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With this support kernel can save function call chain log into a persistent ram buffer that can be decoded and dumped after reboot through pstore filesystem. It can be used to determine what function was last called before a reset or panic. We store the log in a binary format and then decode it at read time. p.s. Mostly the code comes from trace_persistent.c driver found in the Android git tree, written by Colin Cross <ccross@android.com> (according to sign-off history). I reworked the driver a little bit, and ported it to pstore. Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 lines
214 B
Makefile
12 lines
214 B
Makefile
#
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# Makefile for the linux pstorefs routines.
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#
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obj-y += pstore.o
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pstore-objs += inode.o platform.o
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obj-$(CONFIG_PSTORE_FTRACE) += ftrace.o
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ramoops-objs += ram.o ram_core.o
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obj-$(CONFIG_PSTORE_RAM) += ramoops.o
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