newlib-cygwin/winsup/cygwin/lib/cygwin_crt0.c

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/* cygwin_crt0.cc: crt0 for cygwin
* Makefile.in: Use variables rather than configure constructs where appropriate. (LIBCOS): Find additional stub library stuff in their own subdirectory. * dcrt0.cc: Convert user_data pointer to static __cygwin_user_data area. (do_global_ctors): Check magic_bisquit for initialization. (dll_crt0_1): First group of premain functions prior to fd initialization. Run second group before calling main. (dll_crt0 ()): New function, called from new initialization code. (dll_crt0 (per_process *uptr)): Call new dll_crt0 () function on initialization. * debug.cc (thread_stub): Initialize bottom of stack with per-thread info. * environ.cc (parse_thing): Use binmode global to control CYGWIN=binmode behavior. * fhandler.cc (fhandler_base::open): Allow explicit setting of __fmode to O_BINARY or O_TEXT to override disk mount settings. * libcmain.cc: Move to lib subdirectory. * libccrt0.cc: Ditto. * dll_main.cc: Ditto. * dll_entry.cc: Ditto. * getopt.c: Ditto. * thread.cc (thread_init_wrapper): Call ExitThread explicitly rather than returning, as a preliminary step towards placing per thread info at the bottom of the stack. * winsup.h: Move per_process class to include/sys/cygwin.h. Declare new dll_crt0(). * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. * lib/cygwin_crt0.c: Ditto. * lib/dll_entry.cc: Ditto. * lib/dll_main.cc: Ditto. * lib/getopt.c: Ditto. * lib/libcmain.c: Ditto. * lib/premain0.c: Ditto. * lib/premain1.c: Ditto. * lib/premain2.c: Ditto. * lib/premain3.c: Ditto.
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Copyright 2000 Cygnus Solutions.
This file is part of Cygwin.
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__
* Makefile.in: Use variables rather than configure constructs where appropriate. (LIBCOS): Find additional stub library stuff in their own subdirectory. * dcrt0.cc: Convert user_data pointer to static __cygwin_user_data area. (do_global_ctors): Check magic_bisquit for initialization. (dll_crt0_1): First group of premain functions prior to fd initialization. Run second group before calling main. (dll_crt0 ()): New function, called from new initialization code. (dll_crt0 (per_process *uptr)): Call new dll_crt0 () function on initialization. * debug.cc (thread_stub): Initialize bottom of stack with per-thread info. * environ.cc (parse_thing): Use binmode global to control CYGWIN=binmode behavior. * fhandler.cc (fhandler_base::open): Allow explicit setting of __fmode to O_BINARY or O_TEXT to override disk mount settings. * libcmain.cc: Move to lib subdirectory. * libccrt0.cc: Ditto. * dll_main.cc: Ditto. * dll_entry.cc: Ditto. * getopt.c: Ditto. * thread.cc (thread_init_wrapper): Call ExitThread explicitly rather than returning, as a preliminary step towards placing per thread info at the bottom of the stack. * winsup.h: Move per_process class to include/sys/cygwin.h. Declare new dll_crt0(). * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. * lib/cygwin_crt0.c: Ditto. * lib/dll_entry.cc: Ditto. * lib/dll_main.cc: Ditto. * lib/getopt.c: Ditto. * lib/libcmain.c: Ditto. * lib/premain0.c: Ditto. * lib/premain1.c: Ditto. * lib/premain2.c: Ditto. * lib/premain3.c: Ditto.
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#include <windows.h>
#include <sys/cygwin.h>
* Makefile.in: Use variables rather than configure constructs where appropriate. (LIBCOS): Find additional stub library stuff in their own subdirectory. * dcrt0.cc: Convert user_data pointer to static __cygwin_user_data area. (do_global_ctors): Check magic_bisquit for initialization. (dll_crt0_1): First group of premain functions prior to fd initialization. Run second group before calling main. (dll_crt0 ()): New function, called from new initialization code. (dll_crt0 (per_process *uptr)): Call new dll_crt0 () function on initialization. * debug.cc (thread_stub): Initialize bottom of stack with per-thread info. * environ.cc (parse_thing): Use binmode global to control CYGWIN=binmode behavior. * fhandler.cc (fhandler_base::open): Allow explicit setting of __fmode to O_BINARY or O_TEXT to override disk mount settings. * libcmain.cc: Move to lib subdirectory. * libccrt0.cc: Ditto. * dll_main.cc: Ditto. * dll_entry.cc: Ditto. * getopt.c: Ditto. * thread.cc (thread_init_wrapper): Call ExitThread explicitly rather than returning, as a preliminary step towards placing per thread info at the bottom of the stack. * winsup.h: Move per_process class to include/sys/cygwin.h. Declare new dll_crt0(). * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. * lib/cygwin_crt0.c: Ditto. * lib/dll_entry.cc: Ditto. * lib/dll_main.cc: Ditto. * lib/getopt.c: Ditto. * lib/libcmain.c: Ditto. * lib/premain0.c: Ditto. * lib/premain1.c: Ditto. * lib/premain2.c: Ditto. * lib/premain3.c: Ditto.
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#include "crt0.h"
#define alloca __builtin_alloca
extern void dll_crt0__FP11per_process (struct per_process *) __declspec (dllimport) __attribute ((noreturn));
* Makefile.in: Use variables rather than configure constructs where appropriate. (LIBCOS): Find additional stub library stuff in their own subdirectory. * dcrt0.cc: Convert user_data pointer to static __cygwin_user_data area. (do_global_ctors): Check magic_bisquit for initialization. (dll_crt0_1): First group of premain functions prior to fd initialization. Run second group before calling main. (dll_crt0 ()): New function, called from new initialization code. (dll_crt0 (per_process *uptr)): Call new dll_crt0 () function on initialization. * debug.cc (thread_stub): Initialize bottom of stack with per-thread info. * environ.cc (parse_thing): Use binmode global to control CYGWIN=binmode behavior. * fhandler.cc (fhandler_base::open): Allow explicit setting of __fmode to O_BINARY or O_TEXT to override disk mount settings. * libcmain.cc: Move to lib subdirectory. * libccrt0.cc: Ditto. * dll_main.cc: Ditto. * dll_entry.cc: Ditto. * getopt.c: Ditto. * thread.cc (thread_init_wrapper): Call ExitThread explicitly rather than returning, as a preliminary step towards placing per thread info at the bottom of the stack. * winsup.h: Move per_process class to include/sys/cygwin.h. Declare new dll_crt0(). * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. * lib/cygwin_crt0.c: Ditto. * lib/dll_entry.cc: Ditto. * lib/dll_main.cc: Ditto. * lib/getopt.c: Ditto. * lib/libcmain.c: Ditto. * lib/premain0.c: Ditto. * lib/premain1.c: Ditto. * lib/premain2.c: Ditto. * lib/premain3.c: Ditto.
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/* for main module */
void
cygwin_crt0 (MainFunc f)
{
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));
memset (u, 0, sizeof (u));
(void) _cygwin_crt0_common (f, u);
}
dll_crt0__FP11per_process (u); /* Jump into the dll, never to return */
* Makefile.in: Use variables rather than configure constructs where appropriate. (LIBCOS): Find additional stub library stuff in their own subdirectory. * dcrt0.cc: Convert user_data pointer to static __cygwin_user_data area. (do_global_ctors): Check magic_bisquit for initialization. (dll_crt0_1): First group of premain functions prior to fd initialization. Run second group before calling main. (dll_crt0 ()): New function, called from new initialization code. (dll_crt0 (per_process *uptr)): Call new dll_crt0 () function on initialization. * debug.cc (thread_stub): Initialize bottom of stack with per-thread info. * environ.cc (parse_thing): Use binmode global to control CYGWIN=binmode behavior. * fhandler.cc (fhandler_base::open): Allow explicit setting of __fmode to O_BINARY or O_TEXT to override disk mount settings. * libcmain.cc: Move to lib subdirectory. * libccrt0.cc: Ditto. * dll_main.cc: Ditto. * dll_entry.cc: Ditto. * getopt.c: Ditto. * thread.cc (thread_init_wrapper): Call ExitThread explicitly rather than returning, as a preliminary step towards placing per thread info at the bottom of the stack. * winsup.h: Move per_process class to include/sys/cygwin.h. Declare new dll_crt0(). * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. * lib/cygwin_crt0.c: Ditto. * lib/dll_entry.cc: Ditto. * lib/dll_main.cc: Ditto. * lib/getopt.c: Ditto. * lib/libcmain.c: Ditto. * lib/premain0.c: Ditto. * lib/premain1.c: Ditto. * lib/premain2.c: Ditto. * lib/premain3.c: Ditto.
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}