Guo Ren 28bb030f93 csky/ftrace: Add dynamic function tracer (include graph tracer) ... Support dynamic ftrace including dynamic graph tracer. Gcc-csky with -pg will produce call site in every function prologue and we can use these call site to hook trace function. gcc with -pg origin call site: push lr jbsr _mcount nop32 nop32 If the (callee - caller)'s offset is in range of bsr instruction, we'll modify code with: push lr bsr _mcount nop32 nop32 Else if the (callee - caller)'s offset is out of bsr instrunction, we'll modify code with: push lr movih r26, ... ori r26, ... jsr r26 (r26 is reserved for jsr link reg in csky abiv2 spec.) Signed-off-by: Guo Ren <ren_guo@c-sky.com>		2019-04-22 13:44:57 +08:00
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abiv1	arch/csky patches for 4.21-rc1	2019-01-05 09:50:07 -08:00
abiv2	csky/ftrace: Add dynamic function tracer (include graph tracer)	2019-04-22 13:44:57 +08:00
boot	csky: use common dtb build rules	2018-11-01 10:52:27 +08:00
configs
include	csky/ftrace: Add dynamic function tracer (include graph tracer)	2019-04-22 13:44:57 +08:00
kernel	csky/ftrace: Add dynamic function tracer (include graph tracer)	2019-04-22 13:44:57 +08:00
lib	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
mm	treewide: add checks for the return value of memblock_alloc*()	2019-03-12 10:04:02 -07:00
Kconfig	csky/ftrace: Add dynamic function tracer (include graph tracer)	2019-04-22 13:44:57 +08:00
Kconfig.debug	csky: remove builtin-dtb Kbuild	2018-11-01 10:52:26 +08:00
Makefile	csky: Fixup vdsp&fpu issues in kernel	2019-04-22 13:44:57 +08:00