Hi Segher! On Mon, 2022-12-12 18:26:13 -0600, Segher Boessenkool <seg...@kernel.crashing.org> wrote: > On Mon, Dec 12, 2022 at 10:51:17PM +0100, Jan-Benedict Glaw wrote: [...] > > For PPC, a good number of those fail, > > and I probably don't understand PPC well enough to propose patches. Or > > did I pick wrongly targeted toolchains? Most of the time, my suspicion > > is that we're not giving the correct -m<cpu> flags in > > ./arch/powerpc/boot/? (My setup for doing test builds is fairly automated, > > I > > can easily throw in patches for testing.) > > Many of those use a 32-bit toolchain with a 64-bit kernel, or they > require some e500 specific config but not getting it (or the other way > around). > > > 64-bit.config > > > ==> Why "-m32 -mcpu=powerpc"? Binutils/GCC are for > > --target=powerpc64-linux > > Something in your config is forcing that.
That's a configuration that should not have been built. As Michael wrote, it's just a fragment for a defconfig, I queued it for a build but that was plain wrong. (As well as other *.config files.) > > Compiler ICEs (during GIMPLE pass: ccp) in align.c: > > > > powerpc-linux-gcc -Wp,-MMD,arch/powerpc/kernel/.align.o.d -nostdinc > > -I./arch/powerpc/include -I./arch/powerpc/include/generated -I./include > > -I./arch/powerpc/include/uapi -I./arch/powerpc/include/generated/uapi > > -I./include/uapi -I./include/generated/uapi -include > > ./include/linux/compiler-version.h -include ./include/linux/kconfig.h > > -include ./include/linux/compiler_types.h -D__KERNEL__ -I ./arch/powerpc > > -fmacro-prefix-map=./= -Wall -Wundef -Werror=strict-prototypes > > -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE > > -Werror=implicit-function-declaration -Werror=implicit-int > > -Werror=return-type -Wno-format-security -std=gnu11 -mbig-endian -m32 > > -msoft-float -pipe -ffixed-r2 -mmultiple -mno-readonly-in-sdata -mcpu=440 > > -mno-prefixed -mno-pcrel -mno-altivec -mno-vsx -mno-mma > > -fno-asynchronous-unwind-tables -mno-string -Wa,-m440 -mbig-endian > > -mstack-protector-guard=tls -mstack-protector-guard-reg=r2 > > -fno-delete-null-pointer-checks -Wno-frame-address -Wno-format-truncation > > -Wno-format-overflow -Wno-address-of-packed-member -O2 > > -fno-allow-store-data-races -Wframe-larger-than=1024 > > -fstack-protector-strong -Wno-main -Wno-unused-but-set-variable > > -Wno-unused-const-variable -Wno-dangling-pointer -fomit-frame-pointer > > -ftrivial-auto-var-init=zero -fno-stack-clash-protection > > -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wcast-function-type > > -Wno-stringop-truncation -Wno-stringop-overflow -Wno-restrict > > -Wno-maybe-uninitialized -Wno-alloc-size-larger-than > > -Wimplicit-fallthrough=5 -fno-strict-overflow -fno-stack-check > > -fconserve-stack -Werror=date-time -Werror=incompatible-pointer-types > > -Werror=designated-init -Wno-packed-not-aligned -g > > -mstack-protector-guard-offset=1080 -Werror > > -DKBUILD_MODFILE='"arch/powerpc/kernel/align"' -DKBUILD_BASENAME='"align"' > > -DKBUILD_MODNAME='"align"' -D__KBUILD_MODNAME=kmod_align -c -o > > arch/powerpc/kernel/align.o arch/powerpc/kernel/align.c > > during GIMPLE pass: ccp > > arch/powerpc/kernel/align.c: In function > > '__copy_inst_from_kernel_nofault': > > arch/powerpc/kernel/align.c:364:1: internal compiler error: in > > maybe_register_def, at tree-into-ssa.cc:1948 > > 364 | } > > | ^ > > 0x19d8886 internal_error(char const*, ...) > > ???:0 > > 0x7bb4fe fancy_abort(char const*, int, char const*) > > ???:0 > > 0x1791bfe dom_walker::walk(basic_block_def*) > > ???:0 > > 0xe94ec0 update_ssa(unsigned int) > > ???:0 > > 0x103d6b9 execute_update_addresses_taken() > > ???:0 > > Please submit a full bug report, with preprocessed source (by using > > -freport-bug). > > Please include the complete backtrace with any bug report. > > See <https://gcc.gnu.org/bugs/> for instructions. > > make[3]: *** [scripts/Makefile.build:250: arch/powerpc/kernel/align.o] > > Error 1 > > make[2]: *** [scripts/Makefile.build:500: arch/powerpc/kernel] Error 2 > > make[1]: *** [scripts/Makefile.build:500: arch/powerpc] Error 2 > > make: *** [Makefile:1992: .] Error 2 > > > > ==> Should probably open a PR for this. > > Yes please! I'll wait until the current build loop finishes. Looking at __copy_inst_from_kernel_nofault(), it uses an asm goto, which I had issues with and there was already a fix for it (7676235f690e624b7ed41a22b22ce8ccfac1492f, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107997) which might fix all of those. Thanks, Jan-Benedict --
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