diff options
author | Mike Frysinger <michael.frysinger@analog.com> | 2007-11-21 10:50:49 -0500 |
---|---|---|
committer | Bryan Wu <bryan.wu@analog.com> | 2007-11-21 10:50:49 -0500 |
commit | 74ce8322bf8843e6fd04e081d361c107bcf73564 (patch) | |
tree | 3929ea610869c28cad8b7130588efeda9e7cbf5a /arch/blackfin/Kconfig | |
parent | 529a73fbaeee2f3bd932be8b54665994133be6ae (diff) |
Blackfin arch: split debug stuff off into Kconfig.debug like everyone else
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/Kconfig')
-rw-r--r-- | arch/blackfin/Kconfig | 169 |
1 files changed, 1 insertions, 168 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 6afcf2b8f743..b9043ee52804 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig | |||
@@ -982,174 +982,7 @@ source "fs/Kconfig" | |||
982 | 982 | ||
983 | source "kernel/Kconfig.instrumentation" | 983 | source "kernel/Kconfig.instrumentation" |
984 | 984 | ||
985 | menu "Kernel hacking" | 985 | source "arch/blackfin/Kconfig.debug" |
986 | |||
987 | source "lib/Kconfig.debug" | ||
988 | |||
989 | config DEBUG_HWERR | ||
990 | bool "Hardware error interrupt debugging" | ||
991 | depends on DEBUG_KERNEL | ||
992 | help | ||
993 | When enabled, the hardware error interrupt is never disabled, and | ||
994 | will happen immediately when an error condition occurs. This comes | ||
995 | at a slight cost in code size, but is necessary if you are getting | ||
996 | hardware error interrupts and need to know where they are coming | ||
997 | from. | ||
998 | |||
999 | config DEBUG_ICACHE_CHECK | ||
1000 | bool "Check Instruction cache coherency" | ||
1001 | depends on DEBUG_KERNEL | ||
1002 | depends on DEBUG_HWERR | ||
1003 | help | ||
1004 | Say Y here if you are getting weird unexplained errors. This will | ||
1005 | ensure that icache is what SDRAM says it should be by doing a | ||
1006 | byte wise comparison between SDRAM and instruction cache. This | ||
1007 | also relocates the irq_panic() function to L1 memory, (which is | ||
1008 | un-cached). | ||
1009 | |||
1010 | config DEBUG_HUNT_FOR_ZERO | ||
1011 | bool "Catch NULL pointer reads/writes" | ||
1012 | default y | ||
1013 | help | ||
1014 | Say Y here to catch reads/writes to anywhere in the memory range | ||
1015 | from 0x0000 - 0x0FFF (the first 4k) of memory. This is useful in | ||
1016 | catching common programming errors such as NULL pointer dereferences. | ||
1017 | |||
1018 | Misbehaving applications will be killed (generate a SEGV) while the | ||
1019 | kernel will trigger a panic. | ||
1020 | |||
1021 | Enabling this option will take up an extra entry in CPLB table. | ||
1022 | Otherwise, there is no extra overhead. | ||
1023 | |||
1024 | config DEBUG_BFIN_HWTRACE_ON | ||
1025 | bool "Turn on Blackfin's Hardware Trace" | ||
1026 | default y | ||
1027 | help | ||
1028 | All Blackfins include a Trace Unit which stores a history of the last | ||
1029 | 16 changes in program flow taken by the program sequencer. The history | ||
1030 | allows the user to recreate the program sequencer’s recent path. This | ||
1031 | can be handy when an application dies - we print out the execution | ||
1032 | path of how it got to the offending instruction. | ||
1033 | |||
1034 | By turning this off, you may save a tiny amount of power. | ||
1035 | |||
1036 | choice | ||
1037 | prompt "Omit loop Tracing" | ||
1038 | default DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | ||
1039 | depends on DEBUG_BFIN_HWTRACE_ON | ||
1040 | help | ||
1041 | The trace buffer can be configured to omit recording of changes in | ||
1042 | program flow that match either the last entry or one of the last | ||
1043 | two entries. Omitting one of these entries from the record prevents | ||
1044 | the trace buffer from overflowing because of any sort of loop (for, do | ||
1045 | while, etc) in the program. | ||
1046 | |||
1047 | Because zero-overhead Hardware loops are not recorded in the trace buffer, | ||
1048 | this feature can be used to prevent trace overflow from loops that | ||
1049 | are nested four deep. | ||
1050 | |||
1051 | config DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | ||
1052 | bool "Trace all Loops" | ||
1053 | help | ||
1054 | The trace buffer records all changes of flow | ||
1055 | |||
1056 | config DEBUG_BFIN_HWTRACE_COMPRESSION_ONE | ||
1057 | bool "Compress single-level loops" | ||
1058 | help | ||
1059 | The trace buffer does not record single loops - helpful if trace | ||
1060 | is spinning on a while or do loop. | ||
1061 | |||
1062 | config DEBUG_BFIN_HWTRACE_COMPRESSION_TWO | ||
1063 | bool "Compress two-level loops" | ||
1064 | help | ||
1065 | The trace buffer does not record loops two levels deep. Helpful if | ||
1066 | the trace is spinning in a nested loop | ||
1067 | |||
1068 | endchoice | ||
1069 | |||
1070 | config DEBUG_BFIN_HWTRACE_COMPRESSION | ||
1071 | int | ||
1072 | depends on DEBUG_BFIN_HWTRACE_ON | ||
1073 | default 0 if DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | ||
1074 | default 1 if DEBUG_BFIN_HWTRACE_COMPRESSION_ONE | ||
1075 | default 2 if DEBUG_BFIN_HWTRACE_COMPRESSION_TWO | ||
1076 | |||
1077 | |||
1078 | config DEBUG_BFIN_HWTRACE_EXPAND | ||
1079 | bool "Expand Trace Buffer greater than 16 entries" | ||
1080 | depends on DEBUG_BFIN_HWTRACE_ON | ||
1081 | default n | ||
1082 | help | ||
1083 | By selecting this option, every time the 16 hardware entries in | ||
1084 | the Blackfin's HW Trace buffer are full, the kernel will move them | ||
1085 | into a software buffer, for dumping when there is an issue. This | ||
1086 | has a great impact on performance, (an interrupt every 16 change of | ||
1087 | flows) and should normally be turned off, except in those nasty | ||
1088 | debugging sessions | ||
1089 | |||
1090 | config DEBUG_BFIN_HWTRACE_EXPAND_LEN | ||
1091 | int "Size of Trace buffer (in power of 2k)" | ||
1092 | range 0 4 | ||
1093 | depends on DEBUG_BFIN_HWTRACE_EXPAND | ||
1094 | default 1 | ||
1095 | help | ||
1096 | This sets the size of the software buffer that the trace information | ||
1097 | is kept in. | ||
1098 | 0 for (2^0) 1k, or 256 entries, | ||
1099 | 1 for (2^1) 2k, or 512 entries, | ||
1100 | 2 for (2^2) 4k, or 1024 entries, | ||
1101 | 3 for (2^3) 8k, or 2048 entries, | ||
1102 | 4 for (2^4) 16k, or 4096 entries | ||
1103 | |||
1104 | config DEBUG_BFIN_NO_KERN_HWTRACE | ||
1105 | bool "Trace user apps (turn off hwtrace in kernel)" | ||
1106 | depends on DEBUG_BFIN_HWTRACE_ON | ||
1107 | default n | ||
1108 | help | ||
1109 | Some pieces of the kernel contain a lot of flow changes which can | ||
1110 | quickly fill up the hardware trace buffer. When debugging crashes, | ||
1111 | the hardware trace may indicate that the problem lies in kernel | ||
1112 | space when in reality an application is buggy. | ||
1113 | |||
1114 | Say Y here to disable hardware tracing in some known "jumpy" pieces | ||
1115 | of code so that the trace buffer will extend further back. | ||
1116 | |||
1117 | config EARLY_PRINTK | ||
1118 | bool "Early printk" | ||
1119 | default n | ||
1120 | help | ||
1121 | This option enables special console drivers which allow the kernel | ||
1122 | to print messages very early in the bootup process. | ||
1123 | |||
1124 | This is useful for kernel debugging when your machine crashes very | ||
1125 | early before the console code is initialized. After enabling this | ||
1126 | feature, you must add "earlyprintk=serial,uart0,57600" to the | ||
1127 | command line (bootargs). It is safe to say Y here in all cases, as | ||
1128 | all of this lives in the init section and is thrown away after the | ||
1129 | kernel boots completely. | ||
1130 | |||
1131 | config DUAL_CORE_TEST_MODULE | ||
1132 | tristate "Dual Core Test Module" | ||
1133 | depends on (BF561) | ||
1134 | default n | ||
1135 | help | ||
1136 | Say Y here to build-in dual core test module for dual core test. | ||
1137 | |||
1138 | config CPLB_INFO | ||
1139 | bool "Display the CPLB information" | ||
1140 | help | ||
1141 | Display the CPLB information. | ||
1142 | |||
1143 | config ACCESS_CHECK | ||
1144 | bool "Check the user pointer address" | ||
1145 | default y | ||
1146 | help | ||
1147 | Usually the pointer transfer from user space is checked to see if its | ||
1148 | address is in the kernel space. | ||
1149 | |||
1150 | Say N here to disable that check to improve the performance. | ||
1151 | |||
1152 | endmenu | ||
1153 | 986 | ||
1154 | source "security/Kconfig" | 987 | source "security/Kconfig" |
1155 | 988 | ||