mirror of
https://github.com/bdnugget/eggos.git
synced 2026-11-07 04:17:27 +00:00
Robin
0bb2d1def6
* drivers/vbe: add docs Also, remove unused bootloaderMagic constant. A corresponding constant is defined in and used by the multiboot package. * drivers/qemu: add docs * drivers/multiboot: fix typo; s/DrivesrAddr/DriversAddr/ * all: add go:build comments for Go build tags, as used by Go 1.17 ref: https://go.dev/doc/go1.17#build-lines This commit was automated using goimports: find . -type f -name '*.go' | xargs -I '{}' goimports -w '{}'
67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
//go:build ignore
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// +build ignore
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package main
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"log"
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)
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func hasErrCode(idx int) bool {
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return idx == 8 || (idx >= 10 && idx <= 14) || idx == 17
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}
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func genasm() {
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buf := new(bytes.Buffer)
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buf.WriteString("// Code generated by genvector.go using 'go generate'. DO NOT EDIT.\n")
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buf.WriteString(`#include "textflag.h"`)
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buf.WriteString("\n\n")
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for i := 0; i < 256; i++ {
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fmt.Fprintf(buf, "TEXT ·trap%d(SB), NOSPLIT, $0-0\n", i)
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if !hasErrCode(i) {
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buf.WriteString(" PUSHQ $0\n")
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}
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fmt.Fprintf(buf, " PUSHQ $%d\n", i)
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buf.WriteString(" JMP alltraps(SB)\n")
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buf.WriteString(" POPQ AX\n")
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if !hasErrCode(i) {
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buf.WriteString(" POPQ AX\n")
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}
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buf.WriteString(" RET\n\n")
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}
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err := ioutil.WriteFile("vectors.s", buf.Bytes(), 0644)
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if err != nil {
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log.Fatal(err)
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}
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}
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func gengo() {
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buf := new(bytes.Buffer)
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buf.WriteString("// Code generated by genvector.go using 'go generate'. DO NOT EDIT.\n")
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buf.WriteString("package kernel\n\n")
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for i := 0; i < 256; i++ {
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fmt.Fprintf(buf, "//go:nosplit\n")
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fmt.Fprintf(buf, "func trap%d()\n", i)
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}
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buf.WriteString("\n")
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buf.WriteString("var vectors = [...]func(){\n")
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for i := 0; i < 256; i++ {
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fmt.Fprintf(buf, "trap%d,\n", i)
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}
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buf.WriteString("}\n\n")
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err := ioutil.WriteFile("vectors.go", buf.Bytes(), 0644)
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if err != nil {
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log.Fatal(err)
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}
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}
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func main() {
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genasm()
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gengo()
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}
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