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Commit 5848830f by Paul Brook Committed by Paul Brook
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config.gcc: Add --with-abi= 

	* config.gcc <arm>: Add --with-abi=
	* config/arm/arm-protos.h (arm_get_frame_size, thumb_get_frame_size,
	thumb_far_jump_used): Remove prototypes.
	(arm_needs_doubleword_align): Add prototype.
	(thumb_compute_initial_elimination_offset): Ditto.
	* config/arm/arm.c (arm_get_frame_offsets): New function.
	(use_return_insn, output_return_instruction, arm_output_epilogue,
	arm_output_function_epilogue, arm_compute_initial_elimination_offset,
	arm_expand_prologue, thumb_expand_epilogue): Use it.
	(arm_abi, target_abi_name, all_arm_abis): New variables.
	(arm_override_options): Set them.  Set structure padding for AAPCS.
	(arm_return_in_memory): Update ABI check.
	(arm_init_cumulative_args): Initialize can_split.
	(arm_needs_doubleword_align): New function.
	(arm_function_arg): Don't split args after pushing to stack. Handle
	doubleword/even reg alignment.
	(arm_va_arg): Handle all doubleword aligned args.
	(add_minpoolforward ref, dump_minpool, push_minpool_fix): Align based
	on ABI, not CPU.
	(arm_compute_save_reg0_reg12_mask): Fix comment.
	(thumb_get_frame_size, thumb_get_frame_size): Remove.
	(thumb_jump_far_used_p): Remove superfluous argument.  Return save
	value for alignment.
	(thumb_unexpanded_epilogue, thumb_output_function_prologue): Change
	to match.
	(thumb_compute_initial_elimination_offset): New function.
	(thumb_expand_prologue): Use arm_get_frame_offsets.  Remove
	unneccessary rounding.
	* config/arm/arm.h (target_abi_name): Declare.
	(ARM_DOUBLEWORD_ALIGN, DOUBLEWORD_ALIGNMENT, TARGET_IWMMXT_ABI,
	arm_abi_type, ARM_DEFAULT_ABI): Define.
	(ARM_FLAG_ATPCS): Remove.
	(TARGET_OPTIONS, OPTION_DEFAULT_SPECS): Add -mabi=.
	(BIGGEST_ALIGNMENT, PREFERRED_STACK_BOUNDARY, STACK_BOUNDARY): Use it.
	(ADJUST_FIELD_ALIGN, DATA_ALIGNMENT, LOCAL_ALIGNMENT,
	TYPE_NEEDS_IWMMXT_ALIGNMENT): Remove.
	(LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P, FUNCTION_ARG_REGNO_P):
	Contitionalize on ABI, not CPU.
	(struct arm_stack_offsets): Define.
	(struct machine_function): Add stack_offsets.  Remove frame_size.
	(FUNCTION_ARG_PARTIAL_NREGS): Don't split if previous args have been
	pushed.
	(FUNCTION_ARG_ADVANCE, FUNCTION_ARG_BOUNDARY): Handle general
	doubleword alignment.
	(THUMB_INITIAL_ELIMINATION_OFFSET,
	ARM_INITIAL_ELIMINATION_OFFSET): Remove.
	(INITIAL_ELIMINATION_OFFSET): Call functions directly.
	* config/arm/arm.md (align_8): Enable for all targets.
	* config/arm/netbsd-elf.h (TARGET_DEFAULT): Remove TARGET_ATPCS.
	(ARM_DEFAULT_ABI): Define.
	* doc/invoke.texi <ARM>: Document -mabi=. Update documentation for
	-mstructure-size-boundary.

From-SVN: r79921
parent b4a76c01
Showing with 92 additions and 16 deletions
gcc/ChangeLog
2004-03-24 Paul Brook <paul@nowt.org>
* config.gcc <arm>: Add --with-abi=
* config/arm/arm-protos.h (arm_get_frame_size, thumb_get_frame_size,
thumb_far_jump_used): Remove prototypes.
(arm_needs_doubleword_align): Add prototype.
(thumb_compute_initial_elimination_offset): Ditto.
* config/arm/arm.c (arm_get_frame_offsets): New function.
(use_return_insn, output_return_instruction, arm_output_epilogue,
arm_output_function_epilogue, arm_compute_initial_elimination_offset,
arm_expand_prologue, thumb_expand_epilogue): Use it.
(arm_abi, target_abi_name, all_arm_abis): New variables.
(arm_override_options): Set them. Set structure padding for AAPCS.
(arm_return_in_memory): Update ABI check.
(arm_init_cumulative_args): Initialize can_split.
(arm_needs_doubleword_align): New function.
(arm_function_arg): Don't split args after pushing to stack. Handle
doubleword/even reg alignment.
(arm_va_arg): Handle all doubleword aligned args.
(add_minpoolforward ref, dump_minpool, push_minpool_fix): Align based
on ABI, not CPU.
(arm_compute_save_reg0_reg12_mask): Fix comment.
(thumb_get_frame_size, thumb_get_frame_size): Remove.
(thumb_jump_far_used_p): Remove superfluous argument. Return save
value for alignment.
(thumb_unexpanded_epilogue, thumb_output_function_prologue): Change
to match.
(thumb_compute_initial_elimination_offset): New function.
(thumb_expand_prologue): Use arm_get_frame_offsets. Remove
unneccessary rounding.
* config/arm/arm.h (target_abi_name): Declare.
(ARM_DOUBLEWORD_ALIGN, DOUBLEWORD_ALIGNMENT, TARGET_IWMMXT_ABI,
arm_abi_type, ARM_DEFAULT_ABI): Define.
(ARM_FLAG_ATPCS): Remove.
(TARGET_OPTIONS, OPTION_DEFAULT_SPECS): Add -mabi=.
(BIGGEST_ALIGNMENT, PREFERRED_STACK_BOUNDARY, STACK_BOUNDARY): Use it.
(ADJUST_FIELD_ALIGN, DATA_ALIGNMENT, LOCAL_ALIGNMENT,
TYPE_NEEDS_IWMMXT_ALIGNMENT): Remove.
(LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P, FUNCTION_ARG_REGNO_P):
Contitionalize on ABI, not CPU.
(struct arm_stack_offsets): Define.
(struct machine_function): Add stack_offsets. Remove frame_size.
(FUNCTION_ARG_PARTIAL_NREGS): Don't split if previous args have been
pushed.
(FUNCTION_ARG_ADVANCE, FUNCTION_ARG_BOUNDARY): Handle general
doubleword alignment.
(THUMB_INITIAL_ELIMINATION_OFFSET,
ARM_INITIAL_ELIMINATION_OFFSET): Remove.
(INITIAL_ELIMINATION_OFFSET): Call functions directly.
* config/arm/arm.md (align_8): Enable for all targets.
* config/arm/netbsd-elf.h (TARGET_DEFAULT): Remove TARGET_ATPCS.
(ARM_DEFAULT_ABI): Define.
* doc/invoke.texi <ARM>: Document -mabi=. Update documentation for
-mstructure-size-boundary.
2004-03-24 Nathanael Nerode <neroden@gcc.gnu.org>
* configure.ac: Check for -Wno-variadic-macros; don't use
......
gcc/config.gcc
......@@ -2226,7 +2226,7 @@ fi
;;
arm*-*-*)
supported_defaults="arch cpu float tune fpu"
supported_defaults="arch cpu float tune fpu abi"
for which in cpu tune; do
eval "val=\$with_$which"
case "$val" in
......@@ -2280,13 +2280,24 @@ fi
# OK
;;
*)
echo "Unknown fpu used in --with-fpu=$fpu" 2>&1
echo "Unknown fpu used in --with-fpu=$with_fpu" 2>&1
exit 1
;;
esac
case "$with_abi" in
"" \
| apcs-gnu | atpcs | aapcs | iwmmxt )
#OK
;;
*)
echo "Unknown ABI used in --with-abi=$with_abi"
exit 1
;;
esac
if test "x$with_arch" != x && test "x$with_cpu" != x; then
echo "Warning: --with-arch overrides --with-cpu" 1>&2
echo "Warning: --with-arch overrides --with-cpu=$with_cpu" 1>&2
fi
;;
......
gcc/config/arm/arm-protos.h
......@@ -31,12 +31,13 @@ extern void arm_finalize_pic (int);
extern int arm_volatile_func (void);
extern const char *arm_output_epilogue (rtx);
extern void arm_expand_prologue (void);
extern HOST_WIDE_INT arm_get_frame_size (void);
extern const char *arm_strip_name_encoding (const char *);
extern void arm_asm_output_labelref (FILE *, const char *);
extern unsigned long arm_current_func_type (void);
extern unsigned int arm_compute_initial_elimination_offset (unsigned int,
unsigned int);
extern HOST_WIDE_INT thumb_compute_initial_elimination_offset (unsigned int,
unsigned int);
#ifdef TREE_CODE
extern int arm_return_in_memory (tree);
......@@ -157,6 +158,7 @@ extern void arm_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
extern rtx arm_va_arg (tree, tree);
extern int arm_function_arg_pass_by_reference (CUMULATIVE_ARGS *,
enum machine_mode, tree, int);
extern bool arm_needs_doubleword_align (enum machine_mode, tree);
#endif
#if defined AOF_ASSEMBLER
......@@ -175,9 +177,7 @@ extern int arm_float_words_big_endian (void);
/* Thumb functions. */
extern void arm_init_expanders (void);
extern int thumb_far_jump_used_p (int);
extern const char *thumb_unexpanded_epilogue (void);
extern HOST_WIDE_INT thumb_get_frame_size (void);
extern void thumb_expand_prologue (void);
extern void thumb_expand_epilogue (void);
#ifdef TREE_CODE
......
gcc/config/arm/arm.md
......@@ -10102,7 +10102,7 @@
(define_insn "align_8"
[(unspec_volatile [(const_int 0)] VUNSPEC_ALIGN8)]
"TARGET_REALLY_IWMMXT"
"TARGET_EITHER"
"*
assemble_align (64);
return \"\";
......
gcc/config/arm/netbsd-elf.h
......@@ -38,10 +38,12 @@
(ARM_FLAG_APCS_32 \
| ARM_FLAG_SOFT_FLOAT \
| ARM_FLAG_APCS_FRAME \
| ARM_FLAG_ATPCS \
| ARM_FLAG_MMU_TRAPS \
| TARGET_ENDIAN_DEFAULT)
#undef ARM_DEFAULT_ABI
#define ARM_DEFAULT_ABI ARM_ABI_ATPCS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
......
gcc/doc/invoke.texi
......@@ -368,6 +368,7 @@ in the following sections.
@emph{ARM Options}
@gccoptlist{-mapcs-frame -mno-apcs-frame @gol
-mabi=@var{name} @gol
-mapcs-26 -mapcs-32 @gol
-mapcs-stack-check -mno-apcs-stack-check @gol
-mapcs-float -mno-apcs-float @gol
......@@ -6413,6 +6414,11 @@ These @samp{-m} options are defined for Advanced RISC Machines (ARM)
architectures:
@table @gcctabopt
@item -mabi=@var{name}
@opindex mabi
Generate code for the specified ABI. Permissible values are: @samp{apcs-gnu},
@samp{atpcs}, @samp{aapcs} and @samp{iwmmxt}.
@item -mapcs-frame
@opindex mapcs-frame
Generate a stack frame that is compliant with the ARM Procedure Call
......@@ -6635,14 +6641,16 @@ floating point values.
@item -mstructure-size-boundary=@var{n}
@opindex mstructure-size-boundary
The size of all structures and unions will be rounded up to a multiple
of the number of bits set by this option. Permissible values are 8 and
32. The default value varies for different toolchains. For the COFF
targeted toolchain the default value is 8. Specifying the larger number
can produce faster, more efficient code, but can also increase the size
of the program. The two values are potentially incompatible. Code
compiled with one value cannot necessarily expect to work with code or
libraries compiled with the other value, if they exchange information
using structures or unions.
of the number of bits set by this option. Permissible values are 8, 32
and 64. The default value varies for different toolchains. For the COFF
targeted toolchain the default value is 8. A value of 64 is only allowed
if the underlying ABI supports it.
Specifying the larger number can produce faster, more efficient code, but
can also increase the size of the program. Different values are potentially
incompatible. Code compiled with one value cannot necessarily expect to
work with code or libraries compiled with annother value, if they exchange
information using structures or unions.
@item -mabort-on-noreturn
@opindex mabort-on-noreturn
......
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