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unix: add support for openbsd/ppc64

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Updates golang/go#56001

Change-Id: Ic2c7db7a0c2056d3bbc153066c187f27508cb96c
Reviewed-on: https://go-review.googlesource.com/c/sys/+/439978
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Joel Sing
2022-10-10 17:02:43 +00:00
parent 3938a4f48c
commit 090e33056c
11 changed files with 6085 additions and 8 deletions
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unix/mkasm.go
+9 -4
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@@ -23,7 +23,7 @@ func archPtrSize(arch string) int {
switch arch {
case "386", "arm":
return 4
case "amd64", "arm64", "mips64", "riscv64":
case "amd64", "arm64", "mips64", "ppc64", "riscv64":
return 8
default:
log.Fatalf("Unknown arch %q", arch)
@@ -31,7 +31,7 @@ func archPtrSize(arch string) int {
}
}
func generateASMFile(arch string, inFileNames []string, outFileName string) map[string]bool {
func generateASMFile(goos, arch string, inFileNames []string, outFileName string) map[string]bool {
trampolines := map[string]bool{}
var orderedTrampolines []string
for _, inFileName := range inFileNames {
@@ -62,7 +62,12 @@ func generateASMFile(arch string, inFileNames []string, outFileName string) map[
fmt.Fprintf(&out, "#include \"textflag.h\"\n")
for _, fn := range orderedTrampolines {
fmt.Fprintf(&out, "\nTEXT %s_trampoline<>(SB),NOSPLIT,$0-0\n", fn)
fmt.Fprintf(&out, "\tJMP\t%s(SB)\n\n", fn)
if goos == "openbsd" && arch == "ppc64" {
fmt.Fprintf(&out, "\tCALL\t%s(SB)\n", fn)
fmt.Fprintf(&out, "\tRET\n")
} else {
fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
}
fmt.Fprintf(&out, "GLOBL\t·%s_trampoline_addr(SB), RODATA, $%d\n", fn, ptrSize)
fmt.Fprintf(&out, "DATA\t·%s_trampoline_addr(SB)/%d, $%s_trampoline<>(SB)\n", fn, ptrSize, fn)
}
@@ -127,7 +132,7 @@ func main() {
zsyscallArchFilename,
}
trampolines := generateASMFile(arch, inFileNames, zsyscallASMFileName)
trampolines := generateASMFile(goos, arch, inFileNames, zsyscallASMFileName)
if goos == "darwin" {
writeDarwinTest(trampolines, fmt.Sprintf("darwin_%s_test.go", arch), arch)