PenaDevops/delve
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dwarf/line: implement missing DW_LNS_set_isa opcode (#1676)

Browse Source
This commit is contained in:
Alessandro Arzilli 2019-08-27 23:27:15 +02:00 committed by Derek Parker
parent a3e884e55c
commit 0c36cfb9b1
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
pkg/dwarf/line/state_machine.go
View File

@ -24,6 +24,7 @@ type StateMachine struct {
address uint64 address uint64
column uint column uint
isStmt bool isStmt bool
isa uint64 // instruction set architecture register (DWARFv4)
basicBlock bool basicBlock bool
endSeq bool endSeq bool
lastDelta int lastDelta int
@ -70,6 +71,7 @@ const (
DW_LNS_fixed_advance_pc = 9 DW_LNS_fixed_advance_pc = 9
DW_LNS_prologue_end = 10 DW_LNS_prologue_end = 10
DW_LNS_epilogue_begin = 11 DW_LNS_epilogue_begin = 11
DW_LNS_set_isa = 12
) )
// Extended opcodes // Extended opcodes
@ -91,6 +93,7 @@ var standardopcodes = map[byte]opcodefn{
DW_LNS_fixed_advance_pc: fixedadvancepc, DW_LNS_fixed_advance_pc: fixedadvancepc,
DW_LNS_prologue_end: prologueend, DW_LNS_prologue_end: prologueend,
DW_LNS_epilogue_begin: epiloguebegin, DW_LNS_epilogue_begin: epiloguebegin,
DW_LNS_set_isa: setisa,
} }
var extendedopcodes = map[byte]opcodefn{ var extendedopcodes = map[byte]opcodefn{
@ -354,6 +357,7 @@ func (sm *StateMachine) next() error {
sm.file = sm.dbl.FileNames[0].Path sm.file = sm.dbl.FileNames[0].Path
sm.line = 1 sm.line = 1
sm.column = 0 sm.column = 0
sm.isa = 0
sm.isStmt = sm.dbl.Prologue.InitialIsStmt == uint8(1) sm.isStmt = sm.dbl.Prologue.InitialIsStmt == uint8(1)
sm.basicBlock = false sm.basicBlock = false
} }
@ -478,3 +482,8 @@ func prologueend(sm *StateMachine, buf *bytes.Buffer) {
func epiloguebegin(sm *StateMachine, buf *bytes.Buffer) { func epiloguebegin(sm *StateMachine, buf *bytes.Buffer) {
sm.epilogueBegin = true sm.epilogueBegin = true
} }
func setisa(sm *StateMachine, buf *bytes.Buffer) {
c, _ := util.DecodeULEB128(buf)
sm.isa = c
}