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unix: replace "mksyscall.pl" script with a Go program

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Port mksyscall.pl Perl script to mksyscall.go.
mkall scripts are modified to run mksyscall.go.
Running ./mkall.sh does not generate any git diff besides
the command name in comments of generated files.

Updates golang/go#27779

Change-Id: I8c6eb852e6821f4a91dc03cc042d8d343f1bcf66
Reviewed-on: https://go-review.googlesource.com/c/150217
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Visweswara R
2018-11-28 09:27:32 +00:00
committed by Tobias Klauser
parent 62eef0e2fa
commit 4ed8d59d0b
31 changed files with 611 additions and 403 deletions
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unix/linux/mkall.go
+19 -9
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@@ -202,22 +202,32 @@ func makeCommand(name string, args ...string) *exec.Cmd {
return cmd
}
// Set GOARCH for target and build environments.
func (t *target) setTargetBuildArch(cmd *exec.Cmd) {
// Set GOARCH_TARGET so command knows what GOARCH is..
cmd.Env = append(os.Environ(), "GOARCH_TARGET="+t.GoArch)
// Set GOARCH to host arch for command, so it can run natively.
for i, s := range cmd.Env {
if strings.HasPrefix(s, "GOARCH=") {
cmd.Env[i] = "GOARCH=" + BuildArch
}
}
}
// Runs the command, pipes output to a formatter, pipes that to an output file.
func (t *target) commandFormatOutput(formatter string, outputFile string,
name string, args ...string) (err error) {
mainCmd := makeCommand(name, args...)
if name == "mksyscall" {
args = append([]string{"run", "mksyscall.go"}, args...)
mainCmd = makeCommand("go", args...)
t.setTargetBuildArch(mainCmd)
}
fmtCmd := makeCommand(formatter)
if formatter == "mkpost" {
fmtCmd = makeCommand("go", "run", "mkpost.go")
// Set GOARCH_TARGET so mkpost knows what GOARCH is..
fmtCmd.Env = append(os.Environ(), "GOARCH_TARGET="+t.GoArch)
// Set GOARCH to host arch for mkpost, so it can run natively.
for i, s := range fmtCmd.Env {
if strings.HasPrefix(s, "GOARCH=") {
fmtCmd.Env[i] = "GOARCH=" + BuildArch
}
}
t.setTargetBuildArch(fmtCmd)
}
// mainCmd | fmtCmd > outputFile
@@ -472,7 +482,7 @@ func (t *target) makeZSyscallFile() error {
args := append(t.mksyscallFlags(), "-tags", "linux,"+t.GoArch,
"syscall_linux.go", archSyscallFile)
return t.commandFormatOutput("gofmt", zsyscallFile, "./mksyscall.pl", args...)
return t.commandFormatOutput("gofmt", zsyscallFile, "mksyscall", args...)
}
// makes the zerrors_linux_$GOARCH.go file