169 lines
3.8 KiB
C
169 lines
3.8 KiB
C
/*
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* Copyright (c) 2008 Travis Geiselbrecht
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*
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* Copyright (c) 2009-2013, The Linux Foundation. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <compiler.h>
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#include <debug.h>
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#include <string.h>
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#include <app.h>
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#include <arch.h>
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#include <platform.h>
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#include <target.h>
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#include <lib/heap.h>
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#include <kernel/thread.h>
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#include <kernel/timer.h>
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#include <kernel/dpc.h>
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#include <boot_stats.h>
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extern void *__ctor_list;
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extern void *__ctor_end;
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extern int __bss_start;
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extern int _end;
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static int bootstrap2(void *arg);
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#if (ENABLE_NANDWRITE)
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void bootstrap_nandwrite(void);
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#endif
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static void call_constructors(void)
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{
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void **ctor;
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ctor = &__ctor_list;
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while(ctor != &__ctor_end) {
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void (*func)(void);
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func = (void (*)())*ctor;
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func();
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ctor++;
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}
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}
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/* called from crt0.S */
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void kmain(void) __NO_RETURN __EXTERNALLY_VISIBLE;
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void kmain(void)
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{
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// get us into some sort of thread context
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thread_init_early();
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// early arch stuff
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arch_early_init();
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// do any super early platform initialization
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platform_early_init();
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// do any super early target initialization
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target_early_init();
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dprintf(INFO, "welcome to lk\n\n");
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bs_set_timestamp(BS_BL_START);
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// deal with any static constructors
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dprintf(SPEW, "calling constructors\n");
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call_constructors();
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// bring up the kernel heap
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dprintf(SPEW, "initializing heap\n");
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heap_init();
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// initialize the threading system
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dprintf(SPEW, "initializing threads\n");
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thread_init();
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// initialize the dpc system
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dprintf(SPEW, "initializing dpc\n");
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dpc_init();
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// initialize kernel timers
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dprintf(SPEW, "initializing timers\n");
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timer_init();
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#if (!ENABLE_NANDWRITE)
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// create a thread to complete system initialization
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dprintf(SPEW, "creating bootstrap completion thread\n");
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thread_resume(thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE));
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// enable interrupts
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exit_critical_section();
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// become the idle thread
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thread_become_idle();
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#else
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bootstrap_nandwrite();
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#endif
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}
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int main(void);
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static int bootstrap2(void *arg)
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{
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dprintf(SPEW, "top of bootstrap2()\n");
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arch_init();
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// XXX put this somewhere else
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#if WITH_LIB_BIO
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bio_init();
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#endif
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#if WITH_LIB_FS
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fs_init();
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#endif
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// initialize the rest of the platform
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dprintf(SPEW, "initializing platform\n");
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platform_init();
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// initialize the target
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dprintf(SPEW, "initializing target\n");
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target_init();
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dprintf(SPEW, "calling apps_init()\n");
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apps_init();
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return 0;
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}
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#if (ENABLE_NANDWRITE)
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void bootstrap_nandwrite(void)
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{
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dprintf(SPEW, "top of bootstrap2()\n");
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arch_init();
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// initialize the rest of the platform
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dprintf(SPEW, "initializing platform\n");
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platform_init();
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// initialize the target
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dprintf(SPEW, "initializing target\n");
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target_init();
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dprintf(SPEW, "calling nandwrite_init()\n");
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nandwrite_init();
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return 0;
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}
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#endif
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