BMC/Intel-BMC/linux.git/arch/arm/include/asm/ftrace.h, branch dev

ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h

2014-09-26T13:40:03+00:00

With compilers which follow the C99 standard (like modern versions of gcc and clang), "extern inline" does the wrong thing (emits code for an externally linkable version of the inline function). In this case using static inline and removing the NULL version of return_address in return_address.c does the right thing. Signed-off-by: Behan Webster Reviewed-by: Mark Charlebois Acked-by: Steven Rostedt Signed-off-by: Russell King

arm/ftrace: fix ftrace_return_addr() to ftrace_return_address()

2014-06-18T11:40:55+00:00

The clean up of CALLER_ADDR*() functions required the archs to either use the default __builtin_return_address(X) (where X > 0) or override it with something the arch can use. To override it, the arch would define ftrace_return_address(x). The arm architecture requires this to be redefined but instead of defining ftrace_return_address(x) it defined ftrace_return_addr(x). Fixes: eed542d6962b (ftrace: Make CALLER_ADDRx macros more generic) Reported-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Signed-off-by: Steven Rostedt Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

ftrace: Make CALLER_ADDRx macros more generic

2014-05-21T07:10:32+00:00

Most archs with HAVE_ARCH_CALLER_ADDR have pretty much the same definitions of CALLER_ADDRx(n). Instead of duplicating the code for all the archs, define a ftrace_return_address0() and ftrace_return_address(n) that can be overwritten by the archs if they need to do something different. Instead of 7 macros in every arch, we now only have at most 2 (and actually only 1 as ftrace_return_address0() should be the same for all archs). The CALLER_ADDRx(n) will now be defined in linux/ftrace.h and use the ftrace_return_address*(n?) macros. This removes a lot of the duplicate code. Link: http://lkml.kernel.org/p/1400585464-30333-1-git-send-email-takahiro.akashi@linaro.org Signed-off-by: AKASHI Takahiro Signed-off-by: Steven Rostedt

ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace

2010-09-02T14:28:43+00:00

Handle the different nop and call instructions for Thumb-2. Also, we need to adjust the recorded mcount_loc addresses because they have the lsb set. Cc: Catalin Marinas Acked-by: Steven Rostedt [recordmcount.pl change] Signed-off-by: Rabin Vincent Signed-off-by: Russell King

ARM: 6318/1: ftrace: fix and update dynamic ftrace

2010-09-02T14:27:40+00:00

This adds mcount recording and updates dynamic ftrace for ARM to work with the new ftrace dyamic tracing implementation. It also adds support for the mcount format used by newer ARM compilers. With dynamic tracing, mcount() is implemented as a nop. Callsites are patched on startup with nops, and dynamically patched to call to the ftrace_caller() routine as needed. Acked-by: Steven Rostedt [recordmcount.pl change] Signed-off-by: Rabin Vincent Signed-off-by: Russell King

Merge branch 'devel-stable' into devel

2009-09-12T11:02:26+00:00

Conflicts: MAINTAINERS arch/arm/mm/fault.c

[ARM] support tracing when using newer compilers

2009-08-13T18:34:36+00:00

Since gcc 4.4 the name and calling convention for function profiling on ARM changed. With this patch both types are supported. See http://sourceware.org/ml/libc-ports/2008-04/msg00009.html for some details. Lightly-Tested-by: Anand Gadiyar Tested-by: Kevin Hilman Signed-off-by: Uwe Kleine-König

[ARM] 5613/1: implement CALLER_ADDRESSx

2009-07-21T16:21:28+00:00

From: Uwe Kleine-König As __builtin_return_address(n) doesn't work for ARM with n > 0, the kernel needs its own implementation. This fixes many warnings saying: warning: unsupported argument to '__builtin_return_address' The new methods and walk_stackframe must not be instrumented because CALLER_ADDRESSx is used in the various tracers and tracing the tracer is a bad idea. What's currently missing is an implementation using unwind tables. This is not fatal though, it's just that the tracers don't get enough information to be really useful. Note that if both ARM_UNWIND and FRAME_POINTER are enabled, walk_stackframe uses unwind information. So in this case the same implementation is used as when FRAME_POINTER is disabled. Cc: Catalin Marinas Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King

ftrace: rename FTRACE to FUNCTION_TRACER

2008-10-20T16:27:03+00:00

Due to confusion between the ftrace infrastructure and the gcc profiling tracer "ftrace", this patch renames the config options from FTRACE to FUNCTION_TRACER. The other two names that are offspring from FTRACE DYNAMIC_FTRACE and FTRACE_MCOUNT_RECORD will stay the same. This patch was generated mostly by script, and partially by hand. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar

[ARM] move include/asm-arm to arch/arm/include/asm

2008-08-02T20:32:35+00:00

Move platform independent header files to arch/arm/include/asm, leaving those in asm/arch* and asm/plat* alone. Signed-off-by: Russell King