litmus-rt.git - The LITMUS^RT kernel.

	Commit message (Collapse)	Author	Age
*	powerpc/ftrace: Implement raw syscall tracepoints on PowerPC	Ian Munsie	2011-05-25
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This patch implements the raw syscall tracepoints on PowerPC and exports them for ftrace syscalls to use. To minimise reworking existing code, I slightly re-ordered the thread info flags such that the new TIF_SYSCALL_TRACEPOINT bit would still fit within the 16 bits of the andi. instruction's UI field. The instructions in question are in /arch/powerpc/kernel/entry_{32,64}.S to and the _TIF_SYSCALL_T_OR_A with the thread flags to see if system call tracing is enabled. In the case of 64bit PowerPC, arch_syscall_addr and arch_syscall_match_sym_name are overridden to allow ftrace syscalls to work given the unusual system call table structure and symbol names that start with a period. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
*	powerpc: Use correct ccr bit for syscall error status	Nathan Lynch	2010-03-19
\| \| \| \| \| \| \| \| \| \|	The powerpc implementations of syscall_get_error and syscall_set_return_value should use CCR0:S0 (0x10000000) for testing and setting syscall error status. Fortunately these APIs don't seem to be used at the moment. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
*	powerpc: Move include files to arch/powerpc/include/asm	Stephen Rothwell	2008-08-03
	from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>