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Make %x formatting verb in early.Printf behave like fmt.Printf

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The %x verb in fmt.Printf does not add the "0x" prefix automatically so
early.Printf has been changed to match this behavior.
This commit is contained in:
Achilleas Anagnostopoulos 2017-05-15 07:05:07 +01:00
parent 1d8d81095c
commit 52266c9f66
2 changed files with 6 additions and 13 deletions
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7
kernel/kfmt/early/early_fmt.go
View File

@ -246,13 +246,6 @@ func fmtInt(v interface{}, base, padLen int) {
buf[right] = padCh
}
// Apply hex prefix
if base == 16 {
buf[right] = 'x'
buf[right+1] = '0'
right += 2
}
// Apply negative sign to the rightmost blank character (if using enough padding);
// otherwise append the sign as a new char
if sval < 0 {

12
kernel/kfmt/early/early_fmt_test.go
View File

@ -71,7 +71,7 @@ func TestPrintf(t *testing.T) {
"uint arg: 777",
},
{
func() { printfn("uint arg: %x", uint32(0xbadf00d)) },
func() { printfn("uint arg: 0x%x", uint32(0xbadf00d)) },
"uint arg: 0xbadf00d",
},
{
@ -83,16 +83,16 @@ func TestPrintf(t *testing.T) {
"uint arg with padding: '0777'",
},
{
func() { printfn("uint arg with padding: '%10x'", uint64(0xbadf00d)) },
func() { printfn("uint arg with padding: '0x%10x'", uint64(0xbadf00d)) },
"uint arg with padding: '0x000badf00d'",
},
{
func() { printfn("uint arg longer than padding: '%5x'", int64(0xbadf00d)) },
func() { printfn("uint arg longer than padding: '0x%5x'", int64(0xbadf00d)) },
"uint arg longer than padding: '0xbadf00d'",
},
// pointers
{
func() { printfn("uintptr %x", uintptr(0xb8000)) },
func() { printfn("uintptr 0x%x", uintptr(0xb8000)) },
"uintptr 0xb8000",
},
// ints
@ -107,7 +107,7 @@ func TestPrintf(t *testing.T) {
},
{
func() { printfn("int arg: %x", int32(-0xbadf00d)) },
"int arg: -0xbadf00d",
"int arg: -badf00d",
},
{
func() { printfn("int arg with padding: '%10d'", int64(-12345678)) },
@ -123,7 +123,7 @@ func TestPrintf(t *testing.T) {
},
{
func() { printfn("int arg longer than padding: '%5x'", int(-0xbadf00d)) },
"int arg longer than padding: '-0xbadf00d'",
"int arg longer than padding: '-badf00d'",
},
// multiple arguments
{