Linux Kernel https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v4.10.13 2016-11-18T17:23:17Z 2016-11-18T17:23:17Z Pratyush Anand panand@redhat.com 2016-11-14T14:02:42Z urn:sha1:651be3cb085341a21847e47c694c249c3e1e4e5b We only support breakpoint/watchpoint of length 1, 2, 4 and 8. If we can support other length as well, then user may watch more data with less number of watchpoints (provided hardware supports it). For example: if we have to watch only 4th, 5th and 6th byte from a 64 bit aligned address, we will have to use two slots to implement it currently. One slot will watch a half word at offset 4 and other a byte at offset 6. If we can have a watchpoint of length 3 then we can watch it with single slot as well. ARM64 hardware does support such functionality, therefore adding these new definitions in generic layer. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 2012-11-19T22:21:03Z David Howells dhowells@redhat.com 2012-11-19T22:21:03Z urn:sha1:d2709c7ce4c513ab7f4ca9a106a930621811f2d3 Make perf build for x86 once the UAPI disintegration patches for that arch have been applied by adding the appropriate -I flags - in the right order - and then converting some #includes that use ../.. notation to find main kernel headerfiles to use <asm/foo.h> and <linux/foo.h> instead. Note that -Iarch/foo/include/uapi is present _before_ -Iarch/foo/include. This makes sure we get the userspace version of the pt_regs struct. Ideally, we wouldn't have the latter -I flag at all, but unfortunately we want asm/svm.h and asm/vmx.h in builtin-kvm.c and these aren't part of the UAPI - at least not for x86. I wonder if the bits outside of the __KERNEL__ guards *should* be transferred there. I note also that perf seems to do its dependency handling manually by listing all the header files it might want to use in LIB_H in the Makefile. Can this be changed to use -MD? Note that to do make this work, we need to export and UAPI disintegrate linux/hw_breakpoint.h, which I think should've been exported previously so that perf can access the bits. We have to do this in the same patch to maintain bisectability. Signed-off-by: David Howells <dhowells@redhat.com>