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2016-11-16runtime: replace runtime1.goc with Go and C codeIan Lance Taylor1-82/+0
A step toward eliminating goc2c. Drop the exported parfor code; it was needed for tests in the past, but no longer is. The Go 1.7 runtime no longer uses parfor. Reviewed-on: https://go-review.googlesource.com/33324 From-SVN: r242509
2016-10-20runtime: rewrite interface code into GoIan Lance Taylor1-1/+1
I started to copy the Go 1.7 interface code, but the gc and gccgo representations of interfaces are too different. So instead I rewrote the gccgo interface code from C to Go. The code is largely the same as it was, but the names are more like those used in the gc runtime. I also copied over the string comparison functions, and tweaked the compiler to use eqstring when comparing strings for equality. Reviewed-on: https://go-review.googlesource.com/31591 From-SVN: r241384
2016-10-14runtime: copy cpuprof code from Go 1.7 runtimeIan Lance Taylor1-4/+0
This replaces runtime/cpuprof.goc with go/runtime/cpuprof.go and adjusts the supporting code in runtime/proc.c. This adds another case where the compiler needs to avoid heap allocation in the runtime package: when evaluating a method expression into a closure. Implementing this required moving the relevant code from do_get_backend to do_flatten, so that I could easily add a temporary variable. Doing that let me get rid of Bound_method_expression::do_lower. Reviewed-on: https://go-review.googlesource.com/31050 From-SVN: r241163
2016-09-29runtime: copy runtime.go and runtime1.go from Go 1.7Ian Lance Taylor1-10/+0
Also copy over cputicks.go, env_posix.go, vdso_none.go, stubs2.go, and a part of os_linux.go. Remove the corresponding functions from the C code in libgo/go/runtime. Add some transitional support functions to stubs.go. This converts several minor functions from C to Go. Reviewed-on: https://go-review.googlesource.com/29962 From-SVN: r240609
2016-08-30runtime: use -fgo-c-header to build C header fileIan Lance Taylor1-2/+2
Use the new -fgo-c-header option to build a header file for the Go runtime code in libgo/go/runtime, and use the new header file in the C runtime code in libgo/runtime. This will ensure that the Go code and C code share the same data structures as we convert the runtime from C to Go. The new file libgo/go/runtime/runtime2.go is copied from the Go 1.7 release, and then edited to remove unnecessary data structures and modify others for use with libgo. The new file libgo/go/runtime/mcache.go is an initial version of the same files in the Go 1.7 release, and will be replaced by the Go 1.7 file when we convert to the new memory allocator. The new file libgo/go/runtime/type.go describes the gccgo version of the reflection data structures, and replaces the Go 1.7 runtime file which describes the gc version of those structures. Using the new header file means changing a number of struct fields to use Go naming conventions (that is, no underscores) and to rename constants to have a leading underscore so that they are not exported from the Go package. These names were updated in the C code. The C code was also changed to drop the thread-local variable m, as was done some time ago in the gc sources. Now the m field is always accessed using g->m, where g is the single remaining thread-local variable. This in turn required some adjustments to set g->m correctly in all cases. Also pass the new -fgo-compiling-runtime option when compiling the runtime package, although that option doesn't do anything yet. Reviewed-on: https://go-review.googlesource.com/28051 From-SVN: r239872
2015-10-31runtime: Remove now unnecessary pad field from ParFor.Ian Lance Taylor1-6/+13
It is not needed due to the removal of the ctx field. Reviewed-on: https://go-review.googlesource.com/16525 From-SVN: r229616
2015-01-15libgo, compiler: Upgrade libgo to Go 1.4, except for runtime.Ian Lance Taylor1-0/+13
This upgrades all of libgo other than the runtime package to the Go 1.4 release. In Go 1.4 much of the runtime was rewritten into Go. Merging that code will take more time and will not change the API, so I'm putting it off for now. There are a few runtime changes anyhow, to accomodate other packages that rely on minor modifications to the runtime support. The compiler changes slightly to add a one-bit flag to each type descriptor kind that is stored directly in an interface, which for gccgo is currently only pointer types. Another one-bit flag (gcprog) is reserved because it is used by the gc compiler, but gccgo does not currently use it. There is another error check in the compiler since I ran across it during testing. gotools/: * Makefile.am (go_cmd_go_files): Sort entries. Add generate.go. * Makefile.in: Rebuild. From-SVN: r219627
2014-07-12runtime: Merge master revision 19185.Ian Lance Taylor1-0/+62
This revision renames several files in the runtime directory from .c to .goc. From-SVN: r212472
2012-10-23libgo: Update to current sources.Ian Lance Taylor1-2/+2
From-SVN: r192704
2012-01-25libgo: Update to weekly.2012-01-15.Ian Lance Taylor1-0/+4
From-SVN: r183539
2011-11-28runtime: Multiplex goroutines onto OS threads.Ian Lance Taylor1-0/+10
From-SVN: r181772