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ARM: clear BSS upon boot

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This commit is contained in:
Thomas Veerman 2013-01-17 13:35:07 +01:00
parent c96cd5e1a0
commit 1a60a84cb7
1 changed files with 6 additions and 0 deletions
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6
kernel/arch/earm/pre_init.c
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@ -38,6 +38,9 @@ static void setup_mbi(multiboot_info_t *mbi);
/* Kernel may use memory */ /* Kernel may use memory */
int kernel_may_alloc = 1; int kernel_may_alloc = 1;
extern u32_t _edata;
extern u32_t _end;
static int mb_set_param(char *bigbuf, char *name, char *value, kinfo_t *cbi) static int mb_set_param(char *bigbuf, char *name, char *value, kinfo_t *cbi)
{ {
char *p = bigbuf; char *p = bigbuf;
@ -256,6 +259,9 @@ void get_parameters(u32_t ebx, kinfo_t *cbi)
kinfo_t *pre_init(u32_t magic, u32_t ebx) kinfo_t *pre_init(u32_t magic, u32_t ebx)
{ {
/* Clear BSS */
memset(&_edata, 0, (u32_t)&_end - (u32_t)&_edata);
/* Get our own copy boot params pointed to by ebx. /* Get our own copy boot params pointed to by ebx.
* Here we find out whether we should do serial output. * Here we find out whether we should do serial output.
*/ */