iq2000: New port.
* config/iq2000: New port. * config.gcc (iq2000-*-elf): Added. * doc/install.texi (Specific): Add iq2000 description. From-SVN: r70245
This commit is contained in:
Stan Cox
Stan Cox
parent
3e083bea6c
commit
6b3d1e471a
@ -1,3 +1,9 @@
|
||||
2003-08-08 Stan Cox <scox@redhat.com>
|
||||
|
||||
* config/iq2000: New port.
|
||||
* config.gcc (iq2000-*-elf): Added.
|
||||
* doc/install.texi (Specific): Add iq2000 description.
|
||||
|
||||
2003-08-08 Andreas Schwab <schwab@suse.de>
|
||||
|
||||
* configure.in (gcc_cv_as_ia64_ltoffx_ldxmov_relocs): Fix quoting
|
||||
|
||||
@ -1296,6 +1296,13 @@ ia64*-*-hpux*)
|
||||
ip2k-*-elf)
|
||||
tm_file="elfos.h ${tm_file}"
|
||||
;;
|
||||
iq2000*-*-elf*)
|
||||
tm_file="iq2000/iq2000.h"
|
||||
tmake_file=iq2000/t-iq2000
|
||||
out_file=iq2000/iq2000.c
|
||||
xm_file=iq2000/xm-iq2000.h
|
||||
md_file=iq2000/iq2000.md
|
||||
;;
|
||||
m32r-*-elf*)
|
||||
tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
|
||||
extra_parts="crtinit.o crtfini.o"
|
||||
|
||||
232
gcc/config/iq2000/abi
Normal file
232
gcc/config/iq2000/abi
Normal file
@ -0,0 +1,232 @@
|
||||
IQ2000 ABI
|
||||
=========
|
||||
|
||||
Sizes and alignments
|
||||
--------------------
|
||||
|
||||
Type Size (bytes) Alignment (bytes)
|
||||
|
||||
char 1 1
|
||||
short 2 2
|
||||
int 4 4
|
||||
unsigned 4 4
|
||||
long 4 4
|
||||
long long 8 8
|
||||
float 4 4
|
||||
double 8 8
|
||||
pointers 4 4
|
||||
|
||||
* alignment within aggregates (structs and unions) is as above, with
|
||||
padding added if needed
|
||||
* aggregates have alignment equal to that of their most aligned
|
||||
member
|
||||
* aggregates have sizes which are a multiple of their alignment
|
||||
|
||||
|
||||
Floating point
|
||||
--------------
|
||||
|
||||
All emulated using IEEE floating point conventions.
|
||||
|
||||
Registers
|
||||
----------------
|
||||
|
||||
%0 always zero
|
||||
%1 call clobbered
|
||||
%2 return value
|
||||
%3 return value
|
||||
%4 argument register 1
|
||||
%5 argument register 2
|
||||
%6 argument register 3
|
||||
%7 argument register 4
|
||||
%8 argument register 5
|
||||
%9 argument register 6
|
||||
%10 argument register 7
|
||||
%11 argument register 8
|
||||
%12 call clobbered
|
||||
%13 call clobbered
|
||||
%14 call clobbered
|
||||
%15 call clobbered
|
||||
%16 call saved
|
||||
%17 call saved
|
||||
%18 call saved
|
||||
%19 call saved
|
||||
%20 call saved
|
||||
%21 call saved
|
||||
%22 call saved
|
||||
%23 call saved
|
||||
%24 call clobbered
|
||||
%25 call clobbered
|
||||
%26 reserved
|
||||
%27 frame ptr
|
||||
%28 global ptr
|
||||
%29 stack ptr
|
||||
%30 reserved
|
||||
%31 return address
|
||||
|
||||
Stack alignment 8 bytes
|
||||
|
||||
Structures passed <= 32 bits as values, else as pointers
|
||||
|
||||
The IQ2000 Stack
|
||||
---------------
|
||||
|
||||
Space is allocated as needed in the stack frame for the following at compile
|
||||
time:
|
||||
|
||||
* Outgoing parameters beyond the eighth
|
||||
|
||||
* All automatic arrays, automatic data aggregates, automatic
|
||||
scalars which must be addressable, and automatic scalars for
|
||||
which there is no room in registers
|
||||
|
||||
* Compiler-generated temporary values (typically when there are
|
||||
too many for the compiler to keep them all in registers)
|
||||
|
||||
Space can be allocated dynamically (at runtime) in the stack frame for the
|
||||
following:
|
||||
|
||||
* Memory allocated using the alloca() function of the C library
|
||||
|
||||
Addressable automatic variables on the stack are addressed with positive
|
||||
offsets relative to %27; dynamically allocated space is addressed with positive
|
||||
offsets from the pointer returned by alloca().
|
||||
|
||||
Stack Frame
|
||||
-----------
|
||||
|
||||
+-----------------------+
|
||||
| Caller memory args |
|
||||
+-----------------------+ <-sp
|
||||
| Return address |
|
||||
+-----------------------+
|
||||
| Previous FP |
|
||||
+-----------------------+
|
||||
| Saved Registers |
|
||||
+-----------------------+
|
||||
| ... |
|
||||
+-----------------------+
|
||||
| Local Variables |
|
||||
+-----------------------+ <-fp
|
||||
| Alloca |
|
||||
+-----------------------+
|
||||
| ... |
|
||||
+-----------------------+
|
||||
| Parameter Word 2 |
|
||||
+-----------------------+
|
||||
| Parameter Word 1 |
|
||||
+-----------------------+ <-sp
|
||||
|
||||
|
||||
Parameter Assignment to Registers
|
||||
---------------------------------
|
||||
|
||||
Consider the parameters in a function call as ordered from left (first
|
||||
parameter) to right. GR contains the number of the next available
|
||||
general-purpose register. STARG is the address of the next available stack
|
||||
parameter word.
|
||||
|
||||
INITIALIZE:
|
||||
Set GR=r4 and STARG to point to parameter word 1.
|
||||
|
||||
SCAN:
|
||||
If there are no more parameters, terminate.
|
||||
Otherwise, select one of the following depending on the type
|
||||
of the next parameter:
|
||||
|
||||
SIMPLE ARG:
|
||||
|
||||
A SIMPLE ARG is one of the following:
|
||||
|
||||
* One of the simple integer types which will fit into a
|
||||
general-purpose register,
|
||||
* A pointer to an object of any type,
|
||||
* A struct or union small enough to fit in a register (<= 32 bits)
|
||||
* A larger struct or union, which shall be treated as a
|
||||
pointer to the object or to a copy of the object.
|
||||
(See below for when copies are made.)
|
||||
|
||||
If GR > r11, go to STACK. Otherwise, load the parameter value into
|
||||
general-purpose register GR and advance GR to the next general-purpose
|
||||
register. Values shorter than the register size are sign-extended or
|
||||
zero-extended depending on whether they are signed or unsigned. Then
|
||||
go to SCAN.
|
||||
|
||||
DOUBLE or LONG LONG
|
||||
|
||||
If GR > r10, go to STACK. Otherwise, if GR is odd, advance GR to the
|
||||
next register. Load the 64-bit long long or double value into register
|
||||
pair GR and GR+1. Advance GR to GR+2 and go to SCAN.
|
||||
|
||||
STACK:
|
||||
|
||||
Parameters not otherwise handled above are passed in the parameter
|
||||
words of the caller's stack frame. SIMPLE ARGs, as defined above, are
|
||||
considered to have size and alignment equal to the size of a
|
||||
general-purpose register, with simple argument types shorter than this
|
||||
sign- or zero-extended to this width. Round STARG up to a multiple of
|
||||
the alignment requirement of the parameter and copy the argument
|
||||
byte-for-byte into STARG, STARG+1, ... STARG+size-1. Set STARG to
|
||||
STARG+size and go to SCAN.
|
||||
|
||||
|
||||
Structure passing
|
||||
-----------------
|
||||
|
||||
As noted above, code which passes structures and unions by value is implemented
|
||||
specially. (In this section, "struct" will refer to structs and unions
|
||||
inclusively.) Structs small enough to fit in a register are passed by value in
|
||||
a single register or in a stack frame slot the size of a register. Structs
|
||||
containing a single double or long long component are passed by value in two
|
||||
registers or in a stack frame slot the size of two registers. Other structs
|
||||
are handled by passing the address of the structure. In this case, a copy of
|
||||
the structure will be made if necessary in order to preserve the pass-by-value
|
||||
semantics.
|
||||
|
||||
Copies of large structs are made under the following rules:
|
||||
|
||||
ANSI mode K&R Mode
|
||||
--------- --------
|
||||
Normal param Callee copies if needed Caller copies
|
||||
Varargs (...) param Caller copies Caller copies
|
||||
|
||||
In the case of normal (non-varargs) large-struct parameters in ANSI mode, the
|
||||
callee is responsible for producing the same effect as if a copy of the
|
||||
structure were passed, preserving the pass-by-value semantics. This may be
|
||||
accomplished by having the callee make a copy, but in some cases the callee may
|
||||
be able to determine that a copy is not necessary in order to produce the same
|
||||
results. In such cases, the callee may choose to avoid making a copy of the
|
||||
parameter.
|
||||
|
||||
|
||||
Varargs handling
|
||||
----------------
|
||||
|
||||
No special changes are needed for handling varargs parameters other than the
|
||||
caller knowing that a copy is needed on struct parameters larger than a
|
||||
register (see above).
|
||||
|
||||
The varargs macros set up a register save area for the general-purpose
|
||||
registers to be saved. Because the save area lies between the caller and
|
||||
callee stack frames, the saved register parameters are contiguous with
|
||||
parameters passed on the stack. A pointer advances from the register save area
|
||||
into the caller's stack frame.
|
||||
|
||||
|
||||
Function return values
|
||||
----------------------
|
||||
|
||||
Type Register
|
||||
---- --------
|
||||
int r2
|
||||
short r2
|
||||
long r2
|
||||
long long r2-r3
|
||||
float r2
|
||||
double r2-r3
|
||||
struct/union see below
|
||||
|
||||
Structs/unions which will fit into two general-purpose registers are returned
|
||||
in r2, or in r2-r3 if necessary. Larger structs/unions are handled by the
|
||||
caller passing as a "hidden" first argument a pointer to space allocated to
|
||||
receive the return value.
|
||||
64
gcc/config/iq2000/iq2000-protos.h
Normal file
64
gcc/config/iq2000/iq2000-protos.h
Normal file
@ -0,0 +1,64 @@
|
||||
/* Definitions of target machine for GNU compiler for iq2000.
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifndef GCC_IQ2000_PROTOS_H
|
||||
#define GCC_IQ2000_PROTOS_H
|
||||
|
||||
extern int iq2000_check_split PARAMS ((rtx, enum machine_mode));
|
||||
extern int iq2000_reg_mode_ok_for_base_p PARAMS ((rtx, enum machine_mode, int));
|
||||
extern int iq2000_legitimate_address_p PARAMS ((enum machine_mode, rtx, int));
|
||||
extern const char* iq2000_fill_delay_slot PARAMS ((const char*, enum delay_type, rtx*, rtx));
|
||||
extern const char *iq2000_move_1word PARAMS ((rtx *, rtx, int));
|
||||
extern int iq2000_address_cost PARAMS ((rtx));
|
||||
extern void override_options PARAMS ((void));
|
||||
extern HOST_WIDE_INT iq2000_debugger_offset PARAMS ((rtx, HOST_WIDE_INT));
|
||||
extern void final_prescan_insn PARAMS ((rtx, rtx*, int));
|
||||
extern HOST_WIDE_INT compute_frame_size PARAMS ((HOST_WIDE_INT));
|
||||
extern int iq2000_initial_elimination_offset (int, int);
|
||||
extern void iq2000_expand_prologue PARAMS ((void));
|
||||
extern void iq2000_expand_epilogue PARAMS ((void));
|
||||
extern void iq2000_expand_eh_return PARAMS ((rtx));
|
||||
extern int iq2000_can_use_return_insn PARAMS ((void));
|
||||
int function_arg_pass_by_reference PARAMS ((CUMULATIVE_ARGS*, enum machine_mode, tree, int));
|
||||
int iq2000_adjust_insn_length PARAMS ((rtx, int));
|
||||
char *iq2000_output_conditional_branch PARAMS ((rtx, rtx*, int, int, int, int));
|
||||
extern void iq2000_init_builtins PARAMS ((void));
|
||||
extern void iq2000_setup_incoming_varargs PARAMS ((CUMULATIVE_ARGS, int, tree, int*, int));
|
||||
extern void print_operand_address PARAMS ((FILE*, rtx));
|
||||
extern void print_operand PARAMS ((FILE*, rtx, int));
|
||||
|
||||
#ifdef RTX_CODE
|
||||
extern rtx gen_int_relational PARAMS ((enum rtx_code, rtx, rtx, rtx, int*));
|
||||
extern void gen_conditional_branch PARAMS ((rtx *, enum rtx_code));
|
||||
#endif
|
||||
|
||||
#ifdef TREE_CODE
|
||||
extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS*, tree, rtx));
|
||||
extern void function_arg_advance PARAMS ((CUMULATIVE_ARGS*, enum machine_mode, tree, int));
|
||||
extern struct rtx_def* function_arg PARAMS ((CUMULATIVE_ARGS*, enum machine_mode, tree, int));
|
||||
extern int function_arg_partial_nregs PARAMS ((CUMULATIVE_ARGS*, enum machine_mode, tree, int));
|
||||
extern void iq2000_va_start PARAMS ((tree, rtx));
|
||||
extern rtx iq2000_va_arg PARAMS ((tree, tree));
|
||||
extern rtx iq2000_function_value PARAMS ((tree, tree));
|
||||
extern rtx iq2000_expand_builtin PARAMS ((tree, rtx, rtx,
|
||||
enum machine_mode, int));
|
||||
#endif
|
||||
|
||||
#endif /* ! GCC_IQ2000_PROTOS_H */
|
||||
3745
gcc/config/iq2000/iq2000.c
Normal file
3745
gcc/config/iq2000/iq2000.c
Normal file
File diff suppressed because it is too large
Load Diff
1486
gcc/config/iq2000/iq2000.h
Normal file
1486
gcc/config/iq2000/iq2000.h
Normal file
File diff suppressed because it is too large
Load Diff
2553
gcc/config/iq2000/iq2000.md
Normal file
2553
gcc/config/iq2000/iq2000.md
Normal file
File diff suppressed because it is too large
Load Diff
17
gcc/config/iq2000/lib2extra-funcs.c
Normal file
17
gcc/config/iq2000/lib2extra-funcs.c
Normal file
@ -0,0 +1,17 @@
|
||||
typedef unsigned int USItype __attribute__ ((mode (SI)));
|
||||
|
||||
USItype
|
||||
__mulsi3 (USItype a, USItype b)
|
||||
{
|
||||
USItype c = 0;
|
||||
|
||||
while (a != 0)
|
||||
{
|
||||
if (a & 1)
|
||||
c += b;
|
||||
a >>= 1;
|
||||
b <<= 1;
|
||||
}
|
||||
|
||||
return c;
|
||||
}
|
||||
36
gcc/config/iq2000/t-iq2000
Normal file
36
gcc/config/iq2000/t-iq2000
Normal file
@ -0,0 +1,36 @@
|
||||
# Suppress building libgcc1.a, since the MIPS compiler port is complete
|
||||
# and does not need anything from libgcc1.a.
|
||||
LIBGCC1 =
|
||||
CROSS_LIBGCC1 =
|
||||
|
||||
# We must build libgcc2.a with -G 0, in case the user wants to link
|
||||
# without the $gp register.
|
||||
TARGET_LIBGCC2_CFLAGS = -G 0
|
||||
|
||||
LIB2FUNCS_EXTRA = $(srcdir)/config/udivmod.c $(srcdir)/config/divmod.c $(srcdir)/config/udivmodsi4.c $(srcdir)/config/iq2000/lib2extra-funcs.c
|
||||
|
||||
# We want fine grained libraries, so use the new code to build the
|
||||
# floating point emulation libraries.
|
||||
FPBIT = fp-bit.c
|
||||
DPBIT = dp-bit.c
|
||||
|
||||
fp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
echo '#define FLOAT' > fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c >> fp-bit.c
|
||||
|
||||
dp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c > dp-bit.c
|
||||
|
||||
# Enable the following if multilibs are needed.
|
||||
# See gcc/genmultilib, gcc/gcc.texi and gcc/tm.texi for a
|
||||
# description of the options and their values.
|
||||
#
|
||||
# MULTILIB_OPTIONS =
|
||||
# MULTILIB_DIRNAMES =
|
||||
# MULTILIB_MATCHES =
|
||||
# MULTILIB_EXCEPTIONS =
|
||||
# MULTILIB_EXTRA_OPTS =
|
||||
#
|
||||
# LIBGCC = stmp-multilib
|
||||
# INSTALL_LIBGCC = install-multilib
|
||||
|
||||
35
gcc/config/iq2000/xm-iq2000.h
Normal file
35
gcc/config/iq2000/xm-iq2000.h
Normal file
@ -0,0 +1,35 @@
|
||||
/* Configuration for IQ based processors
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
Contributed by Red Hat Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
/* #defines that need visibility everywhere. */
|
||||
#define FALSE 0
|
||||
#define TRUE 1
|
||||
|
||||
/* This describes the machine the compiler is hosted on. */
|
||||
#define HOST_BITS_PER_CHAR 8
|
||||
#define HOST_BITS_PER_SHORT 16
|
||||
#define HOST_BITS_PER_INT 32
|
||||
#define HOST_BITS_PER_LONG 32
|
||||
#define HOST_BITS_PER_LONGLONG 64
|
||||
|
||||
/* Arguments to use with `exit'. */
|
||||
#define SUCCESS_EXIT_CODE 0
|
||||
#define FATAL_EXIT_CODE 33
|
||||
@ -1906,6 +1906,8 @@ GNU Compiler Collection on your machine.
|
||||
@item
|
||||
@uref{#ip2k-*-elf,,ip2k-*-elf}
|
||||
@item
|
||||
@uref{#iq2000-*-elf,,iq2000-*-elf}
|
||||
@item
|
||||
@uref{#m32r-*-elf,,m32r-*-elf}
|
||||
@item
|
||||
@uref{#m6811-elf,,m6811-elf}
|
||||
@ -2756,6 +2758,13 @@ There are no standard Unix configurations.
|
||||
|
||||
Use @samp{configure --target=ip2k-elf --enable-languages=c} to configure GCC@.
|
||||
|
||||
@html
|
||||
<hr />
|
||||
@end html
|
||||
@heading @anchor{iq2000-*-elf}iq2000-*-elf
|
||||
Vitesse IQ2000 processors. These are used in embedded
|
||||
applications. There are no standard Unix configurations.
|
||||
|
||||
@html
|
||||
<hr />
|
||||
@end html
|
||||
|
||||
Loading…
Reference in New Issue
Block a user