/
config.go
74 lines (67 loc) · 1.45 KB
/
config.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
package models
import (
"io"
"os"
"path/filepath"
"strings"
)
type Config struct {
Output io.WriteCloser
Color bool
Demangle bool
ForceBase uint64
ForceInterpBase uint64
LoadPrefix string
LoopCollapse int
NativeFallback bool
SavePost string
SavePre string
SkipInterp bool
Strsize int
TraceBlock bool
TraceExec bool
TraceMatch []string
TraceMatchDepth int
TraceMem bool
TraceMemBatch bool
TraceReg bool
TraceSys bool
Verbose bool
PrefixArgs []string
}
func (c *Config) Init() *Config {
if c == nil {
return (&Config{}).Init()
}
if c.Output == nil {
c.Output = os.Stderr
}
return c
}
func (c *Config) resolveSymlink(path, target string, force bool) string {
link, err := os.Lstat(path)
if err == nil && link.Mode()&os.ModeSymlink != 0 {
if linked, err := os.Readlink(path); err == nil {
if !filepath.IsAbs(linked) {
linked = filepath.Join(filepath.Dir(path), linked)
return c.PrefixPath(linked, false)
}
return c.PrefixPath(linked, force)
}
}
exists := !os.IsNotExist(err)
if force || exists {
return path
}
return target
}
func (c *Config) PrefixPath(path string, force bool) string {
if c.LoadPrefix == "" {
return path
}
target := path
if filepath.IsAbs(path) && !strings.HasPrefix(path, c.LoadPrefix) {
target = filepath.Join(c.LoadPrefix, path)
}
return c.resolveSymlink(target, path, force)
}