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From: "sebastian.huber@embedded-brains.de" <sourceware-bugzilla@sourceware.org>
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 [thread overview]
Message-ID: <bug-26194-4717@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=26194
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 with
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/build/rtems/6/include
-DHAVE_CONFIG_H -DWITH_DEFAULT_ALIGNMENT=NONSTRICT_ALIGNMENT
-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31
-DWITH_TARGET_BYTE_ORDER=BFD_ENDIAN_LITTLE -DDEFAULT_INLINE=0
-DWITH_RESERVED_BITS=1 -Wall -Wdeclaration-after-statement -Wpointer-arith
-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/libc/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/build/rtems/6/lib
-o run \
nrun.o libsim.a ../../bfd/libbfd.a ../../opcodes/libopcodes.a
../../libiberty/libiberty.a -ldl -L../../zlib -lz
/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-rtems6-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-rtems6-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-rtems6-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-rtems6-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)
--
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next reply other threads:[~2020-07-02 6:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 6:04 sebastian.huber@embedded-brains.de [this message]
2020-07-02 12:35 ` [Bug sim/26194] " simark at simark dot ca
2020-07-02 15:45 ` sebastian.huber@embedded-brains.de
2020-07-02 15:58 ` simark at simark dot ca
2020-07-03 19:04 ` cvs-commit at gcc dot gnu.org
2020-07-03 19:05 ` sebastian.huber@embedded-brains.de
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