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u-boot/arch/sh/lib/start.S
Marek Vasut 3223ca99ee sh: Set gd->malloc_base if MALLOC_F_LEN is set
The gd->malloc_base must be set before the C runtime if the MALLOC_F_LEN
is non-zero, otherwise we hit assertion in dlmalloc.c initf_malloc(). So
set it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2020-08-02 19:58:26 +02:00

80 lines
1.5 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
* Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*/
#include <asm-offsets.h>
#include <config.h>
.text
.align 2
.global _start
_start:
mov.l ._lowlevel_init, r0
100: bsrf r0
nop
bsr 1f
nop
1: sts pr, r5
mov.l ._reloc_dst, r4
add #(_start-1b), r5
mov.l ._reloc_dst_end, r6
#ifdef CONFIG_OF_SEPARATE
mov.l ._reloc_size, r0
add r5, r0
add #4, r0
mov.l @r0, r0
swap.b r0, r0
swap.w r0, r0
swap.b r0, r0
add #4, r0
add r0, r6
#endif
2: mov.l @r5+, r1
mov.l r1, @r4
add #4, r4
cmp/hs r6, r4
bf 2b
#ifndef CONFIG_OF_SEPARATE
mov.l ._bss_start, r4
mov.l ._bss_end, r5
mov #0, r1
3: mov.l r1, @r4 /* bss clear */
add #4, r4
cmp/hs r5, r4
bf 3b
#endif
mov.l ._gd_init, r13 /* global data */
mov.l ._stack_init, r15 /* stack */
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
mov.l ._gd_malloc_base, r14
mov.l r15, @r14
#endif
mov.l ._sh_generic_init, r0
jsr @r0
mov #0, r4
loop:
bra loop
.align 2
._lowlevel_init: .long (lowlevel_init - (100b + 4))
._reloc_dst: .long _start
._reloc_dst_end: .long reloc_dst_end
._reloc_size: .long (_end - _start)
._bss_start: .long bss_start
._bss_end: .long bss_end
._gd_init: .long (_start - GENERATED_GBL_DATA_SIZE)
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
._gd_malloc_base: .long (_start - GENERATED_GBL_DATA_SIZE + GD_MALLOC_BASE)
#endif
._stack_init: .long (_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
._sh_generic_init: .long board_init_f