On Sat, Mar 15, 2014 at 05:40:44AM +0000, AKASHI Takahiro wrote: > Recordmcount utility under scripts is run, after compiling each object, > to find out all the locations of calling _mcount() and put them into > specific seciton named __mcount_loc. > Then linker collects all such information into a table in the kernel image > (between __start_mcount_loc and __stop_mcount_loc) for later use by ftrace. > > This patch adds arm64 specific definitions to identify such locations. > There are two types of implementation, C and Perl. On arm64, only C version > is used to build the kernel now that CONFIG_HAVE_C_RECORDMCOUNT is on. > But Perl version is also maintained. > > This patch also contains a workaround just in case where a header file, > elf.h, on host machine doesn't have definitions of EM_AARCH64 nor > R_AARCH64_ABS64. Without them, compiling C version of recordmcount will > fail. > > Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org>
Acked-by: Will Deacon <will.dea...@arm.com> Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
