gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

eclair and crash: clean up architecture dependent codes and comply with Linux page_offset_base

Browse Source 
Change-Id: Ie14ceb8bc9d816a9201dddd4020e2c21d6cfd686
Fujitsu: POSTK_DEBUG_ARCH_DEP_34
This commit is contained in:
Balazs Gerofi
2019-12-12 00:17:39 +00:00
committed by Masamichi Takagi
parent 1526237bc6
commit d5de68e97b
8 changed files with 77 additions and 139 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
executer/user/arch/x86_64/arch-eclair.c
View File

@@ -3,6 +3,8 @@
#include <stdio.h>
#include <arch-eclair.h>
unsigned long linux_page_offset = 0xffff880000000000UL;
int print_kregs(char *rbp, size_t rbp_size, const struct arch_kregs *kregs)
{
int i, ret, total = 0;
@@ -100,16 +102,15 @@ int print_kregs(char *rbp, size_t rbp_size, const struct arch_kregs *kregs)
return total;
}
#ifdef POSTK_DEBUG_ARCH_DEP_34
static uintptr_t virt_to_phys(uintptr_t va)
uintptr_t virt_to_phys(uintptr_t va)
{
extern uintptr_t kernel_base;
if (va >= MAP_KERNEL_START) {
return va - MAP_KERNEL_START + kernel_base;
}
else if (va >= LINUX_PAGE_OFFSET) {
return va - LINUX_PAGE_OFFSET;
else if (va >= linux_page_offset) {
return va - linux_page_offset;
}
else if (va >= MAP_FIXED_START) {
return va - MAP_FIXED_START;
@@ -120,5 +121,16 @@ static uintptr_t virt_to_phys(uintptr_t va)
return NOPHYS;
} /* virt_to_phys() */
#endif /* POSTK_DEBUG_ARCH_DEP_34 */
int arch_setup_constants(void)
{
if (read_symbol_64("linux_page_offset_base",
&linux_page_offset) != 0) {
fprintf(stderr, "error: obtaining Linux page offset\n");
return 1;
}
printf("x86 linux_page_offset: 0x%lx\n", linux_page_offset);
return 0;
}