| /branches/tracing/uspace/app/debug/genarch/idec/bstore.c |
|---|
| 0,0 → 1,111 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup debug |
| * @{ |
| */ |
| /** @file |
| */ |
| #include <stdio.h> |
| #include <assert.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <udebug.h> |
| #include "../../main.h" |
| #include "../../cons.h" |
| #include "bstore.h" |
| void bstore_initialize(bstore_t *bs) |
| { |
| bs->valid = false; |
| } |
| int bstore_save(bstore_t *bs, uintptr_t addr) |
| { |
| uint32_t v; |
| int rc; |
| assert(bs->valid == false); |
| rc = udebug_mem_read(app_phone, &v, addr, sizeof(uint32_t)); |
| if (rc == EOK) { |
| bs->valid = true; |
| bs->address = addr; |
| bs->value = v; |
| } else { |
| cons_printf("Error reading memory address 0x%zx\n", addr); |
| } |
| return rc; |
| } |
| int bstore_push(bstore_t *bs, uintptr_t addr, uint32_t value) |
| { |
| int rc; |
| rc = bstore_save(bs, addr); |
| if (rc != EOK) return rc; |
| rc = udebug_mem_write(app_phone, &value, addr, sizeof(uint32_t)); |
| if (rc != EOK) { |
| cons_printf("Error writing memory address 0x%zx\n", addr); |
| bstore_empty(bs); |
| return rc; |
| } |
| return EOK; |
| } |
| int bstore_pop(bstore_t *bs) |
| { |
| int rc; |
| assert(bs->valid == true); |
| rc = udebug_mem_write(app_phone, &bs->value, bs->address, |
| sizeof(uint32_t)); |
| if (rc == EOK) { |
| bs->valid = false; |
| } else { |
| cons_printf("Error writing memory address 0x%zx\n", |
| bs->address); |
| } |
| return rc; |
| } |
| void bstore_empty(bstore_t *bs) |
| { |
| assert(bs->valid == true); |
| bs->valid = false; |
| } |
| /** @} |
| */ |
| /branches/tracing/uspace/app/debug/genarch/idec/bstore.h |
|---|
| 0,0 → 1,55 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup debug |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef BSTORE_H_ |
| #define BSTORE_H_ |
| #include <bool.h> |
| typedef struct { |
| bool valid; |
| uintptr_t address; |
| uint32_t value; |
| } bstore_t; |
| void bstore_initialize(bstore_t *bs); |
| int bstore_save(bstore_t *bs, uintptr_t addr); |
| int bstore_push(bstore_t *bs, uintptr_t addr, uint32_t value); |
| int bstore_pop(bstore_t *bs); |
| void bstore_empty(bstore_t *bs); |
| #endif |
| /** @} |
| */ |
| /branches/tracing/uspace/app/debug/genarch/idec/idec.c |
|---|
| 0,0 → 1,235 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup debug |
| * @{ |
| */ |
| /** @file |
| */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <assert.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <udebug.h> |
| #include "../../cons.h" |
| #include "../../main.h" |
| #include "../../breakpoint.h" |
| #include "../../include/arch.h" |
| #include "../../include/arch/arch.h" |
| #include "idec.h" |
| static istate_t istate; |
| int idec_breakpoint_set(breakpoint_t *b) |
| { |
| bstore_initialize(&b->arch.bs); |
| bstore_initialize(&b->arch.next_bs[0]); |
| bstore_initialize(&b->arch.next_bs[1]); |
| return bstore_push(&b->arch.bs, b->addr, OPCODE_BREAK); |
| } |
| int idec_breakpoint_remove(breakpoint_t *b) |
| { |
| return bstore_pop(&b->arch.bs); |
| } |
| static void _ev_breakpoint(thash_t thread_hash) |
| { |
| breakpoint_t *b; |
| dthread_t *dt; |
| int rc, n_next, i; |
| uint32_t epc; |
| uintptr_t brk_addr; |
| uintptr_t next_addr[2]; |
| uint32_t brkp; |
| brkp = OPCODE_BREAK; |
| cons_printf("arch_event_breakpoint\n"); |
| rc = udebug_regs_read(app_phone, thread_hash, &istate); |
| cons_printf("udebug_regs_read -> %d\n", rc); |
| epc = istate_get_pc(&istate); |
| cons_printf("EPC was 0x%08x\n", epc); |
| brk_addr = epc; |
| dt = dthread_get(); |
| if (active_bkpt != NULL) { |
| assert(active_bkpt->arch.bs.address == brk_addr); |
| b = active_bkpt; |
| /* A breakpoint-restoring BRK has been hit */ |
| cons_printf("restoring breakpoint %d\n", b->id); |
| for (i = 0; i < b->arch.n_next; ++i) { |
| rc = bstore_pop(&b->arch.next_bs[i]); |
| if (rc != 0) return; |
| } |
| rc = bstore_push(&b->arch.bs, b->addr, OPCODE_BREAK); |
| if (rc != 0) return; |
| active_bkpt = NULL; |
| return; |
| } |
| b = breakpoint_find_by_addr(brk_addr); |
| if (b == NULL) { |
| cons_printf("Unrecognized breakpoint at 0x%lx\n", brk_addr); |
| } |
| /* A breakpoint has been hit */ |
| cons_printf("breakpoint_hit...\n"); |
| breakpoint_hit(b); |
| /* While in breakpoint_hit(), singlestep was activated */ |
| if (dt->arch.singlestep) return; |
| cons_printf("move breakpoint\b"); |
| rc = bstore_pop(&b->arch.bs); |
| if (rc != 0) return; |
| n_next = get_next_addr(dt, brk_addr, next_addr); |
| if (n_next < 0) return; |
| /* |
| * There could be another breakpoint at next_addr, |
| * but that's okay. We'll pop the active breakpoint bs |
| * before doing anything else. |
| */ |
| for (i = 0; i < n_next; ++i) { |
| rc = bstore_push(&b->arch.next_bs[i], next_addr[i], |
| OPCODE_BREAK); |
| if (rc != 0) return; |
| } |
| b->arch.n_next = n_next; |
| active_bkpt = b; |
| b->active = true; |
| cons_printf("end_hit...\n"); |
| } |
| static void _ev_singlestep(thash_t thread_hash) |
| { |
| dthread_t *dt; |
| int rc, i; |
| uint32_t epc; |
| int brk_addr; |
| uint32_t brkp; |
| dt = dthread_get(); |
| assert(active_bkpt == NULL); |
| assert(dt->arch.singlestep); |
| brkp = OPCODE_BREAK; |
| cons_printf("arch_event_breakpoint\n"); |
| rc = udebug_regs_read(app_phone, thread_hash, &istate); |
| cons_printf("udebug_regs_read -> %d\n", rc); |
| epc = istate_get_pc(&istate); |
| cons_printf("EPC was 0x%08x\n", epc); |
| brk_addr = epc; |
| if (dt->arch.cur.valid) { |
| cons_printf("restore breakpoint BREAK\n"); |
| rc = bstore_pop(&dt->arch.cur); |
| } |
| cons_printf("\nclear singlestep BREAKs\n"); |
| for (i = 0; i < dt->arch.n_next; ++i) { |
| rc = bstore_pop(&dt->arch.next[i]); |
| if (rc != 0) return; |
| } |
| dt->arch.singlestep = false; |
| singlestep_hit(); |
| } |
| void idec_event_breakpoint(thash_t thread_hash) |
| { |
| dthread_t *dt; |
| dt = dthread_get(); |
| if (dt->arch.singlestep) { |
| _ev_singlestep(thread_hash); |
| } else { |
| _ev_breakpoint(thread_hash); |
| } |
| } |
| void idec_singlestep(dthread_t *dt) |
| { |
| int rc, i; |
| uint32_t epc; |
| breakpoint_t *b; |
| uint32_t old_instr; |
| uintptr_t next_addr[2]; |
| int n_next; |
| assert(active_bkpt == NULL); |
| assert(dt->arch.singlestep == false); |
| cons_printf("idec_singlestep(dt)\n"); |
| rc = udebug_regs_read(app_phone, dt->hash, &istate); |
| cons_printf("udebug_regs_read -> %d\n", rc); |
| epc = istate_get_pc(&istate); |
| cons_printf("EPC was 0x%08x\n", epc); |
| cons_printf("initial set singlestep\n"); |
| b = breakpoint_find_by_addr(epc); |
| if (b != NULL) { |
| /* Cover breakpoint with old instruction */ |
| old_instr = b->arch.bs.value; |
| rc = bstore_push(&dt->arch.cur, epc, old_instr); |
| if (rc < 0) return; |
| } |
| n_next = get_next_addr(dt, epc, next_addr); |
| if (n_next < 0) return; |
| /* Cover next instruction(s) with BREAK */ |
| for (i = 0; i < n_next; ++i) { |
| rc = bstore_push(&dt->arch.next[i], next_addr[i], OPCODE_BREAK); |
| if (rc != 0) return; |
| } |
| dt->arch.n_next = n_next; |
| dt->arch.singlestep = true; |
| dthread_resume(dt); |
| } |
| /** @} |
| */ |
| /branches/tracing/uspace/app/debug/genarch/idec/idec.h |
|---|
| 0,0 → 1,48 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup debug |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef IDEC_H_ |
| #define IDEC_H_ |
| #include "../../breakpoint.h" |
| int idec_breakpoint_set(breakpoint_t *b); |
| int idec_breakpoint_remove(breakpoint_t *b); |
| void idec_event_breakpoint(thash_t thread_hash); |
| void idec_singlestep(dthread_t *dt); |
| #endif |
| /** @} |
| */ |