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unix: add SyscallNoError and RawSyscallNoError on Linux

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Add the SyscallNoError and RawSyscallNoError wrapper functions which are
used for syscalls that don't return an error. Also convert all applicable
syscalls to use these wrappers.

Updates golang/go#22924

Change-Id: Ie143abc99de8d12d36b67ac278e08d7565f73ce0
Reviewed-on: https://go-review.googlesource.com/85756
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser authored and Brad Fitzpatrick committed 2018-01-03 16:03:02 +00:00
1 parent 83801418e1
commit 28a7276518
21 files changed
+370 -130
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unix/mksyscall.pl
+14 -2
View File
@@ -210,7 +210,15 @@ while(<>) {
# Determine which form to use; pad args with zeros.
my $asm = "Syscall";
if ($nonblock) {
$asm = "RawSyscall";
if ($errvar ne "") {
$asm = "RawSyscall";
} else {
$asm = "RawSyscallNoError";
}
} else {
if ($errvar eq "") {
$asm = "SyscallNoError";
}
}
if(@args <= 3) {
while(@args < 3) {
@@ -284,7 +292,11 @@ while(<>) {
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
if ($errvar ne "") {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
} else {
$text .= "\t$ret[0], $ret[1] := $call\n";
}
}
$text .= $body;