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sys/amd64/amd64/db_interface.c
| Show All 31 Lines | |||||
| */ | */ | ||||
| #include <sys/param.h> | #include <sys/param.h> | ||||
| #include <sys/systm.h> | #include <sys/systm.h> | ||||
| #include <sys/kdb.h> | #include <sys/kdb.h> | ||||
| #include <sys/pcpu.h> | #include <sys/pcpu.h> | ||||
| #include <machine/cpufunc.h> | #include <machine/cpufunc.h> | ||||
| #include <machine/md_var.h> | |||||
| #include <machine/specialreg.h> | #include <machine/specialreg.h> | ||||
| #include <ddb/ddb.h> | #include <ddb/ddb.h> | ||||
| /* | /* | ||||
| * Read bytes from kernel address space for debugger. | * Read bytes from kernel address space for debugger. | ||||
| */ | */ | ||||
| int | int | ||||
| Show All 22 Lines | |||||
| * memory. | * memory. | ||||
| */ | */ | ||||
| int | int | ||||
| db_write_bytes(vm_offset_t addr, size_t size, char *data) | db_write_bytes(vm_offset_t addr, size_t size, char *data) | ||||
| { | { | ||||
| jmp_buf jb; | jmp_buf jb; | ||||
| void *prev_jb; | void *prev_jb; | ||||
| char *dst; | char *dst; | ||||
| u_long cr0save; | bool old_wp; | ||||
| int ret; | int ret; | ||||
| cr0save = rcr0(); | old_wp = false; | ||||
| prev_jb = kdb_jmpbuf(jb); | prev_jb = kdb_jmpbuf(jb); | ||||
| ret = setjmp(jb); | ret = setjmp(jb); | ||||
| if (ret == 0) { | if (ret == 0) { | ||||
| load_cr0(cr0save & ~CR0_WP); | old_wp = disable_wp(); | ||||
| dst = (char *)addr; | dst = (char *)addr; | ||||
| while (size-- > 0) | while (size-- > 0) | ||||
| *dst++ = *data++; | *dst++ = *data++; | ||||
| } | } | ||||
| load_cr0(cr0save); | restore_wp(old_wp); | ||||
| (void)kdb_jmpbuf(prev_jb); | (void)kdb_jmpbuf(prev_jb); | ||||
| return (ret); | return (ret); | ||||
| } | } | ||||
| void | void | ||||
| db_show_mdpcpu(struct pcpu *pc) | db_show_mdpcpu(struct pcpu *pc) | ||||
| { | { | ||||
| db_printf("curpmap = %p\n", pc->pc_curpmap); | db_printf("curpmap = %p\n", pc->pc_curpmap); | ||||
| db_printf("tssp = %p\n", pc->pc_tssp); | db_printf("tssp = %p\n", pc->pc_tssp); | ||||
| db_printf("commontssp = %p\n", pc->pc_commontssp); | db_printf("commontssp = %p\n", pc->pc_commontssp); | ||||
| db_printf("rsp0 = 0x%lx\n", pc->pc_rsp0); | db_printf("rsp0 = 0x%lx\n", pc->pc_rsp0); | ||||
| db_printf("gs32p = %p\n", pc->pc_gs32p); | db_printf("gs32p = %p\n", pc->pc_gs32p); | ||||
| db_printf("ldt = %p\n", pc->pc_ldt); | db_printf("ldt = %p\n", pc->pc_ldt); | ||||
| db_printf("tss = %p\n", pc->pc_tss); | db_printf("tss = %p\n", pc->pc_tss); | ||||
| } | } | ||||