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MFp4: teach the KB920x bits how to know where the ELF trampoline puts the

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strtab and the symtab.
This commit is contained in:
Olivier Houchard 2006-03-22 21:16:51 +00:00
parent eea877f42d
commit a1de0396bd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=157024
1 changed files with 24 additions and 3 deletions
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27
sys/arm/at91/kb920x_machdep.c
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@ -195,6 +195,10 @@ initarm(void *arg, void *arg2)
int i = 0;
uint32_t fake_preload[35];
uint32_t memsize = 32 * 1024 * 1024;
vm_offset_t lastaddr;
#ifdef DDB
vm_offset_t zstart = 0, zend = 0;
#endif
i = 0;
@ -215,6 +219,23 @@ initarm(void *arg, void *arg2)
fake_preload[i++] = MODINFO_SIZE;
fake_preload[i++] = sizeof(uint32_t);
fake_preload[i++] = (uint32_t)&end - KERNBASE;
#ifdef DDB
if (*(uint32_t *)KERNVIRTADDR == MAGIC_TRAMP_NUMBER) {
fake_preload[i++] = MODINFO_METADATA|MODINFOMD_SSYM;
fake_preload[i++] = sizeof(vm_offset_t);
fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 4);
fake_preload[i++] = MODINFO_METADATA|MODINFOMD_ESYM;
fake_preload[i++] = sizeof(vm_offset_t);
fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 8);
lastaddr = *(uint32_t *)(KERNVIRTADDR + 8);
zend = lastaddr;
zstart = *(uint32_t *)(KERNVIRTADDR + 4);
ksym_start = zstart;
ksym_end = zend;
} else
#endif
lastaddr = (vm_offset_t)&end;
fake_preload[i++] = 0;
fake_preload[i] = 0;
preload_metadata = (void *)fake_preload;
@ -224,7 +245,7 @@ initarm(void *arg, void *arg2)
PCPU_SET(curthread, &thread0);
#define KERNEL_TEXT_BASE (KERNBASE)
freemempos = ((vm_offset_t)&end + PAGE_MASK) & ~PAGE_MASK;
freemempos = (lastaddr + PAGE_MASK) & ~PAGE_MASK;
/* Define a macro to simplify memory allocation */
#define valloc_pages(var, np) \
alloc_pages((var).pv_va, (np)); \
@ -280,9 +301,9 @@ initarm(void *arg, void *arg2)
pmap_link_l2pt(l1pagetable, KERNBASE + i * 0x100000,
&kernel_pt_table[KERNEL_PT_KERN + i]);
pmap_map_chunk(l1pagetable, KERNBASE, KERNPHYSADDR,
(((uint32_t)(&end) - KERNBASE) + PAGE_SIZE) & ~(PAGE_SIZE - 1),
(((uint32_t)(lastaddr) - KERNBASE) + PAGE_SIZE) & ~(PAGE_SIZE - 1),
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
afterkern = round_page(((vm_offset_t)&end + L1_S_SIZE) & ~(L1_S_SIZE
afterkern = round_page((lastaddr + L1_S_SIZE) & ~(L1_S_SIZE
- 1));
for (i = 0; i < KERNEL_PT_AFKERNEL_NUM; i++) {
pmap_link_l2pt(l1pagetable, afterkern + i * 0x00100000,