Ian Lance Taylor 1683dab725 cmd/ld: fix bug with "runtime/cgo" in external link mode ... In external link mode the linker explicitly adds the string constant "runtime/cgo". It adds the string constant using the same symbol name as the compiler, but a different format. The compiler assumes that the string data immediately follows the string header, but the linker puts the two in different sections. The result is bad string data when the compiler sees "runtime/cgo" used as a string constant. The compiler assumption is in datastring in [568]g/gobj.c. The linker layout is in addstrdata in ld/data.c. The compiler assumption is valid for string literals. The linker is not creating a string literal, so its assumption is also valid. There are a few ways to avoid this problem. This patch fixes it by only doing the fake import of runtime/cgo if necessary, and by only creating the string symbol if necessary. Fixes #7234. LGTM=dvyukov R=golang-codereviews, dvyukov, bradfitz CC=golang-codereviews https://golang.org/cl/58410043		2014-01-30 09:25:47 -08:00
..
backdoor	misc/cgo/test: changes to pass when using gccgo	2012-11-01 13:54:09 -07:00
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
basic.go	cgo: enable cgo on openbsd	2012-12-21 01:43:19 +11:00
callback_c_gc.c	misc/cgo/test: fix C panic test to work with gccgo	2013-10-11 11:24:54 -07:00
callback_c_gccgo.c	misc/cgo/test: fix C panic test to work with gccgo	2013-10-11 11:24:54 -07:00
callback_c.c	misc/cgo/test: fix C panic test to work with gccgo	2013-10-11 11:24:54 -07:00
callback.go	runtime/cgo: mark callback functions as NOSPLIT	2013-10-09 08:44:47 -07:00
cflags.go	cmd/cgo, cmd/go: remove #cgo directive parsing from cmd/cgo	2013-04-10 21:41:54 -07:00
cgo_linux_test.go	runtime: co-exist with NPTL's pthread_cancel.	2014-01-09 09:34:04 -08:00
cgo_test.go	cmd/cgo: use __gcc_struct__ for go exported functions	2013-12-10 11:30:12 +11:00
cthread_unix.c	cgo: enable cgo on dragonfly	2013-09-04 15:19:21 -07:00
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	cgo: add missing semicolon in generated struct	2011-07-18 07:23:52 -07:00
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	cmd/go: new cgo build procedure	2012-08-17 03:42:34 +08:00
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	runtime: increase stack frame during cgo call on windows/amd64	2012-09-03 12:12:51 +10:00
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
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	cmd/cgo: use intgo, not int, for string and slice structures	2013-05-23 22:51:07 -07:00
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	runtime: co-exist with NPTL's pthread_cancel.	2014-01-09 09:34:04 -08:00
issue7234_test.go	cmd/ld: fix bug with "runtime/cgo" in external link mode	2014-01-30 09:25:47 -08:00
setgid_linux.go	misc/cgo/test: only run setgid test on GNU/Linux	2012-07-28 10:40:51 -07:00
sleep_windows_386.go	cmd/go: new cgo build procedure	2012-08-17 03:42:34 +08:00