Fix breakpoint instruction and remove patch

This can only be use with a patched Go version with the correct breakpoint instruction.
go-delve · Jun 3, 2022 · 0a79c04 · 0a79c04
1 parent 46de2b4
commit 0a79c04
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Showing 3 changed files with 6 additions and 7 deletions.
diff --git a/pkg/proc/native/proc.go b/pkg/proc/native/proc.go
@@ -260,8 +260,7 @@ func (dbp *nativeProcess) initialize(path string, debugInfoDirs []string) (*proc
  if err != nil {
  return nil, err
  }
- // TODO(alexsaezm) Verify if I need to run IsCgo for ppc64le too
- if dbp.bi.Arch.Name == "arm64" {
+ if dbp.bi.Arch.Name == "arm64" || dbp.bi.Arch.Name == "ppc64le" {
  dbp.iscgo = tgt.IsCgo()
  }
  return tgt, nil

diff --git a/pkg/proc/native/proc_linux.go b/pkg/proc/native/proc_linux.go
@@ -414,9 +414,9 @@ func (dbp *nativeProcess) trapWaitInternal(pid int, options trapWaitOptions) (*n
  // Sometimes we get an unknown thread, ignore it?
  continue
  }
- if (halt && status.StopSignal() == sys.SIGSTOP) || (status.StopSignal() == sys.SIGTRAP) || (status.StopSignal() == sys.SIGSEGV) {
+ if (halt && status.StopSignal() == sys.SIGSTOP) || (status.StopSignal() == sys.SIGTRAP) {
  th.os.running = false
- if status.StopSignal() == sys.SIGTRAP || status.StopSignal() == sys.SIGSEGV {
+ if status.StopSignal() == sys.SIGTRAP {
  th.os.setbp = true
  }
  return th, nil

diff --git a/pkg/proc/ppc64le_arch.go b/pkg/proc/ppc64le_arch.go
@@ -9,9 +9,9 @@ import (
  "github.com/go-delve/delve/pkg/dwarf/regnum"
 )
 
-//var ppc64leBreakInstruction = []byte{0xfc, 0x00, 0x07, 0xfe}
-
-var ppc64leBreakInstruction = []byte{0x0, 0x0, 0x20, 0xd4} // TODO(alexsaezm) Verify if this is the correct break instruction
+// This is the unconditional trap, the same mnemonic that both clang and gcc use
+// It's documented in Section C.6 Trap Mnemonics in the Power ISA Book 3
+var ppc64leBreakInstruction = []byte{0x08, 0x00, 0xe0, 0x7d}
 
 func PPC64LEArch(goos string) *Arch {
  return &Arch{