building head -r338675 with devel/amd64-gcc: /usr/local/x86_64-unknown-freebsd12.0/bin/ld: warning: -z ifunc-noplt ignored
In looking into another report about using devel/amd64-gcc to buld head I tried a build of -r338675 ( with WERROR= ). It got: --- kernel.full --- linking kernel.full /usr/local/x86_64-unknown-freebsd12.0/bin/ld: warning: -z ifunc-noplt ignored. ctfmerge -L VERSION -g -o kernel.full ... textdata bss dec hex filename 23518632117710305673808 409634702710d8e kernel.full Building /usr/obj/amd64_xtoolchain-gcc/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/kernel.debug Building /usr/obj/amd64_xtoolchain-gcc/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/kernel -- >>> Kernel build for GENERIC-NODBG completed on Thu Sep 20 18:38:29 PDT 2018 -- Question: Is ignoring "-z ifunc-noplt" a problem for using what is built? === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar) ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
devel/xtoolchain-llvm70 based buildkernel for head -r338675 fails: if_fxp.c:1630:3: error: array index -1 is before the beginning of the array
This was targeting amd64.
--- if_fxp.o ---
/usr/src/sys/dev/fxp/if_fxp.c:1630:3: error: array index -1 is before the
beginning of the array [-Werror,-Warray-bounds]
cbp->tbd[-1].tb_size = htole32(m->m_pkthdr.tso_segsz << 16);
^~~
/usr/src/sys/dev/fxp/if_fxpreg.h:297:3: note: array 'tbd' declared here
struct fxp_tbd tbd[FXP_NTXSEG + 1];
^
1 error generated.
*** [if_fxp.o] Error code 1
make[4]: stopped in /usr/src/sys/modules/fxp
.ERROR_TARGET='if_fxp.o'
.ERROR_META_FILE='/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/modules/usr/src/sys/modules/fxp/if_fxp.o.meta'
.MAKE.LEVEL='4'
MAKEFILE=''
.MAKE.MODE='meta missing-filemon=yes missing-meta=yes silent=yes verbose'
_ERROR_CMD='/usr/local/bin/clang70 -target x86_64-unknown-freebsd12.0
--sysroot=/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp
-B/var/empty -O2 -pipe -fno-strict-aliasing -Werror -D_KERNEL -DKLD_MODULE
-DKLD_TIED -nostdinc -DHAVE_KERNEL_OPTION_HEADERS -include
/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/opt_global.h
-I. -I/usr/src/sys -I/usr/src/sys/contrib/ck/include -fno-common -g
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
-I/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG
-mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse -msoft-float
-fno-asynchronous-unwind-tables -ffreestanding -fwrapv -fstack-protector
-gdwarf-2 -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes
-Wmissing-prototypes -Wpointer-arith -Wcast-qual -Wundef -Wno-pointer-sign
-D__printf__=__freebsd_kprintf__ -Wmissing-include-dirs
-fdiagnostics-show-option -Wno-unknown-pragmas -Wno-error-tautological-compa
re -Wno-error-empty-body -Wno-error-parentheses-equality
-Wno-error-unused-function -Wno-error-pointer-sign
-Wno-error-shift-negative-value -Wno-address-of-packed-member -mno-aes
-mno-avx -std=iso9899:1999 -c /usr/src/sys/dev/fxp/if_fxp.c -o if_fxp.o;
ctfconvert -L VERSION -g if_fxp.o;'
.CURDIR='/usr/src/sys/modules/fxp'
.MAKE='make'
.OBJDIR='/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/modules/usr/src/sys/modules/fxp'
.TARGETS='all'
DESTDIR=''
LD_LIBRARY_PATH=''
MACHINE='amd64'
MACHINE_ARCH='amd64'
MAKEOBJDIRPREFIX='/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/modules'
MAKESYSPATH='/usr/src/share/mk'
MAKE_VERSION='20180512'
PATH='/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp/legacy/usr/sbin:/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp/legacy/usr/bin:/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp/legacy/bin:/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp/usr/sbin:/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/tmp/usr/bin:/sbin:/bin:/usr/sbin:/usr/bin'
SRCTOP='/usr/src'
OBJTOP='/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG/modules/usr/src'
.MAKE.MAKEFILES='/usr/src/share/mk/sys.mk /usr/src/share/mk/local.sys.env.mk
/usr/src/share/mk/src.sys.env.mk
/root/src.configs/src.conf.amd64-xtoolchain-llvm.amd64-host
/usr/src/share/mk/bsd.mkopt.mk /usr/src/share/mk/src.sys.obj.mk
/usr/src/share/mk/auto.obj.mk /usr/src/share/mk/bsd.suffixes.mk
/root/src.configs/make.conf /usr/src/share/mk/local.sys.mk
/usr/src/share/mk/src.sys.mk /dev/null /usr/src/sys/modules/fxp/Makefile
/usr/src/share/mk/bsd.kmod.mk /usr/src/sys/conf/kmod.mk
/usr/src/share/mk/bsd.init.mk /usr/src/share/mk/bsd.opts.mk
/usr/src/share/mk/bsd.cpu.mk /usr/src/share/mk/local.init.mk
/usr/src/share/mk/src.init.mk /usr/src/sys/modules/fxp/../Makefile.inc
/usr/src/share/mk/bsd.own.mk /usr/src/share/mk/bsd.compiler.mk
/usr/src/share/mk/bsd.linker.mk /usr/src/sys/conf/kern.opts.mk
/usr/src/sys/conf/config.mk /usr/src/share/mk/bsd.links.mk
/usr/src/share/mk/bsd.dep.mk /usr/src/share/mk/bsd.clang-analyze.mk
/usr/src/share/mk/bsd.obj.mk /usr/src/share/mk/bsd.subdir.mk /usr/s
rc/sys/conf/kern.mk'
.PATH='. /usr/src/sys/modules/fxp /usr/src/sys/dev/fxp
/usr/obj/amd64_xtoolchain-llvm/amd64.amd64/usr/src/amd64.amd64/sys/GENERIC-NODBG'
1 error
/usr/src/sys/dev/fxp/if_fxpreg.h:297 is in:
struct fxp_cb_tx {
uint16_t cb_status;
uint16_t cb_command;
uint32_t link_addr;
uint32_t tbd_array_addr;
uint16_t byte_count;
uint8_t tx_threshold;
uint8_t tbd_number;
/*
* The following structure isn't actually part of the TxCB,
* unless the extended TxCB feature is being used. In this
* case, the first two elements of the structure below are
* fetched along with the TxCB.
*/
union {
struct fxp_ipcb ipcb;
struct fxp_tbd tbd[FXP_NTXSEG + 1];
} tx_cb_u;
};
/usr/src/sys/dev/fxp/if_fxp.c:1630 is in:
/* Configure TSO. */
if (m->m
Re: svn commit: r480180 - in head/devel: . xtoolchain-llvm70 [FYI: 2 ABI changes compared to older clangs]
When I looked at http://releases.llvm.org/7.0.0/tools/clang/docs/ReleaseNotes.html I found notes about 2 ABI breakages compared to clang 6 and before: QUOTE • Clang’s handling of the GCC packed class attribute in C++ has been fixed to apply only to non-static data members and not to base classes. This fixes an ABI difference between Clang and GCC, but creates an ABI difference between Clang 7 and earlier versions. The old behavior can be restored by setting -fclang-abi-compat to 6 or lower. • Clang implements the proposed resolution of LWG issue 2358, along with the corresponding change to the Itanium C++ ABI, which make classes containing only unnamed non-zero-length bit-fields be considered non-empty. This is an ABI break compared to prior Clang releases, but makes Clang generate code that is ABI-compatible with other compilers. The old behavior can be restored by setting -fclang-abi-compat to 6 or lower. END QUOTE Also it reports: QUOTE libc++ Changes Users that wish to link together translation units built with different versions of libc++’s headers into the same final linked image should define the _LIBCPP_HIDE_FROM_ABI_PER_TU macro to 1 when building those translation units. In a future release, not defining _LIBCPP_HIDE_FROM_ABI_PER_TU to 1 and linking translation units built with different versions of libc++’s headers together may lead to ODR violations and ABI issues. END QUOTE === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar) ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
