6a70d531bb
Delve represents registerized variables (fully or partially) using compositeMemory, implementing proc.(*compositeMemory).WriteMemory is necessary to make SetVariable and function calls work when Go will switch to using the register calling convention in 1.17. This commit also makes some refactoring by moving the code that converts between register numbers and register names out of pkg/proc into a different package.
137 lines
2.9 KiB
Go
137 lines
2.9 KiB
Go
package regnum
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
// The mapping between hardware registers and DWARF registers is specified
|
|
// in the System V ABI AMD64 Architecture Processor Supplement page 57,
|
|
// figure 3.36
|
|
// https://www.uclibc.org/docs/psABI-x86_64.pdf
|
|
|
|
const (
|
|
AMD64_Rax = 0
|
|
AMD64_Rdx = 1
|
|
AMD64_Rcx = 2
|
|
AMD64_Rbx = 3
|
|
AMD64_Rsi = 4
|
|
AMD64_Rdi = 5
|
|
AMD64_Rbp = 6
|
|
AMD64_Rsp = 7
|
|
AMD64_R8 = 8
|
|
AMD64_R9 = 9
|
|
AMD64_R10 = 10
|
|
AMD64_R11 = 11
|
|
AMD64_R12 = 12
|
|
AMD64_R13 = 13
|
|
AMD64_R14 = 14
|
|
AMD64_R15 = 15
|
|
AMD64_Rip = 16
|
|
AMD64_XMM0 = 17 // XMM1 through XMM15 follow
|
|
AMD64_ST0 = 33 // ST(1) through ST(7) follow
|
|
AMD64_Rflags = 49
|
|
AMD64_Es = 50
|
|
AMD64_Cs = 51
|
|
AMD64_Ss = 52
|
|
AMD64_Ds = 53
|
|
AMD64_Fs = 54
|
|
AMD64_Gs = 55
|
|
AMD64_Fs_base = 58
|
|
AMD64_Gs_base = 59
|
|
AMD64_MXCSR = 64
|
|
AMD64_CW = 65
|
|
AMD64_SW = 66
|
|
)
|
|
|
|
var amd64DwarfToName = map[uint64]string{
|
|
AMD64_Rax: "Rax",
|
|
AMD64_Rdx: "Rdx",
|
|
AMD64_Rcx: "Rcx",
|
|
AMD64_Rbx: "Rbx",
|
|
AMD64_Rsi: "Rsi",
|
|
AMD64_Rdi: "Rdi",
|
|
AMD64_Rbp: "Rbp",
|
|
AMD64_Rsp: "Rsp",
|
|
AMD64_R8: "R8",
|
|
AMD64_R9: "R9",
|
|
AMD64_R10: "R10",
|
|
AMD64_R11: "R11",
|
|
AMD64_R12: "R12",
|
|
AMD64_R13: "R13",
|
|
AMD64_R14: "R14",
|
|
AMD64_R15: "R15",
|
|
AMD64_Rip: "Rip",
|
|
AMD64_XMM0: "XMM0",
|
|
AMD64_XMM0 + 1: "XMM1",
|
|
AMD64_XMM0 + 2: "XMM2",
|
|
AMD64_XMM0 + 3: "XMM3",
|
|
AMD64_XMM0 + 4: "XMM4",
|
|
AMD64_XMM0 + 5: "XMM5",
|
|
AMD64_XMM0 + 6: "XMM6",
|
|
AMD64_XMM0 + 7: "XMM7",
|
|
AMD64_XMM0 + 8: "XMM8",
|
|
AMD64_XMM0 + 9: "XMM9",
|
|
AMD64_XMM0 + 10: "XMM10",
|
|
AMD64_XMM0 + 11: "XMM11",
|
|
AMD64_XMM0 + 12: "XMM12",
|
|
AMD64_XMM0 + 13: "XMM13",
|
|
AMD64_XMM0 + 14: "XMM14",
|
|
AMD64_XMM0 + 15: "XMM15",
|
|
AMD64_ST0: "ST(0)",
|
|
AMD64_ST0 + 1: "ST(1)",
|
|
AMD64_ST0 + 2: "ST(2)",
|
|
AMD64_ST0 + 3: "ST(3)",
|
|
AMD64_ST0 + 4: "ST(4)",
|
|
AMD64_ST0 + 5: "ST(5)",
|
|
AMD64_ST0 + 6: "ST(6)",
|
|
AMD64_ST0 + 7: "ST(7)",
|
|
AMD64_Rflags: "Rflags",
|
|
AMD64_Es: "Es",
|
|
AMD64_Cs: "Cs",
|
|
AMD64_Ss: "Ss",
|
|
AMD64_Ds: "Ds",
|
|
AMD64_Fs: "Fs",
|
|
AMD64_Gs: "Gs",
|
|
AMD64_Fs_base: "Fs_base",
|
|
AMD64_Gs_base: "Gs_base",
|
|
AMD64_MXCSR: "MXCSR",
|
|
AMD64_CW: "CW",
|
|
AMD64_SW: "SW",
|
|
}
|
|
|
|
var AMD64NameToDwarf = func() map[string]int {
|
|
r := make(map[string]int)
|
|
for regNum, regName := range amd64DwarfToName {
|
|
r[strings.ToLower(regName)] = int(regNum)
|
|
}
|
|
r["eflags"] = 49
|
|
r["st0"] = 33
|
|
r["st1"] = 34
|
|
r["st2"] = 35
|
|
r["st3"] = 36
|
|
r["st4"] = 37
|
|
r["st5"] = 38
|
|
r["st6"] = 39
|
|
r["st7"] = 40
|
|
return r
|
|
}()
|
|
|
|
func AMD64MaxRegNum() uint64 {
|
|
max := uint64(AMD64_Rip)
|
|
for i := range amd64DwarfToName {
|
|
if i > max {
|
|
max = i
|
|
}
|
|
}
|
|
return max
|
|
}
|
|
|
|
func AMD64ToName(num uint64) string {
|
|
name, ok := amd64DwarfToName[num]
|
|
if ok {
|
|
return name
|
|
}
|
|
return fmt.Sprintf("unknown%d", num)
|
|
}
|