Date: Tue, 27 Dec 2016 08:28:13 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 215600] devel/powerpc64-gcc based buildkernel: sys/powerpc/powerpc/db_trace.c rejected for: '__builtin_frame_address' with a nonzero argument is unsafe Message-ID: <bug-215600-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215600 Bug ID: 215600 Summary: devel/powerpc64-gcc based buildkernel: sys/powerpc/powerpc/db_trace.c rejected for: '__builtin_frame_address' with a nonzero argument is unsafe Product: Base System Version: CURRENT Hardware: powerpc OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: markmi@dsl-only.net [This was for head -r310556 via devel/powerpc64-gcc (6.2.0 based gcc), found while testing an unrelated patch that let the buildkernel get this far under 6.2.0's vintage.] sys/powerpc/powerpc/db_trace.c 's: void db_trace_self(void) { db_addr_t addr; addr =3D (db_addr_t)__builtin_frame_address(1); db_backtrace(curthread, addr, -1); } ended up with: --- db_trace.o --- /usr/src/sys/powerpc/powerpc/db_trace.c: In function 'db_trace_self': /usr/src/sys/powerpc/powerpc/db_trace.c:299:20: error: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Werror=3Dframe-address] addr =3D (db_addr_t)__builtin_frame_address(1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ . . . --- db_trace.o --- cc1: all warnings being treated as errors *** [db_trace.o] Error code 1 make[2]: stopped in /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/sys/GENE= RIC64vtsc-NODBG .ERROR_TARGET=3D'db_trace.o' .ERROR_META_FILE=3D'/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerp= c64/usr/src/sys/GENERIC64vtsc-NODBG/db_trace.o.meta' Note: sys/powerpc/powerpc/db_trace.c -r132070 2004-Jul-12 is when this __builtin_frame_address use was introduced. # Meta data file /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/sys/GENE= RIC64vtsc-NODBG/db_trace.o.meta CMD /usr/local/bin/powerpc64-unknown-freebsd12.0-gcc -isystem /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/usr/= include -L/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/us= r/lib -B/usr/obj/powerpc64vtsc_xtoolchain_kernel/powe rpc.powerpc64/usr/src/tmp/usr/lib --sysroot=3D/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/= src/tmp -B/usr/local/powerpc64-freebsd/bin/ -c -O -pipe -g -nostdinc -I. -I/usr/src/sys -I/usr/src/sys/contrib/libfdt -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -includ e opt_global.h -msoft-float -Wa,-many -fPIC -fno-omit-frame-pointer -mno-altivec -ffreestanding -fwrapv -fstack-protector -gdwarf-2 -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -Wundef -Wno-pointer- sign -fformat-extensions -Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas -Wno-error=3Daddress -Wno-error=3Daggressive-loop-optimizations -Wno-error=3Darray-bounds -Wno-error=3Dattributes -Wno-error=3Dcast-qual -Wno-error=3Denum-compare -Wno-error=3Dinline -Wno-erro r=3Dmaybe-uninitialized -Wno-error=3Doverflow -Wno-error=3Dsequence-point -Wno-error=3Dstrict-overflow -Wno-error=3Dunused-but-set-variable -Wno-error=3Dmisleading-indentation -Wno-error=3Dnonnull-compare -Wno-error=3Dshift-overflow -Wno-error=3Dtautological-compare -v -fno-comm= on -fms-ext ensions -finline-limit=3D15000 --param inline-unit-growth=3D100 --param large-function-growth=3D1000 -msoft-float -mcall-aixdesc -std=3Diso9899:19= 99 -Werror /usr/src/sys/powerpc/powerpc/db_trace.c CMD ctfconvert -L VERSION -g db_trace.o CWD /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/sys/GENE= RIC64vtsc-NODBG TARGET db_trace.o -- command output -- Using built-in specs. COLLECT_GCC=3D/usr/local/bin/powerpc64-unknown-freebsd12.0-gcc Target: powerpc64-unknown-freebsd12.0 Configured with: /usr/obj/portswork/usr/ports/devel/powerpc64-gcc/work/gcc-6.2.0/configure --target=3Dpowerpc64-unknown-freebsd12.0 --disable-nls --enable-languages= =3Dc,c++ --without-headers --with-gmp=3D/usr/local --with-pkgversion=3D'FreeBSD Ports Collection for powerpc64' --wit h-system-zlib --with-gcc-include-dir=3D/usr/include/c++/v1/ --with-as=3D/usr/local/bin/powerpc64-freebsd-as --with-ld=3D/usr/local/bin/powerpc64-freebsd-ld --prefix=3D/usr/local --localstatedir=3D/var --mandir=3D/usr/local/man --infodir=3D/usr/local/inf= o/ --build=3Dx86_64-unknown-freebsd1 2.0 Thread model: posix gcc version 6.2.0 (FreeBSD Ports Collection for powerpc64) COLLECT_GCC_OPTIONS=3D'-isystem' '/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/usr= /include' '-L/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/u= sr/lib' '-B' '/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/t mp/usr/lib' '-B' '/usr/local/powerpc64-freebsd/bin/' '-c' '-O' '-pipe' '-g' '-nostdinc' '-I' '.' '-I' '/usr/src/sys' '-I' '/usr/src/sys/contrib/libfdt' '-D' '_KERNEL' '-D' 'HAVE_KERNEL_OPTION_HEADERS' '-include' 'opt_global.h' '-msoft-float' '-fPIC' '-fno-omit-frame-pointe r' '-mno-altivec' '-ffreestanding' '-fwrapv' '-fstack-protector' '-gdwarf-2' '-Wall' '-Wredundant-decls' '-Wnested-externs' '-Wstrict-prototypes' '-Wmissing-prototypes' '-Wpointer-arith' '-Winline' '-Wcast-qual' '-Wundef' '-Wno-pointer-sign' '-fformat-extensions' '-Wmissin g-include-dirs' '-fdiagnostics-show-option' '-Wno-unknown-pragmas' '-Wno-error=3Daddress' '-Wno-error=3Daggressive-loop-optimizations' '-Wno-error=3Darray-bounds' '-Wno-error=3Dattributes' '-Wno-error=3Dcast-qu= al' '-Wno-error=3Denum-compare' '-Wno-error=3Dinline' '-Wno-error=3Dmaybe-unini tialized' '-Wno-error=3Doverflow' '-Wno-error=3Dsequence-point' '-Wno-error=3Dstrict-overflow' '-Wno-error=3Dunused-but-set-variable' '-Wno-error=3Dmisleading-indentation' '-Wno-error=3Dnonnull-compare' '-Wno-error=3Dshift-overflow' '-Wno-error=3Dtautological-compare' '-v' '-fno-common' ' -fms-extensions' '-finline-limit=3D15000' '--param' 'inline-unit-growth=3D1= 00' '--param' 'large-function-growth=3D1000' '-msoft-float' '-mcall-aixdesc' '-std=3Dc99' '-Werror' /usr/local/libexec/gcc/powerpc64-unknown-freebsd12.0/6.2.0/cc1 -quiet -nostdinc -v -I . -I /usr/src/sys -I /usr/src/sys/contrib/libfdt -isysroot /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp -D _KERNEL -D HAVE_KERNEL_OPTION_HEADERS -isystem /usr/o bj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/usr/include -include opt_global.h /usr/src/sys/powerpc/powerpc/db_trace.c -quiet -dumpb= ase db_trace.c -msoft-float -mno-altivec -msoft-float -mcall-aixdesc -auxbase db_trace -g -gdwarf-2 -O -Wall -Wredundant- decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-a= rith -Winline -Wcast-qual -Wundef -Wno-pointer-sign -Wmissing-include-dirs -Wno-unknown-pragmas -Wno-error=3Daddress -Wno-error=3Daggressive-loop-optimizations -Wno-error=3Darray-bounds -Wno-error=3Dattribu tes -Wno-error=3Dcast-qual -Wno-error=3Denum-compare -Wno-error=3Dinline -Wno-error=3Dmaybe-uninitialized -Wno-error=3Doverflow -Wno-error=3Dsequenc= e-point -Wno-error=3Dstrict-overflow -Wno-error=3Dunused-but-set-variable -Wno-error=3Dmisleading-indentation -Wno-error=3Dnonnull-compare -Wno-e rror=3Dshift-overflow -Wno-error=3Dtautological-compare -Werror -std=3Dc99 = -version -fPIC -fno-omit-frame-pointer -ffreestanding -fwrapv -fstack-protector -fformat-extensions -fdiagnostics-show-option -fno-common -fms-extensions -finline-limit=3D15000 --param inline-unit-growth=3D10 0 --param large-function-growth=3D1000 -o - | /usr/local/bin/powerpc64-freebsd-as -v -I . -I /usr/src/sys -I /usr/src/sys/contrib/libfdt --traditional-format -a64 -mppc64 -many -many -o db_trace.o GNU assembler version 2.27 (powerpc64-freebsd) using BFD version (GNU Binut= ils) 2.27 GNU C99 (FreeBSD Ports Collection for powerpc64) version 6.2.0 (powerpc64-unknown-freebsd12.0) compiled by GNU C version 4.2.1 Compatible FreeBSD Clang 3.9.1 (tags/RELEASE_391/final 289601), GMP version 5.1.3, MPFR version 3.1.5, MPC version 1.0.3, isl version none GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 #include "..." search starts here: #include <...> search starts here: . /usr/src/sys /usr/src/sys/contrib/libfdt /usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/tmp/usr/= include End of search list. GNU C99 (FreeBSD Ports Collection for powerpc64) version 6.2.0 (powerpc64-unknown-freebsd12.0) compiled by GNU C version 4.2.1 Compatible FreeBSD Clang 3.9.1 (tags/RELEASE_391/final 289601), GMP version 5.1.3, MPFR version 3.1.5, MPC version 1.0.3, isl version none GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 Compiler executable checksum: b395363e48891085cf87f23546ed513a /usr/src/sys/powerpc/powerpc/db_trace.c: In function 'db_trace_self': /usr/src/sys/powerpc/powerpc/db_trace.c:299:20: error: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Werror=3Dframe-address] addr =3D (db_addr_t)__builtin_frame_address(1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ --=20 You are receiving this mail because: You are the assignee for the bug.=
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