD64_Rbx = 3
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AMD64_Rsi = 4
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AMD64_Rdi = 5
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AMD64_Rbp = 6
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AMD64_Rsp = 7
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AMD64_R8 = 8
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AMD64_R9 = 9
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AMD64_R10 = 10
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AMD64_R11 = 11
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AMD64_R12 = 12
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AMD64_R13 = 13
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AMD64_R14 = 14
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AMD64_R15 = 15
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AMD64_Rip = 16
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AMD64_XMM0 = 17 // XMM1 through XMM15 follow
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AMD64_ST0 = 33 // ST(1) through ST(7) follow
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AMD64_Rflags = 49
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AMD64_Es = 50
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AMD64_Cs = 51
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AMD64_Ss = 52
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AMD64_Ds = 53
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AMD64_Fs = 54
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AMD64_Gs = 55
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AMD64_Fs_base = 58
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AMD64_Gs_base = 59
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AMD64_MXCSR = 64
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AMD64_CW = 65
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AMD64_SW = 66
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)
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var amd64DwarfToName = map[uint64]string{
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AMD64_Rax: "Rax",
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AMD64_Rdx: "Rdx",
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AMD64_Rcx: "Rcx",
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AMD64_Rbx: "Rbx",
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AMD64_Rsi: "Rsi",
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AMD64_Rdi: "Rdi",
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AMD64_Rbp: "Rbp",
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AMD64_Rsp: "Rsp",
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AMD64_R8: "R8",
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AMD64_R9: "R9",
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AMD64_R10: "R10",
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AMD64_R11: "R11",
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AMD64_R12: "R12",
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AMD64_R13: "R13",
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AMD64_R14: "R14",
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AMD64_R15: "R15",
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AMD64_Rip: "Rip",
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AMD64_XMM0: "XMM0",
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AMD64_XMM0 + 1: "XMM1",
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AMD64_XMM0 + 2: "XMM2",
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AMD64_XMM0 + 3: "XMM3",
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AMD64_XMM0 + 4: "XMM4",
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AMD64_XMM0 + 5: "XMM5",
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AMD64_XMM0 + 6: "XMM6",
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AMD64_XMM0 + 7: "XMM7",
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AMD64_XMM0 + 8: "XMM8",
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AMD64_XMM0 + 9: "XMM9",
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AMD64_XMM0 + 10: "XMM10",
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AMD64_XMM0 + 11: "XMM11",
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AMD64_XMM0 + 12: "XMM12",
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AMD64_XMM0 + 13: "XMM13",
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AMD64_XMM0 + 14: "XMM14",
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AMD64_XMM0 + 15: "XMM15",
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AMD64_ST0: "ST(0)",
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AMD64_ST0 + 1: "ST(1)",
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AMD64_ST0 + 2: "ST(2)",
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AMD64_ST0 + 3: "ST(3)",
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AMD64_ST0 + 4: "ST(4)",
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AMD64_ST0 + 5: "ST(5)",
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AMD64_ST0 + 6: "ST(6)",
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AMD64_ST0 + 7: "ST(7)",
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AMD64_Rflags: "Rflags",
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AMD64_Es: "Es",
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AMD64_Cs: "Cs",
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AMD64_Ss: "Ss",
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AMD64_Ds: "Ds",
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AMD64_Fs: "Fs",
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AMD64_Gs: "Gs",
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AMD64_Fs_base: "Fs_base",
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AMD64_Gs_base: "Gs_base",
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AMD64_MXCSR: "MXCSR",
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AMD64_CW: "CW",
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AMD64_SW: "SW",
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}
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var AMD64NameToDwarf = func() map[string]int {
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r := make(map[string]int)
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for regNum, regName := range amd64DwarfToName {
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r[strings.ToLower(regName)] = int(regNum)
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}
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r["eflags"] = 49
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r["st0"] = 33
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r["st1"] = 34
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r["st2"] = 35
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r["st3"] = 36
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r["st4"] = 37
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r["st5"] = 38
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r["st6"] = 39
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r["st7"] = 40
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return r
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}()
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func AMD64MaxRegNum() uint64 {
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max := uint64(AMD64_Rip)
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for i := range amd64DwarfToName {
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if i > max {
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max = i
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}
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}
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return max
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}
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func AMD64ToName(num uint64) string {
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name, ok := amd64DwarfToName[num]
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if ok {
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return name
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}
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return fmt.Sprintf("unknown%d", num)
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}
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