upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-06-08 16:22:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

To avoid problems, invalidate the data cache and disable the MMU once

Browse source 
we're done uncompressing the kernel.
This commit is contained in:
Olivier Houchard 2006-05-30 21:13:47 +00:00
parent 44d6e87b07
commit b64b87c8bd
2 changed files with 38 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
sys/arm/arm/elf_trampoline.c
View file

@ -31,6 +31,7 @@ __FBSDID("$FreeBSD$");
#include <sys/inflate.h>
#include <machine/elf.h>
#include <machine/pte.h>
#include <machine/cpufunc.h>
#include <stdlib.h>
@ -44,6 +45,24 @@ void __start(void);
#define GZ_HEAD 0xa
#ifdef CPU_ARM7TDMI
#define cpu_idcache_wbinv_all arm7tdmi_cache_flushID
#elif defined(CPU_ARM8)
#define cpu_idcache_wbinv_all arm8_cache_purgeID
#elif defined(CPU_ARM9)
#define cpu_idcache_wbinv_all arm9_dcache_wbinv_all
#elif defined(CPU_ARM10)
#define cpu_idcache_wbinv_all arm10_idcache_wbinv_all
#elif defined(CPU_SA110) || defined(CPU_SA1110) || defined(CPU_SA1100) || \
defined(CPU_IXP12X0)
#define cpu_idcache_wbinv_all sa1_cache_purgeID
#elif defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425)
#define cpu_idcache_wbinv_all xscale_cache_purgeID
#endif
int arm_pdcache_line_size = 32;
int block_userspace_access = 0;
static __inline void *
memcpy(void *dst, const void *src, int len)
{
@ -160,7 +179,7 @@ putstr(char *dummy)
static int
input(void *dummy)
{
if ((size_t)(i_input - orig_input) >= KERNSIZE) {
if ((size_t)(i_input - orig_input) >= KERNCOMPSIZE) {
return (GZ_EOF);
}
return *i_input++;
@ -383,7 +402,7 @@ void
__start(void)
{
void *curaddr;
void *dst;
void *dst, *altdst;
char *kernel = (char *)&kernel_start;
__asm __volatile("mov %0, pc" :
@ -393,11 +412,22 @@ __start(void)
if (*kernel == 0x1f && kernel[1] == 0x8b) {
int pt_addr = (((int)&_end + KERNSIZE + 0x100) &
~(L1_TABLE_SIZE - 1)) + L1_TABLE_SIZE;
setup_pagetables(pt_addr, (vm_paddr_t)curaddr,
(vm_paddr_t)curaddr + 0x10000000);
/* Gzipped kernel */
dst = inflate_kernel(kernel, &_end);
kernel = (char *)&_end;
altdst = 4 + load_kernel((unsigned int)kernel,
(unsigned int)curaddr,
(unsigned int)&func_end , 0);
if (altdst > dst)
dst = altdst;
cpu_idcache_wbinv_all();
__asm __volatile("mrc p15, 0, %0, c1, c0, 0\n"
"bic %0, %0, #1\n" /* MMU_ENABLE */
"mcr p15, 0, %0, c1, c0, 0\n"
: "=r" (pt_addr));
} else
#endif
dst = 4 + load_kernel((unsigned int)&kernel_start,

8
sys/conf/Makefile.arm
View file

@ -59,6 +59,10 @@ SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
${KERNEL_KO}.bin; \
rm ${FULLKERNEL}.noheader
FILES_CPU_FUNC = $S/$M/$M/cpufunc_asm_arm7tdmi.S \
$S/$M/$M/cpufunc_asm_arm8.S $S/$M/$M/cpufunc_asm_arm9.S \
$S/$M/$M/cpufunc_asm_sa1.S $S/$M/$M/cpufunc_asm_arm10.S \
$S/$M/$M/cpufunc_asm_xscale.S
trampoline: ${KERNEL_KO}.tramp
${KERNEL_KO}.tramp: ${KERNEL_KO}
echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h
@ -85,10 +89,10 @@ ${KERNEL_KO}.tramp: ${KERNEL_KO}
${CC} -O2 -DKZIP -I. -c $S/kern/inflate.c -o inflate-tramp.o
${CC} -O -nostdlib -I. -Xlinker -T -Xlinker ldscript.$M.tramp \
-DKZIP $S/$M/$M/elf_trampoline.c inflate-tramp.o $S/$M/$M/inckern.S \
-o ${KERNEL_KO}.gz.tramp
${FILES_CPU_FUNC} -o ${KERNEL_KO}.gz.tramp
${CC} -O -nostdlib -I. -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
-DKZIP $S/$M/$M/elf_trampoline.c inflate-tramp.o $S/$M/$M/inckern.S \
-o ${KERNEL_KO}.tramp.noheader
${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp.noheader
${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
${KERNEL_KO}.gz.tramp.bin
rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \