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451 Commits

Author SHA1 Message Date
Ian Lance Taylor
76deefd0cd runtime: Mark runtime_goexit function as noinline. 
If the compiler inlines this function into kickoff, it may reuse
the TLS block address to load g. However, this is not necessarily
correct, as the call to g->entry in kickoff may cause the TLS
address to change. If the wrong value is loaded for g->status in
runtime_goexit, it may cause a runtime panic.

By marking the function as noinline we prevent the compiler from
reusing the TLS address.

From-SVN: r215484
 2014-09-22 21:14:43 +00:00
Ian Lance Taylor
f0c1b5671a runtime: Restore copyright notice accidentally removed from mgc0.c. 
From-SVN: r215423
 2014-09-20 20:42:59 +00:00
Ian Lance Taylor
a7188cc650 runtime: Use correct size for unsafe.Pointer GC instructions. 
From-SVN: r214965
 2014-09-05 14:43:24 +00:00
Chris Manghane
f1d2ac4f84 compiler: Add precise type information on the heap. 
* go-gcc.cc (Gcc_backend::implicit_variable): Remove init
	parameter.  Add is_hidden parameter.
	(Gcc_backend::implicit_variable_set_init): New method.
	(Gcc_backend::implicit_variable_reference): New method.

From-SVN: r214894
 2014-09-03 22:56:09 +00:00
Ian Lance Taylor
ab36d98dd2 runtime: Don't get confused if m changes during runtime_gc. 
From-SVN: r214048
 2014-08-15 22:16:55 +00:00
Ian Lance Taylor
798c183f7f compiler, runtime: Fix unexpected GC interfering with closure passing. 
The Go frontend passes closures through to functions using the
functions __go_set_closure and __go_get_closure.  The
expectation is that there are no function calls between
set_closure and get_closure.  However, it turns out that there
can be function calls if some of the function arguments
require type conversion to an interface type.  Converting to
an interface type can allocate memory, and that can in turn
trigger a garbage collection, and that can in turn call pool
cleanup functions that may call __go_set_closure.  So the
called function can see the wrong closure value, which is bad.

This patch fixes the problem in two different ways.  First, we
move all type conversions in function arguments into temporary
variables so that they can not appear before the call to
__go_set_closure.  (This required shifting the flatten phase
after the simplify_thunk phase, since the latter expects to
work with unconverted argument types.)  Second, we fix the
memory allocation function to preserve the closure value
across any possible garbage collection.

A test case is the libgo database/sql check run with the
environment variable GOGC set to 1.

From-SVN: r213932
 2014-08-13 22:31:44 +00:00
Ian Lance Taylor
d79fe5971a runtime: Add casts to mincore call to compile on Solaris. 
Based on patch from Rainer Orth.

From-SVN: r213599
 2014-08-04 17:54:09 +00:00
Ian Lance Taylor
dc14e88e07 re PR other/61895 (libbacktrace crashes with bus error with empty file argv[0]) 
PR other/61895

runtime: Ignore small argv[0] file for backtrace.

Reportedly in some cases Docker starts processes with argv[0]
pointing to an empty file.  That would cause libgo to pass
that empty file to libbacktrace, which would then fail to do
any backtraces.  Everything should work fine if libbacktrace
falls back to /proc/self/exe.

This patch to libgo works around the problem by ignoring
argv[0] if it is a small file, or if stat fails.  This is not
a perfect fix but it's an unusual problem.

From-SVN: r213513
 2014-08-02 00:54:15 +00:00
Ian Lance Taylor
1c2afaca89 runtime: also disable split stacks for runtime_snprintf function under Clang 
From-SVN: r212862
 2014-07-20 09:24:16 +00:00
Ian Lance Taylor
dffa732835 reflect, runtime: Use libffi closures to implement reflect.MakeFunc. 
Keep using the existing 386 and amd64 code on those archs,
since it is more efficient.

From-SVN: r212853
 2014-07-19 21:36:26 +00:00
Ian Lance Taylor
00d86ac99f libgo: Update to Go 1.3 release. 
From-SVN: r212837
 2014-07-19 08:53:52 +00:00
Ian Lance Taylor
2fa39ad859 runtime: Merge master revision 19185. 
This revision renames several files in the runtime directory
from .c to .goc.

From-SVN: r212472
 2014-07-12 00:01:09 +00:00
Ian Lance Taylor
c14e64d4ca runtime: Rename iface.goc to go-iface.goc. 
Rename in order to avoid confusion with the new
runtime/iface.goc file in the Go library master sources.

From-SVN: r212447
 2014-07-11 00:39:03 +00:00
Ian Lance Taylor
2802d48b30 runtime: Drop reflectFlags tests. 
The flags were used by the reflect package in the past, but
not for a couple of years now.

From-SVN: r212446
 2014-07-11 00:26:25 +00:00
Ian Lance Taylor
9490fda67a re PR go/61620 (FAIL: go.test/test/fixedbugs/bug242.go execution, -O2 -g) 
PR go/61620

runtime: Don't free tiny blocks in map deletion.

The memory allocator now has a special case for tiny blocks
(smaller than 16 bytes) and they can not be explicitly freed.

From-SVN: r212233
 2014-07-02 14:23:45 +00:00
Ian Lance Taylor
2abacbaec7 re PR go/52583 (Several new go testsuite failues on Solaris) 
PR go/52583
runtime: Stop backtrace at a few recognized functions.

On x86_64 Solaris the makecontext function does not properly
indicate that it is at the top of the stack.  Attempting to
unwind the stack past a call to makecontext tends to crash.
This patch changes libgo to look for certain functions that
are always found at the top of the stack, and to stop
unwinding when it reaches one of those functions.  There is
never anything interesting past these functions--that is,
there is never any code written by the user.

From-SVN: r211640
 2014-06-13 13:56:14 +00:00
Ian Lance Taylor
eec40eac83 re PR go/61498 (Many 64-bit Go tests SEGV in scanblock) 
PR go/61498
runtime: Always set gcnext_sp to pointer-aligned address.

The gcnext_sp field is only used on systems that do not use
split stacks.  It marks the bottom of the stack for the
garbage collector.  This change makes sure that the stack
bottom is always aligned to a pointer value.

Previously the garbage collector would align all the addresses
that it scanned, but it now expects them to be aligned before
scanning.

From-SVN: r211639
 2014-06-13 13:50:13 +00:00
Ian Lance Taylor
816002df70 runtime: Initialize variable to avoid compiler warning. 
From-SVN: r211394
 2014-06-10 00:36:38 +00:00
Ian Lance Taylor
6736ef96ea libgo: Merge to master revision 19184. 
The next revision, 19185, renames several runtime files, and
will be handled in a separate change.

From-SVN: r211328
 2014-06-06 22:37:27 +00:00
Ian Lance Taylor
bae90c989c libgo: Merge from revision 18783:00cce3a34d7e of master library. 
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.

From-SVN: r211249
 2014-06-04 23:15:33 +00:00
Ian Lance Taylor
7480a39b77 runtime: Use _mm_pause rather than __builtin_ia32_pause. 
Based on a patch from Peter Collingbourne.

From-SVN: r211081
 2014-05-30 13:53:58 +00:00
Ian Lance Taylor
d76a1885bd runtime: disable split stacks for runtime_printf function under Clang 
LLVM's code generator does not currently support split stacks for vararg
functions, so we disable split stacks for the only function that uses this
feature under Clang. This appears to be OK as long as:
- this function only calls non-inlined, internal-linkage (hence no dynamic
  loader) functions compiled with split stacks (i.e. go_vprintf), which can
  allocate more stack space as required;
- this function itself does not occupy more than BACKOFF bytes of stack space
  (see libgcc/config/i386/morestack.S).
These conditions are currently known to be satisfied by Clang on x86-32 and
x86-64. Note that signal handlers receive slightly less stack space than they
would normally do if they happen to be called while this function is being
run. If this turns out to be a problem we could consider increasing BACKOFF.

From-SVN: r211037
 2014-05-29 00:03:30 +00:00
Ian Lance Taylor
93c521ea9c runtime: fix misc gcc-isms and undefined behavior 
This includes the use of __complex and __builtin_ functions where
unprefixed entities would suffice, and the use of a union for
bit-casting between types.

From-SVN: r211036
 2014-05-28 23:10:47 +00:00
Ian Lance Taylor
25e4b0497b libgo/runtime: fix unused-result warning 
Result of runtime_write is ignored, causing
an unused-result result warning (error in my
case, with -Werror=unused-result).

From-SVN: r210987
 2014-05-27 22:01:21 +00:00
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
Ian Lance Taylor
73cc28d4e7 libgo: Remove Solaris 8 & 9 support. 
From Rainer Orth.

From-SVN: r209448
 2014-04-16 20:33:57 +00:00
Chris Manghane
7035307e8f Sync to current external repository. 
user:        Ian Lance Taylor <iant@golang.org>
date:        Thu Apr 10 09:25:24 2014 -0700
files:       go/expressions.cc
description:
compiler: add checks for constant overflow

Prevent extremely large constants from eating all of memory.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Apr 07 16:57:09 2014 -0700
files:       go/gogo-tree.cc go/gogo.cc go/gogo.h go/statements.cc
description:
compiler: Use backend interface for variable initialization.


user:        Chris Manghane <cmang@golang.org>
date:        Thu Apr 03 19:56:05 2014 -0700
files:       go/backend.h go/gogo-tree.cc go/gogo.cc go/gogo.h
description:
compiler: Use backend interface to build function code.


changeset:   1269:6e30875d539e
user:        Chris Manghane <cmang@golang.org>
date:        Wed Apr 02 13:16:00 2014 -0700
files:       go/backend.h go/gogo-tree.cc go/gogo.cc go/gogo.h
description:
compiler: Use backend interface for building function defer wrappers.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 31 12:42:49 2014 -0700
files:       go/expressions.cc go/gogo-tree.cc go/gogo.cc go/gogo.h
description:
compiler: Use backend interface for memory allocation.


user:        Chris Manghane <cmang@golang.org>
date:        Thu Mar 27 14:22:49 2014 -0700
files:       go/backend.h go/expressions.cc go/expressions.h
description:
compiler: Use backend interface for fixed array construction.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 17 21:25:04 2014 -0700
files:       go/expressions.cc
description:
compiler: Check for loops in self-referential array types. Fixes issue 7525.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 17 14:31:59 2014 -0700
files:       go/gogo.cc go/parse.cc
description:
compiler: Don't declare blank labels. Fixes issue 7539.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 17 13:12:32 2014 -0700
files:       go/backend.h go/expressions.cc go/expressions.h go/runtime.def
description:
compiler: Use backend interface for call expressions.


user:        Chris Manghane <cmang@golang.org>
date:        Wed Mar 12 13:34:27 2014 -0700
files:       go/expressions.cc go/expressions.h go/gogo-tree.cc go/statements.cc
description:
compiler: Use backend interface map construction.


user:        Chris Manghane <cmang@golang.org>
date:        Tue Mar 11 12:53:06 2014 -0700
files:       go/backend.h go/expressions.cc go/gogo-tree.cc go/gogo.h
description:
compiler: Use backend interface for string expressions.


user:        Chris Manghane <cmang@golang.org>
date:        Sat Mar 08 15:56:59 2014 -0800
files:       go/backend.h go/expressions.cc go/expressions.h
description:
compiler: Use backend interface for array and string indexing.


user:        Chris Manghane <cmang@golang.org>
date:        Fri Mar 07 16:02:18 2014 -0800
files:       go/expressions.cc
description:
compiler: Use backend interface for constant expressions.


user:        Chris Manghane <cmang@golang.org>
date:        Thu Mar 06 16:00:18 2014 -0800
files:       go/expressions.cc
description:
compiler: Use backend interface for struct construction.


user:        Chris Manghane <cmang@golang.org>
date:        Wed Mar 05 13:09:37 2014 -0800
files:       go/expressions.cc
description:
compiler: Use backend interface for type conversions.


user:        Chris Manghane <cmang@golang.org>
date:        Tue Mar 04 07:03:47 2014 -0800
files:       go/expressions.cc go/expressions.h go/gogo-tree.cc go/gogo.h go/runtime.def libgo/runtime/chan.c
description:
compiler: Use backend interface for channel receive.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 03 15:18:57 2014 -0800
files:       go/backend.h go/expressions.cc go/runtime.def
description:
compiler: Use backend interface for builtin calls.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Mar 03 07:44:35 2014 -0800
files:       go/expressions.cc go/expressions.h go/types.cc go/types.h
description:
compiler: Use backend interface for string info.


user:        Chris Manghane <cmang@golang.org>
date:        Fri Feb 28 10:45:55 2014 -0800
files:       go/expressions.cc go/expressions.h go/gogo-tree.cc go/statements.cc
description:
compiler: Use backend interface for map indexing.


user:        Chris Manghane <cmang@golang.org>
date:        Wed Feb 26 14:13:10 2014 -0800
files:       go/expressions.cc go/expressions.h
description:
compiler: Use backend interface for slice value expressions.


user:        Chris Manghane <cmang@golang.org>
date:        Wed Feb 26 13:12:19 2014 -0800
files:       go/backend.h go/expressions.cc go/expressions.h go/gogo-tree.cc go/runtime.def go/statements.cc
description:
compiler: Use backend interface for interface values.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Feb 24 12:30:13 2014 -0800
files:       go/expressions.cc go/expressions.h go/parse.cc go/statements.cc
description:
compiler: Change Heap_composite_expression to Heap_expression.


user:        Chris Manghane <cmang@golang.org>
date:        Thu Feb 20 19:47:06 2014 -0800
files:       go/expressions.cc go/expressions.h go/gogo-tree.cc go/gogo.cc go/gogo.h go/types.cc go/types.h
description:
compiler: Use backend interface for interface method table expressions.


user:        Chris Manghane <cmang@golang.org>
date:        Mon Feb 03 14:36:20 2014 -0800
files:       go/expressions.cc go/expressions.h
description:
compiler: Add compound expressions to the frontend.


	* go-gcc.cc: Include "convert.h".
	(Gcc_backend::string_constant_expression): New function.
	(Gcc_backend::real_part_expression): Likewise.
	(Gcc_backend::imag_part_expression): Likewise.
	(Gcc_backend::complex_expression): Likewise.
	(Gcc_backend::constructor_expression): Likewise.
	(Gcc_backend::array_constructor_expression): Likewise.
	(Gcc_backend::pointer_offset_expression): Likewise.
	(Gcc_backend::array_index_expression): Likewise.
	(Gcc_backend::call_expression): Likewise.
	(Gcc_backend::exception_handler_statement): Likewise.
	(Gcc_backend::function_defer_statement): Likewise.
	(Gcc_backend::function_set_parameters): Likewise.
	(Gcc_backend::function_set_body): Likewise.
	(Gcc_backend::convert_expression): Handle various type
	conversions.

From-SVN: r209393
 2014-04-14 22:43:47 +00:00
Ian Lance Taylor
9c48398f49 runtime: Fix GC bug caused by Entersyscall modifying reg. 
This patch fixes a rare but serious bug.  The Go garbage
collector only examines Go stacks.  When Go code calls a
function that is not written in Go, it first calls
syscall.Entersyscall.  Entersyscall records the position of
the Go stack pointer and saves a copy of all the registers.
If the garbage collector runs while the thread is executing
the non-Go code, the garbage collector fetches the stack
pointer and registers from the saved location.

Entersyscall saves the registers using the getcontext
function.  Unfortunately I didn't consider the possibility
that Entersyscall might itself change a register before
calling getcontext.  This only matters for callee-saved
registers, as caller-saved registers would be visible on the
saved stack.  And it only matters if Entersyscall is compiled
to save and modify a callee-saved register before it calls
getcontext.  And it only matters if a garbage collection
occurs while the non-Go code is executing.  And it only
matters if the only copy of a valid Go pointer happens to be
in the callee-saved register when Entersyscall is called.
When all those conditions are true, the Go pointer might get
collected incorrectly, leading to memory corruption.

This patch tries to avoid the problem by splitting
Entersyscall into two functions.  The first is a simple
function that just calls getcontext and then calls the rest of
Entersyscall.  This should fix the problem, provided the
simple Entersyscall function does not itself modify any
callee-saved registers before calling getcontext.  That seems
to be true on the systems I checked.  But since the argument
to getcontext is an offset from a TLS variable, it won't be
true on a system which needs to save callee-saved registers in
order to get the address of a TLS variable.  I don't know why
any system would work that way, but I don't know how to rule
it out.  I think that on any such system this will have to be
implemented in assembler.  I can't put the ucontext_t
structure on the stack, because this function can not split
stacks, and the ucontext_t structure is large enough that it
could cause a stack overflow.

From-SVN: r208390
 2014-03-07 05:04:37 +00:00
Ian Lance Taylor
a10d35a8ba libgo: Update to Go 1.2.1 release. 
From-SVN: r208286
 2014-03-03 20:14:52 +00:00
Ian Lance Taylor
91d6f071fb runtime: Use a better heap location on arm64 systems. 
Before this, the heap location used on a 64-bit system was not
available to user-space on arm64, so the "32-bit" strategy ended up
being used.  So use somewhere that is available, and for bonus points
is far away from where the kernel allocates address space by default.

From-SVN: r207977
 2014-02-21 03:24:03 +00:00
Ian Lance Taylor
6fbfce7841 re PR go/59866 (gccgo gc work buffer is misaligned) 
PR go/59866
runtime: Force work variable in mgc0 to be aligned on 8-byte boundary.

From-SVN: r206738
 2014-01-17 22:43:03 +00:00
Ian Lance Taylor
abd471378c runtime: fix 32-bit malloc for pointers >= 0x80000000 
The spans array is allocated in runtime_mallocinit.  On a
32-bit system the number of entries in the spans array is
MaxArena32 / PageSize, which (2U << 30) / (1 << 12) == (1 << 19).
So we are allocating an array that can hold 19 bits for an
index that can hold 20 bits.  According to the comment in the
function, this is intentional: we only allocate enough spans
(and bitmaps) for a 2G arena, because allocating more would
probably be wasteful.

But since the span index is simply the upper 20 bits of the
memory address, this scheme only works if memory addresses are
limited to the low 2G of memory.  That would be OK if we were
careful to enforce it, but we're not.  What we are careful to
enforce, in functions like runtime_MHeap_SysAlloc, is that we
always return addresses between the heap's arena_start and
arena_start + MaxArena32.

We generally get away with it because we start allocating just
after the program end, so we only run into trouble with
programs that allocate a lot of memory, enough to get past
address 0x80000000.

This changes the code that computes a span index to subtract
arena_start on 32-bit systems just as we currently do on
64-bit systems.

From-SVN: r206501
 2014-01-09 23:16:56 +00:00
Ian Lance Taylor
2da4a7611b re PR go/59433 (Many 64-bit Go tests SEGV on Solaris) 
PR go/59433
net: Don't use stack space for fd_sets when using select.

From-SVN: r206411
 2014-01-08 00:42:45 +00:00
Ian Lance Taylor
9596ecdf8c runtime: Remove unused runtime_cpuid variables. 
From-SVN: r206353
 2014-01-06 03:01:58 +00:00
Ian Lance Taylor
1635eab367 runtime: Fix defer of unlock thread at program startup. 
Don't free stack allocated defer block.  Also ensure we have a
Go context in a few more places before freeing the block.

From-SVN: r205940
 2013-12-12 20:13:58 +00:00
Ian Lance Taylor
547a416879 compiler, reflect, runtime: Implement method values in reflect. 
From-SVN: r205913
 2013-12-12 01:08:52 +00:00
Ian Lance Taylor
b1d137cf58 reflect, runtime: Let reflect.MakeFunc functions call recover. 
From-SVN: r205908
 2013-12-11 23:43:16 +00:00
Ian Lance Taylor
dccd3a9b62 re PR go/59408 (Many Go tests FAIL with notesleep not on g0) 
PR go/59408
runtime: Don't require g != m->g0 in sema notesleep.

From-SVN: r205756
 2013-12-06 18:26:27 +00:00
Ian Lance Taylor
50312b2ff0 runtime: Use pthread_sigmask instead of sigprocmask. 
From-SVN: r205652
 2013-12-04 01:35:53 +00:00
Ian Lance Taylor
e8d8443d22 runtime: Fix prototype and one use of runtime_traceback. 
From Richard Biener.

From-SVN: r205634
 2013-12-03 14:51:07 +00:00
Ian Lance Taylor
2583109c81 libgo: Avoid some cases of getting callers recursively. 
Avoids hanging inside older versions of glibc that do not
support recurive calls to dl_iterate_phdr.

From-SVN: r205561
 2013-12-01 01:40:16 +00:00
Ian Lance Taylor
763d87526f runtime: Fix handling of surrogate pairs in string([]rune). 
From-SVN: r205422
 2013-11-26 23:27:29 +00:00
Ian Lance Taylor
6b05faddf0 syscall: Only call varargs libc functions from C code. 
From-SVN: r205321
 2013-11-24 02:38:28 +00:00
Ian Lance Taylor
92495ff691 runtime: Update for change to libbacktrace library. 
From-SVN: r205031
 2013-11-19 15:02:27 +00:00
Ian Lance Taylor
41674b9fe4 reflect: Handle calls to functions that take or return empty structs 
Fixes issue 6761

This simple change seems to work fine, slightly to my surprise.

This includes the tests I submitted to the main Go repository at
https://codereview.appspot.com/26570046

From-SVN: r205001
 2013-11-19 02:30:03 +00:00
Ian Lance Taylor
7c0f17db44 runtime: Use runtime_m to get m value after call to runtime_mcall. 
From-SVN: r204853
 2013-11-15 17:20:25 +00:00
Ian Lance Taylor
37512c0399 runtime: Don't use filename without '/' for backtrace library. 
Fixes http://golang.org/issue/6715.

From-SVN: r204828
 2013-11-14 22:31:29 +00:00
Ian Lance Taylor
03a231f752 runtime: Add netpoll code that uses select. 
Required for Solaris support.

From-SVN: r204817
 2013-11-14 20:15:04 +00:00
Ian Lance Taylor
7d608db296 runtime: Fix GC flag in when allocating memory from cgo. 
From-SVN: r204815
 2013-11-14 20:04:32 +00:00
Ian Lance Taylor
86dedeba36 runtime: Correct flag (FlagNoGC => FlagNoInvokeGC). 
From-SVN: r204617
 2013-11-09 16:23:00 +00:00
Ian Lance Taylor
f671b58945 runtime: Fixes for Alpha. 
From-SVN: r204551
 2013-11-07 23:38:47 +00:00
Ian Lance Taylor
f038dae646 libgo: Update to October 24 version of master library. 
From-SVN: r204466
 2013-11-06 19:49:01 +00:00
Ian Lance Taylor
134e622524 runtime: Fix typo in dup3 fallback implementation. 
From Uros Bizjak.

From-SVN: r203820
 2013-10-18 13:26:40 +00:00
Ian Lance Taylor
d5b18b0b13 syscall: Add Dup3, {Get,List,Remove,Set}xattr, {Get,Set}priority. 
From-SVN: r203788
 2013-10-17 18:41:12 +00:00
Ian Lance Taylor
c187e58fa2 runtime: Fix build on systems without split stack. 
From Uros Bizjak.

From-SVN: r203703
 2013-10-16 13:37:35 +00:00
Ian Lance Taylor
8088e1beb2 runtime: Don't clobber saved context when catching signal. 
From-SVN: r203577
 2013-10-14 21:02:52 +00:00
Ian Lance Taylor
301616f7ff runtime: Report len out of range for large len when making slice. 
From-SVN: r203401
 2013-10-11 00:46:57 +00:00
Ian Lance Taylor
215552adac compiler, runtime: Fix complex division of NaN / 0. 
From-SVN: r203331
 2013-10-09 22:31:15 +00:00
Ian Lance Taylor
7af190f113 runtime: Do not report thunks and recover functions in backtrace. 
From-SVN: r203294
 2013-10-09 00:02:14 +00:00
Ian Lance Taylor
84c67c3bae runtime: Fix append of slice with elements of zero size. 
From-SVN: r203140
 2013-10-02 23:49:39 +00:00
Ian Lance Taylor
05a7d56678 compiler, runtime: Use runtime functions to pass closure value. 
This changes the compiler and runtime to not pass a closure
value as the last argument, but to instead pass it via
__go_set_closure and retrieve it via __go_get_closure.  This
eliminates the need for function descriptor wrapper functions.
It will make it possible to retrieve the closure value in a
reflect.MakeFunc function.

From-SVN: r202233
 2013-09-03 21:52:37 +00:00
Ian Lance Taylor
b0c5dc1655 runtime: Handle allocating memory in cgo/SWIG function. 
A function that returns an interface type and returns a value
that requires memory allocation will try to allocate while
appearing to be in a syscall.  This patch lets that work.

From-SVN: r201226
 2013-07-24 22:30:25 +00:00
Ian Lance Taylor
08d22f9b41 runtime: Check _end rather than end to find end of program. 
This fixes a problem on Solaris, where end is not defined in
the main program but comes from some shared library.  This
only matters for 32-bit targets.

From-SVN: r201220
 2013-07-24 17:37:07 +00:00
Ian Lance Taylor
c0f0119244 runtime: Move new 1.1.1 functions from thread-linux.c to runtime.c. 
This way they are compiled on non-GNU/Linux systems.

From-SVN: r201209
 2013-07-24 13:18:45 +00:00
Ian Lance Taylor
6212cdcdf7 runtime: Declare epoll_create1 if necessary. 
From-SVN: r201181
 2013-07-23 20:32:26 +00:00
Ian Lance Taylor
7acd2b86bf runtime: Support cgo callbacks from threads started by C. 
This adjusts the extram support to work with gccgo.  There are
some corresponding changes to cgo in
https://codereview.appspot.com/11406047/ .

From-SVN: r201179
 2013-07-23 20:26:09 +00:00
Ian Lance Taylor
5f9ae7f2d6 runtime: Ignore SIGPROF if not on a Go thread. 
From-SVN: r201154
 2013-07-23 04:42:09 +00:00
Ian Lance Taylor
081e7aadae runtime: Fix build on non-split-stack systems. 
From-SVN: r200983
 2013-07-16 15:44:54 +00:00
Ian Lance Taylor
be47d6ecef libgo: Update to Go 1.1.1. 
From-SVN: r200974
 2013-07-16 06:54:42 +00:00
Ian Lance Taylor
fdbc38a6e8 compiler, runtime: Use function descriptors. 
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.

From-SVN: r200181
 2013-06-18 23:49:49 +00:00
Ian Lance Taylor
73e0b984b3 runtime, testing/quick: libffi doesn't handle complex on Alpha. 
From Uros Bizjak.

From-SVN: r196389
 2013-03-01 19:26:43 +00:00
Ian Lance Taylor
0a2f103a45 runtime: Don't block SIGTRAP while creating a new thread. 
Thanks to Uros Bizjak.

From-SVN: r196362
 2013-02-28 21:56:14 +00:00
Ian Lance Taylor
aa777e7a23 re PR go/56320 (Several libgo tests FAIL on 64-bit Solaris/x86) 
PR go/56320
runtime: Support Solaris AMD64 in lfstack.
The address space layout is similar on SPARC64 and AMD64 when
running Solaris.

From-SVN: r196179
 2013-02-20 19:45:10 +00:00
Ian Lance Taylor
3ab98a471c runtime: Do not reserve huge amount of swap on 32 bit architectures. 
The mmap() call which reserves the arena should have MAP_NORESERVE
flag as in typical cases this memory will never be (fully) needed.
This matters in environments which do not do Linux style memory
overcommit, such as OpenIndiana/OpenSolaris/Solaris.

The MAP_NORESERVE flag does not exist on all operating systems
(for example FreeBSD). Therefore we define it to zero value in
case it does not exist.

Fixes issue 21.

From-SVN: r196088
 2013-02-15 18:55:09 +00:00
Ian Lance Taylor
48227088fd runtime: Change main in goc2c to return int. 
From Uros Bizjak.

From-SVN: r195868
 2013-02-07 22:24:34 +00:00
Ian Lance Taylor
5c9768b360 re PR go/56172 (net FAILs on Solaris) 
PR go/56172
runtime: Fix argument passed to forcegchelper.

From-SVN: r195774
 2013-02-05 23:59:24 +00:00
Ian Lance Taylor
7ebe663e98 runtime: Correct handling of runtime.Callers skip parameter. 
From-SVN: r195685
 2013-02-02 15:11:48 +00:00
Ian Lance Taylor
a1948282e8 runtime: Correct test for morestack.S. 
From-SVN: r195640
 2013-02-01 05:49:14 +00:00
Ian Lance Taylor
cfbafb9a7e runtime: Recognize morestack.S if there is no function name. 
From-SVN: r195634
 2013-01-31 23:12:42 +00:00
Ian Lance Taylor
7c81527e48 runtime: Remove confusion about split stack functions in backtrace. 
From-SVN: r195627
 2013-01-31 19:44:24 +00:00
Ian Lance Taylor
e259a3f2ca runtime: Block signals when creating a new thread. 
From-SVN: r195619
 2013-01-31 17:30:28 +00:00
Ian Lance Taylor
422e2fc062 runtime: Don't allocate when doing a backtrace. 
From-SVN: r195615
 2013-01-31 16:41:15 +00:00
Ian Lance Taylor
27741f93ef runtime: In backtraces, get inline functions, skip split-stack fns. 
From-SVN: r195591
 2013-01-30 22:24:40 +00:00
Ian Lance Taylor
777133fefb libgo: Update Go library to master revision 15502/229081515358. 
From-SVN: r195569
 2013-01-30 01:37:13 +00:00
Ian Lance Taylor
d6f2922e91 libgo: Update Go library to master revision 15489/921e53d4863c. 
From-SVN: r195560
 2013-01-29 20:52:43 +00:00
Ian Lance Taylor
656e11a924 runtime: SPARCv9 fixes for lfstack. 
From Rainer Orth.

From-SVN: r195534
 2013-01-29 13:58:18 +00:00
Ian Lance Taylor
acc6151f4a re PR other/56076 (Several 64-bit libgo tests FAIL in read_line_header) 
PR other/56076
runtime: Support sparc64 in lfstack.

From-SVN: r195479
 2013-01-25 23:43:23 +00:00
Ian Lance Taylor
f6b1e65ec3 re PR go/46986 (Go is not supported on Darwin) 
PR go/46986
all: prepend #__USER_LABEL_PREFIX__ to mangled Go symbols
For old-fashioned Darwin.

From-SVN: r195438
 2013-01-24 19:44:23 +00:00
Ian Lance Taylor
409a5e7eb4 libgo: Update to revision 15193:6fdc1974457c of master library. 
From-SVN: r194692
 2012-12-22 01:15:33 +00:00
Ian Lance Taylor
35f33e3802 runtime: Delete from a nil map is now a no-op. 
From-SVN: r194462
 2012-12-12 23:29:10 +00:00
Ian Lance Taylor
a42a906c42 libgo: Update to current master library sources. 
From-SVN: r194460
 2012-12-12 23:13:29 +00:00
Ian Lance Taylor
4731f878b7 runtime: Fix build failures with -D_FORTIFY_SOURCE=2. 
From-SVN: r194116
 2012-12-04 06:18:07 +00:00
Ian Lance Taylor
744c3195ef compiler, runtime: Track fields with tag go:"track". 
* go-gcc.cc: Include "output.h".
	(global_variable): Add is_unique_section parameter.
	(global_variable_set_init): Adjust unique section if necessary.
	* Make-lang.in (go/go-gcc.o): Add dependency on output.h.

From-SVN: r193945
 2012-11-29 18:11:17 +00:00
Ian Lance Taylor
fabcaa8df3 libgo: Update to current version of master library. 
From-SVN: r193688
 2012-11-21 07:03:38 +00:00
Ian Lance Taylor
95d89457e2 runtime: Fix use of __atomic_compare_exchange_n: not weak, consistent. 
From-SVN: r193581
 2012-11-17 00:52:22 +00:00
Ian Lance Taylor
8273ed8077 compiler, runtime: Size of int is now 64 bits on x86_64. 
From-SVN: r193255
 2012-11-06 18:46:38 +00:00
Ian Lance Taylor
fb3f38da2a compiler, libgo: Fixes to prepare for 64-bit int. 
From-SVN: r193254
 2012-11-06 18:28:21 +00:00
Ian Lance Taylor
855a44ee8f compiler, runtime: Memcmp routine returns intgo. 
From-SVN: r193253
 2012-11-06 18:12:45 +00:00
Ian Lance Taylor
0be1a5898f runtime: provide initcontext and fixcontext for NetBSD 
From-SVN: r193173
 2012-11-05 17:41:07 +00:00
Ian Lance Taylor
556ea3915a runtime: Fix reflect.Call support for 64-bit ints. 
From-SVN: r193110
 2012-11-02 23:17:05 +00:00
Ian Lance Taylor
776f27a67f compiler, runtime: More steps toward separating int and intgo. 
From-SVN: r193059
 2012-11-01 03:02:13 +00:00
Ian Lance Taylor
e212c7f56c runtime/goc2c: Drop gc support, change int to intgo. 
From-SVN: r193046
 2012-10-31 20:49:53 +00:00
Ian Lance Taylor
4ccad563d2 libgo: Update to current sources. 
From-SVN: r192704
 2012-10-23 04:31:11 +00:00
Ian Lance Taylor
fb521d54f1 runtime: Fix __go_symbol_value val argument to backtrace_syminfo. 
From-SVN: r192194
 2012-10-08 04:29:47 +00:00
Ian Lance Taylor
686750d25d runtime: Use argv[0] to get executable name for backtrace. 
From-SVN: r192123
 2012-10-05 13:44:40 +00:00
Ian Lance Taylor
bd2e46c825 libgo: Update to Go 1.0.3. 
From-SVN: r192025
 2012-10-03 05:27:36 +00:00
Ian Lance Taylor
ddd06f5372 runtime: Better detection of memory allocation request overflow. 
From-SVN: r191841
 2012-09-28 21:25:20 +00:00
Ian Lance Taylor
92aecb446a runtime: runtime.Caller should succeed even without debug info. 
From-SVN: r191833
 2012-09-28 17:42:53 +00:00
Ian Lance Taylor
0e56e59065 libgo: Use libbacktrace rather than debug/elf registration. 
From-SVN: r191831
 2012-09-28 14:48:30 +00:00
Ian Lance Taylor
a2383b317b runtime: Reject surrogate pairs in range over string. 
From-SVN: r191638
 2012-09-22 07:18:45 +00:00
Ian Lance Taylor
1e39ea0812 compiler, runtime: Reject surrogate pair converting int to string. 
From-SVN: r191636
 2012-09-22 06:51:59 +00:00
Ian Lance Taylor
2afc1e0b30 runtime: Return random number of hash of NaN. 
From-SVN: r191632
 2012-09-22 06:06:31 +00:00
Ian Lance Taylor
938ff79ae7 runtime: use sched_getaffinity for runtime.NumCPU() on Linux 
Fixes Go issue 3921 for gccgo.

From Shenghou Ma.

From-SVN: r190282
 2012-08-10 06:08:11 +00:00
Ian Lance Taylor
233115eaf5 runtime: support NumCPU() on more platforms Added support for Solaris, Irix, *BSD (including Darwin). 
runtime: support NumCPU() on more platforms
        Added support for Solaris, Irix, *BSD (including Darwin).
        Still missing support for RTEMS.
        Fixes issue 3698 in Go issue tracker.

From-SVN: r190197
 2012-08-07 04:42:49 +00:00
Ian Lance Taylor
1fae9801e4 runtime, runtime/pprof: Fix runtime/pprof test to pass, enable it. 
From-SVN: r189878
 2012-07-26 01:57:04 +00:00
Ian Lance Taylor
0abcd2ef51 runtime: correct a logic error in hashmap growth. 
The bug prevented maps to grow properly to sizes
larger than 1.3 million.

From Rémy Oudompheng.

From-SVN: r189766
 2012-07-23 03:57:28 +00:00
Ian Lance Taylor
08a680a887 libgo: Update to Go 1.0.2 release. 
From-SVN: r188943
 2012-06-25 16:20:03 +00:00
Ian Lance Taylor
f3dbbfcedf runtime: Fix printing of names in stack dumps. 
From-SVN: r188297
 2012-06-07 06:34:52 +00:00
Ian Lance Taylor
0d7afaa749 runtime: Use dl_iterate_phdr to get TLS size. 
From-SVN: r188290
 2012-06-07 00:55:20 +00:00
Ian Lance Taylor
9bb40b3b23 runtime: Comment out code adding TLS size to stack size. 
From-SVN: r188238
 2012-06-05 13:12:13 +00:00
Ian Lance Taylor
44072af5b0 runtime: Fix call to _dl_get_tls_static_info for i386. 
From-SVN: r188230
 2012-06-05 06:19:19 +00:00
Ian Lance Taylor
7bea4023f2 runtime: Better SWIG interface for allocating Go memory from C/C++. 
From-SVN: r188164
 2012-06-04 05:34:59 +00:00
Ian Lance Taylor
d4dc840de4 runtime: More efficient implementation of trampolines. 
From-SVN: r187899
 2012-05-25 21:51:39 +00:00
Ian Lance Taylor
e5159e6070 runtime: Fix cast error in print.c on 32-bit systems. 
From-SVN: r187889
 2012-05-25 18:22:01 +00:00
Ian Lance Taylor
bac564c53e runtime: Make runtime.Stack actually work. 
From-SVN: r187854
 2012-05-24 21:07:18 +00:00
Ian Lance Taylor
9e65cec2fd runtime: Correct definition of __go_file_line to match declaration. 
From Rainer Orth.

From-SVN: r187851
 2012-05-24 20:47:09 +00:00
Ian Lance Taylor
41f9e67527 runtime: Copy runtime_printf from other Go library. 
From-SVN: r187850
 2012-05-24 20:45:37 +00:00
Ian Lance Taylor
86ba147f54 runtime: Copy runtime_printf from other Go library. 
From-SVN: r187848
 2012-05-24 20:44:34 +00:00
Ian Lance Taylor
4579805199 runtime: Tweak runtime.Callers for Go 1 compatibility. 
From-SVN: r187781
 2012-05-22 21:52:56 +00:00
Ian Lance Taylor
ef1f343258 runtime: Use getcontext, not setjmp, to save regs for GC. 
From-SVN: r187777
 2012-05-22 16:57:23 +00:00
Ian Lance Taylor
d7b8f2b781 runtime: Print stack trace on panic or signal. 
From-SVN: r187623
 2012-05-17 05:30:25 +00:00
Ian Lance Taylor
fe725c000b runtime: Make all variables used across getcontext volatile. 
From-SVN: r187549
 2012-05-15 18:56:48 +00:00
Ian Lance Taylor
f3ab5720f7 libgo: Use -fgo-pkgpath. 
From-SVN: r187485
 2012-05-14 22:08:42 +00:00
Ian Lance Taylor
324612b351 re PR go/52358 (math FAILs on Solaris 8 and 9) 
PR go/52358
configure, runtime: Provide i386 long double math functions if needed.

From-SVN: r186915
 2012-04-27 16:38:11 +00:00
Ian Lance Taylor
f07bb470ae runtime: Correct syscall.Setenv for systems that don't have setenv. 
From-SVN: r186911
 2012-04-27 16:28:21 +00:00
Ian Lance Taylor
63d1e46df0 compiler, runtime: Add explicit checks for zero and overflow division. 
* lang.opt: Add -fgo-check-divide-zero and
	-fgo-check-divide-overflow.
	* gccgo.texi (Invoking gccgo): Document new options.

From-SVN: r186637
 2012-04-20 19:21:39 +00:00
Ian Lance Taylor
8a72417502 runtime: Ignore stack sizes when deciding when to GC. 
Also allocate heap bitmaps bit in page size units and clear
context when putting G structures on free list.

From-SVN: r186607
 2012-04-20 04:58:26 +00:00
Ian Lance Taylor
a1552fc3ec libgo: Update to weekly.2012-03-27 aka go1 release. 
From-SVN: r186029
 2012-03-30 22:36:44 +00:00
Ian Lance Taylor
9a18821cfc libgo: Update to weekly.2012-03-22. 
From-SVN: r186026
 2012-03-30 22:09:55 +00:00
Ian Lance Taylor
456fba2651 libgo: Update to weekly.2012-03-13. 
From-SVN: r186023
 2012-03-30 21:27:11 +00:00
Ian Lance Taylor
24aea58753 libgo: Export {enter,exit}syscall and use it for getaddrinfo. 
From-SVN: r185363
 2012-03-13 23:01:30 +00:00
Ian Lance Taylor
0effc3f961 libgo: Implement and use runtime.Caller, runtime.Func.FileLine. 
From-SVN: r185025
 2012-03-07 01:16:20 +00:00
Ian Lance Taylor
593f74bbab libgo: Update to weekly.2012-03-04 release. 
From-SVN: r185010
 2012-03-06 17:57:23 +00:00
Ian Lance Taylor
c3f87aa909 runtime: Implement runtime.Callers. 
From-SVN: r184944
 2012-03-05 17:07:37 +00:00
Ian Lance Taylor
5e60b5708e re PR go/52342 (64-bit go.test/test/chan/doubleselect.go times out on Solaris/SPARC) 
PR go/52342
runtime: Better big-endian identity hash function.

From-SVN: r184914
 2012-03-05 06:39:08 +00:00
Ian Lance Taylor
cd33b08fbd runtime: Add type casts to fix Solaris build. 
From Rainer Orth.

From-SVN: r184823
 2012-03-02 20:48:21 +00:00
Ian Lance Taylor
501699af16 libgo: Update to weekly.2012-02-22 release. 
From-SVN: r184819
 2012-03-02 20:01:37 +00:00
Ian Lance Taylor
cbb6491d76 libgo: Update to weekly.2012-02-14 release. 
From-SVN: r184798
 2012-03-02 16:38:43 +00:00
Ian Lance Taylor
b65734ac6c syscall: Fill out GNU/Linux support. 
From-SVN: r184669
 2012-02-29 20:02:31 +00:00
Ian Lance Taylor
5c46e29317 runtime: Call exit rather than _exit. 
This fixes --coverage and perhaps other things as well.

From-SVN: r184642
 2012-02-28 20:57:15 +00:00
Ian Lance Taylor
2ef7cdff1e runtime: Fix typo in go-nosys.c. 
From Rainer Orth.

From-SVN: r184569
 2012-02-25 02:11:29 +00:00
Ian Lance Taylor
5d46bf0538 libgo: Add mount flags, fallocate, statfs. 
From-SVN: r184365
 2012-02-18 01:22:02 +00:00
Ian Lance Taylor
ca59d219fe runtime: Support broken makecontext on Solaris 8/9. 
From Rainer Orth.

From-SVN: r184289
 2012-02-15 22:29:35 +00:00
Ian Lance Taylor
35ea42ebad re PR go/48407 (libgo/configure --without-libffi doesn't work) 
PR go/48407
runtime: Permit building libgo without libffi.

From-SVN: r184234
 2012-02-14 20:47:35 +00:00
Ian Lance Taylor
95787705db re PR go/48501 (64bit-out.go, select5-out.go, tmp.go compilation times out) 
PR go/48501
runtime: Fix identity hash function for big-endian systems.

From-SVN: r184218
 2012-02-14 18:02:09 +00:00
Ian Lance Taylor
4ea063cacb re PR go/50654 (Many Go tests fail on emutls targets) 
PR go/50654
runtime: Reload m and g if necessary after getcontext returns.

From-SVN: r184188
 2012-02-14 00:38:07 +00:00
Ian Lance Taylor
12e3c39614 re PR go/52084 (go tests fail to link on powerpc-linux-gnu (undefined reference to __sync_add_and_fetch_8)) 
PR go/52084
libgo: Provide more __sync functions if required.

From-SVN: r184138
 2012-02-12 06:23:08 +00:00
Ian Lance Taylor
83a5c149a6 runtime: Handle FFI promoting result types. 
From-SVN: r184123
 2012-02-11 07:08:13 +00:00
Ian Lance Taylor
96431d5772 runtime: Tweak __go_can_recover for SPARC. 
From-SVN: r184117
 2012-02-11 00:15:54 +00:00
Ian Lance Taylor
41da64ed3a runtime: Fix chan code for big-endian strict-alignment systems 
From-SVN: r184115
 2012-02-11 00:03:10 +00:00
Ian Lance Taylor
d3229873ae runtime: For g0 set stack_size to 0 when not -fsplit-stack. 
From-SVN: r184099
 2012-02-10 15:55:37 +00:00
Ian Lance Taylor
c91e24907b runtime: Save all registers on stack for GC scan. 
From-SVN: r184098
 2012-02-10 15:52:37 +00:00
Ian Lance Taylor
16d62226d1 runtime: Use __builtin_{inf,nan} rather than INFINITY/NAN. 
From-SVN: r184080
 2012-02-10 00:40:27 +00:00
Ian Lance Taylor
94252f4bcc libgo: Update to weekly.2012-02-07. 
From-SVN: r184034
 2012-02-09 08:19:58 +00:00
Ian Lance Taylor
d2b480bc96 runtime: Add matherr function when appropriate. 
From-SVN: r184024
 2012-02-08 22:35:30 +00:00
Ian Lance Taylor
047cff816d compiler, runtime: Check make int64 args for overflow. 
From-SVN: r183994
 2012-02-08 06:18:41 +00:00
Ian Lance Taylor
7f57843fbe runtime: System-specific hack fix for x86_64 Solaris 10. 
Fixes problem in which setcontext changes all thread-specific
information.

From-SVN: r183993
 2012-02-08 05:30:12 +00:00
Ian Lance Taylor
1c69e5e28a runtime: Correct ENOSYS functions. 
From-SVN: r183852
 2012-02-02 22:58:54 +00:00
Ian Lance Taylor
eb6a1fe097 libgo: Fix merge errors shown on Solaris. 
From Rainer Orth.

From-SVN: r183651
 2012-01-27 22:34:53 +00:00
Ian Lance Taylor
e02ed81e1b libgo: Build stubs for some syscall functions not on older systems. 
From-SVN: r183577
 2012-01-26 20:24:01 +00:00
Ian Lance Taylor
df1304ee03 libgo: Update to weekly.2012-01-15. 
From-SVN: r183539
 2012-01-25 20:56:26 +00:00
Ian Lance Taylor
98dfd7ff16 runtime: Make builtin print exactly match gc builtin print. 
From-SVN: r183378
 2012-01-21 21:58:09 +00:00
Ian Lance Taylor
1efa38d1a7 libgo: Solaris and Irix compatibility patches. 
From Rainer Orth.

From-SVN: r183246
 2012-01-17 14:18:39 +00:00
Ian Lance Taylor
df4aa89a5e libgo: Update to weekly.2011-12-22. 
From-SVN: r183150
 2012-01-13 05:11:45 +00:00
Ian Lance Taylor
9a0e3259f4 libgo: Update to weekly.2011-12-14. 
From-SVN: r183118
 2012-01-12 01:31:45 +00:00
Ian Lance Taylor
f9f9698753 compiler, runtime: Implement struct and array comparisons. 
From-SVN: r182971
 2012-01-06 21:47:49 +00:00
Ian Lance Taylor
a05fe19071 runtime: Fix missing USING_SPLIT_STACK ifdef. 
From Uros Bizjak.

From-SVN: r182633
 2011-12-22 19:07:12 +00:00
Ian Lance Taylor
a6dcb7d465 runtime: Catch signals on altstack, disable splitstack signal blocking. 
From-SVN: r182607
 2011-12-21 22:24:47 +00:00
Ian Lance Taylor
d8fa39bfc8 libgo/runtime: Don't define _GNU_SOURCE in source code. 
From-SVN: r182550
 2011-12-20 18:49:40 +00:00
Ian Lance Taylor
03eee7f75c runtime: RTEMS build fixes. 
From Joel Sherrill.

From-SVN: r182309
 2011-12-13 21:59:26 +00:00
Ian Lance Taylor
7b1c3dd9e6 libgo: Update to weekly.2011-12-02. 
From-SVN: r182295
 2011-12-13 19:16:27 +00:00
Ian Lance Taylor
ab61e9c4da libgo: Update to weekly.2011-11-18. 
From-SVN: r182266
 2011-12-12 23:40:51 +00:00
Ian Lance Taylor
ec2c72551e runtime: make print() built-in write to stderr. 
Fixes issue 2294.

From-SVN: r182167
 2011-12-09 16:42:40 +00:00
Ian Lance Taylor
c19bd76920 libgo: Add back tests of syscall time. 
From-SVN: r182075
 2011-12-07 01:55:49 +00:00
Ian Lance Taylor
9c63abc9a1 libgo: Update to weekly 2011-11-09. 
From-SVN: r182073
 2011-12-07 01:11:29 +00:00
Ian Lance Taylor
506cf9aaea libgo: Update to weekly.2011-11-01. 
From-SVN: r181938
 2011-12-02 19:34:41 +00:00
Ian Lance Taylor
f4c016e605 runtime: Remove temporary runtime_cond_wait function. 
From-SVN: r181897
 2011-12-01 23:50:48 +00:00
Ian Lance Taylor
17dcf07581 runtime: Rename sigignore to sig_ignore for Solaris. 
From-SVN: r181885
 2011-12-01 17:08:12 +00:00
Ian Lance Taylor
3e68d6d75a compiler/runtime: Copy channel implementation from master library. 
From-SVN: r181874
 2011-12-01 08:06:16 +00:00
Ian Lance Taylor
b87974949f runtime: Copy runtime_panicstring from master library. 
From-SVN: r181830
 2011-11-30 00:21:52 +00:00
Ian Lance Taylor
08ee945e0b runtime: If no sem_timedwait, use pthread_cond_timedwait. 
From-SVN: r181821
 2011-11-29 21:58:48 +00:00
Ian Lance Taylor
421ecf992e runtime: If O_CLOEXEC is not defined, define it as 0. 
From-SVN: r181814
 2011-11-29 19:26:00 +00:00
Ian Lance Taylor
737087cbc8 runtime: Multiplex goroutines onto OS threads. 
From-SVN: r181772
 2011-11-28 05:45:49 +00:00
Ian Lance Taylor
48e7d50e9f runtime: New lock/note implementation. 
From-SVN: r181633
 2011-11-22 20:24:44 +00:00
Ian Lance Taylor
5c262e9444 runtime: Use some of 6g runtime.c for easier merging. 
From-SVN: r181368
 2011-11-14 22:26:45 +00:00
Ian Lance Taylor
34277c5228 Introduce G structure and thread-local global g. 
From-SVN: r181301
 2011-11-11 21:02:48 +00:00
Ian Lance Taylor
787f74b487 runtime: Don't ask mmap for wrapping memory. 
From-SVN: r180732
 2011-11-01 05:20:40 +00:00
Ian Lance Taylor
3d43396098 runtime: Correct test of mmap return value. 
From-SVN: r180731
 2011-11-01 04:55:15 +00:00
Ian Lance Taylor
f0080f6cf9 syscall: Use sched_yield rather than pthread_yield. 
From-SVN: r180716
 2011-10-31 22:09:21 +00:00
Ian Lance Taylor
d8f412571f Update Go library to last weekly. 
From-SVN: r180552
 2011-10-26 23:57:58 +00:00
Ian Lance Taylor
f29ce5f5f1 Implement predeclared delete function. 
From-SVN: r180438
 2011-10-25 17:21:07 +00:00
Ian Lance Taylor
09367c0d60 Don't permit close of receive-only channel. 
Better panic on attempt to close nil channel.

From-SVN: r180437
 2011-10-25 16:35:24 +00:00
Ian Lance Taylor
de27caacfb Implement new syscall package. 
Calls to library functions now use entersyscall and
exitsyscall as appropriate.  This is a first step toward
multiplexing goroutines onto threads.

From-SVN: r180345
 2011-10-23 19:04:37 +00:00
Ian Lance Taylor
e6f8e59016 Support nil maps. 
From-SVN: r179054
 2011-09-21 17:37:50 +00:00
Ian Lance Taylor
f6cde0add6 Fix channels with element type of size zero. 
From-SVN: r179030
 2011-09-21 00:56:28 +00:00
Ian Lance Taylor
6fa2979911 Fix calling make with slice whose element type is size zero. 
From-SVN: r179019
 2011-09-20 22:06:20 +00:00
Ian Lance Taylor
31aeabd3c5 Block forever on send/receive to/from nil channel. 
From-SVN: r178920
 2011-09-16 22:56:32 +00:00
Ian Lance Taylor
adb0401dac Update Go library to r60. 
From-SVN: r178910
 2011-09-16 15:47:21 +00:00
Ian Lance Taylor
b9f04a8461 Fix defer when not calling recover in function with named results. 
From-SVN: r178905
 2011-09-16 05:47:20 +00:00
Ian Lance Taylor
ae06570eb6 libgo/runtime: Change std::abort to abort. 
From-SVN: r176181
 2011-07-11 20:16:01 +00:00
Ian Lance Taylor
de38eefaa7 Change builtin make to runtime call at lowering time. 
Use kindNoPointers as 6g does.

	* Make-lang.in (go/expressions.o): Depend on $(GO_RUNTIME_H).

From-SVN: r175020
 2011-06-14 13:51:16 +00:00
Ian Lance Taylor
3b8dffe701 Change builtin make to runtime call at lowering time. 
Use kindNoPointers as 6g does.

	* Make-lang.in (go/expressions.o): Depend on $(GO_RUNTIME_H).

From-SVN: r175008
 2011-06-14 05:53:10 +00:00
Ian Lance Taylor
891daafaf8 Use backend interface for map descriptors. 
From-SVN: r174943
 2011-06-11 06:21:55 +00:00
Ian Lance Taylor
5bb92e54b7 libgo: Make os.setenv_c work on systems without setenv. 
From-SVN: r174147
 2011-05-24 22:21:34 +00:00
Ian Lance Taylor
9ff56c9570 Update to current version of Go library. 
From-SVN: r173931
 2011-05-20 00:18:15 +00:00
Ian Lance Taylor
4e7e7a49b7 More uses of backend interface for types. 
From-SVN: r173507
 2011-05-06 20:06:29 +00:00
Ian Lance Taylor
e1c2f29025 libgo: Fix append declaration. 
From Rainer Orth.

From-SVN: r172659
 2011-04-18 17:31:00 +00:00
Ian Lance Taylor
b39c10b813 Unify handling of runtime support functions. 
This introduces the new approach, and rewrites the lowering
code which uses runtime functions.  The code which calls
runtime functions at GENERIC conversion time is not yet
rewritten.

From-SVN: r172396
 2011-04-13 21:00:59 +00:00
Ian Lance Taylor
9cc1bb97bc libgo: Use MAP_FIXED if necessary to grab arena. 
From Rainer Orth.

	PR go/48240
	* configure.ac: Check for mincore.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* runtime/mem.c: Include unistd.h.
	(addrspace_free): New function.
	(runtime_SysMap): Retry 64-bit runtime_mmap with MAP_FIXED.

From-SVN: r171961
 2011-04-05 00:02:15 +00:00
Rainer Orth
06ec98415a libgo: Always initialize semaphores. 
2011-04-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR go/48222
	* runtime/malloc.goc (runtime_mallocinit): Call
	runtime_Mprof_Init, runtime_initfintab.
	* runtime/cpuprof.c (runtime_cpuprofinit): New function.
	* runtime/runtime.h (runtime_cpuprofinit): Declare it.
	* runtime/go-main.c (main): Use it.

From-SVN: r171960
 2011-04-04 23:43:59 +00:00
Ian Lance Taylor
c29301d6b1 Add runtime profiling infrastructure, not yet working. 
From-SVN: r171579
 2011-03-27 19:14:55 +00:00
Ian Lance Taylor
c570af00f6 Remove closedchan function. 
From-SVN: r171577
 2011-03-27 18:06:50 +00:00
Ian Lance Taylor
fe052134f6 Remove closed function. Fix tuple receive in select. 
From-SVN: r171440
 2011-03-25 05:14:57 +00:00
Ian Lance Taylor
8039ca76a5 Update to current version of Go library. 
From-SVN: r171427
 2011-03-24 23:46:17 +00:00
Ian Lance Taylor
3137991dfc Tuple receives indicate whether channel is closed. 
From-SVN: r171380
 2011-03-24 06:01:27 +00:00
Ian Lance Taylor
4bfc521c9e Send on a closed channel panics. 
Calling close on a closed channel panics.
Don't limit number of receives on a closed channel.

From-SVN: r171364
 2011-03-23 21:13:57 +00:00
Ian Lance Taylor
7b5da51d4f Don't catch LIBPROF in Go code. 
From-SVN: r171077
 2011-03-16 23:18:40 +00:00
Ian Lance Taylor
5133f00ef8 Update to current version of Go library (revision 94d654be2064). 
From-SVN: r171076
 2011-03-16 23:05:44 +00:00
Ian Lance Taylor
7b5e671326 re PR go/48019 (Need to handle EINTR in libgo testsuite) 
PR go/48019
Ignore EINTR in runtime_lock_full.

From-SVN: r170810
 2011-03-09 06:31:37 +00:00
Ian Lance Taylor
a601335076 re PR go/47910 (typo in __go_map_next_prime) 
PR go/47910
Correct search for next prime in libgo map code.

From-SVN: r170808
 2011-03-09 05:32:36 +00:00
Ian Lance Taylor
d8b878dc29 Permit garbage collection on any compiler generated memory allocation. 
From-SVN: r170760
 2011-03-07 22:19:50 +00:00
Ian Lance Taylor
691a924baf Avoid race condition manipulating heap when goroutine exits. 
From-SVN: r170758
 2011-03-07 21:56:40 +00:00
Ian Lance Taylor
7b67393dff Permit comparing non-empty interfaces with empty interfaces. 
From-SVN: r170385
 2011-02-22 02:52:55 +00:00
Ian Lance Taylor
084996f1d1 Implement __sync_fetch_and_add_4 if necessary. 
From-SVN: r169820
 2011-02-04 00:49:47 +00:00
Ian Lance Taylor
0c521d1875 Check whether we are using setjmp/longjmp exceptions. 
From-SVN: r169777
 2011-02-03 01:53:36 +00:00
Ian Lance Taylor
a7c48c8ec5 Test whether libgcc or kernel defines __sync_bool_compare_and_swap_4. 
From-SVN: r169504
 2011-02-01 21:23:07 +00:00
Ian Lance Taylor
e499b5eef4 Add __sync_bool_compare_and_swap_4 for targets which don't have it. 
From-SVN: r169502
 2011-02-01 20:15:13 +00:00
Ian Lance Taylor
ca7174cf5c re PR go/47515 (Issues porting libgo to IRIX 6.5) 
PR go/47515
runtime: If no MAP_ANON, use /dev/zero.

From-SVN: r169388
 2011-01-29 07:16:20 +00:00
Ian Lance Taylor
47ba04ab54 Avoid crash when M structure free just before thread exit. 
From-SVN: r169121
 2011-01-22 02:59:24 +00:00
Ian Lance Taylor
039868965d libgo: Adjust deadlock avoidance. 
From-SVN: r169120
 2011-01-22 02:15:01 +00:00
Ian Lance Taylor
7e33c4aadc Avoid deadlock creating new thread. 
From-SVN: r169114
 2011-01-22 00:12:00 +00:00
Ian Lance Taylor
cf606aeb06 Avoid deadlock when finalizer lock is held during gc. 
From-SVN: r169112
 2011-01-21 23:33:52 +00:00
Ian Lance Taylor
ff5f50c52c Remove the types float and complex. 
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.

From-SVN: r169098
 2011-01-21 18:19:03 +00:00
Ian Lance Taylor
2e7e3e1de1 Add file missed in previous commit. 
From-SVN: r168684
 2011-01-11 23:26:03 +00:00
Ian Lance Taylor
9a00604e53 re PR go/46959 (M68K Not Supported by Go) 
PR go/46959
	PR go/46960
	PR go/46961
	PR go/46962
	PR go/46963
	PR go/46964
Use __builtin_unwind_init rather than the SAVE_REGS hack.

From-SVN: r168500
 2011-01-05 00:24:15 +00:00
Ian Lance Taylor
a3bc69c529 re PR go/46958 (ARM Go Does Not Compile (__builtin_return_address)) 
PR go/46958
	PR go/46965
Call __builtin_return_address with 0 rather than 1.

From-SVN: r168495
 2011-01-05 00:07:59 +00:00
Ian Lance Taylor
a4ad1c7a08 Rework locking code to split stack much less. 
From-SVN: r167973
 2010-12-17 06:42:06 +00:00
Ian Lance Taylor
b5343013fe Avoid always splitting the stack when calling append and copy. 
From-SVN: r167970
 2010-12-17 06:33:41 +00:00
Ian Lance Taylor
646abff51d Better error message if malloc gets a SIGSEGV. 
From-SVN: r167785
 2010-12-14 05:19:51 +00:00
Ian Lance Taylor
cac7efc966 Release cache while holding thread lock. 
Don't bother to hold thread lock while allocating cache.

From-SVN: r167784
 2010-12-14 05:16:18 +00:00