On 4/30/20 12:01 PM, Alex Bennée wrote: > From: KONRAD Frederic <frederic.kon...@adacore.com> > > Currently "cf-core.xml" is sent to GDB when using any m68k flavor. Thing is > it uses the "org.gnu.gdb.coldfire.core" feature name and gdb 8.3 then expects > a coldfire FPU instead of the default m68881 FPU. > > This is not OK because the m68881 floats registers are 96 bits wide so it > crashes GDB with the following error message: > > (gdb) target remote localhost:7960 > Remote debugging using localhost:7960 > warning: Register "fp0" has an unsupported size (96 bits) > warning: Register "fp1" has an unsupported size (96 bits) > ... > Remote 'g' packet reply is too long (expected 148 bytes, got 180 bytes): \ > 00000000000[...]0000 > > With this patch: qemu-system-m68k -M none -cpu m68020 -s -S > > (gdb) tar rem :1234 > Remote debugging using :1234 > warning: No executable has been specified and target does not support > determining executable automatically. Try using the "file" command. > 0x00000000 in ?? () > (gdb) p $fp0 > $1 = nan(0xffffffffffffffff) > > Signed-off-by: KONRAD Frederic <frederic.kon...@adacore.com> > Signed-off-by: Alex Bennée <alex.ben...@linaro.org> > Message-Id: <1588094279-17913-3-git-send-email-frederic.kon...@adacore.com> > ---
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
