newlib-cygwin/newlib/libc/sys/linux/machine/i386/crt0.c

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2000-12-08 Werner Almesberger <Werner.Almesberger@epfl.ch> * configure.host: Added x86 linux target. * libc/unix/getpass.c (_PATH_PASSWD, _PASSWORD_LEN): Default definitions provided if not already defined. * libc/sys/linux/crt0.c: New file. * libc/sys/linux/Makefile.am: Ditto. * libc/sys/linux/Makefile.in: Ditto. * libc/sys/linux/aclocal.m4: Ditto. * libc/sys/linux/brk.c: Ditto. * libc/sys/linux/configure: Ditto. * libc/sys/linux/configure.in: Ditto. * libc/sys/linux/getoptlong.c: Ditto. * libc/sys/linux/ids.c: Ditto. * libc/sys/linux/inode.c: Ditto. * libc/sys/linux/io.c: Ditto. * libc/sys/linux/linux.c: Ditto. * libc/sys/linux/process.c: Ditto. * libc/sys/linux/realpath.c: Ditto. * libc/sys/linux/select.c: Ditto. * libc/sys/linux/signal.c: Ditto. * libc/sys/linux/systat.c: Ditto. * libc/sys/linux/termios.c: Ditto. * libc/sys/linux/time.c: Ditto. * libc/sys/linux/wait.c: Ditto. * libc/sys/linux/include/alloca.h: Ditto. * libc/sys/linux/include/getopt.h: Ditto. * libc/sys/linux/include/stdint.h: Ditto. * libc/sys/linux/include/unistd.h: Ditto. * libc/sys/linux/sys/cdefs.h: Ditto. * libc/sys/linux/sys/dirent.h: Ditto. * libc/sys/linux/sys/errno.h: Ditto. * libc/sys/linux/sys/fcntl.h: Ditto. * libc/sys/linux/sys/file.h: Ditto. * libc/sys/linux/sys/ioctl.h: Ditto. * libc/sys/linux/sys/resource.h: Ditto. * libc/sys/linux/sys/signal.h: Ditto. * libc/sys/linux/sys/stat.h: Ditto. * libc/sys/linux/sys/syscall.h: Ditto. * libc/sys/linux/sys/termios.h: Ditto. * libc/sys/linux/sys/time.h: Ditto. * libc/sys/linux/sys/types.h: Ditto. * libc/sys/linux/sys/utmp.h: Ditto. * libc/sys/linux/sys/utsname.h: Ditto. * libc/sys/linux/sys/wait.h: Ditto.
2000-12-09 09:20:32 +08:00
/* libc/sys/linux/crt0.c - Run-time initialization */
/* FIXME: This should be rewritten in assembler and
placed in a subdirectory specific to a platform.
There should also be calls to run constructors. */
/* Written 2000 by Werner Almesberger */
#include <stdlib.h>
#include <time.h>
2002-05-17 Jeff Johnston <jjohnstn@redhat.com> * Makefile.am: Copy and install headers from sys/machine/include directory. Also pass $toollibdir to lower-level directories. * Makefile.in: Regenerated. * libc/include/stdio.h[!_REENT_ONLY]: Change stdin, stdout, and stderr to use _REENT macro instead of _impure_ptr directly. * libc/include/sys/config.h[__i386__][__linux__]: Define __DYNAMIC_REENT__. * libc/include/sys/reent.h[!_REENT_ONLY]: Change _REENT macro to be call to __getreent() function if !__SINGLE_THREAD__ and __DYNAMIC_REENT__ is set. * libc/reent/Makefile.am: Add support for getreent.c. * libc/reent/Makefile.in: Regenerated. * libc/string/strerror.c: Add check if EOPNOTSUPP and ENOTSUP are same. * libc/sys/linux/Makefile.am: Add support for new files. * libc/sys/linux/configure.in: Add $EXTRA_DIRS variable. * libc/sys/linux/Makefile.in: Regenerated. * libc/sys/linux/configure: Ditto. * libc/sys/linux/io.c: Add poll syscall. Also weak-alias __close, __read, __write, __poll, __open, __lseek, __fcntl from their __libc_ counterparts. * libc/sys/linux/io64.c: Add __libc_ prefix to lseek64 and open64 and weak-alias to regular names. * libc/sys/linux/pread64.c: Rename to __libc_pread64 and weak-alias to pread64 and __pread64. * libc/sys/linux/process.c: Weak_alias __libc_getpid to __getpid. * libc/sys/linux/pwrite64.c: Rename to __libc_pwrite64 and weak-alias to pwrite64. * libc/sys/linux/sched.c: Weak-alias __libc_sched_getparam, __libc_sched_getscheduler, __libc_sched_get_priority_max, __libc_sched_get_priority_min, and __libc_sched_setschedule to name with __ instead of __libc_. * libc/sys/linux/siglongjmp.c: Include <machine/weakalias.h>. Rename siglongjmp to __libc_siglongjmp and weak-alias to siglongjmp. Call __libc_longjmp instead of longjmp, from __libc_siglongjmp. * libc/sys/linux/signal.c: Rename raise to __libc_raise and weak-alias to raise. * libc/sys/linux/socket.c: Weak-alias __libc_connect to __connect and __libc_send to __send. * libc/sys/linux/time.c: Weak-alias __libc_gettimeofday to __gettimeofday. * libc/sys/linux/wait.c: Rename wait to __libc_wait and weak-alias it to wait. Rename wait3 to __libc_wait3 and weak-alias it to wait3. * libc/sys/linux/include/setjmp.h: Use __jmp_buf in sigjmp_buf type and typedef __jmp_buf to jmp_buf. * libc/sys/linux/machine/i386/Makefile.am: Add syscalls.c and setjmp.S. * libc/sys/linux/machine/i386/Makefile.in: Regenerated. * libc/sys/linux/machine/i386/crt0.c: Add support to clear .bss section. * libc/sys/linux/machine/i386/socketcall.h: Change to use __libc_ prefix for function macros and then use weak_alias() to regular names. * libc/sys/linux/machine/i386/syscall.h: Ditto. * libc/sys/linux/sys/errno.h: Define EOPNOTSUP to be ENOTSUP. * libc/sys/linux/sys/stdio.h: Define _flockfile and _funlockfile to be flockfile() and funlockfile() respectively. * libc/sys/linux/sys/types.h * libc/reent/getreent.c: New file. * libc/sys/linux/flockfile.c: Ditto. * libc/sys/linux/funlockfile.c: Ditto. * libc/sys/linux/getreent.c: Ditto. * libc/sys/linux/pread.c: Ditto. * libc/sys/linux/pwrite.c: Ditto. * libc/sys/linux/raise.c: Ditto. * libc/sys/linux/system.c: Ditto. * libc/sys/linux/tcdrain.c: Ditto. * libc/sys/linux/machine/i386/i386mach.h: Ditto. * libc/sys/linux/machine/i386/setjmp.S: Ditto. * libc/sys/linux/machine/i386/syscalls.c: Ditto. * libc/sys/linux/machine/i386/weakalias.h: Ditto. * libc/sys/linux/machine/i386/include/setjmp.h: Ditto.
2002-05-18 07:39:39 +08:00
#include <string.h>
2000-12-08 Werner Almesberger <Werner.Almesberger@epfl.ch> * configure.host: Added x86 linux target. * libc/unix/getpass.c (_PATH_PASSWD, _PASSWORD_LEN): Default definitions provided if not already defined. * libc/sys/linux/crt0.c: New file. * libc/sys/linux/Makefile.am: Ditto. * libc/sys/linux/Makefile.in: Ditto. * libc/sys/linux/aclocal.m4: Ditto. * libc/sys/linux/brk.c: Ditto. * libc/sys/linux/configure: Ditto. * libc/sys/linux/configure.in: Ditto. * libc/sys/linux/getoptlong.c: Ditto. * libc/sys/linux/ids.c: Ditto. * libc/sys/linux/inode.c: Ditto. * libc/sys/linux/io.c: Ditto. * libc/sys/linux/linux.c: Ditto. * libc/sys/linux/process.c: Ditto. * libc/sys/linux/realpath.c: Ditto. * libc/sys/linux/select.c: Ditto. * libc/sys/linux/signal.c: Ditto. * libc/sys/linux/systat.c: Ditto. * libc/sys/linux/termios.c: Ditto. * libc/sys/linux/time.c: Ditto. * libc/sys/linux/wait.c: Ditto. * libc/sys/linux/include/alloca.h: Ditto. * libc/sys/linux/include/getopt.h: Ditto. * libc/sys/linux/include/stdint.h: Ditto. * libc/sys/linux/include/unistd.h: Ditto. * libc/sys/linux/sys/cdefs.h: Ditto. * libc/sys/linux/sys/dirent.h: Ditto. * libc/sys/linux/sys/errno.h: Ditto. * libc/sys/linux/sys/fcntl.h: Ditto. * libc/sys/linux/sys/file.h: Ditto. * libc/sys/linux/sys/ioctl.h: Ditto. * libc/sys/linux/sys/resource.h: Ditto. * libc/sys/linux/sys/signal.h: Ditto. * libc/sys/linux/sys/stat.h: Ditto. * libc/sys/linux/sys/syscall.h: Ditto. * libc/sys/linux/sys/termios.h: Ditto. * libc/sys/linux/sys/time.h: Ditto. * libc/sys/linux/sys/types.h: Ditto. * libc/sys/linux/sys/utmp.h: Ditto. * libc/sys/linux/sys/utsname.h: Ditto. * libc/sys/linux/sys/wait.h: Ditto.
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extern char **environ;
extern int main(int argc,char **argv,char **envp);
extern char _end;
extern char __bss_start;
2000-12-08 Werner Almesberger <Werner.Almesberger@epfl.ch> * configure.host: Added x86 linux target. * libc/unix/getpass.c (_PATH_PASSWD, _PASSWORD_LEN): Default definitions provided if not already defined. * libc/sys/linux/crt0.c: New file. * libc/sys/linux/Makefile.am: Ditto. * libc/sys/linux/Makefile.in: Ditto. * libc/sys/linux/aclocal.m4: Ditto. * libc/sys/linux/brk.c: Ditto. * libc/sys/linux/configure: Ditto. * libc/sys/linux/configure.in: Ditto. * libc/sys/linux/getoptlong.c: Ditto. * libc/sys/linux/ids.c: Ditto. * libc/sys/linux/inode.c: Ditto. * libc/sys/linux/io.c: Ditto. * libc/sys/linux/linux.c: Ditto. * libc/sys/linux/process.c: Ditto. * libc/sys/linux/realpath.c: Ditto. * libc/sys/linux/select.c: Ditto. * libc/sys/linux/signal.c: Ditto. * libc/sys/linux/systat.c: Ditto. * libc/sys/linux/termios.c: Ditto. * libc/sys/linux/time.c: Ditto. * libc/sys/linux/wait.c: Ditto. * libc/sys/linux/include/alloca.h: Ditto. * libc/sys/linux/include/getopt.h: Ditto. * libc/sys/linux/include/stdint.h: Ditto. * libc/sys/linux/include/unistd.h: Ditto. * libc/sys/linux/sys/cdefs.h: Ditto. * libc/sys/linux/sys/dirent.h: Ditto. * libc/sys/linux/sys/errno.h: Ditto. * libc/sys/linux/sys/fcntl.h: Ditto. * libc/sys/linux/sys/file.h: Ditto. * libc/sys/linux/sys/ioctl.h: Ditto. * libc/sys/linux/sys/resource.h: Ditto. * libc/sys/linux/sys/signal.h: Ditto. * libc/sys/linux/sys/stat.h: Ditto. * libc/sys/linux/sys/syscall.h: Ditto. * libc/sys/linux/sys/termios.h: Ditto. * libc/sys/linux/sys/time.h: Ditto. * libc/sys/linux/sys/types.h: Ditto. * libc/sys/linux/sys/utmp.h: Ditto. * libc/sys/linux/sys/utsname.h: Ditto. * libc/sys/linux/sys/wait.h: Ditto.
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void _start(int args)
{
/*
* The argument block begins above the current stack frame, because we
* have no return address. The calculation assumes that sizeof(int) ==
* sizeof(void *). This is okay for i386 user space, but may be invalid in
* other cases.
*/
int *params = &args-1;
int argc = *params;
char **argv = (char **) (params+1);
environ = argv+argc+1;
2002-05-17 Jeff Johnston <jjohnstn@redhat.com> * Makefile.am: Copy and install headers from sys/machine/include directory. Also pass $toollibdir to lower-level directories. * Makefile.in: Regenerated. * libc/include/stdio.h[!_REENT_ONLY]: Change stdin, stdout, and stderr to use _REENT macro instead of _impure_ptr directly. * libc/include/sys/config.h[__i386__][__linux__]: Define __DYNAMIC_REENT__. * libc/include/sys/reent.h[!_REENT_ONLY]: Change _REENT macro to be call to __getreent() function if !__SINGLE_THREAD__ and __DYNAMIC_REENT__ is set. * libc/reent/Makefile.am: Add support for getreent.c. * libc/reent/Makefile.in: Regenerated. * libc/string/strerror.c: Add check if EOPNOTSUPP and ENOTSUP are same. * libc/sys/linux/Makefile.am: Add support for new files. * libc/sys/linux/configure.in: Add $EXTRA_DIRS variable. * libc/sys/linux/Makefile.in: Regenerated. * libc/sys/linux/configure: Ditto. * libc/sys/linux/io.c: Add poll syscall. Also weak-alias __close, __read, __write, __poll, __open, __lseek, __fcntl from their __libc_ counterparts. * libc/sys/linux/io64.c: Add __libc_ prefix to lseek64 and open64 and weak-alias to regular names. * libc/sys/linux/pread64.c: Rename to __libc_pread64 and weak-alias to pread64 and __pread64. * libc/sys/linux/process.c: Weak_alias __libc_getpid to __getpid. * libc/sys/linux/pwrite64.c: Rename to __libc_pwrite64 and weak-alias to pwrite64. * libc/sys/linux/sched.c: Weak-alias __libc_sched_getparam, __libc_sched_getscheduler, __libc_sched_get_priority_max, __libc_sched_get_priority_min, and __libc_sched_setschedule to name with __ instead of __libc_. * libc/sys/linux/siglongjmp.c: Include <machine/weakalias.h>. Rename siglongjmp to __libc_siglongjmp and weak-alias to siglongjmp. Call __libc_longjmp instead of longjmp, from __libc_siglongjmp. * libc/sys/linux/signal.c: Rename raise to __libc_raise and weak-alias to raise. * libc/sys/linux/socket.c: Weak-alias __libc_connect to __connect and __libc_send to __send. * libc/sys/linux/time.c: Weak-alias __libc_gettimeofday to __gettimeofday. * libc/sys/linux/wait.c: Rename wait to __libc_wait and weak-alias it to wait. Rename wait3 to __libc_wait3 and weak-alias it to wait3. * libc/sys/linux/include/setjmp.h: Use __jmp_buf in sigjmp_buf type and typedef __jmp_buf to jmp_buf. * libc/sys/linux/machine/i386/Makefile.am: Add syscalls.c and setjmp.S. * libc/sys/linux/machine/i386/Makefile.in: Regenerated. * libc/sys/linux/machine/i386/crt0.c: Add support to clear .bss section. * libc/sys/linux/machine/i386/socketcall.h: Change to use __libc_ prefix for function macros and then use weak_alias() to regular names. * libc/sys/linux/machine/i386/syscall.h: Ditto. * libc/sys/linux/sys/errno.h: Define EOPNOTSUP to be ENOTSUP. * libc/sys/linux/sys/stdio.h: Define _flockfile and _funlockfile to be flockfile() and funlockfile() respectively. * libc/sys/linux/sys/types.h * libc/reent/getreent.c: New file. * libc/sys/linux/flockfile.c: Ditto. * libc/sys/linux/funlockfile.c: Ditto. * libc/sys/linux/getreent.c: Ditto. * libc/sys/linux/pread.c: Ditto. * libc/sys/linux/pwrite.c: Ditto. * libc/sys/linux/raise.c: Ditto. * libc/sys/linux/system.c: Ditto. * libc/sys/linux/tcdrain.c: Ditto. * libc/sys/linux/machine/i386/i386mach.h: Ditto. * libc/sys/linux/machine/i386/setjmp.S: Ditto. * libc/sys/linux/machine/i386/syscalls.c: Ditto. * libc/sys/linux/machine/i386/weakalias.h: Ditto. * libc/sys/linux/machine/i386/include/setjmp.h: Ditto.
2002-05-18 07:39:39 +08:00
/* Note: do not clear the .bss section. When running with shared
* libraries, certain data items such __mb_cur_max or environ
* may get placed in the .bss, even though they are initialized
* to non-zero values. Clearing the .bss will end up zeroing
* out their initial values. The .bss is already initialized
* by this time by Linux. */
2002-05-17 Jeff Johnston <jjohnstn@redhat.com> * Makefile.am: Copy and install headers from sys/machine/include directory. Also pass $toollibdir to lower-level directories. * Makefile.in: Regenerated. * libc/include/stdio.h[!_REENT_ONLY]: Change stdin, stdout, and stderr to use _REENT macro instead of _impure_ptr directly. * libc/include/sys/config.h[__i386__][__linux__]: Define __DYNAMIC_REENT__. * libc/include/sys/reent.h[!_REENT_ONLY]: Change _REENT macro to be call to __getreent() function if !__SINGLE_THREAD__ and __DYNAMIC_REENT__ is set. * libc/reent/Makefile.am: Add support for getreent.c. * libc/reent/Makefile.in: Regenerated. * libc/string/strerror.c: Add check if EOPNOTSUPP and ENOTSUP are same. * libc/sys/linux/Makefile.am: Add support for new files. * libc/sys/linux/configure.in: Add $EXTRA_DIRS variable. * libc/sys/linux/Makefile.in: Regenerated. * libc/sys/linux/configure: Ditto. * libc/sys/linux/io.c: Add poll syscall. Also weak-alias __close, __read, __write, __poll, __open, __lseek, __fcntl from their __libc_ counterparts. * libc/sys/linux/io64.c: Add __libc_ prefix to lseek64 and open64 and weak-alias to regular names. * libc/sys/linux/pread64.c: Rename to __libc_pread64 and weak-alias to pread64 and __pread64. * libc/sys/linux/process.c: Weak_alias __libc_getpid to __getpid. * libc/sys/linux/pwrite64.c: Rename to __libc_pwrite64 and weak-alias to pwrite64. * libc/sys/linux/sched.c: Weak-alias __libc_sched_getparam, __libc_sched_getscheduler, __libc_sched_get_priority_max, __libc_sched_get_priority_min, and __libc_sched_setschedule to name with __ instead of __libc_. * libc/sys/linux/siglongjmp.c: Include <machine/weakalias.h>. Rename siglongjmp to __libc_siglongjmp and weak-alias to siglongjmp. Call __libc_longjmp instead of longjmp, from __libc_siglongjmp. * libc/sys/linux/signal.c: Rename raise to __libc_raise and weak-alias to raise. * libc/sys/linux/socket.c: Weak-alias __libc_connect to __connect and __libc_send to __send. * libc/sys/linux/time.c: Weak-alias __libc_gettimeofday to __gettimeofday. * libc/sys/linux/wait.c: Rename wait to __libc_wait and weak-alias it to wait. Rename wait3 to __libc_wait3 and weak-alias it to wait3. * libc/sys/linux/include/setjmp.h: Use __jmp_buf in sigjmp_buf type and typedef __jmp_buf to jmp_buf. * libc/sys/linux/machine/i386/Makefile.am: Add syscalls.c and setjmp.S. * libc/sys/linux/machine/i386/Makefile.in: Regenerated. * libc/sys/linux/machine/i386/crt0.c: Add support to clear .bss section. * libc/sys/linux/machine/i386/socketcall.h: Change to use __libc_ prefix for function macros and then use weak_alias() to regular names. * libc/sys/linux/machine/i386/syscall.h: Ditto. * libc/sys/linux/sys/errno.h: Define EOPNOTSUP to be ENOTSUP. * libc/sys/linux/sys/stdio.h: Define _flockfile and _funlockfile to be flockfile() and funlockfile() respectively. * libc/sys/linux/sys/types.h * libc/reent/getreent.c: New file. * libc/sys/linux/flockfile.c: Ditto. * libc/sys/linux/funlockfile.c: Ditto. * libc/sys/linux/getreent.c: Ditto. * libc/sys/linux/pread.c: Ditto. * libc/sys/linux/pwrite.c: Ditto. * libc/sys/linux/raise.c: Ditto. * libc/sys/linux/system.c: Ditto. * libc/sys/linux/tcdrain.c: Ditto. * libc/sys/linux/machine/i386/i386mach.h: Ditto. * libc/sys/linux/machine/i386/setjmp.S: Ditto. * libc/sys/linux/machine/i386/syscalls.c: Ditto. * libc/sys/linux/machine/i386/weakalias.h: Ditto. * libc/sys/linux/machine/i386/include/setjmp.h: Ditto.
2002-05-18 07:39:39 +08:00
tzset(); /* initialize timezone info */
2000-12-08 Werner Almesberger <Werner.Almesberger@epfl.ch> * configure.host: Added x86 linux target. * libc/unix/getpass.c (_PATH_PASSWD, _PASSWORD_LEN): Default definitions provided if not already defined. * libc/sys/linux/crt0.c: New file. * libc/sys/linux/Makefile.am: Ditto. * libc/sys/linux/Makefile.in: Ditto. * libc/sys/linux/aclocal.m4: Ditto. * libc/sys/linux/brk.c: Ditto. * libc/sys/linux/configure: Ditto. * libc/sys/linux/configure.in: Ditto. * libc/sys/linux/getoptlong.c: Ditto. * libc/sys/linux/ids.c: Ditto. * libc/sys/linux/inode.c: Ditto. * libc/sys/linux/io.c: Ditto. * libc/sys/linux/linux.c: Ditto. * libc/sys/linux/process.c: Ditto. * libc/sys/linux/realpath.c: Ditto. * libc/sys/linux/select.c: Ditto. * libc/sys/linux/signal.c: Ditto. * libc/sys/linux/systat.c: Ditto. * libc/sys/linux/termios.c: Ditto. * libc/sys/linux/time.c: Ditto. * libc/sys/linux/wait.c: Ditto. * libc/sys/linux/include/alloca.h: Ditto. * libc/sys/linux/include/getopt.h: Ditto. * libc/sys/linux/include/stdint.h: Ditto. * libc/sys/linux/include/unistd.h: Ditto. * libc/sys/linux/sys/cdefs.h: Ditto. * libc/sys/linux/sys/dirent.h: Ditto. * libc/sys/linux/sys/errno.h: Ditto. * libc/sys/linux/sys/fcntl.h: Ditto. * libc/sys/linux/sys/file.h: Ditto. * libc/sys/linux/sys/ioctl.h: Ditto. * libc/sys/linux/sys/resource.h: Ditto. * libc/sys/linux/sys/signal.h: Ditto. * libc/sys/linux/sys/stat.h: Ditto. * libc/sys/linux/sys/syscall.h: Ditto. * libc/sys/linux/sys/termios.h: Ditto. * libc/sys/linux/sys/time.h: Ditto. * libc/sys/linux/sys/types.h: Ditto. * libc/sys/linux/sys/utmp.h: Ditto. * libc/sys/linux/sys/utsname.h: Ditto. * libc/sys/linux/sys/wait.h: Ditto.
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exit(main(argc,argv,environ));
}