• Arnaldo Carvalho de Melo's avatar
    tools headers UAPI: Sync x86 arch prctl headers with the kernel sources · 8326c79d
    Arnaldo Carvalho de Melo authored
    To pick the changes in this cset:
    
      980fe2fd ("x86/fpu: Extend fpu_xstate_prctl() with guest permissions")
    
    This picks these new prctls:
    
      $ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/before
      $ cp arch/x86/include/uapi/asm/prctl.h tools/arch/x86/include/uapi/asm/prctl.h
      $ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/after
      $ diff -u /tmp/before /tmp/after
      --- /tmp/before	2022-01-19 14:40:05.049394977 -0300
      +++ /tmp/after	2022-01-19 14:40:35.628154565 -0300
      @@ -9,6 +9,8 @@
       	[0x1021 - 0x1001]= "GET_XCOMP_SUPP",
       	[0x1022 - 0x1001]= "GET_XCOMP_PERM",
       	[0x1023 - 0x1001]= "REQ_XCOMP_PERM",
      +	[0x1024 - 0x1001]= "GET_XCOMP_GUEST_PERM",
      +	[0x1025 - 0x1001]= "REQ_XCOMP_GUEST_PERM",
       };
    
       #define x86_arch_prctl_codes_2_offset 0x2001
      $
    
    With this 'perf trace' can translate those numbers into strings and use
    the strings in filter expressions:
    
      # perf trace -e prctl
           0.000 ( 0.011 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9c014b7df5)     = 0
           0.032 ( 0.002 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9bb6b51580)     = 0
           5.452 ( 0.003 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfeb70) = 0
           5.468 ( 0.002 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfea70) = 0
          24.494 ( 0.009 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f562a32ae28) = 0
          24.540 ( 0.002 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f563c6d4b30) = 0
         670.281 ( 0.008 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30805c8) = 0
         670.293 ( 0.002 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30800f0) = 0
      ^C#
    
    This addresses these perf build warnings:
    
      Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/prctl.h' differs from latest version at 'arch/x86/include/uapi/asm/prctl.h'
      diff -u tools/arch/x86/include/uapi/asm/prctl.h arch/x86/include/uapi/asm/prctl.h
    
    Cc: Paolo Bonzini <pbonzini@redhat.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    8326c79d
prctl.h 618 Bytes