This syscall was inadvertently exported when fixing
Getrlimit/Setrlimit on 32-bit platforms.
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6458051
Darwin kernels have a bug in accept() where error result from
an internal call is not checked and socket is accepted instead
of ECONNABORTED error. However, such sockets have no sockaddr,
which results in EAFNOSUPPORT error from anyToSockaddr, making
Go http servers running on Mac OS X easily susceptible to
denial of service from simple port scans with nmap.
Fixes#3849.
R=golang-dev, adg, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6456045
The previous version was not handling an off_t (64 bit)
parameter on 32 bit i386 systems. This patch splits sendfile
into two implementations in their respective arch-specific files.
Tested on FreeBSD amd64 and i386.
R=bradfitz
CC=golang-dev
https://golang.org/cl/6356048
This slipped in with the implementation of Getpid in CL 5909043.
I'd exclude that CL entirely but it is tangled up in the Win32finddata changes.
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6297065
Preserve old API by using correct struct in system call
and then copying the results, as we did for SetsockoptLinger.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6307065
pipe2 is equivalent to pipe with flags set to 0.
However, pipe2 was only added recently. Using pipe
instead improves compatibility with NetBSD 5.
R=jsing
CC=golang-dev
https://golang.org/cl/6268045
RawSockaddrDatalink and SockaddrDatalink need to match - make Data
have length 12 for both.
R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6223051
Fix mkerrors.sh so that it works on NetBSD.
Remove directory mode bits from types - this already appears in errors.
Regenerate the z* files now that cgo is working.
R=golang-dev, m4dh4tt3r, r
CC=golang-dev
https://golang.org/cl/6201077
Manually repair/update z* files for netbsd - this allows Go to
compile again on 386.
R=golang-dev, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6194064
Instead use a new type, "Note", whose underlying
type is just a string. This change allows us to
remove the exported os.Plan9Note type.
R=bradfitz, seed, rsc
CC=golang-dev
https://golang.org/cl/6015046
Now that Go will no longer work on OpenBSD versions prior to 5.1,
remove the sysctl workaround that was needed for 5.0 and earlier.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6116050
1. Readdirnames was erroneously returning an
empty slice on every invocation.
2. The logic for determining which files to
close before exec was incorrect. If the
set of files to be kept open (provided by
the caller) did not include the files
opened at startup, those files would be
accidentally closed.
I also cleaned up readdupdevice while I was
in the vicinity.
R=golang-dev, seed, rsc
CC=golang-dev
https://golang.org/cl/6016044
syscall.Exit would originally kill only the calling
Go proc, leaving behind other procs in the
same group. This change makes syscall.Exit call
runtime·exit, which due to CL
https://golang.org/cl/5617048
will cleanly exit all the Go procs in the group.
R=golang-dev, rsc, rminnich, remyoudompheng, ality, john
CC=golang-dev, mirtchovski
https://golang.org/cl/6036051
This change comes from CL 5536043,
created by Andrey Mirtchovski. His
description follows:
"The plan9 exec child handler does not manage
dup-ed fds from the parent correctly: when a
dup-ed file descriptor appears in the child's fd
list it is closed when first encountered and then
subsequent attempt to dup it later in Pass 2 fails,
resulting in 'fork/exec: fd out of range or not
open'."
R=golang-dev, rminnich, ality
CC=golang-dev, mirtchovski, rsc
https://golang.org/cl/6009046
Building go currently fails on NetBSD, thus the regeneration
scripts do not run correctly. With these changes, at least
the go_bootstrap tool builds correctly.
R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/5695064
Tested using 6g and gccgo on x86_64 GNU/Linux and using gccgo
on PowerPC GNU/Linux (which is big-endian).
R=golang-dev, bradfitz, mikioh.mikioh, iant
CC=golang-dev
https://golang.org/cl/5975073
It is unprecedented to add tests to package syscall, especially
system-specific ones. Not a policy worth changing right before Go 1
is cut.
The sole existing test, passfd_test.go, contains the line
// +build linux darwin probablyfreebsd probablyopenbsd
which argues that this is not a subject to be undertaking likely.
Note that passfd_test.go also went in just now. It's the only test
in syscall.
Deleting for now, will reconsider after Go 1.
R=golang-dev, bradfitz, r, dsymonds
CC=golang-dev
https://golang.org/cl/5846063
This moves the various CA root fetchers from crypto/tls into crypto/x509.
The move was brought about by issue 2997. Windows doesn't ship with all
its root certificates, but will instead download them as-needed when using
CryptoAPI for certificate verification.
This CL changes crypto/x509 to verify a certificate using the system root
CAs when VerifyOptions.RootCAs == nil. On Windows, this verification is
now implemented using Windows's CryptoAPI. All other root fetchers are
unchanged, and still use Go's own verification code.
The CL also fixes the hostname matching logic in crypto/tls/tls.go, in
order to be able to test whether hostname mismatches are honored by the
Windows verification code.
The move to crypto/x509 also allows other packages to use the OS-provided
root certificates, instead of hiding them inside the crypto/tls package.
Fixes#2997.
R=agl, golang-dev, alex.brainman, rsc, mikkel
CC=golang-dev
https://golang.org/cl/5700087
CL 3075041 says ARM is not little-endian, but my test suggests otherwise.
My test program is:
package main
import ("fmt"; "syscall"; "os")
func main() {
err := syscall.Fallocate(1, 1/*FALLOC_FL_KEEP_SIZE*/, 0, int64(40960));
fmt.Fprintln(os.Stderr, err)
}
Without this CL, ./test > testfile will show: file too large; and strace shows:
fallocate(1, 01, 0, 175921860444160) = -1 EFBIG (File too large)
With this CL, ./test > testfile will show: <nil>; and strace shows:
fallocate(1, 01, 0, 40960) = 0
Quoting rsc:
"[It turns out that] ARM syscall ABI requires 64-bit arguments to use an
(even, odd) register pair, not an (odd, even) pair. Switching to "big-endian"
worked because it ended up using the high 32-bits (always zero in the tests
we had) as the padding word, because the 64-bit argument was the last one,
and because we fill in zeros for the rest of the system call arguments, up to
six. So it happened to work."
I updated mksyscall_linux.pl to accommodate the register pair ABI requirement,
and removed all hand-tweaked syscall routines in favor of the auto-generated
ones. These including: Ftruncate, Truncate, Pread and Pwrite.
Some recent Linux/ARM distributions do not bundle kernel asm headers,
so instead we always get latest asm/unistd.h from git.kernel.org (just like
what we do for FreeBSD).
R=ken, r, rsc, r, dave, iant
CC=golang-dev
https://golang.org/cl/5726051
1, IMO, the fatal error "regfree: not a register" from 5g when
compiling runtime/debug.go is due to gcc miscompile, it doesn't
show up when compiled with -O0. But I still haven't thought of
a way to fix this, should all ARM builds be built with -O0?
2, fixed mksysnum_linux.pl, so zsysnum_linux_arm.go no longer
needs to be hand-generated.
3, regen all in pkg syscall for Linux/ARM on Debian 6.0
This CL is somewhat big, I'd like to split it if necessary.
R=rsc, dave
CC=golang-dev
https://golang.org/cl/5659044
Restore package os/signal, with new API:
Notify replaces Incoming, allowing clients
to ask for certain signals only. Also, signals
go to everyone who asks, not just one client.
This could plausibly move into package os now
that there are no magic side effects as a result
of the import.
Update runtime for new API: move common Unix
signal handling code into signal_unix.c.
(It's so easy to do this now that we don't have
to edit Makefiles!)
Tested on darwin,linux 386,amd64.
Fixes#1266.
R=r, dsymonds, bradfitz, iant, borman
CC=golang-dev
https://golang.org/cl/3749041
You could argue for changing all the others, but
Linux is outvoted, and the only time it matters
is when newfd==-1, in which case you can call Dup.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5650073
make syscall.ProcAttr.Files be []uintptr
all.bash passes on Linux.
things seem to compile on GOOS={darwin,windows}
R=golang-dev, mattn.jp, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/5653055
The rule is that build directives can be preceded only
by blank lines and other line comments, not /* */ comments.
R=golang-dev, adg, bradfitz
CC=golang-dev
https://golang.org/cl/5619045
This can drastically reduce the number of system
calls made by programs that repeatedly query the
environment.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5599054
Consequently, remove many package Makefiles,
and shorten the few that remain.
gomake becomes 'go tool make'.
Turn off test phases of run.bash that do not work,
flagged with $BROKEN. Future CLs will restore these,
but this seemed like a big enough CL already.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5601057
This CL makes both InterfaceAddrs and Addrs method on Interface
return IPNet struct for representing interface address and mask
like below:
interface "lo0": flags "up|loopback|multicast", ifindex 1, mtu 16384
interface address "fe80::1/64"
interface address "127.0.0.1/8"
interface address "::1/128"
joined group address "ff02::fb"
joined group address "224.0.0.251"
joined group address "ff02::2:65d0:d71e"
joined group address "224.0.0.1"
joined group address "ff01::1"
joined group address "ff02::1"
joined group address "ff02::1:ff00:1"
Fixes#2571.
R=rsc
CC=golang-dev
https://golang.org/cl/5489062
Not all syscalls are implemented, but many are. On the suggestion
of Joel Sing <jsing@google.com>, the generated files were added
with hg add instead of hg cp, since they are generated on an OS
dependant basis.
R=golang-dev, jsing, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/5491050
syscall_windows.go contains a small demo, which calls the obsolete
syscall.Errstr function.
R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/5475044
The values have been generated only for the i386 and amd64 architectures.
R=golang-dev, mikioh.mikioh, dsymonds
CC=bradfitz, dsymonds, golang-dev
https://golang.org/cl/5452060
For now a pair of socket options SOL_SOCKET and SO_BINDTODEVICE
is supported on Linux only. I'd like to demote BindToDevice API
to syscall level because it's Linux dependent one.
In the near future, probably we may have a bit more portable
API that using IPROTO_IP/IPV6 level socket options to specify,
identify an inbound, outbound IP interface on incoming, outgoing
UDP and raw IP packets.
R=cw, golang-dev
CC=golang-dev
https://golang.org/cl/5447071
exec_plan9.go:
. Adjusted return argument to match other changes.
#mksyscall.pl:
. Replaced "err = e1" with "err = NewError(e1)".
* Change abandoned, Russ made a better suggestion involving
syscall_plan9.go.
syscall_plan9.go:
. Removed redundant "err = nil" lines.
. Adjusted //sys lines for mksyscall.pl.
* Replaced "err string" with "err ErrorString" in return arguments.
zsyscall_plan9_386.go:
. This module ought to be generated, but as it exists in the
repository, I rebuilt it and checked that it matched expectations.
Anybody is welcome to remove this from the repository if
they feel it should go, but remember that not all Plan 9
installations have a working Perl.
R=rsc
CC=ality, golang-dev
https://golang.org/cl/5411046
Work around a bug that was fixed after OpenBSD 5.0 - a request for
kern.hostname or kern.domainname with a nil value for oldp will result
in a length of zero being returned. If we hit this case use a length
of MAXHOSTNAMELEN (256).
R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/5408041
Move the existing darwin/freebsd specific nametomib implementation
into the respective operating system dependent files.
Provide a nametomib implementation for openbsd, which operates on a
sysctl MIB that has been pre-generated from the various system headers
by mksysctl_openbsd.pl.
R=rsc
CC=golang-dev
https://golang.org/cl/4935044
The environment is needed by package time, which
we want not to depend on os (so that os can use
time.Time), so push down into syscall.
Delete syscall.Sleep, now unnecessary.
The package os environment API is preserved;
it is only the implementation that is moving to syscall.
Delete os.Envs, which was undocumented,
uninitialized on Windows and Plan 9, and
not maintained by Setenv and Clearenv.
Code can call os.Environ instead.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5370091
- syscall (not os) now defines the Errno type.
- the low-level assembly functions Syscall, Syscall6, and so on
return Errno, not uintptr
- syscall wrappers all return error, not uintptr.
R=golang-dev, mikioh.mikioh, r, alex.brainman
CC=golang-dev
https://golang.org/cl/5372080
Plan 9's await() returns '' for nil exit status but programs, most notably gotest,
see this as an error return.
R=rsc
CC=golang-dev
https://golang.org/cl/5305079
This change splits terminal handling from exp/ssh, as suggested
several times in the ssh code review.
shell.go and shell_test.go are copies from exp/ssh with minimal
changes, so don't need another full review. A future CL will remove
that code from exp/ssh.
R=bradfitz, r, dave, rsc
CC=golang-dev
https://golang.org/cl/5278049
New DLL and Proc types to manage and call dll functions. These were
used to simplify syscall tests in runtime package. They were also
used to implement LazyDLL and LazyProc.
LazyProc, like Proc, now have Call function, that just a wrapper for
SyscallN. It is not as efficient as Syscall, but easier to use.
NewLazyDLL now supports non-ascii filenames.
LazyDLL and LazyProc now have Load and Find methods. These can be used
during runtime to discover if some dll functions are not present.
All dll functions now return errors that fit os.Error interface. They
also contain Windows error number.
Some of these changes are suggested by jp.
R=golang-dev, jp, rsc
CC=golang-dev
https://golang.org/cl/5272042
Notably, the "data" argument should be nil if no options are
given, or (at least) the cgroup filesystem will refuse to
mount.
R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/5147047
Fixes#1998.
ztypes_linux_arm.go has been regenerated on an arm5 debian sid host and
includes a few new constants.
R=golang-dev, mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/5240047
The go/build package already recognizes
system-specific file names like
mycode_darwin.go
mycode_darwin_386.go
mycode_386.s
However, it is also common to write files that
apply to multiple architectures, so a recent CL added
to go/build the ability to process comments
listing a set of conditions for building. For example:
// +build darwin freebsd openbsd/386
says that this file should be compiled only on
OS X, FreeBSD, or 32-bit x86 OpenBSD systems.
These conventions are not yet documented
(hence this long CL description).
This CL adds build comments to the multi-system
files in the core library, a step toward making it
possible to use go/build to build them.
With this change go/build can handle crypto/rand,
exec, net, path/filepath, os/user, and time.
os and syscall need additional adjustments.
R=golang-dev, r, gri, r, gustavo
CC=golang-dev
https://golang.org/cl/5011046
I don't know the protocol regarding the zsyscall files which appear to
be hand-generated, so I've re-done them and added them to the change.
R=rsc, alex.brainman, nigeltao
CC=golang-dev
https://golang.org/cl/4975060
Add openbsd 386 syscall support, partially based on the existing
freebsd 386 syscall implementation.
FTR zerrors_openbsd_386.go cannot currently be completely built on
openbsd/i386 due to what appears to be a gcc bug. The constants can be
successfully generated with -m32 on openbsd/amd64 and the error
table can then be generated on openbsd/i386.
R=rsc
CC=golang-dev
https://golang.org/cl/4969045
Add support for syscalls on openbsd amd64. This is based on the
existing freebsd amd64 implementation.
R=mikioh.mikioh, rsc, yourcomputerpal
CC=golang-dev
https://golang.org/cl/4798060
All tests enabled by default passes except those in timeout_test.go.
For TestLookupPort, add an entry for "bootps" in /lib/ndb/common
(Plan 9 calls it "bootp"). I've sent out a patch to fix this.
R=paulzhol, rsc, mikioh.mikioh
CC=ality, golang-dev
https://golang.org/cl/4779041
Multicast address handling is not consistent across all BSDs. Move
the multicast address handling code into OS dependent files. This
will be needed for OpenBSD support.
R=mikioh.mikioh, golang-dev
CC=golang-dev
https://golang.org/cl/4809074
The mmap system call varies across BSDs. Move mmap and munmap into
the operating system dependent files. This will be needed to add
syscall support for OpenBSD.
R=rsc
CC=golang-dev
https://golang.org/cl/4822056
Before this change, syscall package would load
all dlls used anywhere in the go tree on startup.
For example, this program:
package main
import "fmt"
func main() {
fmt.Printf("Hello world\n")
}
would load these dlls
kernel32.dll
advapi32.dll
shell32.dll
wsock32.dll
ws2_32.dll
dnsapi.dll
iphlpapi.dll
Most of these dlls are network related and are not used
in this program. Now the same program loads only
kernel32.dll
shell32.dll
This decreases start times somewhat.
This also relaxes the rules of which dlls can be included
in the standard library. We could now include system calls
that are not available on all versions of Windows, because
we could decide if we should call them during runtime.
R=rsc, vcc.163
CC=golang-dev
https://golang.org/cl/4815046
Not all BSDs have the same pipe() syscall implementation - move the Darwin/FreeBSD specific implementation into their respective OS syscall files. This will be needed to add OpenBSD syscall support.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4823057
did darwin on mac with older, not broken xcode.
did linux arm by copying diffs from linux 386.
did freebsd amd64 by copying diffs from freebsd 386.
R=golang-dev, r, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/4629067
These changes add a Ctty int field to the Unix syscall.ProcAttr which,
if set >= 0 in conjuction with Setsid=true, will be used by
forkAndExecInChild as the file descriptor for the new child's
controlling terminal.
Necessary changes have been made to mkerrors.sh to generate defs for
TIOC*, though changes to its output files are not included here.
The changes made should support Linux, FreeBSD and Darwin, at least.
R=iant, bradfitz, r, rsc, borman
CC=golang-dev
https://golang.org/cl/4532075
The ptrace syscall remains gutted on darwin, but usable. This
also makes the syscall addition process reproducible on darwin
instead of relying on a file path in rsc's home directory.
I've also removed an override of $PATH in env.bash that made
tooling harder.
R=rsc, dave, r
CC=golang-dev
https://golang.org/cl/4517147
Move mmapper from syscall.go to syscall_unix.go.
Remove Sendfile from syscall_plan9.go.
R=rsc, alex.brainman
CC=golang-dev
https://golang.org/cl/4368060
Add IPv6Mreq and Inet6Pktinfo for specifying the network interface.
Rename IpMreq to IPMreq, SetsockoptIpMreq to SetsockoptIPMreq.
R=rsc, dave, robert.hencke
CC=golang-dev
https://golang.org/cl/4532098
On windows, the command line is passed as a single null-terminated string. While the automatic parameter escaping done by syscall.StartProcess works fine with most Windows programs, some applications do their own custom parsing of the command line, in which case the automatic escaping becomes harmful.
This CL adds a new extra CmdLine field to syscall.ProcAttr that will be used as the raw/unescaped command line if not empty.
Fixes#1849.
R=golang-dev, alex.brainman, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4548050
This change fixes generation of "shadow" variables for bool parameters.
Before the change, it was naming all bool variables with the same name of _p0.
Now it calls them _p0, _p1, ... So the code could compile.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4479047
note: due to issue 1466 the Msghdr and BpfProgram
struct for src/pkg/syscall/ztypes_darwin_386.go,
src/pkg/syscall/ztypes_darwin_amd64.go had to be
edited after the godefs generation.
R=rsc
CC=golang-dev
https://golang.org/cl/4403042
The SW_HIDE parameter looks like the only way for a windows GUI application to execute a CLI subcommand without having a shell windows appearing.
R=brainman, golang-dev, bradfitzgo, rsc1
CC=golang-dev
https://golang.org/cl/4439055
* tweak mksyscall*.pl to be more gofmt-compatible.
* add mkall.sh -syscalls option.
* add sys/mman.h constants on OS X
R=r, eds, niemeyer
CC=golang-dev
https://golang.org/cl/4369044
Moved the details of how to read a directory
and how to parse the results behind the new
syscall functions ReadDirent and ParseDirent.
Now os needs just one copy of Readdirnames
for the three Unix variants, and it no longer
imports "unsafe".
R=r, r2
CC=golang-dev
https://golang.org/cl/4368048
- StartProcess will work with relative (to attr.Dir, not
current directory) executable filenames
- StartProcess will only work if executable filename points
to the real file, it will not search for executable in the
$PATH list and others (see CreateProcess manual for details)
- StartProcess argv strings can contain any characters
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4306041
Permit system calls to be designated as non-blocking, meaning
that we simply call them without involving the scheduler.
This change by itself is mostly performance neutral. In
combination with a following change to the net package there
is a performance advantage.
R=rsc, dfc, r2, iant2, rsc1
CC=golang-dev
https://golang.org/cl/4278055
Note that, while the final argument of mount(2) is a void*, in
practice all filesystem implementations treat it as a string
of comma-separated mount options.
R=bradfitzgo, bradfitzwork
CC=golang-dev
https://golang.org/cl/4247070
The published interface is the simple version of the syscall,
allowing all reboot functions except for the esoteric
LINUX_REBOOT_CMD_RESTART2.
R=golang-dev, bradfitzgo, bradfitzwork
CC=golang-dev
https://golang.org/cl/4256060
FreeBSD's execve implementation has an integer underflow in a bounds test which
causes it to erroneously think the argument list is too long when argv[0] is
longer than interpreter + path.
R=rsc, bradfitz, rsc1
CC=golang-dev
https://golang.org/cl/4259056
