Keith Randall b868616b63 cmd/cgo: special case C ptr types to use uintptr ...

Some C types are declared as pointers, but C code
stores non-pointers in them.  When the Go garbage
collector sees such a pointer, it gets unhappy.

Instead, for these types represent them on the Go
side with uintptr.

We need this change to handle Apple's CoreFoundation
CF*Ref types. Users of these types might need to
update their code like we do in root_cgo_darwin.go.
The only change that is required under normal
circumstances is converting some nils to 0.
A go fix module is provided to help.

Fixes #21897

RELNOTE=yes

Change-Id: I9716cfb255dc918792625f42952aa171cd31ec1b
Reviewed-on: https://go-review.googlesource.com/66332
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

2017-11-17 22:11:03 +00:00

..

gcc68255

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8756

cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end

2016-08-31 06:30:26 +00:00

issue8828

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue9026

misc/cgo/test: fix freebsd test failure by moving test to its own package.

2014-11-03 13:41:03 -05:00

issue9400

misc/cgo/test: add mipsx test case for #9400

2016-12-15 17:05:29 +00:00

issue9510a

cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking

2015-11-14 18:56:17 +00:00

issue9510b

cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking

2015-11-14 18:56:17 +00:00

issue20266

go/build: make -I/-L options in cgo flags absolute

2017-06-13 18:36:04 +00:00

align.go

test: Add the usual Copyright notice.

2012-01-24 14:48:15 -05:00

api.go

cmd/cgo: only record typedef name for pointer to struct

2016-11-01 23:06:24 +00:00

backdoor.go

misc/cgo/test: get rid of the backdoor package

2014-12-24 00:18:21 +00:00

basic.go

misc/cgo/test: add test that gccgo fails

2016-10-13 00:03:57 +00:00

buildid_linux.go

go/printer: forbid empty line before first comment in block

2017-11-02 18:17:22 +00:00

callback_c_gc.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

callback_c_gccgo.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

callback_c.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

callback.go

cmd/cgo: always use a function literal for pointer checking

2016-10-19 21:20:50 +00:00

cflags.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

cgo_linux_test.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

cgo_stubs_android_test.go

misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android

2016-06-01 22:06:51 +00:00

cgo_test.go

cmd/cgo: special case C ptr types to use uintptr

2017-11-17 22:11:03 +00:00

cgo_thread_lock.go

misc/cgo/test: add test that gccgo fails

2016-10-13 00:03:57 +00:00

cgo_unix_test.go

runtime/cgo: retry pthread_create on EAGAIN

2016-12-05 18:46:18 +00:00

checkconst.go

cmd/cgo: preserve original call arguments when pointer checking

2016-10-21 20:46:20 +00:00

complex.go

cmd/compile, cmd/cgo: align complex{64,128} like GCC

2016-10-05 17:44:27 +00:00

cthread_unix.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

cthread_windows.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

cthread.go

misc/cgo/test,cmd/dist: enable (more) Cgo tests on iOS

2016-06-02 10:09:12 +00:00

duplicate_symbol.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

env.go

misc/cgo/test: fix go vet warnings

2015-10-13 17:53:20 +00:00

exports.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

fpvar.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

gcc68255.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

helpers.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue1222.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue1328.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue1560.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue1635.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue2462.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3250.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3250w.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3261.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3729.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3729w.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3741.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue3775.go

misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android

2016-06-01 22:06:51 +00:00

issue3945.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4029.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4029.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4029w.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4054a.go

cgo: process DWARF info even when debug data is used for value

2012-09-20 13:20:33 +10:00

issue4054b.go

cgo: process DWARF info even when debug data is used for value

2012-09-20 13:20:33 +10:00

issue4273.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4273b.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4339.c

misc/cgo/test: test of issue 4339

2013-09-11 09:56:38 -04:00

issue4339.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4339.h

misc/cgo/test: test of issue 4339

2013-09-11 09:56:38 -04:00

issue4417.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue4857.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5227.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5242.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5337.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5337w.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5548_c.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5548.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5603.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5740.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5740a.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5740b.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue5986.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6128.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6390.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6472.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6506.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6612.go

cmd/cgo: support floating point #define macros

2017-04-07 21:09:44 +00:00

issue6833_c.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6833.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue6907.go

cmd/cgo: permit passing string values directly between Go and C

2017-11-15 03:36:54 +00:00

issue6907export_c.c

cmd/cgo: permit passing string values directly between Go and C

2017-11-15 03:36:54 +00:00

issue6907export.go

cmd/cgo: permit passing string values directly between Go and C

2017-11-15 03:36:54 +00:00

issue6997_linux.c

misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android

2016-06-01 22:06:51 +00:00

issue6997_linux.go

misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android

2016-06-01 22:06:51 +00:00

issue7234_test.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue7560.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue7665.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue7786.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue7978.go

misc/cgo/test: set the traceback level instead of failing the test

2017-09-13 02:53:11 +00:00

issue8092.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8148.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8331.h

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8331a.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8331b.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8428.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8441.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8517_windows.c

misc/cgo/test: add Test8517

2014-10-09 16:10:51 +11:00

issue8517_windows.go

misc/cgo/test: add Test8517

2014-10-09 16:10:51 +11:00

issue8517.go

misc/cgo/test: add Test8517

2014-10-09 16:10:51 +11:00

issue8694.go

misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android

2016-06-01 22:06:51 +00:00

issue8756.go

cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end

2016-08-31 06:30:26 +00:00

issue8811.c

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8811.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue8828.go

cmd/go: add '_go_' suffix to go files compiled by gccgo to avoid naming conflicts

2014-10-15 13:13:37 -07:00

issue8945.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue9026.go

misc/cgo/test: fix freebsd test failure by moving test to its own package.

2014-11-03 13:41:03 -05:00

issue9400_linux.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue9510.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue9557.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue10303.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue11925.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue12030.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue13402.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue13930.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue14838.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

issue17065.go

misc/cgo/test: add skipped test for issue 17065

2016-09-11 20:43:11 +00:00

issue17537.go

cmd/cgo: don't strip qualifiers from C void* pointer

2016-12-14 00:59:38 +00:00

issue18126.go

cmd/cgo: fix cgo checking when fetching errno value

2016-12-01 02:13:50 +00:00

issue18146.go

misc/cgo/test: pass current environment to syscall.Exec

2017-01-20 21:12:54 +00:00

issue18720.go

cmd/cgo: support niladic function-like macros

2017-08-30 18:28:58 +00:00

issue20129.go

cmd/cgo: unwrap typedef-chains before type checking

2017-06-27 23:02:34 +00:00

issue20266.go

go/build: make -I/-L options in cgo flags absolute

2017-06-13 18:36:04 +00:00

issue20369.go

cmd/cgo: support large unsigned macros

2017-05-17 14:42:29 +00:00

issue20910.c

cmd/cgo: unify cgo output for gc and gccgo

2017-08-16 21:57:56 +00:00

issue20910.go

cmd/cgo: unify cgo output for gc and gccgo

2017-08-16 21:57:56 +00:00

issue21668.go

cmd/cgo: avoid using common names for sniffing

2017-08-29 00:42:34 +00:00

issue21708.go

cmd/cgo: support large unsigned macro again

2017-09-01 00:42:21 +00:00

issue21809.go

go/printer: fix formatting of three-index slice expression

2017-10-03 16:16:30 +00:00

issue21897.go

cmd/cgo: special case C ptr types to use uintptr

2017-11-17 22:11:03 +00:00

issue21897b.go

cmd/cgo: special case C ptr types to use uintptr

2017-11-17 22:11:03 +00:00

setgid_linux.go

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

sigaltstack.go

misc/cgo/test: fix test when using GCC 7

2017-01-20 21:12:19 +00:00

sigprocmask.c

runtime: don't always unblock all signals on dragonfly, freebsd and openbsd

2016-04-15 21:20:45 +00:00

sigprocmask.go

runtime: don't always unblock all signals on dragonfly, freebsd and openbsd

2016-04-15 21:20:45 +00:00