Ken Thompson [Sat, 17 Jul 2010 23:32:40 +0000 (16:32 -0700)]
1. got 29 (Mpscale) more bits of precision
out of floating constant multiply
2. added rounding code to "const fix=float"
to allow up to 29 (Mpscale) bits of
slop and still get an exact fixed constant.
Ken Thompson [Fri, 16 Jul 2010 03:21:33 +0000 (20:21 -0700)]
interpret lines that look like
//line 10 units.y
which is equiv to c
#line 10 units.y
the purpose is to generate diagnostics
that correctly point to preprocessed source.
mime/multipart and HTTP multipart/form-data support
Somewhat of a work-in-progress (in that MIME is a large spec), but this is
functional and enough for discussion and/or code review.
In addition to the unit tests, I've tested with curl and Chrome with
a variety of test files, making sure the digests of files are unaltered
when read via a multipart Part.
* remember #defined names, so that C.stdout can refer
to the real name (on OS X) __stdoutp.
* better handling of #defined constant expressions
* allow n, err = C.strtol("asdf", 0, 123) to get errno as os.Error
* write all output files to current directory
* don't require gcc output if there was no input
Also in this CL:
* Removed util.go, as its functionality is in big
* Removed some semicolons from the code generated by gen.go
* Added a generate target to Makefile
* Removed an outdated TODO from value.go
Peter Mundy [Tue, 13 Jul 2010 00:31:51 +0000 (10:31 +1000)]
os: Use TempFile with default TempDir for temp test files
Use io/ioutil.TempFile with default os.TempDir for temporary test files.
For os_test.go temporary test files, use a local file system and OS
independent directory names. Avoid problems with NFS.
Robert Griesemer [Mon, 12 Jul 2010 23:09:27 +0000 (16:09 -0700)]
big: added a few missing functions:
- sign to determine if a value is < 0, == 0, > 0
- abs to compute absolute value
- Rat.IsInt to test if a rational number is representable as an integer
test/fixedbugs/bug243.go: instead of closing stdout,
remove the print statements.
This change is because of the port of gccgo to RTEMS.
These tests use the GCC DejaGNU framework. In some cases,
the tests need to be run on qemu where the status code
cannot be sent back to DejaGNU, so it prints the exit status
by putting a wrapper around the exit and abort calls.
This testcase closes the stdout, and hence prohibits DejaGNU
from knowing the status in such cases, and causes this test
to be wrongly declared as a failure.
* Allow an exponent part. This is necessary for exp/eval.
* Fix a bug for input that had no numbers after the decimal.
* In Int.SetString, allow a leading + sign.
* In Int.SetString, error if the input is "-" with no number.
* In nat.scan, normalize the resulting nat.
(Here, quoted strings are the official AMD names.)
The amd64 "movsxd" instruction, when invoked
with a 64-bit REX prefix, moves and sign extends
a 32-bit value from register or memory into a
64-bit register. 6.out.h spells this MOVLQSX.
6.out.h also includes MOVLQZX, the zero extending
version, which it implements as "movsxd" without
the REX prefix. Without the REX prefix it's only sign
extending 32 bits to 32 bits (i.e., not doing anything
to the bits) and then storing in a 32-bit register.
Any write to a 32-bit register zeros the top half of the
corresponding 64-bit register, giving the advertised effect.
This particular implementation of the functionality is
non-standard, because an ordinary 32-bit "mov" would
do the same thing.
Because it is non-standard, it is often mishandled or
not handled by binary translation tools like valgrind.
Switching to the standard "mov" makes the binaries
work better with those tools.
It's probably useful in 6c and 6g to have an explicit
instruction, though, so that the intent of the size
change is clear. Thus we leave the concept of MOVLQZX
and just implement it by the standard "mov" instead of
the non-standard 32-bit "movsxd".
With these changes, goinstall is now able to use branches
maintained with Bazaar located in Launchpad.
Project aliases such as /project and /project/series are
supported in addition to specific user or team branches
such as /~user/project/branch. Temporary branches under
the +junk special project are also supported.
As a curious side effect, since Launchpad is able to import
code from other locations, they can be indirectly
accessible too if desired.
cgo: use slash-free relative paths for .so references
The Makefile and cgo now rewrite / to _ when creating the path.
The .so for gosqlite.googlecode.com/hg/sqlite is named
cgo_gosqlite.googlecode.com_hg_sqlite.so, and then 6l and 8l
both include a default rpath of $GOROOT/pkg/$GOOS_$GOARCH.
This should make it easier to move binaries from one system
to another.
Fixes #857.
R=iant, r
CC=golang-dev
https://golang.org/cl/1700048
Adam Langley [Wed, 30 Jun 2010 22:02:31 +0000 (18:02 -0400)]
x509: support non-self-signed certs.
For generating non-self-signed certs we need to be able to specify a
public key (for the signee) which is different from the private key (of
the signer).
Ian Lance Taylor [Wed, 30 Jun 2010 20:14:46 +0000 (13:14 -0700)]
io: Avoid race condition in pipe.
One goroutine started up and was waiting in rw. Then another
goroutine decided to close the pipe. The closing goroutine
stalled calling p.io.Lock() in pipeHalf.close. (This happened
in gccgo). If the closing goroutine had been able to set the
ioclosed flag, it would have gone on to tell the runner that
the pipe was closed, which would then send an EINVAL to the
goroutine sleeping in rw. Unlocking p.io before sleeping in
rw avoids the race.