# git rev-parse -q --verify e5d523f1ae8f2cef01f8e071aeee432654166708^{commit}
e5d523f1ae8f2cef01f8e071aeee432654166708
already have revision, skipping fetch
# git checkout -q -f -B kisskb e5d523f1ae8f2cef01f8e071aeee432654166708
# git clean -qxdf
# < git log -1
# commit e5d523f1ae8f2cef01f8e071aeee432654166708
# Author: Nick Desaulniers <ndesaulniers@google.com>
# Date:   Thu Jul 14 13:56:43 2022 -0700
# 
#     ubsan: disable UBSAN_DIV_ZERO for clang
#     
#     Building with UBSAN_DIV_ZERO with clang produces numerous fallthrough
#     warnings from objtool.
#     
#     In the case of uncheck division, UBSAN_DIV_ZERO may introduce new
#     control flow to check for division by zero.
#     
#     Because the result of the division is undefined, LLVM may optimize the
#     control flow such that after the call to __ubsan_handle_divrem_overflow
#     doesn't matter.  If panic_on_warn was set,
#     __ubsan_handle_divrem_overflow would panic.
#     
#     The problem is is that panic_on_warn is run time configurable.  If it's
#     disabled, then we cannot guarantee that we will be able to recover
#     safely.  Disable this config for clang until we can come up with a
#     solution in LLVM.
#     
#     Link: https://github.com/ClangBuiltLinux/linux/issues/1657
#     Link: https://github.com/llvm/llvm-project/issues/56289
#     Link: https://lore.kernel.org/lkml/CAHk-=wj1qhf7y3VNACEexyp5EbkNpdcu_542k-xZpzmYLOjiCg@mail.gmail.com/
#     Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
#     Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
#     Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
#     Acked-by: Nathan Chancellor <nathan@kernel.org>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 e5d523f1ae8f2cef01f8e071aeee432654166708
# < make -s -j 40 ARCH=sh O=/kisskb/build/linus_sh-allyesconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  allyesconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 40 ARCH=sh O=/kisskb/build/linus_sh-allyesconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 40 ARCH=sh O=/kisskb/build/linus_sh-allyesconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 40 ARCH=sh O=/kisskb/build/linus_sh-allyesconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/machvec.c: In function 'sh_mv_setup':
/kisskb/src/arch/sh/kernel/machvec.c:105:33: error: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Werror=array-bounds]
  105 |                         sh_mv = *(struct sh_machine_vector *)&__machvec_start;
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /kisskb/src/arch/sh/kernel/machvec.c:13:
/kisskb/src/arch/sh/include/asm/sections.h:7:13: note: while referencing '__machvec_start'
    7 | extern long __machvec_start, __machvec_end;
      |             ^~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:249: arch/sh/kernel/machvec.o] Error 1
make[3]: *** Waiting for unfinished jobs....
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Assembler messages:
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:85: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:357: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:360: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
In file included from /kisskb/src/arch/sh/include/asm/hw_irq.h:6,
                 from /kisskb/src/include/linux/irq.h:594,
                 from /kisskb/src/include/asm-generic/hardirq.h:17,
                 from /kisskb/src/arch/sh/include/asm/hardirq.h:9,
                 from /kisskb/src/include/linux/hardirq.h:11,
                 from /kisskb/src/include/linux/interrupt.h:11,
                 from /kisskb/src/include/linux/serial_core.h:13,
                 from /kisskb/src/include/linux/serial_sci.h:6,
                 from /kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:11:
/kisskb/src/include/linux/sh_intc.h:100:63: error: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Werror=sizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:105:31: note: in expansion of macro '_INTC_ARRAY'
  105 |         _INTC_ARRAY(vectors), _INTC_ARRAY(groups),      \
      |                               ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: error: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Werror=sizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:106:9: note: in expansion of macro '_INTC_ARRAY'
  106 |         _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
      |         ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: error: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Werror=sizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |         ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: error: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Werror=sizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:249: arch/sh/kernel/cpu/sh2/setup-sh7619.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [/kisskb/src/scripts/Makefile.build:466: arch/sh/kernel/cpu/sh2] Error 2
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/kisskb/src/scripts/Makefile.build:466: arch/sh/kernel/cpu] Error 2
make[2]: *** [/kisskb/src/scripts/Makefile.build:466: arch/sh/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1843: arch/sh] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 40 ARCH=sh O=/kisskb/build/linus_sh-allyesconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sh-allyesconfig_sh4-gcc11
# Build took: 0:01:16.699100