delve/pkg/logflags/logflags.go
aarzilli 5155ef047f proc,dwarf/line: support is_stmt and prologue_end flags
Go1.11 uses the is_stmt flag of .debug_line to communicate which
assembly instructions are good places for breakpoints, we should
respect this flag.

These changes were introduced by:
* https://go-review.googlesource.com/c/go/+/102435/

Additionally when setting next breakpoints ignore all PC addresses that
belong to the same line as the one currently under at the cursor. This
matches the behavior of gdb and avoids stopping multiple times at the
heading line of a for statement with go1.11.

Change: https://go-review.googlesource.com/c/go/+/110416 adds the
prologue_end flag to the .debug_line section to communicate the end of
the stack-split prologue. We should use it instead of pattern matching
the disassembly when available.

Fixes #550

type of interfaces
'c7cde8b'.
2018-06-11 11:09:02 -07:00

65 lines
1.3 KiB
Go

package logflags
import (
"errors"
"strings"
)
var debugger = false
var gdbWire = false
var lldbServerOutput = false
var suppressedErrors = false
var debugLineErrors = false
// GdbWire returns true if the gdbserial package should log all the packets
// exchanged with the stub.
func GdbWire() bool {
return gdbWire
}
// Debugger returns true if the debugger package should log.
func Debugger() bool {
return debugger
}
// LLDBServerOutput returns true if the output of the LLDB server should be
// redirected to standard output instead of suppressed.
func LLDBServerOutput() bool {
return lldbServerOutput
}
// DebugLineErrors returns true if pkg/dwarf/line should log its recoverable
// errors.
func DebugLineErrors() bool {
return debugLineErrors
}
var errLogstrWithoutLog = errors.New("--log-output specified without --log")
// Setup sets debugger flags based on the contents of logstr.
func Setup(log bool, logstr string) error {
if !log {
if logstr != "" {
return errLogstrWithoutLog
}
return nil
}
if logstr == "" {
logstr = "debugger"
}
v := strings.Split(logstr, ",")
for _, logcmd := range v {
switch logcmd {
case "debugger":
debugger = true
case "gdbwire":
gdbWire = true
case "lldbout":
lldbServerOutput = true
case "debuglineerr":
debugLineErrors = true
}
}
return nil
}