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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 14:04:53 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 14:04:53 +1100 |
| commit | 9ff9a26b786c35ee8d2a66222924a807ec851a9f (patch) | |
| tree | db432a17bccca1ca2c16907f0ee83ac449ed4012 /arch/arm/Kconfig.debug | |
| parent | 0a3108beea9143225119d5e7c72a8e2c64f3eb7d (diff) | |
| parent | 0d34fb8e93ceba7b6dad0062dbb4a0813bacd75b (diff) | |
Merge commit 'origin/master' into next
Manual merge of:
arch/powerpc/include/asm/elf.h
drivers/i2c/busses/i2c-mpc.c
Diffstat (limited to 'arch/arm/Kconfig.debug')
| -rw-r--r-- | arch/arm/Kconfig.debug | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 192ee01a9ba..a71fd941ade 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -2,18 +2,29 @@ menu "Kernel hacking" source "lib/Kconfig.debug" -# RMK wants arm kernels compiled with frame pointers so hardwire this to y. +# RMK wants arm kernels compiled with frame pointers or stack unwinding. # If you know what you are doing and are willing to live without stack # traces, you can get a slightly smaller kernel by setting this option to # n, but then RMK will have to kill you ;). config FRAME_POINTER bool - default y + default y if !ARM_UNWIND help If you say N here, the resulting kernel will be slightly smaller and - faster. However, when a problem occurs with the kernel, the - information that is reported is severely limited. Most people - should say Y here. + faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, + when a problem occurs with the kernel, the information that is + reported is severely limited. + +config ARM_UNWIND + bool "Enable stack unwinding support" + depends on AEABI && EXPERIMENTAL + default y + help + This option enables stack unwinding support in the kernel + using the information automatically generated by the + compiler. The resulting kernel image is slightly bigger but + the performance is not affected. Currently, this feature + only works with EABI compilers. If unsure say Y. config DEBUG_USER bool "Verbose user fault messages" @@ -66,7 +77,7 @@ config DEBUG_ICEDCC Say Y here if you want the debug print routines to direct their output to the EmbeddedICE macrocell's DCC channel using co-processor 14. This is known to work on the ARM9 style ICE - channel. + channel and on the XScale with the PEEDI. It does include a timeout to ensure that the system does not totally freeze when there is nothing connected to read. |