| /* |
| * Copyright (c) 2008 Travis Geiselbrecht |
| * |
| * Copyright (c) 2009-2014, The Linux Foundation. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| #include <compiler.h> |
| #include <debug.h> |
| #include <string.h> |
| #include <app.h> |
| #include <arch.h> |
| #include <platform.h> |
| #include <target.h> |
| #include <lib/heap.h> |
| #include <kernel/thread.h> |
| #include <kernel/timer.h> |
| #include <kernel/dpc.h> |
| #include <boot_stats.h> |
| |
| extern void *__ctor_list; |
| extern void *__ctor_end; |
| extern int __bss_start; |
| extern int _end; |
| |
| static int bootstrap2(void *arg); |
| |
| #if (ENABLE_NANDWRITE) |
| void bootstrap_nandwrite(void); |
| #endif |
| |
| static void call_constructors(void) |
| { |
| void **ctor; |
| |
| ctor = &__ctor_list; |
| while(ctor != &__ctor_end) { |
| void (*func)(void); |
| |
| func = (void (*)())*ctor; |
| |
| func(); |
| ctor++; |
| } |
| } |
| |
| /* called from crt0.S */ |
| void kmain(void) __NO_RETURN __EXTERNALLY_VISIBLE; |
| void kmain(void) |
| { |
| // get us into some sort of thread context |
| thread_init_early(); |
| |
| // early arch stuff |
| arch_early_init(); |
| |
| // do any super early platform initialization |
| platform_early_init(); |
| |
| // do any super early target initialization |
| target_early_init(); |
| |
| dprintf(INFO, "welcome to lk\n\n"); |
| bs_set_timestamp(BS_BL_START); |
| |
| // deal with any static constructors |
| dprintf(SPEW, "calling constructors\n"); |
| call_constructors(); |
| |
| // bring up the kernel heap |
| dprintf(SPEW, "initializing heap\n"); |
| heap_init(); |
| |
| __stack_chk_guard_setup(); |
| |
| // initialize the threading system |
| dprintf(SPEW, "initializing threads\n"); |
| thread_init(); |
| |
| // initialize the dpc system |
| dprintf(SPEW, "initializing dpc\n"); |
| dpc_init(); |
| |
| // initialize kernel timers |
| dprintf(SPEW, "initializing timers\n"); |
| timer_init(); |
| |
| #if (!ENABLE_NANDWRITE) |
| // create a thread to complete system initialization |
| dprintf(SPEW, "creating bootstrap completion thread\n"); |
| thread_resume(thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE)); |
| |
| // enable interrupts |
| exit_critical_section(); |
| |
| // become the idle thread |
| thread_become_idle(); |
| #else |
| bootstrap_nandwrite(); |
| #endif |
| } |
| |
| int main(void); |
| |
| static int bootstrap2(void *arg) |
| { |
| dprintf(SPEW, "top of bootstrap2()\n"); |
| |
| arch_init(); |
| |
| // XXX put this somewhere else |
| #if WITH_LIB_BIO |
| bio_init(); |
| #endif |
| #if WITH_LIB_FS |
| fs_init(); |
| #endif |
| |
| // initialize the rest of the platform |
| dprintf(SPEW, "initializing platform\n"); |
| platform_init(); |
| |
| // initialize the target |
| dprintf(SPEW, "initializing target\n"); |
| target_init(); |
| |
| dprintf(SPEW, "calling apps_init()\n"); |
| apps_init(); |
| |
| return 0; |
| } |
| |
| #if (ENABLE_NANDWRITE) |
| void bootstrap_nandwrite(void) |
| { |
| dprintf(SPEW, "top of bootstrap2()\n"); |
| |
| arch_init(); |
| |
| // initialize the rest of the platform |
| dprintf(SPEW, "initializing platform\n"); |
| platform_init(); |
| |
| // initialize the target |
| dprintf(SPEW, "initializing target\n"); |
| target_init(); |
| |
| dprintf(SPEW, "calling nandwrite_init()\n"); |
| nandwrite_init(); |
| |
| return 0; |
| } |
| #endif |