| db_run.c (273006) | db_run.c (283088) |
|---|---|
| 1/*- 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the --- 19 unchanged lines hidden (view full) --- 28 * Date: 7/90 29 */ 30 31/* 32 * Commands to run process. 33 */ 34 35#include <sys/cdefs.h> | 1/*- 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the --- 19 unchanged lines hidden (view full) --- 28 * Date: 7/90 29 */ 30 31/* 32 * Commands to run process. 33 */ 34 35#include <sys/cdefs.h> |
| 36__FBSDID("$FreeBSD: head/sys/ddb/db_run.c 273006 2014-10-12 18:01:52Z pfg $"); | 36__FBSDID("$FreeBSD: head/sys/ddb/db_run.c 283088 2015-05-18 22:27:46Z pfg $"); |
| 37 38#include <sys/param.h> 39#include <sys/kdb.h> 40#include <sys/proc.h> 41 42#include <machine/kdb.h> 43#include <machine/pcb.h> 44 --- 37 unchanged lines hidden (view full) --- 82{ 83 register db_addr_t pc; 84 register db_breakpoint_t bkpt; 85 86 pc = PC_REGS(); 87#ifdef SOFTWARE_SSTEP 88 if ((db_not_taken_bkpt != 0 && pc == db_not_taken_bkpt->address) 89 || (db_taken_bkpt != 0 && pc == db_taken_bkpt->address)) | 37 38#include <sys/param.h> 39#include <sys/kdb.h> 40#include <sys/proc.h> 41 42#include <machine/kdb.h> 43#include <machine/pcb.h> 44 --- 37 unchanged lines hidden (view full) --- 82{ 83 register db_addr_t pc; 84 register db_breakpoint_t bkpt; 85 86 pc = PC_REGS(); 87#ifdef SOFTWARE_SSTEP 88 if ((db_not_taken_bkpt != 0 && pc == db_not_taken_bkpt->address) 89 || (db_taken_bkpt != 0 && pc == db_taken_bkpt->address)) |
| 90 *is_breakpoint = FALSE; | 90 *is_breakpoint = false; |
| 91#endif 92 93 db_clear_single_step(); 94 db_clear_breakpoints(); 95 db_clear_watchpoints(); 96 97#ifdef FIXUP_PC_AFTER_BREAK 98 if (*is_breakpoint) { --- 8 unchanged lines hidden (view full) --- 107 108 /* 109 * Now check for a breakpoint at this address. 110 */ 111 bkpt = db_find_breakpoint_here(pc); 112 if (bkpt) { 113 if (--bkpt->count == 0) { 114 bkpt->count = bkpt->init_count; | 91#endif 92 93 db_clear_single_step(); 94 db_clear_breakpoints(); 95 db_clear_watchpoints(); 96 97#ifdef FIXUP_PC_AFTER_BREAK 98 if (*is_breakpoint) { --- 8 unchanged lines hidden (view full) --- 107 108 /* 109 * Now check for a breakpoint at this address. 110 */ 111 bkpt = db_find_breakpoint_here(pc); 112 if (bkpt) { 113 if (--bkpt->count == 0) { 114 bkpt->count = bkpt->init_count; |
| 115 *is_breakpoint = TRUE; 116 return (TRUE); /* stop here */ | 115 *is_breakpoint = true; 116 return (true); /* stop here */ |
| 117 } 118 } else if (*is_breakpoint) { 119#ifdef BKPT_SKIP 120 BKPT_SKIP; 121#endif 122 } 123 | 117 } 118 } else if (*is_breakpoint) { 119#ifdef BKPT_SKIP 120 BKPT_SKIP; 121#endif 122 } 123 |
| 124 *is_breakpoint = FALSE; | 124 *is_breakpoint = false; |
| 125 126 if (db_run_mode == STEP_INVISIBLE) { 127 db_run_mode = STEP_CONTINUE; | 125 126 if (db_run_mode == STEP_INVISIBLE) { 127 db_run_mode = STEP_CONTINUE; |
| 128 return (FALSE); /* continue */ | 128 return (false); /* continue */ |
| 129 } 130 if (db_run_mode == STEP_COUNT) { | 129 } 130 if (db_run_mode == STEP_COUNT) { |
| 131 return (FALSE); /* continue */ | 131 return (false); /* continue */ |
| 132 } 133 if (db_run_mode == STEP_ONCE) { 134 if (--db_loop_count > 0) { 135 if (db_sstep_print) { 136 db_printf("\t\t"); 137 db_print_loc_and_inst(pc); 138 db_printf("\n"); 139 } | 132 } 133 if (db_run_mode == STEP_ONCE) { 134 if (--db_loop_count > 0) { 135 if (db_sstep_print) { 136 db_printf("\t\t"); 137 db_print_loc_and_inst(pc); 138 db_printf("\n"); 139 } |
| 140 return (FALSE); /* continue */ | 140 return (false); /* continue */ |
| 141 } 142 } 143 if (db_run_mode == STEP_RETURN) { 144 /* continue until matching return */ 145 db_expr_t ins; 146 | 141 } 142 } 143 if (db_run_mode == STEP_RETURN) { 144 /* continue until matching return */ 145 db_expr_t ins; 146 |
| 147 ins = db_get_value(pc, sizeof(int), FALSE); | 147 ins = db_get_value(pc, sizeof(int), false); |
| 148 if (!inst_trap_return(ins) && 149 (!inst_return(ins) || --db_call_depth != 0)) { 150 if (db_sstep_print) { 151 if (inst_call(ins) || inst_return(ins)) { 152 register int i; 153 154 db_printf("[after %6d] ", db_inst_count); 155 for (i = db_call_depth; --i > 0; ) 156 db_printf(" "); 157 db_print_loc_and_inst(pc); 158 db_printf("\n"); 159 } 160 } 161 if (inst_call(ins)) 162 db_call_depth++; | 148 if (!inst_trap_return(ins) && 149 (!inst_return(ins) || --db_call_depth != 0)) { 150 if (db_sstep_print) { 151 if (inst_call(ins) || inst_return(ins)) { 152 register int i; 153 154 db_printf("[after %6d] ", db_inst_count); 155 for (i = db_call_depth; --i > 0; ) 156 db_printf(" "); 157 db_print_loc_and_inst(pc); 158 db_printf("\n"); 159 } 160 } 161 if (inst_call(ins)) 162 db_call_depth++; |
| 163 return (FALSE); /* continue */ | 163 return (false); /* continue */ |
| 164 } 165 } 166 if (db_run_mode == STEP_CALLT) { 167 /* continue until call or return */ 168 db_expr_t ins; 169 | 164 } 165 } 166 if (db_run_mode == STEP_CALLT) { 167 /* continue until call or return */ 168 db_expr_t ins; 169 |
| 170 ins = db_get_value(pc, sizeof(int), FALSE); | 170 ins = db_get_value(pc, sizeof(int), false); |
| 171 if (!inst_call(ins) && 172 !inst_return(ins) && 173 !inst_trap_return(ins)) { | 171 if (!inst_call(ins) && 172 !inst_return(ins) && 173 !inst_trap_return(ins)) { |
| 174 return (FALSE); /* continue */ | 174 return (false); /* continue */ |
| 175 } 176 } 177 db_run_mode = STEP_NONE; | 175 } 176 } 177 db_run_mode = STEP_NONE; |
| 178 return (TRUE); | 178 return (true); |
| 179} 180 181void 182db_restart_at_pc(boolean_t watchpt) 183{ 184 register db_addr_t pc = PC_REGS(); 185 186 if ((db_run_mode == STEP_COUNT) || 187 (db_run_mode == STEP_RETURN) || 188 (db_run_mode == STEP_CALLT)) { 189 /* 190 * We are about to execute this instruction, 191 * so count it now. 192 */ 193#ifdef SOFTWARE_SSTEP 194 db_expr_t ins = 195#endif | 179} 180 181void 182db_restart_at_pc(boolean_t watchpt) 183{ 184 register db_addr_t pc = PC_REGS(); 185 186 if ((db_run_mode == STEP_COUNT) || 187 (db_run_mode == STEP_RETURN) || 188 (db_run_mode == STEP_CALLT)) { 189 /* 190 * We are about to execute this instruction, 191 * so count it now. 192 */ 193#ifdef SOFTWARE_SSTEP 194 db_expr_t ins = 195#endif |
| 196 db_get_value(pc, sizeof(int), FALSE); | 196 db_get_value(pc, sizeof(int), false); |
| 197 db_inst_count++; 198 db_load_count += inst_load(ins); 199 db_store_count += inst_store(ins); 200#ifdef SOFTWARE_SSTEP 201 /* XXX works on mips, but... */ 202 if (inst_branch(ins) || inst_call(ins)) { 203 ins = db_get_value(next_instr_address(pc,1), | 197 db_inst_count++; 198 db_load_count += inst_load(ins); 199 db_store_count += inst_store(ins); 200#ifdef SOFTWARE_SSTEP 201 /* XXX works on mips, but... */ 202 if (inst_branch(ins) || inst_call(ins)) { 203 ins = db_get_value(next_instr_address(pc,1), |
| 204 sizeof(int), FALSE); | 204 sizeof(int), false); |
| 205 db_inst_count++; 206 db_load_count += inst_load(ins); 207 db_store_count += inst_store(ins); 208 } 209#endif /* SOFTWARE_SSTEP */ 210 } 211 212 if (db_run_mode == STEP_CONTINUE) { --- 48 unchanged lines hidden (view full) --- 261{ 262 db_addr_t pc = PC_REGS(), brpc; 263 unsigned inst; 264 265 /* 266 * User was stopped at pc, e.g. the instruction 267 * at pc was not executed. 268 */ | 205 db_inst_count++; 206 db_load_count += inst_load(ins); 207 db_store_count += inst_store(ins); 208 } 209#endif /* SOFTWARE_SSTEP */ 210 } 211 212 if (db_run_mode == STEP_CONTINUE) { --- 48 unchanged lines hidden (view full) --- 261{ 262 db_addr_t pc = PC_REGS(), brpc; 263 unsigned inst; 264 265 /* 266 * User was stopped at pc, e.g. the instruction 267 * at pc was not executed. 268 */ |
| 269 inst = db_get_value(pc, sizeof(int), FALSE); | 269 inst = db_get_value(pc, sizeof(int), false); |
| 270 if (inst_branch(inst) || inst_call(inst) || inst_return(inst)) { 271 brpc = branch_taken(inst, pc); 272 if (brpc != pc) { /* self-branches are hopeless */ 273 db_taken_bkpt = db_set_temp_breakpoint(brpc); 274 } 275 pc = next_instr_address(pc, 1); 276 } 277 pc = next_instr_address(pc, 0); --- 22 unchanged lines hidden (view full) --- 300/*ARGSUSED*/ 301void 302db_single_step_cmd(addr, have_addr, count, modif) 303 db_expr_t addr; 304 boolean_t have_addr; 305 db_expr_t count; 306 char * modif; 307{ | 270 if (inst_branch(inst) || inst_call(inst) || inst_return(inst)) { 271 brpc = branch_taken(inst, pc); 272 if (brpc != pc) { /* self-branches are hopeless */ 273 db_taken_bkpt = db_set_temp_breakpoint(brpc); 274 } 275 pc = next_instr_address(pc, 1); 276 } 277 pc = next_instr_address(pc, 0); --- 22 unchanged lines hidden (view full) --- 300/*ARGSUSED*/ 301void 302db_single_step_cmd(addr, have_addr, count, modif) 303 db_expr_t addr; 304 boolean_t have_addr; 305 db_expr_t count; 306 char * modif; 307{ |
| 308 boolean_t print = FALSE; | 308 boolean_t print = false; |
| 309 310 if (count == -1) 311 count = 1; 312 313 if (modif[0] == 'p') | 309 310 if (count == -1) 311 count = 1; 312 313 if (modif[0] == 'p') |
| 314 print = TRUE; | 314 print = true; |
| 315 316 db_run_mode = STEP_ONCE; 317 db_loop_count = count; 318 db_sstep_print = print; 319 db_inst_count = 0; 320 db_load_count = 0; 321 db_store_count = 0; 322 323 db_cmd_loop_done = 1; 324} 325 326/* trace and print until call/return */ 327/*ARGSUSED*/ 328void 329db_trace_until_call_cmd(db_expr_t addr, boolean_t have_addr, db_expr_t count, 330 char *modif) 331{ | 315 316 db_run_mode = STEP_ONCE; 317 db_loop_count = count; 318 db_sstep_print = print; 319 db_inst_count = 0; 320 db_load_count = 0; 321 db_store_count = 0; 322 323 db_cmd_loop_done = 1; 324} 325 326/* trace and print until call/return */ 327/*ARGSUSED*/ 328void 329db_trace_until_call_cmd(db_expr_t addr, boolean_t have_addr, db_expr_t count, 330 char *modif) 331{ |
| 332 boolean_t print = FALSE; | 332 boolean_t print = false; |
| 333 334 if (modif[0] == 'p') | 333 334 if (modif[0] == 'p') |
| 335 print = TRUE; | 335 print = true; |
| 336 337 db_run_mode = STEP_CALLT; 338 db_sstep_print = print; 339 db_inst_count = 0; 340 db_load_count = 0; 341 db_store_count = 0; 342 343 db_cmd_loop_done = 1; 344} 345 346/*ARGSUSED*/ 347void 348db_trace_until_matching_cmd(db_expr_t addr, boolean_t have_addr, 349 db_expr_t count, char *modif) 350{ | 336 337 db_run_mode = STEP_CALLT; 338 db_sstep_print = print; 339 db_inst_count = 0; 340 db_load_count = 0; 341 db_store_count = 0; 342 343 db_cmd_loop_done = 1; 344} 345 346/*ARGSUSED*/ 347void 348db_trace_until_matching_cmd(db_expr_t addr, boolean_t have_addr, 349 db_expr_t count, char *modif) 350{ |
| 351 boolean_t print = FALSE; | 351 boolean_t print = false; |
| 352 353 if (modif[0] == 'p') | 352 353 if (modif[0] == 'p') |
| 354 print = TRUE; | 354 print = true; |
| 355 356 db_run_mode = STEP_RETURN; 357 db_call_depth = 1; 358 db_sstep_print = print; 359 db_inst_count = 0; 360 db_load_count = 0; 361 db_store_count = 0; 362 --- 19 unchanged lines hidden --- | 355 356 db_run_mode = STEP_RETURN; 357 db_call_depth = 1; 358 db_sstep_print = print; 359 db_inst_count = 0; 360 db_load_count = 0; 361 db_store_count = 0; 362 --- 19 unchanged lines hidden --- |