Buildresult: powerpc-next/powernv_defconfig+STRICT_RWX/powerpc-gcc5 built on Mar 8 2022, 23:55

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

🌟 kisskb is no longer producing new builds, old results are still available.

Status:	OK
Date/Time:	Mar 8 2022, 23:55
Duration:	0:01:10.558481
Builder:	ka4
Revision:	powerpc/64: Force inlining of prevent_user_access() and set_kuap() (`792993919349fefba20f58ae4843c80e8b01f518)`
Target:	powerpc-next/powernv_defconfig+STRICT_RWX/powerpc-gcc5
Branch:	powerpc-next
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	powernv_defconfig+STRICT_RWX (download)
Log:	Download original Possible warnings (1) .config:4085:warning: override: reassigning to symbol RELOCATABLE Full Log # git rev-parse -q --verify 792993919349fefba20f58ae4843c80e8b01f518^{commit} 792993919349fefba20f58ae4843c80e8b01f518 already have revision, skipping fetch # git checkout -q -f -B kisskb 792993919349fefba20f58ae4843c80e8b01f518 # git clean -qxdf # < git log -1 # commit 792993919349fefba20f58ae4843c80e8b01f518 # Author: Christophe Leroy <christophe.leroy@csgroup.eu> # Date: Fri Feb 11 15:16:51 2022 +0100 # # powerpc/64: Force inlining of prevent_user_access() and set_kuap() # # A ppc64_defconfig build exhibits about 10 copied of # prevent_user_access(). It also have one copy of set_kuap(). # # c000000000017340 <.prevent_user_access.constprop.0>: # c00000000001a038: 4b ff d3 09 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001aabc: 4b ff c8 85 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001ab38: 4b ff c8 09 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001ade0: 4b ff c5 61 bl c000000000017340 <.prevent_user_access.constprop.0> # c000000000039b90 <.prevent_user_access.constprop.0>: # c00000000003ac08: 4b ff ef 89 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003b9d0: 4b ff e1 c1 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003ba54: 4b ff e1 3d bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003bbfc: 4b ff df 95 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000015dde0 <.prevent_user_access.constprop.0>: # c0000000001612c0: 4b ff cb 21 bl c00000000015dde0 <.prevent_user_access.constprop.0> # c000000000161b54: 4b ff c2 8d bl c00000000015dde0 <.prevent_user_access.constprop.0> # c000000000188cf0 <.prevent_user_access.constprop.0>: # c00000000018d658: 4b ff b6 99 bl c000000000188cf0 <.prevent_user_access.constprop.0> # c00000000030fe20 <.prevent_user_access.constprop.0>: # c0000000003123d4: 4b ff da 4d bl c00000000030fe20 <.prevent_user_access.constprop.0> # c000000000313970: 4b ff c4 b1 bl c00000000030fe20 <.prevent_user_access.constprop.0> # c0000000005e6bd0 <.prevent_user_access.constprop.0>: # c0000000005e7d8c: 4b ff ee 45 bl c0000000005e6bd0 <.prevent_user_access.constprop.0> # c0000000007bcae0 <.prevent_user_access.constprop.0>: # c0000000007bda10: 4b ff f0 d1 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007bda54: 4b ff f0 8d bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007bdd28: 4b ff ed b9 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007c0390: 4b ff c7 51 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c00000000094e4f0 <.prevent_user_access.constprop.0>: # c000000000950e40: 4b ff d6 b1 bl c00000000094e4f0 <.prevent_user_access.constprop.0> # c00000000097d2d0 <.prevent_user_access.constprop.0>: # c0000000009813fc: 4b ff be d5 bl c00000000097d2d0 <.prevent_user_access.constprop.0> # c000000000acd540 <.prevent_user_access.constprop.0>: # c000000000ad1d60: 4b ff b7 e1 bl c000000000acd540 <.prevent_user_access.constprop.0> # c000000000e5d680 <.prevent_user_access.constprop.0>: # c000000000e64b60: 4b ff 8b 21 bl c000000000e5d680 <.prevent_user_access.constprop.0> # c000000000e64b6c: 4b ff 8b 15 bl c000000000e5d680 <.prevent_user_access.constprop.0> # c000000000e64c38: 4b ff 8a 49 bl c000000000e5d680 <.prevent_user_access.constprop.0> # # When building signal_64.c with -Winline the following messages appear: # # ./arch/powerpc/include/asm/book3s/64/kup.h:331:20: error: inlining failed in call to 'set_kuap': call is unlikely and code size would grow [-Werror=inline] # ./arch/powerpc/include/asm/book3s/64/kup.h:401:20: error: inlining failed in call to 'prevent_user_access.constprop': call is unlikely and code size would grow [-Werror=inline] # # Those functions are used on hot pathes and have been # expected to be inlined at all time. # # Force them inline. # # This patch reduces the kernel text size by 700 bytes, confirming # that not inlining those functions is not worth it. # # Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/eff9b2b211957fa2e8707e46f31674097fd563a3.1644588972.git.christophe.leroy@csgroup.eu # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 792993919349fefba20f58ae4843c80e8b01f518 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- powernv_defconfig # Added to kconfig CONFIG_RELOCATABLE=n # Added to kconfig CONFIG_STRICT_KERNEL_RWX=y # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:4085:warning: override: reassigning to symbol RELOCATABLE # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 # Build took: 0:01:10.558481

© Michael Ellerman 2006-2018.