gcc/libgo
Ian Lance Taylor 9490b8da72 re PR go/60931 (libgo has issues when page size is not 4k)
PR go/60931

runtime: Fix garbage collector issue with non 4kB system page size

The go garbage collector tracks memory in terms of 4kB pages.
Most of the code checks getpagesize() at runtime and does the
right thing.

On a 64kB ppc64 box I see SEGVs in long running processes
which has been diagnosed as a bug in scavengelist.
scavengelist does a madvise(MADV_DONTNEED) without rounding
the arguments to the system page size.  A strace of one of the
failures shows the problem:

madvise(0xc211030000, 4096, MADV_DONTNEED) = 0

The kernel rounds the length up to 64kB and we mark 60kB of
valid data as no longer needed.

Round start up to a system page and end down before calling
madvise.

From-SVN: r209777
2014-04-25 04:29:07 +00:00
..
config ltmain.sh: Patch for Solaris. 2014-02-03 17:39:44 +00:00
go gofrontend: deduplicate C syscall function declarations 2014-04-17 23:39:23 +00:00
runtime re PR go/60931 (libgo has issues when page size is not 4k) 2014-04-25 04:29:07 +00:00
testsuite gotest: Recognize PPC ELF v2 function pointers in text section. 2013-11-19 02:14:40 +00:00
aclocal.m4
config.h.in libgo: Remove Solaris 8 & 9 support. 2014-04-16 20:33:57 +00:00
configure libgo: Remove Solaris 8 & 9 support. 2014-04-16 20:33:57 +00:00
configure.ac libgo: Remove Solaris 8 & 9 support. 2014-04-16 20:33:57 +00:00
godeps.sh
LICENSE
Makefile.am re PR go/59430 (os/user FAILs on Solaris) 2014-01-08 01:08:29 +00:00
Makefile.in re PR go/59430 (os/user FAILs on Solaris) 2014-01-08 01:08:29 +00:00
MERGE libgo: Update to Go 1.2.1 release. 2014-03-03 20:14:52 +00:00
merge.sh
mksysinfo.sh mksysinfo, net: Always define F_DUPFD_CLOEXEC. 2013-11-11 21:21:50 +00:00
PATENTS
README
README.gcc

See ../README.

This is the runtime support library for the Go programming language.
This library is intended for use with the Go frontend.

The library has only been tested on GNU/Linux using glibc.  It should
not be difficult to port to other operating systems.

The library has only been tested on x86/x86_64 systems.  It should not
be difficult to port to other architectures.

Directories:

go
  A copy of the Go library from http://golang.org/, with a few
  changes for gccgo.  Notably, the reflection interface is different.

runtime
  Runtime functions, written in C, which are called directly by the
  compiler or by the library.

syscalls
  System call support.

Contributing
============

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