BMC/Intel-BMC/linux.git/arch/arm64/kernel/arm64ksyms.c, branch dev

arm64: Add ftrace support

2014-05-29T08:08:08+00:00

This patch implements arm64 specific part to support function tracers, such as function (CONFIG_FUNCTION_TRACER), function_graph (CONFIG_FUNCTION_GRAPH_TRACER) and function profiler (CONFIG_FUNCTION_PROFILER). With 'function' tracer, all the functions in the kernel are traced with timestamps in ${sysfs}/tracing/trace. If function_graph tracer is specified, call graph is generated. The kernel must be compiled with -pg option so that _mcount() is inserted at the beginning of functions. This function is called on every function's entry as long as tracing is enabled. In addition, function_graph tracer also needs to be able to probe function's exit. ftrace_graph_caller() & return_to_handler do this by faking link register's value to intercept function's return path. More details on architecture specific requirements are described in Documentation/trace/ftrace-design.txt. Reviewed-by: Ganapatrao Kulkarni Acked-by: Will Deacon Signed-off-by: AKASHI Takahiro Signed-off-by: Will Deacon

arm64: lib: Implement optimized string length routines

2014-05-23T14:17:12+00:00

This patch, based on Linaro's Cortex Strings library, adds an assembly optimized strlen() and strnlen() functions. Signed-off-by: Zhichang Yuan Signed-off-by: Deepak Saxena Signed-off-by: Catalin Marinas

arm64: lib: Implement optimized string compare routines

2014-05-23T14:16:59+00:00

This patch, based on Linaro's Cortex Strings library, adds an assembly optimized strcmp() and strncmp() functions. Signed-off-by: Zhichang Yuan Signed-off-by: Deepak Saxena Signed-off-by: Catalin Marinas

arm64: lib: Implement optimized memcmp routine

2014-05-23T14:07:57+00:00

This patch, based on Linaro's Cortex Strings library, adds an assembly optimized memcmp() function. Signed-off-by: Zhichang Yuan Signed-off-by: Deepak Saxena Signed-off-by: Catalin Marinas

arm64: use generic strnlen_user and strncpy_from_user functions

2013-12-19T17:43:06+00:00

This patch implements the word-at-a-time interface for arm64 using the same algorithm as ARM. We use the fls64 macro, which expands to a clz instruction via a compiler builtin. Big-endian configurations make use of the implementation from asm-generic. With this implemented, we can replace our byte-at-a-time strnlen_user and strncpy_from_user functions with the optimised generic versions. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: Export __copy_in_user() to modules

2013-10-24T14:47:19+00:00

This function may be called from loadable modules, so it needs exporting. Signed-off-by: Catalin Marinas Reported-by: Loc Ho

arm64: kernel: compiling issue, need 'EXPORT_SYMBOL(clear_page)'

2013-05-24T16:31:03+00:00

Need 'EXPORT_SYMBOL(clear_page)' if building with allmodconfig. The related errors: ERROR: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] undefined! ERROR: "clear_page" [fs/ntfs/ntfs.ko] undefined! ERROR: "clear_page" [fs/gfs2/gfs2.ko] undefined! ERROR: "clear_page" [fs/fuse/fuse.ko] undefined! ERROR: "clear_page" [fs/ext3/ext3.ko] undefined! ERROR: "clear_page" [fs/ext2/ext2.ko] undefined! ERROR: "clear_page" [fs/exofs/libore.ko] undefined! ERROR: "clear_page" [fs/exofs/exofs.ko] undefined! ERROR: "clear_page" [drivers/block/brd.ko] undefined! Signed-off-by: Chen Gang Signed-off-by: Catalin Marinas

arm64: klib: Optimised atomic bitops

2013-03-21T17:39:31+00:00

This patch implements the AArch64-specific atomic bitops functions using exclusive memory accesses to avoid locking. Signed-off-by: Catalin Marinas

arm64: klib: Optimised string functions

2013-03-21T17:39:30+00:00

This patch introduces AArch64-specific string functions (strchr, strrchr). Signed-off-by: Catalin Marinas

arm64: klib: Optimised memory functions

2013-03-21T17:39:29+00:00

This patch introduces AArch64-specific memory functions (memcpy, memmove, memchr, memset). These functions are not optimised for any CPU implementation but can be used as a starting point once hardware is available. Signed-off-by: Catalin Marinas