X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;ds=sidebyside;f=arch%2Fpowerpc%2FKconfig.debug;h=5cdd7ed9a12e89abe0b4eec8cbe9155b7dfacd9e;hb=8dbce53cc249a76e9450708d291fce5a7e29c6a1;hp=0baf64ec80d022b9f7f00549014cbb0f9af26365;hpb=ff64208df7eb17c5526197449762ff5e04a95de6;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 0baf64e..5cdd7ed 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -2,78 +2,93 @@ menu "Kernel hacking" source "lib/Kconfig.debug" +config PPC_DISABLE_WERROR + bool "Don't build arch/powerpc code with -Werror" + default n + help + This option tells the compiler NOT to build the code under + arch/powerpc with the -Werror flag (which means warnings + are treated as errors). + + Only enable this if you are hitting a build failure in the + arch/powerpc code caused by a warning, and you don't feel + inclined to fix it. + +config PPC_WERROR + bool + depends on !PPC_DISABLE_WERROR + default y + +config PRINT_STACK_DEPTH + int "Stack depth to print" if DEBUG_KERNEL + default 64 + help + This option allows you to set the stack depth that the kernel + prints in stack traces. This can be useful if your display is + too small and stack traces cause important information to + scroll off the screen. + config DEBUG_STACKOVERFLOW bool "Check for stack overflows" - depends on DEBUG_KERNEL && PPC64 + depends on DEBUG_KERNEL help This option will cause messages to be printed if free stack space drops below a certain limit. -config KPROBES - bool "Kprobes" - depends on DEBUG_KERNEL && PPC64 - help - Kprobes allows you to trap at almost any kernel address and - execute a callback function. register_kprobe() establishes - a probepoint and specifies the callback. Kprobes is useful - for kernel debugging, non-intrusive instrumentation and testing. - If in doubt, say "N". - config DEBUG_STACK_USAGE bool "Stack utilization instrumentation" - depends on DEBUG_KERNEL && PPC64 + depends on DEBUG_KERNEL help Enables the display of the minimum amount of free stack which each task has ever had available in the sysrq-T and sysrq-P debug output. This option will slow down process creation somewhat. -config DEBUGGER - bool "Enable debugger hooks" - depends on DEBUG_KERNEL +config HCALL_STATS + bool "Hypervisor call instrumentation" + depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS help - Include in-kernel hooks for kernel debuggers. Unless you are - intending to debug the kernel, say N here. - -config KGDB - bool "Include kgdb kernel debugger" - depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx) - select DEBUG_INFO - help - Include in-kernel hooks for kgdb, the Linux kernel source level - debugger. See for more information. - Unless you are intending to debug the kernel, say N here. - -choice - prompt "Serial Port" - depends on KGDB - default KGDB_TTYS1 + Adds code to keep track of the number of hypervisor calls made and + the amount of time spent in hypervisor calls. Wall time spent in + each call is always calculated, and if available CPU cycles spent + are also calculated. A directory named hcall_inst is added at the + root of the debugfs filesystem. Within the hcall_inst directory + are files that contain CPU specific call statistics. -config KGDB_TTYS0 - bool "ttyS0" + This option will add a small amount of overhead to all hypervisor + calls. -config KGDB_TTYS1 - bool "ttyS1" - -config KGDB_TTYS2 - bool "ttyS2" +config PPC_EMULATED_STATS + bool "Emulated instructions tracking" + depends on DEBUG_FS + help + Adds code to keep track of the number of instructions that are + emulated by the in-kernel emulator. Counters for the various classes + of emulated instructions are available under + powerpc/emulated_instructions/ in the root of the debugfs file + system. Optionally (controlled by + powerpc/emulated_instructions/do_warn in debugfs), rate-limited + warnings can be printed to the console when instructions are + emulated. -config KGDB_TTYS3 - bool "ttyS3" +config CODE_PATCHING_SELFTEST + bool "Run self-tests of the code-patching code." + depends on DEBUG_KERNEL + default n -endchoice +config FTR_FIXUP_SELFTEST + bool "Run self-tests of the feature-fixup code." + depends on DEBUG_KERNEL + default n -config KGDB_CONSOLE - bool "Enable serial console thru kgdb port" - depends on KGDB && 8xx || CPM2 - help - If you enable this, all serial console messages will be sent - over the gdb stub. - If unsure, say N. +config MSI_BITMAP_SELFTEST + bool "Run self-tests of the MSI bitmap code." + depends on DEBUG_KERNEL + default n config XMON bool "Include xmon kernel debugger" - depends on DEBUGGER && !PPC_ISERIES + depends on DEBUG_KERNEL help Include in-kernel hooks for the xmon kernel monitor/debugger. Unless you are intending to debug the kernel, say N here. @@ -84,6 +99,8 @@ config XMON very early during boot. 'xmon=on' will just enable the xmon debugger hooks. 'xmon=off' will disable the debugger hooks if CONFIG_XMON_DEFAULT is set. + xmon will print a backtrace on the very first invocation. + 'xmon=nobt' will disable this autobacktrace. config XMON_DEFAULT bool "Enable xmon by default" @@ -92,14 +109,37 @@ config XMON_DEFAULT xmon is normally disabled unless booted with 'xmon=on'. Use 'xmon=off' to disable xmon init during runtime. +config XMON_DISASSEMBLY + bool "Include disassembly support in xmon" + depends on XMON + default y + help + Include support for disassembling in xmon. You probably want + to say Y here, unless you're building for a memory-constrained + system. + +config DEBUGGER + bool + depends on KGDB || XMON + default y + config IRQSTACKS bool "Use separate kernel stacks when processing interrupts" - depends on PPC64 help If you say Y here the kernel will use separate kernel stacks for handling hard and soft interrupts. This can help avoid overflowing the process kernel stacks. +config VIRQ_DEBUG + bool "Expose hardware/virtual IRQ mapping via debugfs" + depends on DEBUG_FS + help + This option will show the mapping relationship between hardware irq + numbers and virtual irq numbers. The mapping is exposed via debugfs + in the file powerpc/virq_mapping. + + If you don't know what this means you don't need it. + config BDI_SWITCH bool "Include BDI-2000 user context switcher" depends on DEBUG_KERNEL && PPC32 @@ -110,19 +150,148 @@ config BDI_SWITCH config BOOTX_TEXT bool "Support for early boot text console (BootX or OpenFirmware only)" - depends PPC_OF && !PPC_ISERIES + depends on PPC_OF && PPC_BOOK3S help Say Y here to see progress messages from the boot firmware in text mode. Requires either BootX or Open Firmware. -config SERIAL_TEXT_DEBUG - bool "Support for early boot texts over serial port" - depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \ - PPC_GEN550 || PPC_MPC52xx +config PPC_EARLY_DEBUG + bool "Early debugging (dangerous)" + # PPC_EARLY_DEBUG on 440 leaves AS=1 mappings above the TLB high water + # mark, which doesn't work with current 440 KVM. + depends on !KVM + help + Say Y to enable some early debugging facilities that may be available + for your processor/board combination. Those facilities are hacks + intended to debug problems early during boot, this should not be + enabled in a production kernel. + Note that enabling this will also cause the kernel default log level + to be pushed to max automatically very early during boot -config PPC_OCP - bool - depends on IBM_OCP || XILINX_OCP - default y +choice + prompt "Early debugging console" + depends on PPC_EARLY_DEBUG + help + Use the selected console for early debugging. Careful, if you + enable debugging for the wrong type of machine your kernel + _will not boot_. + +config PPC_EARLY_DEBUG_LPAR + bool "LPAR HV Console" + depends on PPC_PSERIES + help + Select this to enable early debugging for a machine with a HVC + console on vterm 0. + +config PPC_EARLY_DEBUG_G5 + bool "Apple G5" + depends on PPC_PMAC64 + help + Select this to enable early debugging for Apple G5 machines. + +config PPC_EARLY_DEBUG_RTAS_PANEL + bool "RTAS Panel" + depends on PPC_RTAS + help + Select this to enable early debugging via the RTAS panel. + +config PPC_EARLY_DEBUG_RTAS_CONSOLE + bool "RTAS Console" + depends on PPC_RTAS + select UDBG_RTAS_CONSOLE + help + Select this to enable early debugging via the RTAS console. + +config PPC_EARLY_DEBUG_MAPLE + bool "Maple real mode" + depends on PPC_MAPLE + help + Select this to enable early debugging for Maple. + +config PPC_EARLY_DEBUG_ISERIES + bool "iSeries HV Console" + depends on PPC_ISERIES + help + Select this to enable early debugging for legacy iSeries. You need + to hit "Ctrl-x Ctrl-x" to see the messages on the console. + +config PPC_EARLY_DEBUG_PAS_REALMODE + bool "PA Semi real mode" + depends on PPC_PASEMI + help + Select this to enable early debugging for PA Semi. + Output will be on UART0. + +config PPC_EARLY_DEBUG_BEAT + bool "Beat HV Console" + depends on PPC_CELLEB + select PPC_UDBG_BEAT + help + Select this to enable early debugging for Celleb with Beat. + +config PPC_EARLY_DEBUG_44x + bool "Early serial debugging for IBM/AMCC 44x CPUs" + depends on 44x + help + Select this to enable early debugging for IBM 44x chips via the + inbuilt serial port. If you enable this, ensure you set + PPC_EARLY_DEBUG_44x_PHYSLOW below to suit your target board. + +config PPC_EARLY_DEBUG_40x + bool "Early serial debugging for IBM/AMCC 40x CPUs" + depends on 40x + help + Select this to enable early debugging for IBM 40x chips via the + inbuilt serial port. This works on chips with a 16550 compatible + UART. Xilinx chips with uartlite cannot use this option. + +config PPC_EARLY_DEBUG_CPM + bool "Early serial debugging for Freescale CPM-based serial ports" + depends on SERIAL_CPM + select PIN_TLB if PPC_8xx + help + Select this to enable early debugging for Freescale chips + using a CPM-based serial port. This assumes that the bootwrapper + has run, and set up the CPM in a particular way. + +config PPC_EARLY_DEBUG_USBGECKO + bool "Early debugging through the USB Gecko adapter" + depends on GAMECUBE_COMMON + select USBGECKO_UDBG + help + Select this to enable early debugging for Nintendo GameCube/Wii + consoles via an external USB Gecko adapter. + +endchoice + +config PPC_EARLY_DEBUG_44x_PHYSLOW + hex "Low 32 bits of early debug UART physical address" + depends on PPC_EARLY_DEBUG_44x + default "0x40000200" + help + You probably want 0x40000200 for ebony boards and + 0x40000300 for taishan + +config PPC_EARLY_DEBUG_44x_PHYSHIGH + hex "EPRN of early debug UART physical address" + depends on PPC_EARLY_DEBUG_44x + default "0x1" + +config PPC_EARLY_DEBUG_40x_PHYSADDR + hex "Early debug UART physical address" + depends on PPC_EARLY_DEBUG_40x + default "0xef600300" + +config PPC_EARLY_DEBUG_CPM_ADDR + hex "CPM UART early debug transmit descriptor address" + depends on PPC_EARLY_DEBUG_CPM + default "0xfa202008" if PPC_EP88XC + default "0xf0001ff8" if CPM2 + default "0xff002008" if CPM1 + help + This specifies the address of the transmit descriptor + used for early debug output. Because it is needed before + platform probing is done, all platforms selected must + share the same address. endmenu