From 85219b356e249702b845cf667462584945b1735b Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Sat, 8 Jul 2000 04:36:27 +0000 Subject: * external.cc (cygwin_internal): Export __cygwin_user_data. * include/sys/cygwin.h: Allow definition of per_process even when not compiling with C++. (cygwin_getinfo_types): Add CW_USER_DATA. * lib/_cygwin_crt0_common.cc (_cygwin_crt0_common): Get __cygwin_user_data pointer from cygwin_internal. If it doesn't exist, return failure. Use either this pointer or passed in pointer throughout. Clear forkee. * lib/crt0.h: Accomodate argument changes to _cygwin_crt0_common. * lib/cygwin_attach_dll.c (cygwin_attach_dll): Reorganize to allow use of newer binaries with older DLLs. Detect older DLLs when _cygwin_crt0_common returns 0 and allocate space for a per_process structure on the stack. * lib/cygwin_crt0.c (cygwin_crt0): Ditto. --- winsup/cygwin/lib/cygwin_crt0.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'winsup/cygwin/lib/cygwin_crt0.c') diff --git a/winsup/cygwin/lib/cygwin_crt0.c b/winsup/cygwin/lib/cygwin_crt0.c index f0656a171..785d9f119 100644 --- a/winsup/cygwin/lib/cygwin_crt0.c +++ b/winsup/cygwin/lib/cygwin_crt0.c @@ -1,4 +1,4 @@ -/* crt0.cc: crt0 for libc +/* cygwin_crt0.cc: crt0 for cygwin Copyright 2000 Cygnus Solutions. @@ -8,17 +8,24 @@ This software is a copyrighted work licensed under the terms of the Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ +#undef __INSIDE_CYGWIN__ #include +#include #include "crt0.h" -extern void __stdcall _dll_crt0 (void) __declspec (dllimport) __attribute ((noreturn)); +extern void dll_crt0__FP11per_process (struct per_process *) __declspec (dllimport) __attribute ((noreturn)); /* for main module */ void cygwin_crt0 (MainFunc f) { - _cygwin_crt0_common (f); - - /* Jump into the dll. */ - _dll_crt0 (); + struct per_process *u; + if (_cygwin_crt0_common (f, NULL)) + u = NULL; /* Newer DLL. Use DLL internal per_process. */ + else /* Older DLL. Provide a per_process */ + { + u = (struct per_process *) alloca (sizeof (*u)); + (void) _cygwin_crt0_common (f, u); + } + dll_crt0__FP11per_process (u); /* Jump into the dll, never to return */ } -- cgit v1.2.3