mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-29 13:04:46 +08:00
More gcc lint:
* exec.c (ignore): Return 0.
* stack.c (return_command): Fetch lazy value directly, not via
VALUE_CONTENTS, to avoid "value computed is not used".
* inflow.c (new_tty): Move osigttou inside #if.
* remote.c (remote_fetch_registers): If remote reply is short, just
note that fact and keep going (reading extra registers as all bits 0).
(remote_store_registers): Send number of registers that were found
by remote_fetch_registers.
* m68k-tdep.c, config/m68k/tm-m68k.h, config/m68k/tm-*.h: Remove
HAVE_68881. Define CANNOT_STORE_REGISTER if ptrace() can't write
floating registers.
* config/m68k/{tm-m68k-nofp.h,m68k-nofp.mt,tm-m68k-fp.h,m68k-fp.mt}:
Remove, replaced by {tm-m68k-em.h,m68k-em.mt}.
* Makefile.in, configure.in: Change accordingly.
This commit is contained in:
Jim Kingdon
parent
5c303f64ca
commit
f46ffb9ebd
@ -1,8 +1,31 @@
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Thu Sep 9 10:18:29 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* remote-udi.c (udi_wait, case UDIStdinNeeded): Use a loop calling
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getchar() (terminated only on '\n') instead of scanf. Send the
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'\n' which terminates it to the remote system.
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More gcc lint:
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* exec.c (ignore): Return 0.
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* stack.c (return_command): Fetch lazy value directly, not via
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VALUE_CONTENTS, to avoid "value computed is not used".
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* inflow.c (new_tty): Move osigttou inside #if.
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* remote.c (remote_fetch_registers): If remote reply is short, just
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note that fact and keep going (reading extra registers as all bits 0).
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(remote_store_registers): Send number of registers that were found
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by remote_fetch_registers.
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* m68k-tdep.c, config/m68k/tm-m68k.h, config/m68k/tm-*.h: Remove
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HAVE_68881. Define CANNOT_STORE_REGISTER if ptrace() can't write
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floating registers.
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* config/m68k/{tm-m68k-nofp.h,m68k-nofp.mt,tm-m68k-fp.h,m68k-fp.mt}:
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Remove, replaced by {tm-m68k-em.h,m68k-em.mt}.
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* Makefile.in, configure.in: Change accordingly.
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Thu Sep 9 04:59:03 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
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* mipsread.c (cross_ref): Allow SGI extended symbol types as cross
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reference targets.
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* symmisc.c (print_symbol): Use TYP_TAG_NAME not TYPE_NAME to avoid
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* symmisc.c (print_symbol): Use TYPE_TAG_NAME not TYPE_NAME to avoid
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printing of identities.
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Wed Sep 8 19:18:27 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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@ -40,8 +40,7 @@ hp300hpux.mh
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hp300hpux.mt
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isi.mh
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isi.mt
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m68k-fp.mt
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m68k-nofp.mt
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m68k-em.mt
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monitor.mt
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news.mh
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news.mt
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@ -67,8 +66,7 @@ sun3os4.mh
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sun3os4.mt
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tm-3b1.h
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tm-delta68.h
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tm-m68k-fp.h
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tm-m68k-nofp.h
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tm-m68k-em.h
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tm-m68k.h
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tm-altos.h
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tm-amix.h
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@ -1,3 +1,3 @@
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# Target: Motorola 68xxx with floating point
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TDEPFILES= exec.o m68k-pinsn.o m68k-tdep.o
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TM_FILE= tm-m68k-fp.h
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TM_FILE= tm-m68k-em.h
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@ -17,6 +17,9 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* The child target can't deal with floating registers. */
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#define CANNOT_STORE_REGISTER(regno) ((regno) >= FP0_REGNUM)
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint. */
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@ -17,6 +17,9 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* The child target can't deal with floating registers. */
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#define CANNOT_STORE_REGISTER(regno) ((regno) >= FP0_REGNUM)
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint. */
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@ -18,11 +18,6 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* All Amiga's (so far) running UNIX have come standard with the floating
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point coprocessor. */
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#define HAVE_68881
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint. */
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@ -32,8 +32,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define DECR_PC_AFTER_BREAK 0
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#define HAVE_68881
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/* Not sure what happens if we try to store this register, but
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phdm@info.ucl.ac.be says we need this define. */
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#define CANNOT_STORE_REGISTER(regno) (regno == FPI_REGNUM)
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@ -22,8 +22,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define BPT_VECTOR 0xe
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#define HAVE_68881
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/* Need to get function ends by adding this to epilogue address from .bf
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record, not using x_fsize field. */
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#define FUNCTION_EPILOGUE_SIZE 4
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@ -24,8 +24,6 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define DEFAULT_PROMPT "(esgdb) "
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#define HAVE_68881
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#include "m68k/tm-m68k.h"
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/* Longjmp stuff borrowed from sun3 configuration. Don't know if correct.
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@ -21,8 +21,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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including Utah, Mt. Xinu or Berkeley variants. This is NOT for HP-UX.
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Problems to hpbsd-bugs@cs.utah.edu. */
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#define HAVE_68881
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint. */
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@ -17,8 +17,6 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define HAVE_68881
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint. */
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@ -20,8 +20,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This has not been tested on ISI's running BSD 4.2, but it will probably
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work. */
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#define HAVE_68881
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/* Data segment starts at etext rounded up to DATAROUND in {N,Z}MAGIC files */
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#define DATAROUND 0x20000
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@ -17,8 +17,6 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define HAVE_68881
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#include "m68k/tm-m68k.h"
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/* Longjmp info comes from the Sun-3 machine description. Might as well
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@ -17,12 +17,9 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Generic 68000 stuff, to be included by other tm-*.h files.
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Define HAVE_68881 if that is the case. */
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/* Generic 68000 stuff, to be included by other tm-*.h files. */
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#if defined (HAVE_68881)
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#define IEEE_FLOAT 1
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#endif
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/* Define the bit, byte, and word ordering of the machine. */
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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@ -91,28 +88,33 @@ read_memory_integer (read_register (SP_REGNUM), 4)
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#define REGISTER_TYPE long
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#if defined (HAVE_68881)
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# if defined (GDB_TARGET_IS_SUN3)
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/* Sun3 status includes fpflags, which shows whether the FPU has been used
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by the process, and whether the FPU was done with an instruction or
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was interrupted in the middle of a long instruction. See
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<machine/reg.h>. */
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/* a&d, pc,sr, fp, fpstat, fpflags */
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# define NUM_REGS 31
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# define REGISTER_BYTES (16*4 + 8 + 8*12 + 3*4 + 4)
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# else /* Not sun3. */
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# define NUM_REGS 29
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# define REGISTER_BYTES (16*4 + 8 + 8*12 + 3*4)
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# endif /* Not sun3. */
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#else /* No 68881. */
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# define NUM_REGS 18
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# define REGISTER_BYTES (16*4 + 8)
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#endif /* No 68881. */
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#define REGISTER_BYTES_SUN3 (16*4 + 8 + 8*12 + 3*4 + 4)
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#define REGISTER_BYTES_FP (16*4 + 8 + 8*12 + 3*4)
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#define REGISTER_BYTES_NOFP (16*4 + 8)
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#if defined (GDB_TARGET_IS_SUN3)
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/* Sun3 status includes fpflags, which shows whether the FPU has been used
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by the process, and whether the FPU was done with an instruction or
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was interrupted in the middle of a long instruction. See
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<machine/reg.h>. */
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/* a&d, pc,sr, fp, fpstat, fpflags */
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# define NUM_REGS 31
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# define REGISTER_BYTES (16*4 + 8 + 8*12 + 3*4 + 4)
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# define REGISTER_BYTES_OK(b) \
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((b) == REGISTER_BYTES_SUN3 \
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|| (b) == REGISTER_BYTES_FP \
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|| (b) == REGISTER_BYTES_NOFP)
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#else /* Not sun3. */
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# define NUM_REGS 29
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# define REGISTER_BYTES_OK(b) \
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((b) == REGISTER_BYTES_FP \
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|| (b) == REGISTER_BYTES_NOFP)
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# define REGISTER_BYTES (16*4 + 8 + 8*12 + 3*4)
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#endif /* Not sun3. */
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/* Index within `registers' of the first byte of the space for
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register N. */
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#if defined (HAVE_68881)
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#define REGISTER_BYTE(N) \
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((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 168 \
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: (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 12) + 72 \
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@ -181,52 +183,6 @@ extern const struct ext_format ext_format_68881;
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(N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM ? \
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lookup_pointer_type (builtin_type_void) : builtin_type_int)
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#else /* no 68881. */
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) ((N) * 4)
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/* Number of bytes of storage in the actual machine representation
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for register N. On the 68000, all regs are 4 bytes. */
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#define REGISTER_RAW_SIZE(N) 4
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/* Number of bytes of storage in the program's representation
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for register N. On the 68000, all regs are 4 bytes. */
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#define REGISTER_VIRTUAL_SIZE(N) 4
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/* Largest value REGISTER_RAW_SIZE can have. */
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#define MAX_REGISTER_RAW_SIZE 4
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE 4
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#define REGISTER_CONVERTIBLE(N) 0
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/* Convert data from raw format for register REGNUM
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to virtual format for register REGNUM. */
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) memcpy ((TO), (FROM), 4);
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/* Convert data from virtual format for register REGNUM
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to raw format for register REGNUM. */
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#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) memcpy ((TO), (FROM), 4);
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
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#endif /* No 68881. */
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/* Initializer for an array of names of registers.
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Entries beyond the first NUM_REGS are ignored. */
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@ -249,12 +205,10 @@ extern const struct ext_format ext_format_68881;
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#define SP_REGNUM 15 /* Contains address of top of stack */
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#define PS_REGNUM 16 /* Contains processor status */
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#define PC_REGNUM 17 /* Contains program counter */
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#if defined (HAVE_68881)
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#define FP0_REGNUM 18 /* Floating point register 0 */
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#define FPC_REGNUM 26 /* 68881 control register */
|
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#define FPS_REGNUM 27 /* 68881 status register */
|
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#define FPI_REGNUM 28 /* 68881 iaddr register */
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#endif /* 68881. */
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/* Store the address of the place in which to copy the structure the
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subroutine will return. This is called from call_function. */
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@ -373,15 +327,18 @@ extern const struct ext_format ext_format_68881;
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/* The CALL_DUMMY macro is the sequence of instructions, as disassembled
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by gdb itself:
|
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|
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These instructions exist only so that m68k_find_saved_regs can parse
|
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them as a "prologue"; they are never executed.
|
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|
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fmovemx fp0-fp7,sp@- 0xf227 0xe0ff
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moveml d0-a5,sp@- 0x48e7 0xfffc
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clrw sp@- 0x4267
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movew ccr,sp@- 0x42e7
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|
||||
/..* The arguments are pushed at this point by GDB;
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no code is needed in the dummy for this.
|
||||
The CALL_DUMMY_START_OFFSET gives the position of
|
||||
the following jsr instruction. *../
|
||||
The arguments are pushed at this point by GDB; no code is needed in
|
||||
the dummy for this. The CALL_DUMMY_START_OFFSET gives the position
|
||||
of the following jsr instruction. That is where we start
|
||||
executing.
|
||||
|
||||
jsr @#0x32323232 0x4eb9 0x3232 0x3232
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addal #0x69696969,sp 0xdffc 0x6969 0x6969
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||||
@ -389,28 +346,20 @@ extern const struct ext_format ext_format_68881;
|
||||
nop 0x4e71
|
||||
|
||||
Note this is CALL_DUMMY_LENGTH bytes (28 for the above example).
|
||||
We actually start executing at the jsr, since the pushing of the
|
||||
registers is done by PUSH_DUMMY_FRAME. If this were real code,
|
||||
the arguments for the function called by the jsr would be pushed
|
||||
between the moveml and the jsr, and we could allow it to execute through.
|
||||
But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is
|
||||
done, and we cannot allow the moveml to push the registers again lest
|
||||
they be taken for the arguments. */
|
||||
|
||||
#if defined (HAVE_68881)
|
||||
The dummy frame always saves the floating-point registers, whether they
|
||||
actually exist on this target or not. */
|
||||
|
||||
/* FIXME: Wrong to hardwire this as BPT_VECTOR when sometimes it
|
||||
should be REMOTE_BPT_VECTOR. We should be using
|
||||
target_insert_breakpoint (but then I think we need
|
||||
target_remove_breakpoint somewhere--easiest way to make this happen
|
||||
is to make this breakpoint a real breakpoint.c type breakpoint). */
|
||||
|
||||
#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, (0x4e404e71 | (BPT_VECTOR << 16))}
|
||||
#define CALL_DUMMY_LENGTH 28 /* Size of CALL_DUMMY */
|
||||
#define CALL_DUMMY_START_OFFSET 12 /* Offset to jsr instruction*/
|
||||
|
||||
#else
|
||||
|
||||
#define CALL_DUMMY {0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, (0x4e404e71 | (BPT_VECTOR << 16))}
|
||||
#define CALL_DUMMY_LENGTH 24 /* Size of CALL_DUMMY */
|
||||
#define CALL_DUMMY_START_OFFSET 8 /* Offset to jsr instruction*/
|
||||
|
||||
#endif /* HAVE_68881 */
|
||||
|
||||
/* Insert the specified number of args and function address
|
||||
into a call sequence of the above form stored at DUMMYNAME.
|
||||
We use the BFD routines to store a big-endian value of known size. */
|
||||
|
||||
@ -18,17 +18,14 @@ along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
/* See following cpu type determination macro to get the machine type.
|
||||
|
||||
|
||||
Here is an m-news.h file for gdb. It supports the 68881 registers.
|
||||
by hikichi@srava.sra.junet
|
||||
|
||||
* Support Sun assembly format instead of Motorola one.
|
||||
|
||||
* Ptrace for handling floating register has a bug(before NEWS OS version 2.2),
|
||||
* After NEWS OS version 3.2, some of ptrace's bug is fixed.
|
||||
But we cannot change the floating register(see adb(1) in OS 3.2) yet. */
|
||||
|
||||
#define HAVE_68881
|
||||
|
||||
/* Extract from an array REGBUF containing the (raw) register state
|
||||
a function return value of type TYPE, and copy that, in virtual format,
|
||||
into VALBUF. */
|
||||
|
||||
@ -17,6 +17,4 @@ You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#define HAVE_68881 /* GDB won't compile without this */
|
||||
|
||||
#include "m68k/tm-m68k.h"
|
||||
|
||||
@ -17,4 +17,7 @@ You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
/* The child target can't deal with floating registers. */
|
||||
#define CANNOT_STORE_REGISTER(regno) ((regno) >= FP0_REGNUM)
|
||||
|
||||
#include "m68k/tm-m68k.h"
|
||||
|
||||
@ -17,8 +17,6 @@ You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#define HAVE_68881
|
||||
|
||||
/* Let native-versus-cross support code know we are targeting sun3,
|
||||
and modify registers to include sun3 fpustate register. */
|
||||
|
||||
|
||||
@ -22,8 +22,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#define DEFAULT_PROMPT "(vxgdb) "
|
||||
|
||||
#define HAVE_68881
|
||||
|
||||
/* We have more complex, useful breakpoints on the target. */
|
||||
#define DECR_PC_AFTER_BREAK 0
|
||||
|
||||
|
||||
@ -202,9 +202,6 @@ i960-*-elf) gdb_target=nindy960 ;;
|
||||
i960-*-nindy) gdb_target=nindy960 ;;
|
||||
i960-*-vxworks) gdb_target=vxworks960 ;;
|
||||
|
||||
m68000-*-aout) gdb_target=m68k-nofp ;;
|
||||
m68000-*-coff) gdb_target=m68k-nofp ;;
|
||||
m68000-*-elf) gdb_target=m68k-nofp ;;
|
||||
m68000-*-sunos3*) gdb_target=sun2os3 ;;
|
||||
m68000-*-sunos4*) gdb_target=sun2os4 ;;
|
||||
|
||||
@ -226,9 +223,9 @@ m68*-rom68k-*) gdb_target=monitor ;;
|
||||
m68*-*bug-*) gdb_target=monitor ;;
|
||||
m68*-monitor-*) gdb_target=monitor ;;
|
||||
|
||||
m68*-*-aout) gdb_target=m68k-fp ;;
|
||||
m68*-*-coff) gdb_target=m68k-fp ;;
|
||||
m68*-*-elf) gdb_target=m68k-fp ;;
|
||||
m68*-*-aout) gdb_target=m68k-em ;;
|
||||
m68*-*-coff) gdb_target=m68k-em ;;
|
||||
m68*-*-elf) gdb_target=m68k-em ;;
|
||||
m68*-*-os68k) gdb_target=os68k ;;
|
||||
m68*-*-sunos3*) gdb_target=sun3os3 ;;
|
||||
m68*-*-sunos4*) gdb_target=sun3os4 ;;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user