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The lbasename function from libiberty provides the same API as this
custom function. The common/ code already made the switch, so make
the same change to the ppc code to avoid target duplication.
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Use a local name in the macro to avoid shadowing wherever it's used.
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Move these options up to the common dir so we only test & export
them once across all ports.
The ppc code needs a little extra care with its trace settings as
it's not exactly the same API as the common code. The other knobs
are the same though.
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Building a gdb that includes the PPC sim in C++ mode fails to link with:
(...)s.o compile-object-load.o compile-object-run.o compile-loc2c.o compile-c-support.o inflow.o init.o \
../sim/ppc/libsim.a ../readline/libreadline.a ../opcodes/libopcodes.a ../bfd/libbfd.a -lz ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -ldl -ldl -lncurses -lm -ldl -lguile-2.0 -lgc -lpthread -ldl -lutil -lm -lpython2.7 -Xlinker -export-dynamic -lexpat -llzma -lbabeltrace -lbabeltrace-ctf ../libiberty/libiberty.a build-gnulib/import/libgnu.a
../sim/ppc/libsim.a(sim_calls.o): In function `sim_open':
/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:73: undefined reference to `printf_filtered'
/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:73: undefined reference to `printf_filtered'
../sim/ppc/libsim.a(sim_calls.o): In function `sim_close':
/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:93: undefined reference to `printf_filtered'
/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:93: undefined reference to `printf_filtered'
../sim/ppc/libsim.a(sim_calls.o): In function `sim_load':
/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:102: undefined reference to `printf_filtered'
../sim/ppc/libsim.a(sim_calls.o):/home/pedro/gdb/mygit/cxx-convertion/src/sim/ppc/sim_calls.c:102: more undefined references to `printf_filtered' follow
collect2: error: ld returned 1 exit status
The undefined references come from TRACE macro calls, which expand to
calls to printf_filtered.
But note that the sim's 'printf_filtered' is actually a #define to
'sim_io_printf_filtered', in sim_callbacks.h :
#define printf_filtered sim_io_printf_filtered
AFAICS, this is not meant to call gdb's printf_filtered function. The
ChangeLog entry that added the printf_filtered macro reads:
Tue Jul 30 21:12:24 1996 Andrew Cagney <cagney@kremvax.highland.com.au>
* sim_callbacks.h (sim_io_printf_filtered): Replace
printf_filtered with a local simulator specific version. Add
#define printf_filtered to simplify updating of existing code.
That is, just another incomplete/partial transition. Maybe prior to
1996 this was really meant to call gdb's printf_filtered version.
The reference to printf_filtered appears because sim_calls.c, the
compilation unit that fails to link, has this at the top:
#undef printf_filtered /* blow away the mapping */
presumably so that this further below:
void
sim_io_printf_filtered(const char *fmt,
...)
{
(...)
callbacks->printf_filtered(callbacks, "%s", message);
}
works. So those TRACE macros instances in sim_calls.c just happen to
work because gdb is linked in, which satisfies the 'printf_filtered'
reference, when GDB is built in C mode. When built in C++ mode, the
problem is exposed, as GDB's printf_filtered is mangled.
The fix here is to make the TRACE macro call sim_io_printf_filtered
directly.
(Standalone "run" doesn't fail to link simply because the offending
routines are not part of its link.)
sim/ppc/ChangeLog
2015-11-17 Pedro Alves <palves@redhat.com>
* debug.h (TRACE, ITRACE, DTRACE, DITRACE, PTRACE): Call
sim_io_printf_filtered instead of printf_filtered.
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sim/ChangeLog:
Update old contact info in GPL license notices.
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gdb/sim/ChangeLog:
Update the non-FSF-copyrighted files in sim to GPLv3 or later.
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* configure: Regenerated.
* configure.ac: Add test for System V shared memory and semaphore.
* debug.c, debug.h: Add trace support for new devices.
* hw_sem.c, hw_shm.c: New files.
* Makefile.in: Add hw_sem.c and hw_shm.c.
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changes once again to speed things up
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