# git rev-parse -q --verify e27f421503972af88df6af77d0059bad0aa7616a^{commit}
e27f421503972af88df6af77d0059bad0aa7616a
already have revision, skipping fetch
# git checkout -q -f -B kisskb e27f421503972af88df6af77d0059bad0aa7616a
# git clean -qxdf
# < git log -1
# commit e27f421503972af88df6af77d0059bad0aa7616a
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Mon Jun 10 20:25:18 2024 +0900
# 
#     kbuild: merge temporary vmlinux for BTF and kallsyms
#     
#     CONFIG_DEBUG_INFO_BTF=y requires one additional link step.
#     (.tmp_vmlinux.btf)
#     
#     CONFIG_KALLSYMS=y requires two additional link steps.
#     (.tmp_vmlinux.kallsyms1 and .tmp_vmlinux.kallsyms2)
#     
#     Enabling both requires three additional link steps.
#     
#     When CONFIG_DEBUG_INFO_BTF=y and CONFIG_KALLSYMS=y, the current build
#     process is as follows:
#     
#         KSYMS   .tmp_vmlinux.kallsyms0.S
#         AS      .tmp_vmlinux.kallsyms0.o
#         LD      .tmp_vmlinux.btf             # temporary vmlinux for BTF
#         BTF     .btf.vmlinux.bin.o
#         LD      .tmp_vmlinux.kallsyms1       # temporary vmlinux for kallsyms step 1
#         NM      .tmp_vmlinux.kallsyms1.syms
#         KSYMS   .tmp_vmlinux.kallsyms1.S
#         AS      .tmp_vmlinux.kallsyms1.o
#         LD      .tmp_vmlinux.kallsyms2       # temporary vmlinux for kallsyms step 2
#         NM      .tmp_vmlinux.kallsyms2.syms
#         KSYMS   .tmp_vmlinux.kallsyms2.S
#         AS      .tmp_vmlinux.kallsyms2.o
#         LD      vmlinux                      # final vmlinux
#     
#     This is redundant because the BTF generation and the kallsyms step 1 can
#     be performed against the same temporary vmlinux.
#     
#     When both CONFIG_DEBUG_INFO_BTF and CONFIG_KALLSYMS are enabled, we can
#     reduce the number of link steps by one.
#     
#     This commit changes the build process as follows:
#     
#         KSYMS   .tmp_vmlinux0.kallsyms.S
#         AS      .tmp_vmlinux0.kallsyms.o
#         LD      .tmp_vmlinux1                # temporary vmlinux for BTF and kallsyms step 1
#         BTF     .tmp_vmlinux1.btf.o
#         NM      .tmp_vmlinux1.syms
#         KSYMS   .tmp_vmlinux1.kallsyms.S
#         AS      .tmp_vmlinux1.kallsyms.o
#         LD      .tmp_vmlinux2                # temporary vmlinux for kallsyms step 2
#         NM      .tmp_vmlinux2.syms
#         KSYMS   .tmp_vmlinux2.kallsyms.S
#         AS      .tmp_vmlinux2.kallsyms.o
#         LD      vmlinux                      # final vmlinux
#     
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
#     Acked-by: Andrii Nakryiko <andrii@kernel.org>
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 e27f421503972af88df6af77d0059bad0aa7616a
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/kbuild_defconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  defconfig
# < make -s -j 160 ARCH=sparc64 O=/kisskb/build/kbuild_defconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/kbuild_defconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 160 ARCH=sparc64 O=/kisskb/build/kbuild_defconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sparc/prom/p1275.c:52:6: warning: no previous prototype for 'prom_cif_init' [-Wmissing-prototypes]
   52 | void prom_cif_init(void *cif_handler, void *cif_stack)
      |      ^~~~~~~~~~~~~
/kisskb/src/arch/sparc/prom/misc_64.c:165:5: warning: no previous prototype for 'prom_get_mmu_ihandle' [-Wmissing-prototypes]
  165 | int prom_get_mmu_ihandle(void)
      |     ^~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:254:1: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
  254 | __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:282:1: warning: no previous prototype for '__vdso_clock_gettime_stick' [-Wmissing-prototypes]
  282 | __vdso_clock_gettime_stick(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:307:1: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
  307 | __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:343:1: warning: no previous prototype for '__vdso_gettimeofday_stick' [-Wmissing-prototypes]
  343 | __vdso_gettimeofday_stick(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld: warning: arch/sparc/vdso/vdso-note.o: missing .note.GNU-stack section implies executable stack
/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
In file included from /kisskb/src/arch/sparc/vdso/vdso32/vclock_gettime.c:22:
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:254:1: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
  254 | __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:282:1: warning: no previous prototype for '__vdso_clock_gettime_stick' [-Wmissing-prototypes]
  282 | __vdso_clock_gettime_stick(clockid_t clock, struct __kernel_old_timespec *ts)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:307:1: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
  307 | __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:343:1: warning: no previous prototype for '__vdso_gettimeofday_stick' [-Wmissing-prototypes]
  343 | __vdso_gettimeofday_stick(struct __kernel_old_timeval *tv, struct timezone *tz)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld: warning: arch/sparc/vdso/vdso32/vdso-note.o: missing .note.GNU-stack section implies executable stack
/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
Is "_mcount" prototyped in <asm/asm-prototypes.h>?
Completed OK
# rm -rf /kisskb/build/kbuild_defconfig_sparc64-gcc13
# Build took: 0:01:36.279431