Ian Lance Taylor 7904946eeb cmd/cgo: discard trailing zero-sized fields in a non-empty C struct ... In order to fix issue #9401 the compiler was changed to add a padding byte to any non-empty Go struct that ends in a zero-sized field. That causes the Go version of such a C struct to have a different size than the C struct, which can considerable confusion. Change cgo so that it discards any such zero-sized fields, so that the Go and C structs are the same size. This is a change from previous releases, in that it used to be possible to refer to a zero-sized trailing field (by taking its address), and with this change it no longer is. That is unfortunate, but something has to change. It seems better to visibly break programs that do this rather than to silently break programs that rely on the struct sizes being the same. Update #9401. Fixes #11925. Change-Id: I3fba3f02f11265b3c41d68616f79dedb05b81225 Reviewed-on: https://go-review.googlesource.com/12864 Reviewed-by: Russ Cox <rsc@golang.org>		2015-07-30 15:55:25 +00:00
..
issue8828	cmd/go: add '_go_' suffix to go files compiled by gccgo to avoid naming conflicts	2014-10-15 13:13:37 -07:00
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/issue9400: fix to build with gccgo	2015-04-29 16:57:13 +00:00
align.go	test: Add the usual Copyright notice.	2012-01-24 14:48:15 -05:00
api.go	misc/cgo/test: check API compatibility for cgo pseudo-functions	2013-05-30 02:59:57 +08:00
backdoor.go	misc/cgo/test: get rid of the backdoor package	2014-12-24 00:18:21 +00:00
basic.go	cmd/cgo: add missing ast.SliceExpr.Max case to AST traversal.	2014-09-30 16:08:04 -04:00
buildid_linux.go	cmd/go: pass --build-id=none when generating a cgo .o	2014-08-07 12:38:39 -07:00
callback_c_gc.c	runtime: delete cgo_allocate	2015-04-17 01:30:47 +00:00
callback_c_gccgo.c	runtime: delete cgo_allocate	2015-04-17 01:30:47 +00:00
callback_c.c	cgo: adjust return value location to account for stack copies.	2014-09-25 07:59:01 -07:00
callback.go	runtime: rename cgocall_errno and asmcgocall_errno into cgocall and asmcgocall	2015-06-19 01:47:11 +00:00
cflags.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
cgo_linux_test.go	runtime: don't always unblock all signals	2015-05-22 20:24:08 +00:00
cgo_test.go	cmd/cgo: discard trailing zero-sized fields in a non-empty C struct	2015-07-30 15:55:25 +00:00
cthread_unix.c	misc/cgo: add various solaris build lines	2015-05-06 11:38:08 +00:00
cthread_windows.c	runtime: allow cgo callbacks on non-Go threads	2013-02-20 17:48:23 -05:00
cthread.go	runtime: fix stack pointer corruption in runtime.cgocallback_gofunc()	2013-04-30 04:13:32 +08:00
duplicate_symbol.go	cgo: omit duplicate symbols in writeDefs	2011-08-16 14:56:23 -04:00
env.go	misc/cgo/test: make tests run on windows	2012-01-20 12:59:44 +11:00
exports.go	runtime: remove untyped allocation of ParFor	2014-09-16 11:03:11 -04:00
fpvar.go	cmd/cgo: Add support for C function pointers	2013-08-13 12:42:21 -04:00
helpers.go	cgo: fix incorrect print found by govet	2011-11-29 14:40:34 +11:00
issue1222.go	runtime: scheduler, cgo reorganization	2011-03-07 10:37:42 -05:00
issue1328.go	misc/cgo: re-enable some tests	2012-03-06 23:27:30 -05:00
issue1560.go	misc/cgo/test: deflake TestParallelSleep once more	2013-05-18 02:55:44 +08:00
issue1635.go	cmd/ld: handle a special case of scattered relocation 2/1 on Darwin/386	2012-08-29 23:42:05 +08:00
issue2462.go	cgo: support export for built-in types	2011-12-20 09:28:45 -08:00
issue3250.go	misc/cgo/test: skip test for issue 3250, the runtime isn't ready yet.	2013-07-15 14:37:36 +08:00
issue3250w.go	runtime: correctly handle signals received on foreign threads	2013-07-12 04:39:39 +08:00
issue3261.go	misc/cgo/test: skip issue3261 test on darwin/arm64	2015-04-16 13:00:47 +00:00
issue3729.go	cmd/cgo: access errno from void C function	2012-12-18 00:26:08 +08:00
issue3729w.go	cmd/cgo: access errno from void C function	2012-12-18 00:26:08 +08:00
issue3741.go	cmd/cgo: generate definitions for GoSlice	2012-06-30 12:40:07 +08:00
issue3775.go	misc/cgo/test: test recursive internal OS thread lock	2013-07-23 14:43:55 -04:00
issue3945.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
issue4029.go	misc/cgo/test: do not stop on first error	2013-03-06 15:03:28 -05:00
issue4029w.go	misc/cgo/test: add -ldl to LDFLAGS on Linux, ignore issue4029 on windows (fix build)	2012-10-10 01:30:34 +08:00
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	cmd/ld: handle weak symbols	2012-10-30 23:58:43 +08:00
issue4273b.c	cmd/ld: handle weak symbols	2012-10-30 23:58:43 +08:00
issue4339.c	misc/cgo/test: test of issue 4339	2013-09-11 09:56:38 -04:00
issue4339.go	misc/cgo/test: test of issue 4339	2013-09-11 09:56:38 -04:00
issue4339.h	misc/cgo/test: test of issue 4339	2013-09-11 09:56:38 -04:00
issue4417.go	cmd/cgo: access errno from void C function	2012-12-18 00:26:08 +08:00
issue4857.go	cmd/cgo: using __typeof__(a->r) instead of putting invalid TYPE in "a->r = (const TYPE)"	2013-06-02 22:46:53 +08:00
issue5227.go	misc/cgo/test: fix a gcc warning	2013-04-18 02:33:55 +08:00
issue5242.go	cmd/cgo: fix default alignment for empty structs	2014-08-11 22:10:17 -07:00
issue5337.go	misc/cgo/test: make test work with -linkmode=internal	2013-07-11 23:24:35 -04:00
issue5337w.go	misc/cgo/test: add missing import	2013-05-15 15:34:47 +10:00
issue5548_c.c	cmd/cgo: use intgo, not int, for string and slice structures	2013-05-23 22:51:07 -07:00
issue5548.go	misc/cgo/test: make issue5548 test pickier	2014-09-05 14:59:09 -04:00
issue5603.go	cmd/cgo: use gcc_struct attribute for packed structs to work around GCC PR52991.	2013-06-09 22:06:29 +08:00
issue5740.go	cmd/ld: handle duplicate static symbols in COFF and Mach-O files.	2013-09-18 22:27:25 -04:00
issue5740a.c	cmd/ld: handle duplicate static symbols in COFF and Mach-O files.	2013-09-18 22:27:25 -04:00
issue5740b.c	cmd/ld: handle duplicate static symbols in COFF and Mach-O files.	2013-09-18 22:27:25 -04:00
issue5986.go	cmd/go: fix missing __mingw_fprintf symbol for cgo on windows	2013-09-19 01:20:02 -04:00
issue6128.go	cmd/cgo: fix Xcode 5 incompatibility for #defined expressions	2013-10-15 14:34:46 -04:00
issue6390.go	cmd/cgo: fix build (missing file from earlier CL)	2013-09-16 14:21:54 -04:00
issue6472.go	debug/dwarf: handle surprising clang encoding	2013-10-09 11:08:22 -04:00
issue6506.go	misc/cgo/test: cut out non-standard functions	2013-10-15 14:25:29 -04:00
issue6612.go	cmd/cgo: stop using compiler error message text to analyze C names	2013-10-18 15:56:25 -04:00
issue6833_c.c	cmd/cgo: use __gcc_struct__ for go exported functions	2013-12-10 11:30:12 +11:00
issue6833.go	cmd/cgo: use __gcc_struct__ for go exported functions	2013-12-10 11:30:12 +11:00
issue6997_linux.c	runtime: co-exist with NPTL's pthread_cancel.	2014-01-09 09:34:04 -08:00
issue6997_linux.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
issue7234_test.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
issue7560.go	cmd/cgo: omit misaligned struct fields, like we omit bitfields	2014-05-12 23:48:20 -04:00
issue7665.go	cmd/gc: disable link-time copying of un-Go-initialized globals	2014-05-09 16:03:44 -04:00
issue7786.go	cmd/cgo: given typedef struct S T, make C.T and C.struct_S interchangeable	2014-05-28 14:04:31 -04:00
issue7978.go	runtime: rename cgocall_errno and asmcgocall_errno into cgocall and asmcgocall	2015-06-19 01:47:11 +00:00
issue8092.go	cmd/{ld,link,objdump}, runtime, debug/gosym: move linker-defined symbols into runtime package	2014-08-27 20:15:05 -04:00
issue8148.go	cmd/cgo: for typedef of untagged struct, use typedef name in C code	2014-06-05 10:42:03 -07:00
issue8331.h	cmd/cgo: use same Go type for typedef to anonymous struct	2014-06-02 12:55:43 -07:00
issue8331a.go	cmd/cgo: use same Go type for typedef to anonymous struct	2014-06-02 12:55:43 -07:00
issue8331b.go	cmd/cgo: use same Go type for typedef to anonymous struct	2014-06-02 12:55:43 -07:00
issue8428.go	cmd/cgo: discard trailing zero-sized fields in a non-empty C struct	2015-07-30 15:55:25 +00:00
issue8441.go	cmd/cgo: fix recursive type mapping	2014-08-05 18:16:56 -07:00
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: skip test8694 on ARM.	2014-12-11 17:34:10 +11:00
issue8811.c	cmd/ld: do not assume that only pe section names start with '.'	2014-10-11 22:01:04 +11:00
issue8811.go	cmd/ld: do not assume that only pe section names start with '.'	2014-10-11 22:01:04 +11:00
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	cmd/cgo: fix a problem with 'go build -compiler gccgo'	2015-06-29 15:15:59 +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	misc/cgo: fix issue 9400 test on 386	2014-12-23 02:22:50 +00:00
issue9557.go	cmd/cgo: also rewrite C.var in selector expressions	2015-01-12 21:48:57 +00:00
issue10303.go	cmd/cgo: make sure pointers passed to C escape to heap	2015-06-15 17:39:53 +00:00
issue11925.go	cmd/cgo: discard trailing zero-sized fields in a non-empty C struct	2015-07-30 15:55:25 +00:00
setgid_linux.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
sigprocmask_linux.c	misc/cgo/test: fix build for CC=clang	2015-05-22 22:54:24 +00:00
sigprocmask_linux.go	runtime: don't always unblock all signals	2015-05-22 20:24:08 +00:00
sleep_windows_386.go	cmd/go: new cgo build procedure	2012-08-17 03:42:34 +08:00