From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C18513851C18; Thu, 2 Jul 2020 06:04:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C18513851C18 From: "sebastian.huber@embedded-brains.de" To: gdb-prs@sourceware.org Subject: [Bug sim/26194] New: sim/igen generates code leading to linker errors with -fno-common (GCC 10 default) Date: Thu, 02 Jul 2020 06:04:38 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gdb X-Bugzilla-Component: sim X-Bugzilla-Version: HEAD X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: sebastian.huber@embedded-brains.de X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter cc target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gdb-prs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-prs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Jul 2020 06:04:38 -0000 https://sourceware.org/bugzilla/show_bug.cgi?id=3D26194 Bug ID: 26194 Summary: sim/igen generates code leading to linker errors with -fno-common (GCC 10 default) Product: gdb Version: HEAD Status: UNCONFIRMED Severity: normal Priority: P2 Component: sim Assignee: unassigned at sourceware dot org Reporter: sebastian.huber@embedded-brains.de CC: vapier at gentoo dot org Target Milestone: --- For example building the v850 simulator for the v850-rtems target results w= ith a GCC 10 build compiler: make[3]: Entering directory '/scratch/git-rtems-source-builder/rtems/build/v850-rtems6-gdb-4e394b2-x86_= 64-linux-gnu-1/build/sim/v850' gcc -O2 -g -pipe -I/scratch/git-rtems-source-builder/rtems/build/tmp/sb-10000/6/rtems-v850/b= uild/rtems/6/include -DHAVE_CONFIG_H -DWITH_DEFAULT_ALIGNMENT=3DNONSTRICT_ALIGNMENT -DWITH_TARGET_WORD_BITSIZE=3D32 -DWITH_TARGET_WORD_MSB=3D31 -DWITH_TARGET_BYTE_ORDER=3DBFD_ENDIAN_LITTLE -DDEFAULT_INLINE=3D0 -DWITH_RESERVED_BITS=3D1 -Wall -Wdeclaration-after-statement -Wpointer-ari= th -Wpointer-sign -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wmissing-prototypes -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type -Wold-style-declaration -Wold-style-definition -Wformat-nonliteral -DDEBUG -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850/../../newlib/lib= c/sys/sysnecv850 -I. -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850 -I../common -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850/../common -I../../include -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850/../../include -I../../bfd -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850/../../bfd -I../../opcodes -I../../../sourceware-mirror-binutils-gdb-4e394b2/sim/v850/../../opcodes -g -O2 -L/scratch/git-rtems-source-builder/rtems/build/tmp/sb-10000/6/rtems-v850/b= uild/rtems/6/lib -o run \ nrun.o libsim.a ../../bfd/libbfd.a ../../opcodes/libopcodes.a=20 ../../libiberty/libiberty.a -ldl -L../../zlib -lz=20=20 /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: libsim.a(idecode.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtem= s6-gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: multiple definition of `idecode_issue'; libsim.a(irun.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtems6-= gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: first defined here /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: libsim.a(engine.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtems= 6-gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: multiple definition of `idecode_issue'; libsim.a(irun.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtems6-= gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: first defined here /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: libsim.a(support.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtem= s6-gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: multiple definition of `idecode_issue'; libsim.a(irun.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtems6-= gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: first defined here /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: libsim.a(semantics.o):/scratch/git-rtems-source-builder/rtems/build/v850-rt= ems6-gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: multiple definition of `idecode_issue'; libsim.a(irun.o):/scratch/git-rtems-source-builder/rtems/build/v850-rtems6-= gdb-4e394b2-x86_64-linux-gnu-1/build/sim/v850/idecode.h:71: first defined here We have: tail ./sim/v850/idecode.h (SIM_DESC sd, instruction_word instruction_0, instruction_address cia); instruction_address (*idecode_issue) (SIM_DESC sd, instruction_word instruction_0, instruction_address cia); #endif /* _IDECODE_H_*/ This is probably generated by (sim/igen/gen-idecode.c): void print_idecode_issue_function_header (lf *file, const char *processor, function_decl_type decl_type, int nr_prefetched_words) --=20 You are receiving this mail because: You are on the CC list for the bug.=