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head/sys/arm64/arm64/debug_monitor.c
| Show First 20 Lines • Show All 447 Lines • ▼ Show 20 Lines | dbg_remove_watchpoint(db_expr_t addr, db_expr_t size, enum dbg_el_t el) | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| void | void | ||||
| dbg_monitor_init(void) | dbg_monitor_init(void) | ||||
| { | { | ||||
| u_int i; | u_int i; | ||||
| /* Clear OS lock */ | |||||
| WRITE_SPECIALREG(OSLAR_EL1, 0); | |||||
| /* Find out many breakpoints and watchpoints we can use */ | /* Find out many breakpoints and watchpoints we can use */ | ||||
| dbg_watchpoint_num = ((READ_SPECIALREG(ID_AA64DFR0_EL1) >> 20) & 0xf) + 1; | dbg_watchpoint_num = ((READ_SPECIALREG(ID_AA64DFR0_EL1) >> 20) & 0xf) + 1; | ||||
| dbg_breakpoint_num = ((READ_SPECIALREG(ID_AA64DFR0_EL1) >> 12) & 0xf) + 1; | dbg_breakpoint_num = ((READ_SPECIALREG(ID_AA64DFR0_EL1) >> 12) & 0xf) + 1; | ||||
| if (bootverbose && PCPU_GET(cpuid) == 0) { | if (bootverbose && PCPU_GET(cpuid) == 0) { | ||||
| db_printf("%d watchpoints and %d breakpoints supported\n", | printf("%d watchpoints and %d breakpoints supported\n", | ||||
| dbg_watchpoint_num, dbg_breakpoint_num); | dbg_watchpoint_num, dbg_breakpoint_num); | ||||
| } | } | ||||
| /* | /* | ||||
| * We have limited number of {watch,break}points, each consists of | * We have limited number of {watch,break}points, each consists of | ||||
| * two registers: | * two registers: | ||||
| * - wcr/bcr regsiter configurates corresponding {watch,break}point | * - wcr/bcr regsiter configurates corresponding {watch,break}point | ||||
| * behaviour | * behaviour | ||||
| Show All 16 Lines | |||||