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This started by moving procresize from C to Go so that we can pass the
right type to the memory allocator when allocating a p, which forced
the gomaxprocs variable to move from C to Go, and everything else
followed from that.
Reviewed-on: https://go-review.googlesource.com/34916
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@244236 138bc75d-0d04-0410-961f-82ee72b054a4
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Remove support for _cgo_allocate. It was removed from the gc
toolchain in Go 1.5, so it is unlikely that anybody is trying to use it.
Reviewed-on: https://go-review.googlesource.com/34557
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243805 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/31325
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241307 138bc75d-0d04-0410-961f-82ee72b054a4
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While we're at it, update the runtime/debug package, and start running
its testsuite by default. I'm not sure why runtime/debug was not
previously updated to 1.7. Doing that led me to fix some minor aspects
of runtime.Stack and the C function runtime/debug.readGCStats.
Reviewed-on: https://go-review.googlesource.com/31251
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241261 138bc75d-0d04-0410-961f-82ee72b054a4
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Fix handling of function values for -fgo-c-header to generate FuncVal*,
not simply FuncVal.
While we're here change runtime.nanotime to use clock_gettime with
CLOCK_MONOTONIC, rather than gettimeofday. This is what the gc library
does. It provides nanosecond precision and a monotonic clock.
Reviewed-on: https://go-review.googlesource.com/31232
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241197 138bc75d-0d04-0410-961f-82ee72b054a4
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Also create a gccgo version of some of the traceback code in
traceback_gccgo.go, replacing some code currently in C.
This required modifying the compiler so that when compiling the runtime
package a slice expression does not cause a local array variable to
escape to the heap.
Reviewed-on: https://go-review.googlesource.com/31230
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241189 138bc75d-0d04-0410-961f-82ee72b054a4
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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
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241163 138bc75d-0d04-0410-961f-82ee72b054a4
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This replaces mem.go and the C runtime_ReadMemStats function with the Go
1.7 mstats.go.
The GCStats code is commented out for now. The corresponding gccgo code
is in runtime/mgc0.c.
The variables memstats and worldsema are shared between the Go code and
the C code, but are not exported. To make this work, add temporary
accessor functions acquireWorldsema, releaseWorldsema, getMstats (the
latter known as mstats in the C code).
Check the preemptoff field of m when allocating and when considering
whether to start a GC. This works with the new stopTheWorld and
startTheWorld functions in Go, which are essentially the Go 1.7
versions.
Change the compiler to stack allocate closures when compiling the
runtime package. Within the runtime packages closures do not escape.
This is similar to what the gc compiler does, except that the gc
compiler, when compiling the runtime package, gives an error if escape
analysis shows that a closure does escape. I added this here because
the Go version of ReadMemStats calls systemstack with a closure, and
having that allocate memory was causing some tests that measure memory
allocations to fail.
Reviewed-on: https://go-review.googlesource.com/30972
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241124 138bc75d-0d04-0410-961f-82ee72b054a4
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Add compiler support for turning concatenating strings into a call to
a runtime function that takes the appropriate number of arguments.
Rename some local variables in mgc0.c to avoid macros that the new
rune.go causes to appear in runtime.inc.
Reviewed-on: https://go-review.googlesource.com/30827
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241074 138bc75d-0d04-0410-961f-82ee72b054a4
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This change removes the gccgo-specific hashmap code and replaces it with
the hashmap code from the Go 1.7 runtime. The Go 1.7 hashmap code is
more efficient, does a better job on details like when to update a key,
and provides some support against denial-of-service attacks.
The compiler is changed to call the new hashmap functions instead of the
old ones.
The compiler now tracks which types are reflexive and which require
updating when used as a map key, and records the information in map type
descriptors.
Map_index_expression is simplified. The special case for a map index on
the right hand side of a tuple expression has been unnecessary for some
time, and is removed. The support for specially marking a map index as
an lvalue is removed, in favor of lowering an assignment to a map index
into a function call. The long-obsolete support for a map index of a
pointer to a map is removed.
The __go_new_map_big function (known to the compiler as
Runtime::MAKEMAPBIG) is no longer needed, as the new runtime.makemap
function takes an int64 hint argument.
The old map descriptor type and supporting expression is removed.
The compiler was still supporting the long-obsolete syntax `m[k] = 0,
false` to delete a value from a map. That is now removed, requiring a
change to one of the gccgo-specific tests.
The builtin len function applied to a map or channel p is now compiled
as `p == nil ? 0 : *(*int)(p)`. The __go_chan_len function (known to
the compiler as Runtime::CHAN_LEN) is removed.
Support for a shared zero value for maps to large value types is
introduced, along the lines of the gc compiler. The zero value is
handled as a common variable.
The hash function is changed to take a seed argument, changing the
runtime hash functions and the compiler-generated hash functions.
Unlike the gc compiler, both the hash and equal functions continue to
take the type length.
Types that can not be compared now store nil for the hash and equal
functions, rather than pointing to functions that throw. Interface hash
and comparison functions now check explicitly for nil. This matches the
gc compiler and permits a simple implementation for ismapkey.
The compiler is changed to permit marking struct and array types as
incomparable, meaning that they have no hash or equal function. We use
this for thunk types, removing the existing special code to avoid
generating hash/equal functions for them.
The C runtime code adds memclr, memequal, and memmove functions.
The hashmap code uses go:linkname comments to make the functions
visible, as otherwise the compiler would discard them.
The hashmap code comments out the unused reference to the address of the
first parameter in the race code, as otherwise the compiler thinks that
the parameter escapes and copies it onto the heap. This is probably not
needed when we enable escape analysis.
Several runtime map tests that ere previously skipped for gccgo are now
run.
The Go runtime picks up type kind information and stubs. The type kind
information causes the generated runtime header file to define some
constants, including `empty`, and the C code is adjusted accordingly.
A Go-callable version of runtime.throw, that takes a Go string, is
added to be called from the hashmap code.
Reviewed-on: https://go-review.googlesource.com/29447
* go.go-torture/execute/map-1.go: Replace old map deletion syntax
with call to builtin delete function.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240334 138bc75d-0d04-0410-961f-82ee72b054a4
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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
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239872 138bc75d-0d04-0410-961f-82ee72b054a4
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It is not needed due to the removal of the ctx field.
Reviewed-on: https://go-review.googlesource.com/16525
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229616 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@212837 138bc75d-0d04-0410-961f-82ee72b054a4
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This revision renames several files in the runtime directory
from .c to .goc.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@212472 138bc75d-0d04-0410-961f-82ee72b054a4
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The next revision, 19185, renames several runtime files, and
will be handled in a separate change.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211328 138bc75d-0d04-0410-961f-82ee72b054a4
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This revision was committed January 7, 2014. The next
revision deleted runtime/mfinal.c. That will be done in a
subsequent merge.
This merge changes type descriptors to add a zero field,
pointing to a zero value for that type. This is implemented
as a common variable.
* go-gcc.cc (Gcc_backend::implicit_variable): Add is_common and
alignment parameters. Permit init parameter to be NULL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211249 138bc75d-0d04-0410-961f-82ee72b054a4
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Required for Solaris support.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204817 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204466 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@200974 138bc75d-0d04-0410-961f-82ee72b054a4
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This changes the representation of a Go value of function type
from being a pointer to function code (like a C function
pointer) to being a pointer to a struct. The first field of
the struct points to the function code. The remaining fields,
if any, are the addresses of variables referenced in enclosing
functions. For each call to a function, the address of the
function descriptor is passed as the last argument.
This lets us avoid generating trampolines, and removes the use
of writable/executable sections of the heap.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@200181 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195560 138bc75d-0d04-0410-961f-82ee72b054a4
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all: prepend #__USER_LABEL_PREFIX__ to mangled Go symbols
For old-fashioned Darwin.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195438 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194692 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193688 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192704 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187485 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184819 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184034 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183539 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181772 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181633 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@180552 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@178910 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171076 138bc75d-0d04-0410-961f-82ee72b054a4
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Update to current version of Go library.
Update testsuite for removed types.
* go-lang.c (go_langhook_init): Omit float_type_size when calling
go_create_gogo.
* go-c.h: Update declaration of go_create_gogo.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169098 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167973 138bc75d-0d04-0410-961f-82ee72b054a4
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gcc/:
* gcc.c (default_compilers): Add entry for ".go".
* common.opt: Add -static-libgo as a driver option.
* doc/install.texi (Configuration): Mention libgo as an option for
--enable-shared. Mention go as an option for --enable-languages.
* doc/invoke.texi (Overall Options): Mention .go as a file name
suffix. Mention go as a -x option.
* doc/frontends.texi (G++ and GCC): Mention Go as a supported
language.
* doc/sourcebuild.texi (Top Level): Mention libgo.
* doc/standards.texi (Standards): Add section on Go language.
Move references for other languages into their own section.
* doc/contrib.texi (Contributors): Mention that I contributed the
Go frontend.
gcc/testsuite/:
* lib/go.exp: New file.
* lib/go-dg.exp: New file.
* lib/go-torture.exp: New file.
* lib/target-supports.exp (check_compile): Match // Go.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167407 138bc75d-0d04-0410-961f-82ee72b054a4
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