Thread: Page fault despite doing as tutorial says?

Thanks for the links guys, most of them I have already had a look through XD. I have gotten rid of almost all the implicit declarations ( except copy_page_physical as it is in the asm file ). But there are still some I can't shake, so I'll update the OP with the new errors.

I guess I can't update it so I'll post them here ( hopefully it'll work ):

Code:

source/main.c: In function ‘main’:
source/main.c:81:4: warning: pointer targets in passing argument 4 of ‘read_fs’ differ in signedness
headers/fs.h:58:8: note: expected ‘u8int *’ but argument is of type ‘char *’
source/common.c: In function ‘strcat’:
source/common.c:81:22: warning: operation on ‘dest’ may be undefined
source/common.c: In function ‘panic’:
source/common.c:106:5: warning: passing argument 1 of ‘monitor_write’ discards qualifiers from pointer target type
headers/monitor.h:16:6: note: expected ‘char *’ but argument is of type ‘const char *’
source/common.c:108:5: warning: passing argument 1 of ‘monitor_write’ discards qualifiers from pointer target type
headers/monitor.h:16:6: note: expected ‘char *’ but argument is of type ‘const char *’
source/common.c: In function ‘panic_assert’:
source/common.c:122:5: warning: passing argument 1 of ‘monitor_write’ discards qualifiers from pointer target type
headers/monitor.h:16:6: note: expected ‘char *’ but argument is of type ‘const char *’
source/common.c:124:5: warning: passing argument 1 of ‘monitor_write’ discards qualifiers from pointer target type
headers/monitor.h:16:6: note: expected ‘char *’ but argument is of type ‘const char *’
source/common.c: In function ‘strcpy’:
source/common.c:73:1: warning: control reaches end of non-void function
source/descriptor_tables.c: In function ‘init_descriptor_tables’:
source/descriptor_tables.c:42:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘void (* (*)[])(struct registers_t *)’
source/descriptor_tables.c: In function ‘write_tss’:
source/descriptor_tables.c:86:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct tss_entry_t *’
source/descriptor_tables.c: In function ‘init_idt’:
source/descriptor_tables.c:111:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct idt_entry_t (*)[256]’
source/kheap.c: In function ‘expand’:
source/kheap.c:76:5: warning: suggest parentheses around comparison in operand of ‘&’
source/kheap.c: In function ‘find_smallest_hole’:
source/kheap.c:139:13: warning: suggest parentheses around comparison in operand of ‘&’
source/kheap.c: In function ‘create_heap’:
source/kheap.c:177:5: warning: suggest parentheses around comparison in operand of ‘&’
source/paging.c: In function ‘initialise_paging’:
source/paging.c:119:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘u32int *’
source/paging.c:124:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct page_directory_t *’
source/paging.c:122:12: warning: unused variable ‘phys’
source/paging.c: In function ‘get_page’:
source/paging.c:195:9: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct page_table_t *’
source/paging.c: In function ‘page_fault’:
source/paging.c:218:9: warning: unused variable ‘id’
source/paging.c: In function ‘clone_table’:
source/paging.c:240:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct page_table_t *’
source/paging.c:258:2: warning: implicit declaration of function ‘copy_page_physical’
source/paging.c: In function ‘clone_directory’:
source/paging.c:269:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘struct page_directory_t *’
source/paging.c: At top level:
source/paging.c:45:15: warning: ‘test_frame’ defined but not used
source/paging.c: In function ‘first_frame’:
source/paging.c:72:1: warning: control reaches end of non-void function
source/ordered_array.c: In function ‘create_ordered_array’:
source/ordered_array.c:17:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘void **’
source/ordered_array.c: In function ‘place_ordered_array’:
source/ordered_array.c:28:5: warning: passing argument 1 of ‘memset’ from incompatible pointer type
headers/common.h:21:6: note: expected ‘u8int *’ but argument is of type ‘void **’
source/initrd.c: In function ‘initialise_initrd’:
source/initrd.c:105:9: warning: passing argument 2 of ‘strcpy’ from incompatible pointer type
headers/common.h:23:6: note: expected ‘const char *’ but argument is of type ‘s8int (*)[64]’

I just can't shake the errors XD any files you need just say and I'll post 'em

Originally Posted by stahta01

Updated source is supposed to be here somewhere jamesm-tutorials - JamesM's kernel development tutorials - Google Project Hosting

The code you using has KNOWN bugs in it.

Per thread: OSDev.org • View topic - Are JamesM's tutorials still being maintained?

I strongly recommend using the right forum for OS Dev for your next question on this topic.OSDev.org • Index page

Tim S.

Thanks for finding that! Shame he isn't maintaining the original tutorial though. I shouldn't have much of a problem with the code now XD

Once again thanks.