[ping] Re: [RFA] sh-tdep: multi-arch the push_dummy_call method.
Michael Snyder
msnyder@redhat.com
Tue Aug 12 22:15:00 GMT 2003
Elena Zannoni wrote:
>Michael Snyder writes:
> > Michael Snyder wrote:
> >
> > > Elena, this splits off two versions of push_dummy_call: one for sh2e,
> > > sh3e, and sh4, and the other for all the others. There are two
> > > differences:
> > > how they pass floats, and how they pass large structs.
> > >
> > > This wins us 6 new passes in call-ar-st, one in call-rt-st, 13 in
> > > callfuncs,
> > > and one in varargs.
> > >
>
>For which versions do we get more passes? all versions < sh5?
>
All the ones with fp registers, ie. sh2e, sh3e, sh4.
>I don't have an abi document, in front of me, you are not just making
>the tests pass, i.e. complying with what gcc thinks the ABI is, right? ;-)
>
Ah, er, well, yes. You mean we can't trust gcc? ;-)
I'm afraid I can't find an ABI document on the cdrom.
>
>
>ok
>
>elena
>
> > >
> > >
> > >------------------------------------------------------------------------
> > >
> > >2003-07-30 Michael Snyder <msnyder@redhat.com>
> > >
> > > * sh-tdep.h (struct gdbarch_tdep): New member FLOAT_ARGLAST_REG.
> > > * sh-tdep.c (sh_gdbarch_init): For sh2e, sh3e, and sh4, set
> > > FLOAT_ARG0_REGNUM and FLOAT_ARGLAST_REGNUM, to be used for
> > > argument passing.
> > > (sh_push_dummy_call_fpu, sh_push_dummy_call_nofpu): New
> > > functions, replace sh_push_dummy_call.
> > > (sh_gdbarch_init): Set push_dummy_call to one of new methods.
> > >
> > >Index: sh-tdep.c
> > >===================================================================
> > >RCS file: /cvs/src/src/gdb/sh-tdep.c,v
> > >retrieving revision 1.135
> > >diff -p -r1.135 sh-tdep.c
> > >*** sh-tdep.c 1 Aug 2003 19:52:49 -0000 1.135
> > >--- sh-tdep.c 1 Aug 2003 22:00:40 -0000
> > >*************** sh_frame_align (struct gdbarch *ignore,
> > >*** 2034,2040 ****
> > > return sp & ~3;
> > > }
> > >
> > >! /* Function: push_arguments
> > > Setup the function arguments for calling a function in the inferior.
> > >
> > > On the Hitachi SH architecture, there are four registers (R4 to R7)
> > >--- 2034,2040 ----
> > > return sp & ~3;
> > > }
> > >
> > >! /* Function: sh_push_dummy_call (formerly push_arguments)
> > > Setup the function arguments for calling a function in the inferior.
> > >
> > > On the Hitachi SH architecture, there are four registers (R4 to R7)
> > >*************** sh_frame_align (struct gdbarch *ignore,
> > >*** 2042,2047 ****
> > >--- 2042,2051 ----
> > > four arguments (depending on size) may go into these registers.
> > > The rest go on the stack.
> > >
> > >+ MVS: Except on SH variants that have floating point registers.
> > >+ In that case, float and double arguments are passed in the same
> > >+ manner, but using FP registers instead of GP registers.
> > >+
> > > Arguments that are smaller than 4 bytes will still take up a whole
> > > register or a whole 32-bit word on the stack, and will be
> > > right-justified in the register or the stack word. This includes
> > >*************** sh_frame_align (struct gdbarch *ignore,
> > >*** 2055,2060 ****
> > >--- 2059,2069 ----
> > > that will be passed in this way; in other words, the convention of
> > > passing a pointer to a large aggregate instead of a copy is not used.
> > >
> > >+ MVS: The above appears to be true for the SH variants that do not
> > >+ have an FPU, however those that have an FPU appear to copy the
> > >+ aggregate argument onto the stack (and not place it in registers)
> > >+ if it is larger than 16 bytes (four GP registers).
> > >+
> > > An exceptional case exists for struct arguments (and possibly other
> > > aggregates such as arrays) if the size is larger than 4 bytes but
> > > not a multiple of 4 bytes. In this case the argument is never split
> > >*************** sh_frame_align (struct gdbarch *ignore,
> > >*** 2078,2088 ****
> > > to R7. */
> > >
> > > static CORE_ADDR
> > >! sh_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
> > >! struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
> > >! struct value **args, CORE_ADDR sp, int struct_return,
> > >! CORE_ADDR struct_addr)
> > >
> > > {
> > > int stack_offset, stack_alloc;
> > > int argreg;
> > >--- 2087,2210 ----
> > > to R7. */
> > >
> > > static CORE_ADDR
> > >! sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
> > >! CORE_ADDR func_addr,
> > >! struct regcache *regcache,
> > >! CORE_ADDR bp_addr, int nargs,
> > >! struct value **args,
> > >! CORE_ADDR sp, int struct_return,
> > >! CORE_ADDR struct_addr)
> > >! {
> > >! int stack_offset, stack_alloc;
> > >! int argreg, flt_argreg;
> > >! int argnum;
> > >! struct type *type;
> > >! CORE_ADDR regval;
> > >! char *val;
> > >! char valbuf[4];
> > >! int len;
> > >! int odd_sized_struct;
> > >! struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
> > >!
> > >! /* first force sp to a 4-byte alignment */
> > >! sp = sh_frame_align (gdbarch, sp);
> > >!
> > >! /* The "struct return pointer" pseudo-argument has its own dedicated
> > >! register */
> > >! if (struct_return)
> > >! regcache_cooked_write_unsigned (regcache,
> > >! STRUCT_RETURN_REGNUM,
> > >! struct_addr);
> > >!
> > >! /* Now make sure there's space on the stack */
> > >! for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
> > >! stack_alloc += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3);
> > >! sp -= stack_alloc; /* make room on stack for args */
> > >!
> > >! /* Now load as many as possible of the first arguments into
> > >! registers, and push the rest onto the stack. There are 16 bytes
> > >! in four registers available. Loop thru args from first to last. */
> > >!
> > >! argreg = tdep->ARG0_REGNUM;
> > >! flt_argreg = tdep->FLOAT_ARG0_REGNUM;
> > >! for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++)
> > >! {
> > >! type = VALUE_TYPE (args[argnum]);
> > >! len = TYPE_LENGTH (type);
> > >! memset (valbuf, 0, sizeof (valbuf));
> > >! if (len < 4)
> > >! {
> > >! /* value gets right-justified in the register or stack word */
> > >! if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
> > >! memcpy (valbuf + (4 - len),
> > >! (char *) VALUE_CONTENTS (args[argnum]), len);
> > >! else
> > >! memcpy (valbuf, (char *) VALUE_CONTENTS (args[argnum]), len);
> > >! val = valbuf;
> > >! }
> > >! else
> > >! val = (char *) VALUE_CONTENTS (args[argnum]);
> > >
> > >+ if (len > 4 && (len & 3) != 0)
> > >+ odd_sized_struct = 1; /* Such structs go entirely on stack. */
> > >+ else if (len > 16)
> > >+ odd_sized_struct = 1; /* So do aggregates bigger than 4 words. */
> > >+ else
> > >+ odd_sized_struct = 0;
> > >+ while (len > 0)
> > >+ {
> > >+ if ((TYPE_CODE (type) == TYPE_CODE_FLT
> > >+ && flt_argreg > tdep->FLOAT_ARGLAST_REGNUM)
> > >+ || argreg > tdep->ARGLAST_REGNUM
> > >+ || odd_sized_struct)
> > >+ {
> > >+ /* must go on the stack */
> > >+ write_memory (sp + stack_offset, val, 4);
> > >+ stack_offset += 4;
> > >+ }
> > >+ /* NOTE WELL!!!!! This is not an "else if" clause!!!
> > >+ That's because some *&^%$ things get passed on the stack
> > >+ AND in the registers! */
> > >+ if (TYPE_CODE (type) == TYPE_CODE_FLT &&
> > >+ flt_argreg > 0 && flt_argreg <= tdep->FLOAT_ARGLAST_REGNUM)
> > >+ {
> > >+ /* Argument goes in a single-precision fp reg. */
> > >+ regval = extract_unsigned_integer (val, register_size (gdbarch,
> > >+ argreg));
> > >+ regcache_cooked_write_unsigned (regcache, flt_argreg++, regval);
> > >+ }
> > >+ else if (argreg <= tdep->ARGLAST_REGNUM)
> > >+ {
> > >+ /* there's room in a register */
> > >+ regval = extract_unsigned_integer (val, register_size (gdbarch,
> > >+ argreg));
> > >+ regcache_cooked_write_unsigned (regcache, argreg++, regval);
> > >+ }
> > >+ /* Store the value 4 bytes at a time. This means that things
> > >+ larger than 4 bytes may go partly in registers and partly
> > >+ on the stack. */
> > >+ len -= register_size (gdbarch, argreg);
> > >+ val += register_size (gdbarch, argreg);
> > >+ }
> > >+ }
> > >+
> > >+ /* Store return address. */
> > >+ regcache_cooked_write_unsigned (regcache, tdep->PR_REGNUM, bp_addr);
> > >+
> > >+ /* Update stack pointer. */
> > >+ regcache_cooked_write_unsigned (regcache, SP_REGNUM, sp);
> > >+
> > >+ return sp;
> > >+ }
> > >+
> > >+ static CORE_ADDR
> > >+ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
> > >+ CORE_ADDR func_addr,
> > >+ struct regcache *regcache,
> > >+ CORE_ADDR bp_addr,
> > >+ int nargs, struct value **args,
> > >+ CORE_ADDR sp, int struct_return,
> > >+ CORE_ADDR struct_addr)
> > > {
> > > int stack_offset, stack_alloc;
> > > int argreg;
> > >*************** sh_push_dummy_call (struct gdbarch *gdba
> > >*** 2101,2107 ****
> > > /* The "struct return pointer" pseudo-argument has its own dedicated
> > > register */
> > > if (struct_return)
> > >! regcache_cooked_write_unsigned (regcache, STRUCT_RETURN_REGNUM, struct_addr);
> > >
> > > /* Now make sure there's space on the stack */
> > > for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
> > >--- 2223,2231 ----
> > > /* The "struct return pointer" pseudo-argument has its own dedicated
> > > register */
> > > if (struct_return)
> > >! regcache_cooked_write_unsigned (regcache,
> > >! STRUCT_RETURN_REGNUM,
> > >! struct_addr);
> > >
> > > /* Now make sure there's space on the stack */
> > > for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4374,4380 ****
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > >
> > > set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
> > >--- 4498,4504 ----
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > >
> > > set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4387,4393 ****
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > >
> > > set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
> > >--- 4511,4517 ----
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > >
> > > set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4404,4416 ****
> > > set_gdbarch_fp0_regnum (gdbarch, 25);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > > tdep->FP_LAST_REGNUM = 40;
> > >
> > >! set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
> > > break;
> > > case bfd_mach_sh_dsp:
> > > set_gdbarch_register_name (gdbarch, sh_sh_dsp_register_name);
> > >--- 4528,4543 ----
> > > set_gdbarch_fp0_regnum (gdbarch, 25);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_fpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > > tdep->FP_LAST_REGNUM = 40;
> > >+ tdep->FLOAT_ARG0_REGNUM = 29; /* FIXME use constants! */
> > >+ tdep->FLOAT_ARGLAST_REGNUM = 36; /* FIXME use constants! */
> > >
> > >! set_gdbarch_deprecated_frame_init_saved_regs (gdbarch,
> > >! sh_nofp_frame_init_saved_regs);
> > > break;
> > > case bfd_mach_sh_dsp:
> > > set_gdbarch_register_name (gdbarch, sh_sh_dsp_register_name);
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4421,4427 ****
> > > set_gdbarch_register_sim_regno (gdbarch, sh_dsp_register_sim_regno);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->DSR_REGNUM = 24;
> > > tdep->A0G_REGNUM = 25;
> > >--- 4548,4554 ----
> > > set_gdbarch_register_sim_regno (gdbarch, sh_dsp_register_sim_regno);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->DSR_REGNUM = 24;
> > > tdep->A0G_REGNUM = 25;
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4448,4454 ****
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->SSR_REGNUM = 41;
> > > tdep->SPC_REGNUM = 42;
> > >--- 4575,4581 ----
> > > set_gdbarch_push_dummy_code (gdbarch, sh_push_dummy_code);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->SSR_REGNUM = 41;
> > > tdep->SPC_REGNUM = 42;
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4467,4477 ****
> > > set_gdbarch_fp0_regnum (gdbarch, 25);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > > tdep->FP_LAST_REGNUM = 40;
> > > tdep->SSR_REGNUM = 41;
> > > tdep->SPC_REGNUM = 42;
> > >
> > >--- 4594,4606 ----
> > > set_gdbarch_fp0_regnum (gdbarch, 25);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_fpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > > tdep->FP_LAST_REGNUM = 40;
> > >+ tdep->FLOAT_ARG0_REGNUM = 29; /* FIXME use constants! */
> > >+ tdep->FLOAT_ARGLAST_REGNUM = 36; /* FIXME use constants! */
> > > tdep->SSR_REGNUM = 41;
> > > tdep->SPC_REGNUM = 42;
> > >
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4486,4492 ****
> > > set_gdbarch_register_sim_regno (gdbarch, sh_dsp_register_sim_regno);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->DSR_REGNUM = 24;
> > > tdep->A0G_REGNUM = 25;
> > >--- 4615,4621 ----
> > > set_gdbarch_register_sim_regno (gdbarch, sh_dsp_register_sim_regno);
> > > set_gdbarch_store_return_value (gdbarch, sh_default_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh_default_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->DSR_REGNUM = 24;
> > > tdep->A0G_REGNUM = 25;
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4519,4525 ****
> > > set_gdbarch_pseudo_register_write (gdbarch, sh_pseudo_register_write);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > >--- 4648,4654 ----
> > > set_gdbarch_pseudo_register_write (gdbarch, sh_pseudo_register_write);
> > > set_gdbarch_store_return_value (gdbarch, sh3e_sh4_store_return_value);
> > > set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
> > >! set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_fpu);
> > > set_gdbarch_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
> > > tdep->FPUL_REGNUM = 23;
> > > tdep->FPSCR_REGNUM = 24;
> > >*************** sh_gdbarch_init (struct gdbarch_info inf
> > >*** 4530,4535 ****
> > >--- 4659,4666 ----
> > > tdep->DR_LAST_REGNUM = 66;
> > > tdep->FV0_REGNUM = 67;
> > > tdep->FV_LAST_REGNUM = 70;
> > >+ tdep->FLOAT_ARG0_REGNUM = 29; /* FIXME use constants! */
> > >+ tdep->FLOAT_ARGLAST_REGNUM = 36; /* FIXME use constants! */
> > >
> > > set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
> > > break;
> > >Index: sh-tdep.h
> > >===================================================================
> > >RCS file: /cvs/src/src/gdb/sh-tdep.h,v
> > >retrieving revision 1.3
> > >diff -p -r1.3 sh-tdep.h
> > >*** sh-tdep.h 4 Jan 2003 23:38:45 -0000 1.3
> > >--- sh-tdep.h 1 Aug 2003 22:00:40 -0000
> > >*************** struct gdbarch_tdep
> > >*** 85,91 ****
> > > int FV_LAST_C_REGNUM; /* sh5-compact*/
> > > int ARG0_REGNUM;
> > > int ARGLAST_REGNUM;
> > >! int FLOAT_ARGLAST_REGNUM;
> > > int RETURN_REGNUM;
> > > enum sh_abi sh_abi;
> > > };
> > >--- 85,92 ----
> > > int FV_LAST_C_REGNUM; /* sh5-compact*/
> > > int ARG0_REGNUM;
> > > int ARGLAST_REGNUM;
> > >! int FLOAT_ARG0_REGNUM; /* sh4 */
> > >! int FLOAT_ARGLAST_REGNUM; /* sh4, sh5 */
> > > int RETURN_REGNUM;
> > > enum sh_abi sh_abi;
> > > };
> > >
> > >
> >
>
>
>
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