diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/amd64/db_interface.c | 12 | ||||
| -rw-r--r-- | sys/i386/i386/db_interface.c | 12 |
2 files changed, 10 insertions, 14 deletions
diff --git a/sys/amd64/amd64/db_interface.c b/sys/amd64/amd64/db_interface.c index b05285a..513c97e 100644 --- a/sys/amd64/amd64/db_interface.c +++ b/sys/amd64/amd64/db_interface.c @@ -23,7 +23,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: db_interface.c,v 1.36 1997/08/07 05:15:46 dyson Exp $ + * $Id: db_interface.c,v 1.37 1997/10/27 17:23:12 bde Exp $ */ /* @@ -41,7 +41,6 @@ #endif #include <vm/vm.h> -#include <vm/vm_param.h> #include <vm/pmap.h> #include <ddb/ddb.h> @@ -247,17 +246,16 @@ db_write_bytes(addr, size, data) db_nofault = &db_jmpbuf; - if (addr >= VM_MIN_KERNEL_ADDRESS && - addr <= round_page((vm_offset_t)&etext)) { + if (addr > trunc_page((vm_offset_t)btext) - size && + addr < round_page((vm_offset_t)etext)) { ptep0 = pmap_pte(kernel_pmap, addr); oldmap0 = *ptep0; *ptep0 |= PG_RW; - if ((*ptep0 & PG_PS) == 0) { + /* Map another page if the data crosses a page boundary. */ + if ((*ptep0 & PG_PS) == 0) { addr1 = trunc_page(addr + size - 1); - - /* Map another page if the data crosses a page boundary. */ if (trunc_page(addr) != addr1) { ptep1 = pmap_pte(kernel_pmap, addr1); oldmap1 = *ptep1; diff --git a/sys/i386/i386/db_interface.c b/sys/i386/i386/db_interface.c index b05285a..513c97e 100644 --- a/sys/i386/i386/db_interface.c +++ b/sys/i386/i386/db_interface.c @@ -23,7 +23,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: db_interface.c,v 1.36 1997/08/07 05:15:46 dyson Exp $ + * $Id: db_interface.c,v 1.37 1997/10/27 17:23:12 bde Exp $ */ /* @@ -41,7 +41,6 @@ #endif #include <vm/vm.h> -#include <vm/vm_param.h> #include <vm/pmap.h> #include <ddb/ddb.h> @@ -247,17 +246,16 @@ db_write_bytes(addr, size, data) db_nofault = &db_jmpbuf; - if (addr >= VM_MIN_KERNEL_ADDRESS && - addr <= round_page((vm_offset_t)&etext)) { + if (addr > trunc_page((vm_offset_t)btext) - size && + addr < round_page((vm_offset_t)etext)) { ptep0 = pmap_pte(kernel_pmap, addr); oldmap0 = *ptep0; *ptep0 |= PG_RW; - if ((*ptep0 & PG_PS) == 0) { + /* Map another page if the data crosses a page boundary. */ + if ((*ptep0 & PG_PS) == 0) { addr1 = trunc_page(addr + size - 1); - - /* Map another page if the data crosses a page boundary. */ if (trunc_page(addr) != addr1) { ptep1 = pmap_pte(kernel_pmap, addr1); oldmap1 = *ptep1; |
