* remote-mips.c: New file; implements MIPS remote debugging
protocol. * config/idt.mt: New file; uses remote-mips.c * configure.in (mips-idt-ecoff): New target; uses idt.mt. * mips-tdep.c (mips_fpu): New variable; controls use of MIPS floating point coprocessor. (mips_push_dummy_frame): If not mips_fpu, don't save floating point registers. (mips_pop_frame): If not mips_fpu, don't restore floating point registers. (_initialize_mips_tdep): New function; let the user reset mips_fpu variable. * tm-mips.h (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE): If not mips_fpu, don't use fp0 as floating point return register. (FIX_CALL_DUMMY): If not mips_fpu, don't save floating point registers. Also added remote-mips.c to .Sanitize file.
This commit is contained in:
Ian Lance Taylor
parent
20f10b59ff
commit
c2a0f1cb8e
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@ -206,6 +206,7 @@ remote-adapt.c
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remote-eb.c
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remote-es1800.c
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remote-hms.c
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remote-mips.c
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remote-mm.c
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remote-nindy.c
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remote-sim.c
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@ -1,3 +1,23 @@
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Mon Feb 22 15:21:54 1993 Ian Lance Taylor (ian@cygnus.com)
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* remote-mips.c: New file; implements MIPS remote debugging
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protocol.
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* config/idt.mt: New file; uses remote-mips.c
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* configure.in (mips-idt-ecoff): New target; uses idt.mt.
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* mips-tdep.c (mips_fpu): New variable; controls use of MIPS
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floating point coprocessor.
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(mips_push_dummy_frame): If not mips_fpu, don't save floating
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point registers.
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(mips_pop_frame): If not mips_fpu, don't restore floating point
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registers.
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(_initialize_mips_tdep): New function; let the user reset mips_fpu
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variable.
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* tm-mips.h (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE): If not
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mips_fpu, don't use fp0 as floating point return register.
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(FIX_CALL_DUMMY): If not mips_fpu, don't save floating point
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registers.
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Mon Feb 22 07:54:03 1993 Mike Werner (mtw@poseidon.cygnus.com)
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* gdb/testsuite: made modifications to testcases, etc., to allow
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@ -66,6 +66,7 @@ i386v.mt
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i386v32.mh
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i386v4.mh
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i386v4.mt
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idt.mt
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irix3.mh
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irix3.mt
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irix4.mh
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@ -0,0 +1,3 @@
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# Target: Big-endian IDT board.
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TDEPFILES= mips-pinsn.o mips-tdep.o exec.o remote-mips.o
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TM_FILE= tm-bigmips.h
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@ -171,6 +171,7 @@ m88k-*-*) gdb_target=m88k ;;
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mips-big-*) gdb_target=bigmips ;;
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mips-dec-*) gdb_target=decstation ;;
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mips-idt-ecoff) gdb_target=idt ;;
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mips-little-*) gdb_target=littlemips ;;
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mips-sgi-*) gdb_target=irix3 ;;
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mips-sony-*) gdb_target=bigmips ;;
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@ -1,5 +1,5 @@
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/* Target-dependent code for the MIPS architecture, for GDB, the GNU Debugger.
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Copyright 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Copyright 1988, 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
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Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
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and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
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@ -55,6 +55,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <sys/stat.h>
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/* Some MIPS boards don't support floating point, so we permit the
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user to turn it off. */
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int mips_fpu = 1;
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#define PROC_LOW_ADDR(proc) ((proc)->pdr.adr) /* least address */
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#define PROC_HIGH_ADDR(proc) ((proc)->pdr.iline) /* upper address bound */
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#define PROC_FRAME_OFFSET(proc) ((proc)->pdr.frameoffset)
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@ -316,16 +320,13 @@ init_extra_frame_info(fci)
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/* r0 bit means kernel trap */
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int kernel_trap = PROC_REG_MASK(proc_desc) & 1;
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if (fci->frame == 0)
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{
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/* Fixup frame-pointer - only needed for top frame */
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/* This may not be quite right, if proc has a real frame register */
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if (fci->pc == PROC_LOW_ADDR(proc_desc))
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fci->frame = read_register (SP_REGNUM);
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else
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fci->frame = READ_FRAME_REG(fci, PROC_FRAME_REG(proc_desc))
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+ PROC_FRAME_OFFSET(proc_desc);
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}
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/* Fixup frame-pointer - only needed for top frame */
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/* This may not be quite right, if proc has a real frame register */
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if (fci->pc == PROC_LOW_ADDR(proc_desc))
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fci->frame = read_register (SP_REGNUM);
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else
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fci->frame = READ_FRAME_REG(fci, PROC_FRAME_REG(proc_desc))
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+ PROC_FRAME_OFFSET(proc_desc);
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if (proc_desc == &temp_proc_desc)
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*fci->saved_regs = temp_saved_regs;
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@ -381,11 +382,14 @@ init_extra_frame_info(fci)
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arguments without difficulty. */
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FRAME
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setup_arbitrary_frame (stack, pc)
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FRAME_ADDR stack;
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CORE_ADDR pc;
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setup_arbitrary_frame (argc, argv)
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int argc;
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FRAME_ADDR *argv;
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{
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return create_new_frame (stack, pc);
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if (argc != 2)
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error ("MIPS frame specifications require two arguments: sp and pc");
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return create_new_frame (argv[0], argv[1]);
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}
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@ -470,12 +474,12 @@ mips_push_dummy_frame()
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* Saved D18 (i.e. F19, F18)
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* ...
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* Saved D0 (i.e. F1, F0)
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* CALL_DUMMY (subroutine stub; see m-mips.h)
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* CALL_DUMMY (subroutine stub; see tm-mips.h)
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* Parameter build area (not yet implemented)
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* (low memory)
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*/
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PROC_REG_MASK(proc_desc) = GEN_REG_SAVE_MASK;
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PROC_FREG_MASK(proc_desc) = FLOAT_REG_SAVE_MASK;
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PROC_FREG_MASK(proc_desc) = mips_fpu ? FLOAT_REG_SAVE_MASK : 0;
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PROC_REG_OFFSET(proc_desc) = /* offset of (Saved R31) from FP */
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-sizeof(long) - 4 * SPECIAL_REG_SAVE_COUNT;
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PROC_FREG_OFFSET(proc_desc) = /* offset of (Saved D18) from FP */
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@ -507,9 +511,11 @@ mips_push_dummy_frame()
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write_memory (sp - 8, (char *)&buffer, sizeof(REGISTER_TYPE));
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buffer = read_register (LO_REGNUM);
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write_memory (sp - 12, (char *)&buffer, sizeof(REGISTER_TYPE));
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buffer = read_register (FCRCS_REGNUM);
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buffer = read_register (mips_fpu ? FCRCS_REGNUM : ZERO_REGNUM);
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write_memory (sp - 16, (char *)&buffer, sizeof(REGISTER_TYPE));
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sp -= 4 * (GEN_REG_SAVE_COUNT+FLOAT_REG_SAVE_COUNT+SPECIAL_REG_SAVE_COUNT);
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sp -= 4 * (GEN_REG_SAVE_COUNT
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+ (mips_fpu ? FLOAT_REG_SAVE_COUNT : 0)
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+ SPECIAL_REG_SAVE_COUNT);
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write_register (SP_REGNUM, sp);
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PROC_LOW_ADDR(proc_desc) = sp - CALL_DUMMY_SIZE + CALL_DUMMY_START_OFFSET;
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PROC_HIGH_ADDR(proc_desc) = sp;
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@ -568,7 +574,8 @@ mips_pop_frame()
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write_register (HI_REGNUM, read_memory_integer(new_sp - 8, 4));
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write_register (LO_REGNUM, read_memory_integer(new_sp - 12, 4));
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write_register (FCRCS_REGNUM, read_memory_integer(new_sp - 16, 4));
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if (mips_fpu)
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write_register (FCRCS_REGNUM, read_memory_integer(new_sp - 16, 4));
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}
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}
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@ -686,7 +693,11 @@ isa_NAN(p, len)
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}
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else if (len == 8)
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{
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#if TARGET_BYTE_ORDER == BIG_ENDIAN
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exponent = *p;
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#else
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exponent = *(p+1);
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#endif
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exponent = exponent << 1 >> (32 - DOUBLE_EXP_BITS - 1);
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return ((exponent == -1) || (! exponent && *p * *(p+1)));
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}
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@ -739,3 +750,17 @@ mips_skip_prologue(pc)
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return pc;
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}
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/* Let the user turn off floating point. */
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void
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_initialize_mips_tdep ()
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{
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add_show_from_set
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(add_set_cmd ("mips_fpu", class_support, var_boolean,
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(char *) &mips_fpu,
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"Set use of floating point coprocessor.\n\
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Turn off to avoid using floating point instructions when calling functions\n\
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or dealing with return values.", &setlist),
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&showlist);
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}
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@ -48,7 +48,7 @@ static int mips_cksum PARAMS ((const unsigned char *hdr,
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int len));
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static void
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mips_send_packet PARAMS ((const char *s));
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mips_send_packet PARAMS ((const char *s, int get_ack));
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static int
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mips_receive_packet PARAMS ((char *buff));
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@ -57,6 +57,9 @@ static int
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mips_request PARAMS ((char cmd, unsigned int addr, unsigned int data,
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int *perr));
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static void
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mips_initialize PARAMS ((void));
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static void
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mips_open PARAMS ((char *name, int from_tty));
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@ -246,6 +249,9 @@ extern struct target_ops mips_ops;
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/* Set to 1 if the target is open. */
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static int mips_is_open;
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/* Set to 1 while the connection is being initialized. */
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static int mips_initializing;
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/* The next sequence number to send. */
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static int mips_send_seq;
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@ -263,7 +269,7 @@ static int mips_send_retries = 10;
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static int mips_syn_garbage = 1050;
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/* The time to wait for a packet, in seconds. */
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static int mips_receive_wait = 30;
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static int mips_receive_wait = 5;
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/* Set if we have sent a packet to the board but have not yet received
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a reply. */
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@ -273,13 +279,25 @@ static int mips_need_reply = 0;
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static int mips_debug = 0;
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/* Read a character from the remote, aborting on error. Returns -2 on
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timeout (since that's what serial_readchar returns). */
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timeout (since that's what serial_readchar returns). FIXME: If we
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see the string "<IDT>" from the board, then we are debugging on the
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main console port, and we have somehow dropped out of remote
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debugging mode. In this case, we automatically go back in to
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remote debugging mode. This is a hack, put in because I can't find
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any way for a program running on the remote board to terminate
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without also ending remote debugging mode. I assume users won't
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have any trouble with this; for one thing, the IDT documentation
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generally assumes that the remote debugging port is not the console
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port. This is, however, very convenient for DejaGnu when you only
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have one connected serial port. */
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static int
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mips_readchar (timeout)
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int timeout;
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{
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int ch;
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static int state = 0;
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static char nextstate[5] = { '<', 'I', 'D', 'T', '>' };
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ch = serial_readchar (timeout);
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if (ch == EOF)
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@ -293,6 +311,34 @@ mips_readchar (timeout)
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else
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printf_filtered ("Timed out in read\n");
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}
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/* If we have seen <IDT> and we either time out, or we see a @
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(which was echoed from a packet we sent), reset the board as
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described above. The first character in a packet after the SYN
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(which is not echoed) is always an @ unless the packet is more
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than 64 characters long, which ours never are. */
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if ((ch == -2 || ch == '@')
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&& state == 5
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&& ! mips_initializing)
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{
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if (mips_debug > 0)
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printf_filtered ("Reinitializing MIPS debugging mode\n");
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serial_write ("\rdb tty0\r", sizeof "\rdb tty0\r" - 1);
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sleep (1);
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mips_need_reply = 0;
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mips_initialize ();
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state = 0;
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error ("Remote board reset");
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}
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if (ch == nextstate[state])
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++state;
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else
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state = 0;
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return ch;
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}
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@ -327,7 +373,11 @@ mips_receive_header (hdr, pgarbage, ch, timeout)
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what the program is outputting, if the debugging is
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being done on the console port. FIXME: Perhaps this
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should be filtered? */
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putchar (ch);
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if (! mips_initializing || mips_debug > 0)
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{
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putchar (ch);
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fflush (stdout);
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}
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++*pgarbage;
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if (*pgarbage > mips_syn_garbage)
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@ -416,8 +466,9 @@ mips_cksum (hdr, data, len)
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/* Send a packet containing the given ASCII string. */
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static void
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mips_send_packet (s)
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mips_send_packet (s, get_ack)
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const char *s;
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int get_ack;
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{
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unsigned int len;
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unsigned char *packet;
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@ -446,6 +497,9 @@ mips_send_packet (s)
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the sequence number we expect in the acknowledgement. */
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mips_send_seq = (mips_send_seq + 1) % SEQ_MODULOS;
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if (! get_ack)
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return;
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/* We can only have one outstanding data packet, so we just wait for
|
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the acknowledgement here. Keep retransmitting the packet until
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we get one, or until we've tried too many times. */
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|
|
@ -728,7 +782,7 @@ mips_request (cmd, addr, data, perr)
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if (mips_need_reply)
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fatal ("mips_request: Trying to send command before reply");
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sprintf (buff, "0x0 %c 0x%x 0x%x", cmd, addr, data);
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mips_send_packet (buff);
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mips_send_packet (buff, 1);
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mips_need_reply = 1;
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}
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|
|
@ -766,6 +820,64 @@ mips_request (cmd, addr, data, perr)
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return rresponse;
|
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}
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|
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/* Initialize a new connection to the MIPS board, and make sure we are
|
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really connected. */
|
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|
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static void
|
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mips_initialize ()
|
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{
|
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char cr;
|
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int hold_wait;
|
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int tries;
|
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char buff[DATA_MAXLEN + 1];
|
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int err;
|
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|
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if (mips_initializing)
|
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return;
|
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|
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mips_initializing = 1;
|
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|
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mips_send_seq = 0;
|
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mips_receive_seq = 0;
|
||||
|
||||
/* The board seems to want to send us a packet. I don't know what
|
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it means. The packet seems to be triggered by a carriage return
|
||||
character, although perhaps any character would do. */
|
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cr = '\r';
|
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serial_write (&cr, 1);
|
||||
|
||||
hold_wait = mips_receive_wait;
|
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mips_receive_wait = 3;
|
||||
|
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tries = 0;
|
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while (catch_errors (mips_receive_packet, buff, (char *) NULL) == 0)
|
||||
{
|
||||
char cc;
|
||||
|
||||
if (tries > 0)
|
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error ("Could not connect to target");
|
||||
++tries;
|
||||
|
||||
/* We did not receive the packet we expected; try resetting the
|
||||
board and trying again. */
|
||||
printf_filtered ("Failed to initialize; trying to reset board\n");
|
||||
cc = '\003';
|
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serial_write (&cc, 1);
|
||||
sleep (2);
|
||||
serial_write ("\rdb tty0\r", sizeof "\rdb tty0\r" - 1);
|
||||
sleep (1);
|
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cr = '\r';
|
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serial_write (&cr, 1);
|
||||
}
|
||||
|
||||
mips_receive_wait = hold_wait;
|
||||
mips_initializing = 0;
|
||||
|
||||
/* If this doesn't call error, we have connected; we don't care if
|
||||
the request itself succeeds or fails. */
|
||||
mips_request ('r', (unsigned int) 0, (unsigned int) 0, &err);
|
||||
}
|
||||
|
||||
/* Open a connection to the remote board. */
|
||||
|
||||
static void
|
||||
|
|
@ -773,10 +885,6 @@ mips_open (name, from_tty)
|
|||
char *name;
|
||||
int from_tty;
|
||||
{
|
||||
int err;
|
||||
char cr;
|
||||
char buff[DATA_MAXLEN + 1];
|
||||
|
||||
if (name == 0)
|
||||
error (
|
||||
"To open a MIPS remote debugging connection, you need to specify what serial\n\
|
||||
|
|
@ -785,28 +893,20 @@ device is attached to the target board (e.g., /dev/ttya).");
|
|||
target_preopen (from_tty);
|
||||
|
||||
if (mips_is_open)
|
||||
mips_close (0);
|
||||
unpush_target (&mips_ops);
|
||||
|
||||
if (serial_open (name) == 0)
|
||||
perror_with_name (name);
|
||||
|
||||
mips_is_open = 1;
|
||||
|
||||
/* The board seems to want to send us a packet. I don't know what
|
||||
it means. */
|
||||
cr = '\r';
|
||||
serial_write (&cr, 1);
|
||||
mips_receive_packet (buff);
|
||||
|
||||
/* If this doesn't call error, we have connected; we don't care if
|
||||
the request itself succeeds or fails. */
|
||||
mips_request ('r', (unsigned int) 0, (unsigned int) 0, &err);
|
||||
mips_initialize ();
|
||||
|
||||
if (from_tty)
|
||||
printf ("Remote MIPS debugging using %s\n", name);
|
||||
push_target (&mips_ops); /* Switch to using remote target now */
|
||||
|
||||
start_remote (); /* Initialize gdb process mechanisms */
|
||||
/* FIXME: Should we call start_remote here? */
|
||||
}
|
||||
|
||||
/* Close a connection to the remote board. */
|
||||
|
|
@ -817,11 +917,14 @@ mips_close (quitting)
|
|||
{
|
||||
if (mips_is_open)
|
||||
{
|
||||
/* Get the board out of remote debugging mode. */
|
||||
mips_request ('x', (unsigned int) 0, (unsigned int) 0,
|
||||
(int *) NULL);
|
||||
serial_close ();
|
||||
int err;
|
||||
|
||||
mips_is_open = 0;
|
||||
|
||||
/* Get the board out of remote debugging mode. */
|
||||
mips_request ('x', (unsigned int) 0, (unsigned int) 0, &err);
|
||||
|
||||
serial_close ();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -852,7 +955,7 @@ mips_resume (step, siggnal)
|
|||
siggnal);
|
||||
|
||||
mips_request (step ? 's' : 'c',
|
||||
(unsigned int) read_register (PC_REGNUM),
|
||||
(unsigned int) 1,
|
||||
(unsigned int) 0,
|
||||
(int *) NULL);
|
||||
}
|
||||
|
|
@ -1099,6 +1202,28 @@ mips_files_info (ignore)
|
|||
printf ("Debugging a MIPS board over a serial line.\n");
|
||||
}
|
||||
|
||||
/* Kill the process running on the board. This will actually only
|
||||
work if we are doing remote debugging over the console input. I
|
||||
think that if IDT/sim had the remote debug interrupt enabled on the
|
||||
right port, we could interrupt the process with a break signal. */
|
||||
|
||||
static void
|
||||
mips_kill ()
|
||||
{
|
||||
#if 0
|
||||
if (mips_is_open)
|
||||
{
|
||||
char cc;
|
||||
|
||||
/* Send a ^C. */
|
||||
cc = '\003';
|
||||
serial_write (&cc, 1);
|
||||
sleep (1);
|
||||
target_mourn_inferior ();
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Load an executable onto the board. */
|
||||
|
||||
static void
|
||||
|
|
@ -1109,6 +1234,7 @@ mips_load (args, from_tty)
|
|||
bfd *abfd;
|
||||
asection *s;
|
||||
int err;
|
||||
CORE_ADDR text;
|
||||
|
||||
abfd = bfd_openr (args, 0);
|
||||
if (abfd == (bfd *) NULL)
|
||||
|
|
@ -1117,6 +1243,7 @@ mips_load (args, from_tty)
|
|||
if (bfd_check_format (abfd, bfd_object) == 0)
|
||||
error ("%s: Not an object file", args);
|
||||
|
||||
text = UINT_MAX;
|
||||
for (s = abfd->sections; s != (asection *) NULL; s = s->next)
|
||||
{
|
||||
if ((s->flags & SEC_LOAD) != 0)
|
||||
|
|
@ -1140,6 +1267,10 @@ mips_load (args, from_tty)
|
|||
mips_xfer_memory (vma, buffer, size, 1, &mips_ops);
|
||||
|
||||
do_cleanups (old_chain);
|
||||
|
||||
if ((bfd_get_section_flags (abfd, s) & SEC_CODE) != 0
|
||||
&& vma < text)
|
||||
text = vma;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1152,7 +1283,13 @@ mips_load (args, from_tty)
|
|||
|
||||
bfd_close (abfd);
|
||||
|
||||
/* FIXME: Should we call symbol_file_add here? */
|
||||
/* FIXME: Should we call symbol_file_add here? The local variable
|
||||
text exists just for this call. Making the call seems to confuse
|
||||
gdb if more than one file is loaded in. Perhaps passing MAINLINE
|
||||
as 1 would fix this, but it's not clear that that is correct
|
||||
either since it is possible to load several files onto the board.
|
||||
|
||||
symbol_file_add (args, from_tty, text, 0, 0, 0); */
|
||||
}
|
||||
|
||||
/* Start running on the target board. */
|
||||
|
|
@ -1165,7 +1302,6 @@ mips_create_inferior (execfile, args, env)
|
|||
{
|
||||
CORE_ADDR entry_pt;
|
||||
|
||||
/* FIXME: Actually, we probably could pass arguments. */
|
||||
if (args && *args)
|
||||
error ("Can't pass arguments to remote MIPS board.");
|
||||
|
||||
|
|
@ -1176,6 +1312,8 @@ mips_create_inferior (execfile, args, env)
|
|||
|
||||
init_wait_for_inferior ();
|
||||
|
||||
/* FIXME: Should we set inferior_pid here? */
|
||||
|
||||
proceed (entry_pt, -1, 0);
|
||||
}
|
||||
|
||||
|
|
@ -1213,7 +1351,7 @@ Specify the serial device it is connected to (e.g., /dev/ttya).", /* to_doc */
|
|||
NULL, /* to_terminal_ours_for_output */
|
||||
NULL, /* to_terminal_ours */
|
||||
NULL, /* to_terminal_info */
|
||||
NULL, /* to_kill */
|
||||
mips_kill, /* to_kill */
|
||||
mips_load, /* to_load */
|
||||
NULL, /* to_lookup_symbol */
|
||||
mips_create_inferior, /* to_create_inferior */
|
||||
|
|
|
|||
|
|
@ -34,6 +34,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
/* Floating point is IEEE compliant */
|
||||
#define IEEE_FLOAT
|
||||
|
||||
/* Some MIPS boards are provided both with and without a floating
|
||||
point coprocessor; we provide a user settable variable to tell gdb
|
||||
whether there is one or not. */
|
||||
extern int mips_fpu;
|
||||
|
||||
/* Define this if the C compiler puts an underscore at the front
|
||||
of external names before giving them to the linker. */
|
||||
|
||||
|
|
@ -205,13 +210,13 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
into VALBUF. XXX floats */
|
||||
|
||||
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
||||
bcopy (REGBUF+REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
bcopy (REGBUF + REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
|
||||
/* Write into appropriate registers a function return value
|
||||
of type TYPE, given in virtual format. */
|
||||
|
||||
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
||||
write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
write_register_bytes (REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
|
||||
/* Extract from an array REGBUF containing the (raw) register state
|
||||
the address in which a function should return its structure value,
|
||||
|
|
@ -294,11 +299,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
0, /* nop # ... to stop raw backtrace*/\
|
||||
0x27bd0000, /* addu sp,?0 # Pseudo prologue */\
|
||||
/* Start here: */\
|
||||
MK_OP(061,SP_REGNUM,12,0), /* lwc1 $f12,0(sp) # Reload first 4 args*/\
|
||||
MK_OP(061,SP_REGNUM,12,0), /* lwc1 $f12,0(sp) # Reload FP regs*/\
|
||||
MK_OP(061,SP_REGNUM,13,4), /* lwc1 $f13,4(sp) */\
|
||||
MK_OP(061,SP_REGNUM,14,8), /* lwc1 $f14,8(sp) */\
|
||||
MK_OP(061,SP_REGNUM,15,12), /* lwc1 $f15,12(sp) */\
|
||||
MK_OP(043,SP_REGNUM,4,0), /* lw $r4,0(sp) # Re-load FP regs*/\
|
||||
MK_OP(043,SP_REGNUM,4,0), /* lw $r4,0(sp) # Reload first 4 args*/\
|
||||
MK_OP(043,SP_REGNUM,5,4), /* lw $r5,4(sp) */\
|
||||
MK_OP(043,SP_REGNUM,6,8), /* lw $r6,8(sp) */\
|
||||
MK_OP(043,SP_REGNUM,7,12), /* lw $r7,12(sp) */\
|
||||
|
|
@ -315,8 +320,19 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
into a call sequence of the above form stored at DUMMYNAME. */
|
||||
|
||||
#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p)\
|
||||
(((int*)dummyname)[11] |= (((unsigned long)(fun)) >> 16), \
|
||||
((int*)dummyname)[12] |= (unsigned short)(fun))
|
||||
do \
|
||||
{ \
|
||||
((int*)(dummyname))[11] |= ((unsigned long)(fun)) >> 16; \
|
||||
((int*)(dummyname))[12] |= (unsigned short)(fun); \
|
||||
if (! mips_fpu) \
|
||||
{ \
|
||||
((int *) (dummyname))[3] = 0; \
|
||||
((int *) (dummyname))[4] = 0; \
|
||||
((int *) (dummyname))[5] = 0; \
|
||||
((int *) (dummyname))[6] = 0; \
|
||||
} \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* There's a mess in stack frame creation. See comments in blockframe.c
|
||||
near reference to INIT_FRAME_PC_FIRST. */
|
||||
|
|
|
|||
Loading…
Reference in New Issue