X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..060df5ea7c632b1ac8cc8aac1fb59758165c2084:/osfmk/ppc/db_interface.c diff --git a/osfmk/ppc/db_interface.c b/osfmk/ppc/db_interface.c index 229f4f5ac..3109d1b5e 100644 --- a/osfmk/ppc/db_interface.c +++ b/osfmk/ppc/db_interface.c @@ -1,29 +1,34 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ -#include #include #include #include @@ -37,16 +42,17 @@ #include #include -#include #include #include #include #include #include +#include #include #include #include #include +#include /* for switch_to_serial_console */ #include #include @@ -54,6 +60,9 @@ #include #include #include +#include /* for halt_all_cpus() */ +#include +#include #include #include @@ -68,8 +77,8 @@ struct savearea *ppc_last_saved_statep; struct savearea ppc_nested_saved_state; unsigned ppc_last_kdb_sp; +db_regs_t ddb_regs; /* register state */ -extern int debugger_active[NCPUS]; /* Debugger active on CPU */ extern int debugger_cpu; /* Current cpu running debugger */ int db_all_set_up = 0; @@ -89,7 +98,6 @@ struct int_regs { struct ppc_interrupt_state *is; }; -extern char * trap_type[]; extern int TRAP_TYPES; /* @@ -115,11 +123,6 @@ extern void kdbprinttrap( int code, int *pc, int sp); -extern int db_user_to_kernel_address( - task_t task, - vm_offset_t addr, - unsigned *kaddr, - int flag); extern void db_write_bytes_user_space( vm_offset_t addr, int size, @@ -148,8 +151,6 @@ void kdp_register_send_receive(void) {} #endif extern jmp_buf_t *db_recover; -spl_t saved_ipl[NCPUS]; /* just to know what IPL was before trap */ -struct savearea *saved_state[NCPUS]; /* * kdb_trap - field a TRACE or BPT trap @@ -182,7 +183,7 @@ kdb_trap( db_printf("type %d", type); else db_printf("%s", trap_type[type]); - db_printf(" trap, pc = %x\n", + db_printf(" trap, pc = %llx\n", regs->save_srr0); db_error(""); /*NOTREACHED*/ @@ -190,7 +191,7 @@ kdb_trap( kdbprinttrap(type, code, (int *)®s->save_srr0, regs->save_r1); } - saved_state[cpu_number()] = regs; + getPerProc()->db_saved_state = regs; ppc_last_saved_statep = regs; ppc_last_kdb_sp = (unsigned) &type; @@ -214,13 +215,12 @@ kdb_trap( (db_get_task_value(regs->save_srr0, BKPT_SIZE, FALSE, - db_target_space(current_act(), + db_target_space(current_thread(), trap_from_user)) == BKPT_INST)) regs->save_srr0 += BKPT_SIZE; -kdb_exit: - saved_state[cpu_number()] = 0; + getPerProc()->db_saved_state = 0; switch_to_old_console(previous_console_device); } @@ -250,68 +250,21 @@ kdbprinttrap( /* * */ -vm_offset_t db_vtophys( - pmap_t pmap, - vm_offset_t va) +static addr64_t +db_vtophys(pmap_t pmap, vm_offset_t va) { - register mapping *mp; - register vm_offset_t pa; - - pa = (vm_offset_t)LRA(pmap->space,(void *)va); - - if (pa != 0) - return(pa); + ppnum_t pp; + addr64_t pa; - mp = hw_lock_phys_vir(pmap->space, va); - if((unsigned int)mp&1) { - return 0; - } - - if(!mp) { /* If it was not a normal page */ - pa = hw_cvp_blk(pmap, va); /* Try to convert odd-sized page (returns 0 if not found) */ - return pa; /* Return physical address */ - } + pp = pmap_find_phys(pmap, (addr64_t)va); - mp = hw_cpv(mp); /* Convert to virtual address */ - - if(!mp->physent) { - pa = (vm_offset_t)((mp->PTEr & -PAGE_SIZE) | ((unsigned int)va & (PAGE_SIZE-1))); - } else { - pa = (vm_offset_t)((mp->physent->pte1 & -PAGE_SIZE) | ((unsigned int)va & (PAGE_SIZE-1))); - hw_unlock_bit((unsigned int *)&mp->physent->phys_link, PHYS_LOCK); - } + if (pp == 0) return(0); /* Couldn't find it */ + + pa = ((addr64_t)pp << 12) | (addr64_t)(va & 0xFFF); /* Get physical address */ return(pa); } -int -db_user_to_kernel_address( - task_t task, - vm_offset_t addr, - unsigned *kaddr, - int flag) -{ - unsigned int sr_val, raddr; - - raddr = (unsigned int)db_vtophys(task->map->pmap, trunc_page(addr)); /* Get the real address */ - - if (!raddr) { - if (flag) { - db_printf("\nno memory is assigned to address %08x\n", addr); - db_error(0); - /* NOTREACHED */ - } - return -1; - } - sr_val = SEG_REG_PROT | task->map->pmap->space - | ((addr >> 8) & 0x00F00000); - - mtsr(SR_COPYIN_NUM, sr_val); - sync(); - *kaddr = (addr & 0x0fffffff) | (SR_COPYIN_NUM << 28); - return(0); -} - /* * Read bytes from task address space for debugger. */ @@ -323,8 +276,8 @@ db_read_bytes( task_t task) { int n,max; - unsigned phys_dst; - unsigned phys_src; + addr64_t phys_dst; + addr64_t phys_src; pmap_t pmap; while (size > 0) { @@ -333,16 +286,15 @@ db_read_bytes( else pmap = kernel_pmap; - phys_src = (unsigned int)db_vtophys(pmap, trunc_page(addr)); + phys_src = db_vtophys(pmap, (vm_offset_t)addr); if (phys_src == 0) { db_printf("\nno memory is assigned to src address %08x\n", addr); db_error(0); /* NOTREACHED */ } - phys_src = phys_src| (addr & page_mask); - phys_dst = (unsigned int)db_vtophys(kernel_pmap, trunc_page(data)); + phys_dst = db_vtophys(kernel_pmap, (vm_offset_t)data); if (phys_dst == 0) { db_printf("\nno memory is assigned to dst address %08x\n", data); @@ -350,22 +302,20 @@ db_read_bytes( /* NOTREACHED */ } - phys_dst = phys_dst | (((vm_offset_t) data) & page_mask); - /* don't over-run any page boundaries - check src range */ - max = ppc_round_page(phys_src) - phys_src; + max = round_page_64(phys_src + 1) - phys_src; if (max > size) max = size; /* Check destination won't run over boundary either */ - n = ppc_round_page(phys_dst) - phys_dst; - if (n < max) - max = n; + n = round_page_64(phys_dst + 1) - phys_dst; + + if (n < max) max = n; size -= max; addr += max; phys_copy(phys_src, phys_dst, max); /* resync I+D caches */ - sync_cache(phys_dst, max); + sync_cache64(phys_dst, max); phys_src += max; phys_dst += max; @@ -383,13 +333,13 @@ db_write_bytes( task_t task) { int n,max; - unsigned phys_dst; - unsigned phys_src; + addr64_t phys_dst; + addr64_t phys_src; pmap_t pmap; while (size > 0) { - phys_src = (unsigned int)db_vtophys(kernel_pmap, trunc_page(data)); + phys_src = db_vtophys(kernel_pmap, (vm_offset_t)data); if (phys_src == 0) { db_printf("\nno memory is assigned to src address %08x\n", data); @@ -397,27 +347,24 @@ db_write_bytes( /* NOTREACHED */ } - phys_src = phys_src | (((vm_offset_t) data) & page_mask); - /* space stays as kernel space unless in another task */ if (task == NULL) pmap = kernel_pmap; else pmap = task->map->pmap; - phys_dst = (unsigned int)db_vtophys(pmap, trunc_page(addr)); + phys_dst = db_vtophys(pmap, (vm_offset_t)addr); if (phys_dst == 0) { db_printf("\nno memory is assigned to dst address %08x\n", addr); db_error(0); /* NOTREACHED */ } - phys_dst = phys_dst| (addr & page_mask); /* don't over-run any page boundaries - check src range */ - max = ppc_round_page(phys_src) - phys_src; + max = round_page_64(phys_src + 1) - phys_src; if (max > size) max = size; /* Check destination won't run over boundary either */ - n = ppc_round_page(phys_dst) - phys_dst; + n = round_page_64(phys_dst + 1) - phys_dst; if (n < max) max = n; size -= max; @@ -425,7 +372,7 @@ db_write_bytes( phys_copy(phys_src, phys_dst, max); /* resync I+D caches */ - sync_cache(phys_dst, max); + sync_cache64(phys_dst, max); phys_src += max; phys_dst += max; @@ -439,21 +386,18 @@ db_check_access( task_t task) { register int n; - unsigned int kern_addr; if (task == kernel_task || task == TASK_NULL) { - if (kernel_task == TASK_NULL) - return(TRUE); + if (kernel_task == TASK_NULL) return(TRUE); task = kernel_task; } else if (task == TASK_NULL) { - if (current_act() == THR_ACT_NULL) - return(FALSE); - task = current_act()->task; + if (current_thread() == THR_ACT_NULL) return(FALSE); + task = current_thread()->task; } + while (size > 0) { - if (db_user_to_kernel_address(task, addr, &kern_addr, 0) < 0) - return(FALSE); - n = ppc_trunc_page(addr+PPC_PGBYTES) - addr; + if(!pmap_find_phys(task->map->pmap, (addr64_t)addr)) return (FALSE); /* Fail if page not mapped */ + n = trunc_page_32(addr+PPC_PGBYTES) - addr; if (n > size) n = size; size -= n; @@ -469,19 +413,19 @@ db_phys_eq( task_t task2, vm_offset_t addr2) { - vm_offset_t physa, physb; + addr64_t physa, physb; if ((addr1 & (PPC_PGBYTES-1)) != (addr2 & (PPC_PGBYTES-1))) /* Is byte displacement the same? */ return FALSE; if (task1 == TASK_NULL) { /* See if there is a task active */ - if (current_act() == THR_ACT_NULL) /* See if there is a current task */ + if (current_thread() == THR_ACT_NULL) /* See if there is a current task */ return FALSE; - task1 = current_act()->task; /* If so, use that one */ + task1 = current_thread()->task; /* If so, use that one */ } - if(!(physa = db_vtophys(task1->map->pmap, trunc_page(addr1)))) return FALSE; /* Get real address of the first */ - if(!(physb = db_vtophys(task2->map->pmap, trunc_page(addr2)))) return FALSE; /* Get real address of the second */ + if(!(physa = db_vtophys(task1->map->pmap, (vm_offset_t)trunc_page_32(addr1)))) return FALSE; /* Get real address of the first */ + if(!(physb = db_vtophys(task2->map->pmap, (vm_offset_t)trunc_page_32(addr2)))) return FALSE; /* Get real address of the second */ return (physa == physb); /* Check if they are equal, then return... */ } @@ -489,92 +433,67 @@ db_phys_eq( #define DB_USER_STACK_ADDR (0xc0000000) #define DB_NAME_SEARCH_LIMIT (DB_USER_STACK_ADDR-(PPC_PGBYTES*3)) +boolean_t +db_phys_cmp(__unused vm_offset_t a1, __unused vm_offset_t a2, + __unused vm_size_t s1) +{ + db_printf("db_phys_cmp: not implemented\n"); + return 0; +} + + int -db_search_null( - task_t task, - unsigned *svaddr, - unsigned evaddr, - unsigned *skaddr, - int flag) +db_search_null(__unused task_t task, __unused unsigned *svaddr, + __unused unsigned evaddr, __unused unsigned *skaddr, + __unused int flag) { - register unsigned vaddr; - register unsigned *kaddr; - - kaddr = (unsigned *)*skaddr; - for (vaddr = *svaddr; vaddr > evaddr; ) { - if (vaddr % PPC_PGBYTES == 0) { - vaddr -= sizeof(unsigned); - if (db_user_to_kernel_address(task, vaddr, skaddr, 0) < 0) - return(-1); - kaddr = (unsigned *)*skaddr; - } else { - vaddr -= sizeof(unsigned); - kaddr--; - } - if ((*kaddr == 0) ^ (flag == 0)) { - *svaddr = vaddr; - *skaddr = (unsigned)kaddr; - return(0); - } - } + db_printf("db_search_null: not implemented\n"); return(-1); } +struct proc; +unsigned char *getProcName(struct proc *proc); + void db_task_name( task_t task) { - register char *p; - register int n; - unsigned int vaddr, kaddr; - - vaddr = DB_USER_STACK_ADDR; - kaddr = 0; - - /* - * skip nulls at the end - */ - if (db_search_null(task, &vaddr, DB_NAME_SEARCH_LIMIT, &kaddr, 0) < 0) { - db_printf(DB_NULL_TASK_NAME); - return; - } - /* - * search start of args - */ - if (db_search_null(task, &vaddr, DB_NAME_SEARCH_LIMIT, &kaddr, 1) < 0) { - db_printf(DB_NULL_TASK_NAME); - return; - } + register unsigned char *p; + unsigned char tname[33]; + int i; - n = DB_TASK_NAME_LEN-1; - p = (char *)kaddr + sizeof(unsigned); - for (vaddr += sizeof(int); vaddr < DB_USER_STACK_ADDR && n > 0; - vaddr++, p++, n--) { - if (vaddr % PPC_PGBYTES == 0) { - if (db_user_to_kernel_address(task, vaddr, &kaddr, 0) <0) - return; - p = (char*)kaddr; - } - db_printf("%c", (*p < ' ' || *p > '~')? ' ': *p); + p = 0; + tname[0] = 0; + + if(task->bsd_info) p = getProcName((struct proc *)(task->bsd_info)); /* Point to task name */ + + if(p) { + for(i = 0; i < 32; i++) { /* Move no more than 32 bytes */ + tname[i] = p[i]; + if(p[i] == 0) break; + } + tname[i] = 0; + db_printf("%s", tname); } - while (n-- >= 0) /* compare with >= 0 for one more space */ - db_printf(" "); + else db_printf("no name"); } +extern int kdb_flag; void -db_machdep_init(void) { +db_machdep_init(void) +{ #define KDB_READY 0x1 - extern int kdb_flag; - kdb_flag |= KDB_READY; } #ifdef __STDC__ -#define KDB_SAVE(type, name) extern type name; type name##_save = name +//#define KDB_SAVE(type, name) extern type name; type name##_save = name +#define KDB_SAVE(type, name) type name##_save = name #define KDB_RESTORE(name) name = name##_save #else /* __STDC__ */ -#define KDB_SAVE(type, name) extern type name; type name/**/_save = name +#define KDB_SAVE(type, name) type name/**/_save = name +//#define KDB_SAVE(type, name) extern type name; type name/**/_save = name #define KDB_RESTORE(name) name = name/**/_save #endif /* __STDC__ */ @@ -612,6 +531,16 @@ db_machdep_init(void) { KDB_RESTORE(db_next); \ KDB_RESTORE(ddb_regs); +extern boolean_t db_sstep_print; +extern int db_loop_count; +extern int db_call_depth; +extern int db_inst_count; +extern int db_last_inst_count; +extern int db_load_count; +extern int db_store_count; +extern boolean_t db_cmd_loop_done; +extern void unlock_debugger(void); +extern void lock_debugger(void); /* * switch to another cpu */ @@ -620,7 +549,7 @@ kdb_on( int cpu) { KDB_SAVE_CTXT(); - if (cpu < 0 || cpu >= NCPUS || !debugger_active[cpu]) + if (cpu < 0 || cpu >= (int)real_ncpus || !PerProcTable[cpu].ppe_vaddr->debugger_active) return; db_set_breakpoints(); db_set_watchpoints(); @@ -632,18 +561,17 @@ kdb_on( KDB_RESTORE_CTXT(); if (debugger_cpu == -1) {/* someone continued */ debugger_cpu = cpu_number(); - db_continue_cmd(0, 0, 0, ""); + db_continue_cmd(0, 0, 0, NULL); } } /* * system reboot */ -void db_reboot( - db_expr_t addr, - boolean_t have_addr, - db_expr_t count, - char *modif) + +void +db_reboot(__unused db_expr_t addr, __unused boolean_t have_addr, + __unused db_expr_t count, char *modif) { boolean_t reboot = TRUE; char *cp, c; @@ -655,17 +583,10 @@ void db_reboot( if (c == 'h') /* halt */ reboot = FALSE; } - halt_all_cpus(reboot); -} + if(!reboot) halt_all_cpus(FALSE); /* If no reboot, try to be clean about it */ -/* - * Switch to gdb - */ -void -db_to_gdb( - void) -{ - extern unsigned int switch_debugger; + if (PE_halt_restart) + (*PE_halt_restart)(kPERestartCPU); + db_printf("Sorry, system can't reboot automatically yet... You need to do it by hand...\n"); - switch_debugger=1; }