Differential D21070 Diff 60147 lib/csu/powerpc64/crt1.c

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lib/csu/powerpc64/crt1.c

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	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/			*/

	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

	#include <stdlib.h>			#include <stdlib.h>
				#include <stdint.h>
				#include <sys/elf.h>

				static uint32_t cpu_features;
				static uint32_t cpu_features2;

	#include "libc_private.h"			#include "libc_private.h"
	#include "crtbrand.c"			#include "crtbrand.c"
	#include "ignore_init.c"			#include "ignore_init.c"

	struct Struct_Obj_Entry;			struct Struct_Obj_Entry;
	struct ps_strings;			struct ps_strings;

	extern void _start(int, char , char , const struct Struct_Obj_Entry *,			extern void _start(int, char , char , const struct Struct_Obj_Entry *,
	void ()(void), struct ps_strings );			void ()(void), struct ps_strings );

	#ifdef GCRT			#ifdef GCRT
	extern void _mcleanup(void);			extern void _mcleanup(void);
	extern void monstartup(void , void );			extern void monstartup(void , void );
	extern int eprol;			extern int eprol;
	extern int etext;			extern int etext;
	#endif			#endif

	struct ps_strings *__ps_strings;			struct ps_strings *__ps_strings;

				static void
				init_cpu_features(char **env)
				{
				const Elf_Auxinfo *aux;

				/* Find the auxiliary vector on the stack. */
				while (env++ != 0) / Skip over environment, and NULL terminator */
				;
				aux = (const Elf_Auxinfo *)env;

				/* Digest the auxiliary vector. */
				for (; aux->a_type != AT_NULL; aux++) {
				switch (aux->a_type) {
				case AT_HWCAP:
				cpu_features = (uint32_t)aux->a_un.a_val;
				break;
				case AT_HWCAP2:
				cpu_features2 = (uint32_t)aux->a_un.a_val;
				break;
				}
				}
				}


	/* The entry function. */			/* The entry function. */
	/*			/*
	* First 5 arguments are specified by the PowerPC SVR4 ABI.			* First 5 arguments are specified by the PowerPC SVR4 ABI.
	* The last argument, ps_strings, is a BSD extension.			* The last argument, ps_strings, is a BSD extension.
	*/			*/
	/* ARGSUSED */			/* ARGSUSED */
	void			void
	_start(int argc, char argv, char env,			_start(int argc, char argv, char env,
	const struct Struct_Obj_Entry obj __unused, void (cleanup)(void),			const struct Struct_Obj_Entry obj __unused, void (cleanup)(void),
	struct ps_strings *ps_strings)			struct ps_strings *ps_strings)
	{			{

	handle_argv(argc, argv, env);			handle_argv(argc, argv, env);

	if (ps_strings != (struct ps_strings *)0)			if (ps_strings != (struct ps_strings *)0)
	__ps_strings = ps_strings;			__ps_strings = ps_strings;

	if (&_DYNAMIC != NULL)			if (&_DYNAMIC != NULL)
	atexit(cleanup);			atexit(cleanup);
	else			else {
				init_cpu_features(env);
				process_irelocs();
	_init_tls();			_init_tls();
				}

	#ifdef GCRT			#ifdef GCRT
	atexit(_mcleanup);			atexit(_mcleanup);
	monstartup(&eprol, &etext);			monstartup(&eprol, &etext);
	#endif			#endif

	handle_static_init(argc, argv, env);			handle_static_init(argc, argv, env);
	exit(main(argc, argv, env));			exit(main(argc, argv, env));
	}			}

	#ifdef GCRT			#ifdef GCRT
	__asm__(".text");			__asm__(".text");
	__asm__("eprol:");			__asm__("eprol:");
	__asm__(".previous");			__asm__(".previous");
	#endif			#endif