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https://github.com/smaeul/u-boot.git
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e05e5de7fa
Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
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*
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* This program is used to generate definitions needed by
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* assembly language modules.
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*
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* We use the technique used in the OSF Mach kernel code:
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* generate asm statements containing #defines,
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* compile this file to assembler, and then extract the
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* #defines from the assembly-language output.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <common.h>
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#include <linux/kbuild.h>
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int main(void)
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{
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/* Round up to make sure size gives nice stack alignment */
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DEFINE(GENERATED_GBL_DATA_SIZE,
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(sizeof(struct global_data) + 15) & ~15);
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DEFINE(GENERATED_BD_INFO_SIZE,
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(sizeof(struct bd_info) + 15) & ~15);
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DEFINE(GD_SIZE, sizeof(struct global_data));
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DEFINE(GD_BD, offsetof(struct global_data, bd));
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#if defined(CONFIG_ARM)
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DEFINE(GD_RELOCADDR, offsetof(struct global_data, relocaddr));
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DEFINE(GD_RELOC_OFF, offsetof(struct global_data, reloc_off));
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DEFINE(GD_START_ADDR_SP, offsetof(struct global_data, start_addr_sp));
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#endif
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return 0;
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}
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