86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <elf.h>
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#include <asm/page.h>
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#include "pthread_internal.h"
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#include "atexit.h"
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#include "libc_init_common.h"
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#include <bionic_tls.h>
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#include <errno.h>
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extern unsigned __get_sp(void);
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extern pid_t gettid(void);
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char* __progname;
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char **environ;
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/* from asm/page.h */
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unsigned int __page_size = PAGE_SIZE;
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unsigned int __page_shift = PAGE_SHIFT;
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int __system_properties_init(void);
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void __libc_init_common(uintptr_t *elfdata)
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{
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int argc = *elfdata;
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char** argv = (char**)(elfdata + 1);
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char** envp = argv + argc + 1;
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pthread_attr_t thread_attr;
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static pthread_internal_t thread;
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static void* tls_area[BIONIC_TLS_SLOTS];
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/* setup pthread runtime and main thread descriptor */
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unsigned stacktop = (__get_sp() & ~(PAGE_SIZE - 1)) + PAGE_SIZE;
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unsigned stacksize = 128 * 1024;
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unsigned stackbottom = stacktop - stacksize;
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pthread_attr_init(&thread_attr);
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pthread_attr_setstack(&thread_attr, (void*)stackbottom, stacksize);
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_init_thread(&thread, gettid(), &thread_attr, (void*)stackbottom);
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__init_tls(tls_area, &thread);
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/* clear errno - requires TLS area */
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errno = 0;
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/* set program name */
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__progname = argv[0] ? argv[0] : "<unknown>";
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/* setup environment pointer */
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environ = envp;
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/* setup system properties - requires environment */
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__system_properties_init();
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}
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