Buildresult: powerpc-next/powernv_defconfig+STRICT_RWX/powerpc-gcc5 built on Aug 20 2023, 00:26

kisskb

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Status:	Failed
Date/Time:	Aug 20 2023, 00:26
Duration:	0:01:28.204260
Builder:	ka4
Revision:	powerpc/ftrace: Add support for -fpatchable-function-entry (`cad771f9a27ef0f598026c6902b1d0be733194a9)`
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 errors arch/powerpc/kernel/trace/ftrace_entry.S:255: Error: unrecognized opcode: `export_symbol(_mcount)' make[6]: * [scripts/Makefile.build:360: arch/powerpc/kernel/trace/ftrace_entry.o] Error 1 make[5]: * [scripts/Makefile.build:480: arch/powerpc/kernel/trace] Error 2 make[4]: * [scripts/Makefile.build:480: arch/powerpc/kernel] Error 2 make[3]: * [scripts/Makefile.build:480: arch/powerpc] Error 2 make[2]: * [Makefile:2032: .] Error 2 make[1]: * [Makefile:234: __sub-make] Error 2 make: * [Makefile:234: __sub-make] Error 2 Possible warnings (1) .config:4271:warning: override: reassigning to symbol RELOCATABLE Full Log # git rev-parse -q --verify cad771f9a27ef0f598026c6902b1d0be733194a9^{commit} cad771f9a27ef0f598026c6902b1d0be733194a9 already have revision, skipping fetch # git checkout -q -f -B kisskb cad771f9a27ef0f598026c6902b1d0be733194a9 # git clean -qxdf # < git log -1 # commit cad771f9a27ef0f598026c6902b1d0be733194a9 # Author: Naveen N Rao <naveen@kernel.org> # Date: Mon Jun 19 15:17:34 2023 +0530 # # powerpc/ftrace: Add support for -fpatchable-function-entry # # GCC v13.1 updated support for -fpatchable-function-entry on ppc64le to # emit nops after the local entry point, rather than before it. This # allows us to use this in the kernel for ftrace purposes. A new script is # added under arch/powerpc/tools/ to help detect if nops are emitted after # the function local entry point, or before the global entry point. # # With -fpatchable-function-entry, we no longer have the profiling # instructions generated at function entry, so we only need to validate # the presence of two nops at the ftrace location in ftrace_init_nop(). We # patch the preceding instruction with 'mflr r0' to match the # -mprofile-kernel ABI for subsequent ftrace use. # # This changes the profiling instructions used on ppc32. The default -pg # option emits an additional 'stw' instruction after 'mflr r0' and before # the branch to _mcount 'bl _mcount'. This is very similar to the original # -mprofile-kernel implementation on ppc64le, where an additional 'std' # instruction was used to save LR to its save location in the caller's # stackframe. Subsequently, this additional store was removed in later # compiler versions for performance reasons. The same reasons apply for # ppc32 so we only patch in a 'mflr r0'. # # Signed-off-by: Naveen N Rao <naveen@kernel.org> # Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://msgid.link/68586d22981a2c3bb45f27a2b621173d10a7d092.1687166935.git.naveen@kernel.org # < /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 cad771f9a27ef0f598026c6902b1d0be733194a9 # make -s -j 40 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 40 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 40 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:4271:warning: override: reassigning to symbol RELOCATABLE # make -s -j 40 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- /kisskb/src/arch/powerpc/kernel/trace/ftrace_entry.S: Assembler messages: /kisskb/src/arch/powerpc/kernel/trace/ftrace_entry.S:255: Error: unrecognized opcode: `export_symbol(_mcount)' make[6]: * [/kisskb/src/scripts/Makefile.build:360: arch/powerpc/kernel/trace/ftrace_entry.o] Error 1 make[5]: * [/kisskb/src/scripts/Makefile.build:480: arch/powerpc/kernel/trace] Error 2 make[5]: * Waiting for unfinished jobs.... make[4]: * [/kisskb/src/scripts/Makefile.build:480: arch/powerpc/kernel] Error 2 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:480: arch/powerpc] Error 2 make[3]: * Waiting for unfinished jobs.... make[2]: * [/kisskb/src/Makefile:2032: .] Error 2 make[1]: * [/kisskb/src/Makefile:234: __sub-make] Error 2 make: *** [Makefile:234: __sub-make] Error 2 Command 'make -s -j 40 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- ' returned non-zero exit status 2. # rm -rf /kisskb/build/powerpc-next_powernv_defconfig+STRICT_RWX_powerpc-gcc5 # Build took: 0:01:28.204260

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