On Tue, 18 Apr 2023 at 11:04, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Mon, Apr 17, 2023 at 02:29:41PM +0200, Anders Roxell wrote: > > Hi, > > > > I would like to see these patches backported. They are needed so perf > > can be cross compiled with gcc on v5.15, v5.10 and v5.4. > > I built it with tuxmake [1] here are two example commandlines: > > tuxmake --runtime podman --target-arch arm64 --toolchain gcc-12 --kconfig defconfig perf > > tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-12 --kconfig defconfig perf > > > > Tried to build perf with both gcc-11 and gcc-12. > > > > Patch 'tools perf: Fix compilation error with new binutils' > > and 'tools build: Add feature test for init_disassemble_info API changes' > > didn't apply cleanly, thats why I send these in a patchset. > > > > When apply 'tools build: Add feature test for > > init_disassemble_info API changes' to 5.4 it will be a minor merge > > conflict, do you want me to send this patch in two separate patches one > > for 5.4 and another for v5.10? > > > > The sha for these two patches in mainline are. > > cfd59ca91467 tools build: Add feature test for init_disassemble_info API changes > > 83aa0120487e tools perf: Fix compilation error with new binutils > > > > The above patches solves these: > > util/annotate.c: In function 'symbol__disassemble_bpf': > > util/annotate.c:1729:9: error: too few arguments to function 'init_disassemble_info' > > 1729 | init_disassemble_info(&info, s, > > | ^~~~~~~~~~~~~~~~~~~~~ > > > > > > Please apply these to v5.10 and v5.4 > > a45b3d692623 tools include: add dis-asm-compat.h to handle version differences > > d08c84e01afa perf sched: Cast PTHREAD_STACK_MIN to int as it may turn into sysconf(__SC_THREAD_STACK> > > > > The above patches solves these: > > /home/anders/src/kernel/stable-5.10/tools/include/linux/kernel.h:43:24: error: comparison of distinct pointer types lacks a cast [-Werror] > > 43 | (void) (&_max1 == &_max2); \ > > | ^~ > > builtin-sched.c:673:34: note: in expansion of macro 'max' > > 673 | (size_t) max(16 * 1024, PTHREAD_STACK_MIN)); > > | ^~~ > > > > > > Please apply these to v5.15, v5.10 and v5.4 > > 8e8bf60a6754 perf build: Fixup disabling of -Wdeprecated-declarations for the python scripting engine > > 4ee3c4da8b1b perf scripting python: Do not build fail on deprecation warnings > > 63a4354ae75c perf scripting perl: Ignore some warnings to keep building with perl headers > > Can you please provide patch series of these upstream commits backported > to the relevant branchs that you wish to see them in? You have 2 > patches in this series without git commit ids, and I have no idea where > to apply them, or not apply them... Yes, apologies, I will get that fixed up. > > Or better yet, just use the latest version of perf as was pointed out, > on these old kernel releases. Makes sense, we can do this. Is this the preferred way going forward? Cheers, Anders
