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riscv-gcc-1
Commit 34208acf by Alexandre Oliva Committed by Alexandre Oliva
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Implement FR-V FDPIC ABI support for frv-uclinux and frv-linux. 

2004-02-05  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_emit_movsi): Use GOT relocations for
symbols in sections named by the user.
2004-01-30  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/linux.h (TARGET_OS_CPP_BUILTINS): New.
2004-01-27  Alexandre Oliva  <aoliva@redhat.com>
* config.gcc (frv-*-*linux*): Handle like *-*-linux*.
* config/frv/t-linux (EXTRA_MULTILIB_PARTS): Remove, obviated by
the above.
2004-01-20  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.md (symGOT2reg_hilo, symGOTOFF2reg_hilo): Add
one more pseudo to further improve code generation.
2004-01-19  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.md (movdi_ldd): Introduce explicit indirection
inside UNSPEC.
2004-01-16  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_legitimate_address_p): Added
allow_double_reg_p argument.  Adjust all callers.  Use it to
decide whether to enable double-register indirect addressing.
(frv_funcdesc_alias_set): Remove.
(frv_expand_fdpic_call): Force non-SYMBOL_REF operand into
register.  Emit movdi_ldd.
(ldd_address_operand): New.
* config/frv/frv-protos.h (frv_legitimate_address_p): Adjust.
* config/frv/frv.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.
(PREDICATE_CODES): Add ldd_address_operand.
* config/frv/frv.md (movdi_ldd): New.
(symGOT2reg_hilo, symGOTOFF2reg_hilo): Use separate pseudo for
intermediate computations if possible.
(symGOTOFF2reg_i): Fix harmless typo.
2003-12-18  Alexandre Oliva  <aoliva@redhat.com>
* unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Cast
relocated p_vaddr to vaddr type.
* config/frv/frv-protos.h (frv_expand_fdpic_call): Return void.
* config/frv/frv.c (frv_get_funcdesc_alias_set): New.
(frv_expand_fdpic_call): Propagate incoming MEM's expr to funcdesc
MEM, or use a funcdesc alias set.  Use regular move instead of
ldd.
(dbl_memory_one_insn_operand): Recognize function descriptors by
type or by alias set, and don't split them.
* config/frv/frv.md (call, call_value): Never use call_internal
for fdpic.
(call_internal, call_value_internal): Never match for FDPIC.
(call_fdpicdi, call_fdpicsi, call_value_fdpicdi,
call_value_fdpicsi): Require FDPIC.
(ldd): Removed.
2003-12-17  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.h (CRT_GET_RFIB_DATA): Define for __FRV_FDPIC__.
* unwind-dw2-fde-glibc.c: Don't include elf-fdpic.h any more.
(_Unwind_IteratePhdrCallback): Adjust type of load_base for FRV
FDPIC.  Compute data base address.
* config/frv/linux.h (SUBTARGET_DRIVER_SELF_SPECS): Enable -mfdpic
before the other self-specs are processed.
* config/frv/t-linux (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS):
Build with -fPIC.
2003-12-15  Alexandre Oliva  <aoliva@redhat.com>
* unwind-dw2-fde-glibc.c: Don't include bits/elf-fdpic.h if
inhibit_libc is defined.
2003-12-12  Alexandre Oliva  <aoliva@redhat.com>
* unwind-dw2-fde-glibc.c: Include bits/elf-fdpic.h for
__FRV_FDPIC__.
(__RELOC_POINTER): Define.
(_Unwind_IteratePhdrCallback): Use it.
* config/frv/frv.h (Twrite): Define.
(TRANSFER_FROM_TRAMPOLINE): Use it.
* config/frv/linux.h (INVOKE__main): Undefine.
(Twrite): Override.
2003-12-05  Richard Sandiford  <rsandifo@redhat.com>
* doc/invoke.texi (-mlong-calls, -mlinked-fp): Document FRV options.
(-mlibrary-pic): Emphasize that this option generates EABI code.
(-mcpu): Add fr550.
(-mpack): Remove.
2003-11-30  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (int_2word_operand): Reject LABELs, SYMBOL_REFs
and CONSTs in FDPIC mode.
* gcc/config.gcc (with_cpu): Default to fr400 on frv-*-*linux*.
2003-11-29  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv.c (move_source_operand): Don't accept symbolic
constants.
* config/frv/frv.md (*movhi_internal, *movsi_internal): Use an 'n'
rather than 'i' constraint for the 2-instruction alternative.
(*movsi_2word): New, incorporating existing int_2word_operand splitter.
2003-11-29  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv.h (EXTRA_CONSTRAINT_FOR_Q): Renamed from
EXTRA_CONSTRAINT_FOR_Y.
(EXTRA_CONSTRAINT): Remove handling of 'Y'.
* config/frv/frv.md (*movsi_internal): Remove 'Q' constraint.
(addsi3): Change 'Y' constraint to 'Q'.
2003-11-27  Richard Sandiford  <rsandifo@redhat.com>
* reload.c (CONST_POOL_OK_P): New macro.
(find_reloads): Use it to decide whether a constant can be forced
into memory.
* config/frv/frv.h (LEGITIMATE_PIC_OPERAND_P): Return true if the
constant satisfies got12_operand.
(frv_cannot_force_const_mem): Always return true for TARGET_FDPIC.
(frv_legitimate_address_p): Check for valid unspec offsets using
got12_operand rather than frv_legitimate_fdpic_operand_p.
(frv_legitimate_fdpic_operand_p): Delete.
(frv_emit_movsi): Abort if we try to use the FDPIC register during
or after reload.
(frv_legitimate_constant_p): Return LEGITIMATE_PIC_OPERAND_P if
TARGET_FDPIC.
* config/frv/frv.md (*movdf_double): Add alternatives for CONST_DOUBLE.
2003-11-19  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv-protos.h (fdpic_operand, fdpic_got12_operand)
(frv_fdpic_fptr_operand): Don't declare here.
* config/frv/frv.h (EXTRA_CONSTRAINT_FOR_Y): Call got12_operand
rather than fdpic_got12_operand.
(PREDICATE_CODES): Remove symbolic_operand entry.  Add entries for
got12_operand and const_unspec_operand.
* config/frv/frv.c (got12_operand): Renamed from fdpic_got12_operand.
(gpr_or_int12_operand, dbl_memory_one_insn_operand): Update calls.
(symbolic_operand): Remove.
(const_unspec_operand): New predicate.
* config/frv/frv.md (*movsi_got): Use got12_operand.
(*movsi_high_got, *movsi_lo_sum_got): Use const_unspec_operand.
2003-11-18  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv-protos.h (frv_output_addr_const_extra): Remove.
* config/frv/frv.h (OUTPUT_ADDR_CONST_EXTRA): Remove definition.
* config/frv/frv.c (frv_unspec): New structure.
(frv_small_data_reloc_p, frv_const_unspec_p): New functions.
(frv_print_operand_memory_reference): Use frv_const_unspec_p to
validate CONST indices.  Use frv_output_const_unspec to print them.
(frv_print_operand): Update call to unspec_got_name.  Use
frv_output_const_unspec to print constant unspecs.
(frv_legitimate_fdpic_operand_p): Return true if frv_const_unspec_p.
Reject UNSPECs otherwise.
(unspec_got_name): Take the relocation number as argument, not an
rtx containing it.
(frv_output_addr_const_extra): Remove, replacing with...
(frv_output_const_unspec): ...this new function.
(frv_find_base_term): Use frv_const_unspec_p & frv_small_data_reloc_p.
(gpr_or_int12_operand): Use fdpic_got12_operand.
(dbl_memory_one_insn_operand): Likewise.
(fdpic_got12_operand): Use frv_const_unspec_p.
(frv_emit_movsi): Use frv_const_unspec_p to check for CONSTs that
are already legitimate.  Use frv_small_data_reloc_p when deciding
whether to use HIGH/LO_SUM for R_FRV_GOTOFF12 and R_FRV_GPREL12.
2003-11-18  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/t-linux (SHLIB_MAPFILES): Override so as to export...
* config/frv/libgcc-frv.ver: ... frv-specific symbols.  New file.
* config/frv/frv-abi.h (CREATE_DOUBLE_SHIFT): Use branch to local
label, for real this time.
* config/frv/frv.c (frv_local_funcdesc_p): Update to new
representation of visibility.
(fdpic_got12_operand, symbolic_operand): Mark unused arguments as
such.
2003-11-17  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv.h (MASK_LINKED_FP, TARGET_LINKED_FP): New macros.
(TARGET_SWITCHES): Add -mlinked-fp and -mno-linked-fp.
* config/frv/frv.c (frv_override_options): Set MASK_LINKED_FP unless
it was explicitly disabled.
(frv_stack_info): There is no need to save the link register in every
frame unless TARGET_LINKED_FP is true.
(frv_frame_pointer_required): If !TARGET_LINKED_FP, only require a
frame pointer if the stack pointer might change value.
(frv_return_addr_rtx): Check and process "count" argument.
2003-11-14  Richard Sandiford  <rsandifo@redhat.com>
* config/frv/frv-protos.h (frv_legitimize_address): Remove.
(frv_find_base_term): Declare.
* config/frv/frv.h (LEGITIMIZE_ADDRESS): Do nothing.
(FIND_BASE_TERM): Define.
(PREDICATE_CODES): Remove pic_register_operand, pic_symbolic_operand,
small_data_register_operand, small_data_symbolic_operand.  Add
symbolic_operand.
* config/frv/frv.c (const_small_data_p, plus_small_data_p): Delete.
(frv_print_operand_memory_reference, output_move_single): Remove
special handling for unlegitimized sdata addresses.
(frv_legitimate_address_p): Don't allow sums of SDA_BASE_REG
and symbolic addresses.
(frv_legitimize_address, frv_legitimize_fdpic_address): Delete.
(frv_find_base_term): New function.
(int_2word_operand): Check specifically for symbolic address constants.
(pic_register_operand, pic_symbolic_operand): Delete.
(small_data_register_operand, small_data_symbolic_operand): Delete.
(dbl_memory_one_insn_operand): Don't call plus_small_data_p.
Allow UNSPEC_GOT constants if !TARGET_FDPIC.
(move_source_operand): Only accept CONSTs if they're a two-insn
symbolic constant.
(fdpic_got12_operand): Don't require TARGET_FDPIC.
(frv_emit_movsi): Legitimize sdata and -mlibrary-pic addresses
using gen_symGOTOFF2reg*.
(frv_ifcvt_rewrite_mem): Remove (plus gr16 ...) special cases.
(frv_rtx_costs): Give all MEM addresses a cost of 0.  Give MEMs
themselves a cost of 3 insns.
* config/mips/mips.md (*movsi_got): Allow for !TARGET_FDPIC too.
Change predicate to symbolic_operand.
(*movsi_high_got, *movsi_lo_sum_got): Likewise.
(*movsi_lda_sdata): Delete.
(*movsi_pic, movsi_high_pic, movsi_lo_sum_pic): Delete.
2003-11-05  Alexandre Oliva  <aoliva@redhat.com>
* config.gcc: Add t-slibgcc-elf-ver and support --with-cpu for
frv-*-*linux*.
* config/frv/frv-abi.h (CREATE_DOUBLE_SHIFT): Use branch to local
label.
* config/frv/frv.h (DRIVER_SELF_SPECS): Add blank before
-multilib-library-pic.
(LINK_SPEC): Add -z text for -mfdpic.
* config/frv/frvbegin.c (__ROFIXUP_LIST__): Don't define on FDPIC.
* config/frv/frvend.c (__ROFIXUP_END__): Likewise.
* config/frv/linux.h (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC):
Override.
(OPTION_DEFAULT_SPECS, HAS_INIT_SECTION, INIT_SECTION_ASM_OP,
FINI_SECTION_ASM_OP, CRT_CALL_STATIC_FUNCTION): Define.
* config/frv/t-linux (EXTRA_MULTILIB_PARTS): Use
crtstuff-generated files.
2003-10-31  Alexandre Oliva  <aoliva@redhat.com>
* config.gcc: Add frv-*-*linux*.
* config/frv/linux.h, config/frv/t-linux: New.
2003-10-06  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.h (LINK_SPEC): Pass -melf32frvfd to the linker
when -mfdpic even if a linker script is explicitly listed.
2003-10-02  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_override_options): Clear asm_out
unaligned_op for SImode on FDPIC.
(frv_emit_movsi): Use compute_reloc_for_constant to compute the
argument passed to decl_readonly_section.
(frv_assemble_integer): Revert 2003-09-30's change, but make the
whole block run with FDPIC even with -fno-PIC.
2003-10-02  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_cannot_force_const_mem): Don't force
symbol or label plus offset to memory.
(frv_emit_movsi): Emit GPREL only if -mgprel-ro.  Emit 32-bit
GOTOFF and GPREL for LABEL_REF.
* config/frv/frv.h (DRIVER_SELF_SPECS): Add -mgprel-ro with
-mfdpic unless -mno-gprel-ro, -fpic or -fpie.
(MASK_GPREL_RO, TARGET_GPREL_RO): New.
(TARGET_SWITCHES): Added gprel-ro and no-gprel-ro.
* doc/invoke.texi: Document them.
2003-09-30  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv-protos.h (frv_gen_GPsym2reg): Declare.
(frv_splittable_got_operand): Removed.
* config/frv/frv.c (frv_cannot_force_const_mem): Reject HIGH and
LO_SUM.  Add comments.
(frv_override_options): Moved enabling of FDPIC to
DRIVER_SELF_SPECS.  Don't enable MASK_DWORD.
(frv_local_funcdesc_p): Remove unnecessary heck for flag_pie.
(frv_legitimize_fdpic_address): Don't duplicate logic in
frv_emit_movsi.
(frv_gen_GPsym2reg): New.
(unspec_got_name): Added gprel.
(frv_expand_fdpic_call): Add support for inlining PLTs.
(fdpic_fptr_operand): Renamed from frv_fdpic_fptr_operand.
(gpr_or_int12_operand): Added GPREL12.
(pic_symbolic_operand): Match even if !flag_pic for FDPIC.
(small_data_symbolic_operand): Fail if FDPIC.
(fdpic_splittable_got_operand): Removed.
(fdpic_got12_operand): Added GPREL12.
(frv_emit_movsi): Reorganize to avoid duplication.  Emit GPREL
when appropriate.  Fix sdata GOTOFF.
(frv_legitimate_constant_p): Require legitimate PIC operand for
FDPIC with pic, but only a legitimate fdpic operand for non-pic.
(frv_assemble_integer): Move FDPIC funcdesc handling out of
flag_pic case.
(frv_asm_out_constructor, frv_asm_out_destructor): Abort if
frv_assemble_integer fails.
* config/frv/frv.h (DRIVER_SELF_SPECS): New.
(SUBTARGET_DRIVER_SELF_SPECS): New.
(ASM_SPEC): Don't pass -mno-fdpic.
(LINK_SPEC): Pass -melf32frvfd for FDPIC.
(MASK_INLINE_PLT, TARGET_INLINE_PLT): New.
(TARGET_SWITCHES): Add -minline-plt, -mno-inline-plt and
-multilib-library-pic.
(PREDICATE_CODES): Added fdpic_operand, fdpic_fptr_operand,
condexec_si_media_operator, condexec_sf_add_operator and
condexec_sf_conv_operator.  Removed condexec_sf_binary_operator
and condexec_sf_unary_operator.
* config/frv/frv.md (R_FRV_GPREL12, R_FRV_GPRELHI, R_FRV_GPRELLO):
New.
(movsi_got, movsi_high_got, movsi_lo_sum_got): Move before
movsi_internal.  Give them internal names.  movsi_got has type
int.
(fdpic got splitters): Remove.
(symGPREL2reg, symGPREL2reg_hilo): New.
* config/frv/t-frv (MULTILIB_MATCHES): Don't map -fpic and -fPIC
to -mlibrary-pic.  Map -multilib-library-pic to it.
* doc/invoke.texi: -mfdpic, -minline-plt, -multilib-library-pic:
Document.
2003-09-28  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_function_symbol_referenced_p): Declare.
(TARGET_CANNOT_FORCE_CONST_MEM): Define to...
(frv_cannot_force_const_mem): New function.
(const_small_data_p, plus_small_data_p): Update comments on sdata
on FDPIC.
(frv_override_options): Set flag_pie for FDPIC too.
(frv_conditional_register_usage): Mark gr16 and gr17 as non-fixed,
call-saved registers on FDPIC.
(frv_stack_info): Don't preserve the PIC register on FDPIC, and
don't force LR to be preserved.
(frv_expand_prologue): Likewise.
(frv_asm_output_mi_thunk): Use 12-bit funcdesc gotoff for -fpic.
(frv_frame_pointer_required): Don't force it just because the
FDPIC register is used.
(frv_legitimate_address_p) <CONST>: Accept a legitimate FDPIC
operand only if !condexec_p.
(frv_legitimize_address): Return the FDPIC-legitimized address.
Don't match small data here on FDPIC.
(frv_legitimate_fdpic_operand_p): Don't accept unadorned function
symbols.  Use TRUE/FALSE instead of 1/0.
(frv_local_funcdesc_p): New.
(frv_legitimize_fdpic_address): Rewrite to use GOTOFF and 12-bit
immediates when possible.
(pic_symbolic_operand): Accept SYMBOL_REFs and CONSTs in FDPIC.
(dbl_memory_one_insn_operand): Accept addresses that add a REG and
an UNSPEC_GOT.
(frv_emit_movsi): Handle FDPIC before small data.  Use GOTOFF and
12-bit immediates when possible.
(frv_legitimate_constant_p): In FDPIC, reject SImode operands that
are not legitimate pic operands.
(frv_in_small_data_p): Re-enable for FDPIC.
* config/frv/frv.h (SDA_BASE_REG): Remove comment about FDPIC.
(FRV_GLOBAL_P): Removed.
* config/frv/frv.md: Add modes to CONSTs.
(movsi_got): New.
(movsi_lo_sum_got): Use separate matches instead of match_dup.
(movsi_high_pic, movsi_lo_sum_pic): Match on non-FDPIC only.
(fdpic splittable operations): Match on flag_pic != 1.
2003-09-22  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_asm_out_constructor,
frv_asm_out_destructor): Pass to frv_assemble_integer the size in
bytes, not bits.
2003-09-19  Alexandre Oliva  <aoliva@redhat.com>
* config/frv/frv.c (frv_assemble_integer): Reject complex
expressions referencing function SYMBOL_REFs.
* config/frv/frv.c (frv_function_symbol_referenced_p): New.
(move_source_operand): Reject CONSTs that reference function
SYMBOL_REFs on FDPIC.
(frv_emit_movsi): If we get such a CONST, break it up.
* config/frv/frv.h (CPP_SPEC): Define __FRV_FDPIC__ for -mfdpic.
(TRANSFER_FROM_TRAMPOLINE): Use different definitions for FDPIC.
* config/frv/frv.c (frv_print_operand) <I>: Recognize PLUS without
MEM.
(frv_assemble_integer): Don't use funcdesc for LABEL_REFs.
(frv_trampoline_size): Increase for FDPIC.
* config/frv/frv.h (TRAMPOLINE_ALIGNMENT): Bump to 64 for FDPIC.
(TRANSFER_FROM_TRAMPOLINE): Handle FDPIC trampolines.
* config/frv/frv.c (frv_legitimize_fdpic_address, frv_emit_movsi):
Disable use of GOTOFF for now.
(const_small_data_p, plus_small_data_p, frv_in_small_data_p):
Disable use of small data in FDPIC for now.
(frv_asm_output_mi_thunk): Implement for FDPIC.
* config/frv/frv.h (SDA_BASE_REG): Set to -1 with FDPIC.
* config/frv/frv.c (frv_asm_out_constructor): Use
frv_assemble_integer for FDPIC pointers.
(frv_asm_out_destructor): Likewise.
* config/frv/frv.md (ldd): Fix order of operands.  Use
address_operand for input.
2003-09-18  DJ Delorie  <dj@redhat.com>
* config/frv/frv.c (frv_legitimate_fdpic_operand_p): Remove UNSPEC_PIC.
(unspec_got_name): Correct typo.
(frv_emit_movsi): Pre-expand splittable GOTs.
(frv_expand_fdpic_call): Rename gen_lddi to gen_ldd.
* config/frv/frv.md (lddi): Fix syntax error, rename to ldd.
(symGOT2reg_hilo, symGOTOFF2reg_hilo): New.
* config/frv/t-frv: Add -mfdpic multilibs.
* config/frv/frv.h (ASM_SPEC): Pass -mfdpic/-mno-fdpic.
(TARGET_SWITCHES): Add -mno-fdpic, fix documentation.
* config/frv/frv.c (frv_override_options): -mfdpic assumes
flag_pic, default to 32-bit pics, require DWORD ops.
(frv_override_options): Add W and Z constraints.
(frv_expand_prologue): No pic prologue for -mfdpic.
(frv_asm_output_mi_thunk): Support -mfdpic (soon).
(frv_print_operand_memory_reference): Handle GOT constants.
(frv_legitimate_address_p): Allow GOT constants.
(frv_legitimize_address): Handle GOT addresses too.
(frv_legitimate_fdpic_operand_p): New.
(frv_legitimize_fdpic_address): New.
(unspec_got_name): New.
(frv_output_addr_const_extra): New.
(frv_expand_fdpic_call): New.
(frv_fdpic_fptr_operand): New.
(gpr_or_int12_operand): Handle GOT operands.
(int_2word_operand): Handle GOT operands.
(fdpic_operand): New.
(fdpic_splittable_got_operand): New.
(fdpic_got12_operand): New.
(frv_emit_movsi): Handle GOT operands.
(frv_assemble_integer): -mfdpic doesn't use rofixups.
(frv_print_operand): Support 'g' code for GOT operands.
* config/frv/frv-protos.h: Add prototypes as needed.
* config/frv/frv.md (R_FRV_GOT12, R_FRV_GOTHI, R_FRV_GOTLO,
R_FRV_FUNCDESC, R_FRV_FUNCDESC_GOT12, R_FRV_FUNCDESC_GOTHI,
R_FRV_FUNCDESC_GOTLO, R_FRV_FUNCDESC_VALUE,
R_FRV_FUNCDESC_GOTOFF12, R_FRV_FUNCDESC_GOTOFFHI,
R_FRV_FUNCDESC_GOTOFFLO, R_FRV_GOTOFF12, R_FRV_GOTOFFHI,
R_FRV_GOTOFFLO): New.
(movsi_high_got, movsi_lo_sum_got): New.
(*movsi_pic): Don't use this splitter for -mfdpic.
(addsi3): Allow GOT references also.
(call, call_value): Handle -mfdpic separately.
(call_fdpicdi, call_fdpicsi, lddi, call_value_fdpicdi,
call_value_fdpicsi): New.
(symGOT2reg, symGOT2reg_i, got splitters, symGOTOFF2reg,
symGOTOFF2reg_i): New.
* config/frv/frv.h (MASK_FDPIC): New.
(TARGET_FDPIC): New.
(TARGET_SWITCHES): Add -mfdpic.
(FDPIC_FPTR_REGNO): New.
(FDPIC_REGNO): New.
(OUR_FDPIC_REG): New.
(enum reg_class): Add FDPIC_REGS, FDPIC_FPTR_REGS, and
FDPIC_CALL_REGS.
(REG_CLASS_NAMES): Likewise.
(REG_CLASS_CONTENTS): Likewise.
(EXTRA_CONSTRAINT_FOR_Y): New, for 12-bit GOTs.
(EXTRA_CONSTRAINT): Add it here.
(FRV_GLOBAL_P): New.
(OUTPUT_ADDR_CONST_EXTRA): New.

From-SVN: r78373
parent 2d3a667a
Showing with 254 additions and 25 deletions
gcc/config.gcc
......@@ -420,7 +420,7 @@ case ${target} in
*-*-linux*libc1* | *-*-linux*aout*)
# Avoid the generic linux case.
;;
*-*-linux*)
*-*-linux* | frv-*-*linux*)
# Must come before *-*-gnu* (because of *-*-linux-gnu* systems).
extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
gas=yes
......@@ -718,6 +718,11 @@ frv-*-elf)
tmake_file=frv/t-frv
use_fixproto=yes
;;
frv-*-*linux*)
tm_file="dbxelf.h elfos.h svr4.h ${tm_file} \
linux.h frv/linux.h frv/frv-abi.h"
tmake_file="t-slibgcc-elf-ver t-linux frv/t-frv frv/t-linux"
;;
h8300-*-rtems*)
tmake_file="h8300/t-h8300 t-rtems"
tm_file="h8300/h8300.h dbxcoff.h h8300/coff.h h8300/rtems.h rtems.h"
......@@ -2159,6 +2164,9 @@ if test x$with_cpu = x ; then
alphaev5*-*-*)
with_cpu=ev5
;;
frv-*-*linux*)
with_cpu=fr400
;;
sparc*-*-*)
with_cpu="`echo ${target} | sed 's/-.*$//'`"
if [ x$with_cpu = xsparc64 ]; then
......@@ -2269,6 +2277,17 @@ fi
fi
;;
fr*-*-*linux*)
supported_defaults=cpu
case "$with_cpu" in
fr400) ;;
*)
echo "Unknown cpu used in --with-cpu=$with_cpu" 1>&2
exit 1
;;
esac
;;
hppa*-*-* | parisc*-*-*)
supported_defaults="arch schedule"
......
gcc/config/frv/frv-abi.h
/* Frv map GCC names to FR-V ABI.
Copyright (C) 2000 Free Software Foundation, Inc.
Copyright (C) 2000, 2003 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of GCC.
......@@ -43,7 +43,8 @@ __asm__ (".text\n" \
"\t.type\t" #NEW ",@function\n" \
#NEW ":\n" \
"\tor\tgr11, gr0, gr10\n" \
"\tbra\t" #OLD "\n");
".L" #OLD " = " #OLD "\n" \
"\tbra\t.L" #OLD "\n");
#ifdef L_sf_to_df
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY(__extendsfdf2,__ftod)
......
gcc/config/frv/frv-protos.h
......@@ -63,9 +63,9 @@ extern int frv_frame_pointer_required (void);
extern int frv_initial_elimination_offset (int, int);
#ifdef RTX_CODE
extern int frv_legitimate_address_p (enum machine_mode, rtx,
int, int);
extern rtx frv_legitimize_address (rtx, rtx, enum machine_mode);
extern int frv_legitimate_address_p (enum machine_mode, rtx,
int, int, int);
extern rtx frv_find_base_term (rtx);
#ifdef TREE_CODE
extern void frv_init_cumulative_args (CUMULATIVE_ARGS *, tree,
......@@ -225,5 +225,7 @@ extern int even_acc_operand (rtx, enum machine_mode);
extern int quad_acc_operand (rtx, enum machine_mode);
extern int accg_operand (rtx, enum machine_mode);
extern rtx frv_matching_accg_for_acc (rtx);
extern void frv_expand_fdpic_call (rtx *, int);
extern rtx frv_gen_GPsym2reg (rtx, rtx);
#endif
gcc/config/frv/frvbegin.c
......@@ -71,10 +71,13 @@ INIT_SECTION_NEG_ONE (".dtors", "\"aw\"", "__DTOR_LIST__");
INIT_SECTION (".eh_frame", "\"aw\"", "__EH_FRAME_BEGIN__");
#if ! __FRV_FDPIC__
/* In FDPIC, the linker itself generates this. */
/* Beginning of .rofixup section that provides a list of pointers that we
need to adjust. */
INIT_SECTION (".rofixup", "\"a\"", "__ROFIXUP_LIST__");
#endif /* __FRV_FDPIC__ */
extern void __frv_register_eh(void) __attribute__((__constructor__));
extern void __frv_deregister_eh(void) __attribute__((__destructor__));
......
gcc/config/frv/frvend.c
......@@ -64,7 +64,10 @@ FINI_SECTION_ZERO (".dtors", "\"aw\"", "__DTOR_END__");
FINI_SECTION_ZERO (".eh_frame", "\"aw\"", "__FRAME_END__");
#if ! __FRV_FDPIC__
/* In FDPIC, the linker itself generates this. */
/* End of .rofixup section that provides a list of pointers that we
need to adjust. */
FINI_SECTION (".rofixup", "\"a\"", "__ROFIXUP_END__");
#endif /* __FRV_FDPIC__ */
gcc/config/frv/libgcc-frv.ver 0 → 100644
GCC_3.4 {
# frv abi symbol names
__ftod
__ftoi
__ftoui
__dtoi
__ftoui
__dtoui
__ftoll
__dtoll
__ftoull
__dtoull
__itof
__lltof
__dtof
__itod
__lltof
__lltod
__addd
__subd
__muld
__divd
__addf
__subf
__mulf
__divf
__sllll
__srlll
__srall
__addll
__subll
__mulll
__umulll
__divll
__udivll
__modll
__umodll
__cmpll
__cmpf
__cmpd
__andll
__orll
__xorll
__notll
__cmov
__cmovd
__cmovh
__cmovw
__modi
__uitod
__uitof
__ulltod
__ulltof
__umodi
}
gcc/config/frv/linux.h 0 → 100644
/* Target macros for the FRV Linux port of GCC.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Contributed by Red Hat Inc.
This file is part of GCC.
GCC 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.
GCC 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 GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#ifndef __FRV_LINUX_H__
#define __FRV_LINUX_H__
#undef SUBTARGET_DRIVER_SELF_SPECS
#define SUBTARGET_DRIVER_SELF_SPECS \
"%{!mno-fdpic:-mfdpic}",
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
#undef LINK_SPEC
#define LINK_SPEC "\
%{mfdpic: -m elf32frvfd -z text} %{shared} %{pie} \
%{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
%{static}}"
/* Support for compile-time default CPU. */
#define OPTION_DEFAULT_SPECS \
{"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }
/* Define OS-specific predefined preprocessor macros. */
#define TARGET_OS_CPP_BUILTINS() \
do { \
builtin_define ("__gnu_linux__"); \
builtin_define_std ("linux"); \
builtin_define_std ("unix"); \
builtin_assert ("system=linux"); \
} while (0)
#define HAS_INIT_SECTION 1
#define INIT_SECTION_ASM_OP "\t.section .init,\"ax\""
#define FINI_SECTION_ASM_OP "\t.section .fini,\"ax\""
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
asm (SECTION_OP); \
asm ("ldi.p @(fp,4), gr15 ! call " #FUNC); \
asm (TEXT_SECTION_ASM_OP);
#undef INVOKE__main
#undef Twrite
#define Twrite __write
#endif /* __FRV_LINUX_H__ */
gcc/config/frv/t-frv
......@@ -82,9 +82,9 @@ $(T)frvend$(objext): $(srcdir)/config/frv/frvend.c $(GCC_PASSES) \
#MULTILIB_EXCEPTIONS = *mcpu=simple/*msoft-float* *mcpu=frv/*msoft-float*
#MULTILIB_EXTRA_OPTS = mlibrary-pic
MULTILIB_OPTIONS = mcpu=frv/mcpu=fr400/mcpu=simple mno-pack mlibrary-pic
MULTILIB_DIRNAMES = frv fr400 simple unpacked pic
MULTILIB_MATCHES = mcpu?simple=mcpu?fr300 mlibrary-pic=fpic mlibrary-pic=fPIC
MULTILIB_OPTIONS = mcpu=frv/mcpu=fr400/mcpu=simple mno-pack mlibrary-pic/mfdpic
MULTILIB_DIRNAMES = frv fr400 simple unpacked pic fdpic
MULTILIB_MATCHES = mcpu?simple=mcpu?fr300 mlibrary-pic=multilib-library-pic
MULTILIB_EXCEPTIONS = mcpu=frv/mno-pack* mcpu=simple/mno-pack*
LIBGCC = stmp-multilib
......
gcc/config/frv/t-linux 0 → 100644
# We don't want multilibs.
MULTILIB_OPTIONS=
MULTILIB_DIRNAMES=
MULTILIB_MATCHES=
MULTILIB_EXCEPTIONS=
MULTILIB_EXTRA_OPTS=
CRTSTUFF_T_CFLAGS = -fPIC
TARGET_LIBGCC2_CFLAGS = -fPIC
SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver \
$(srcdir)/config/frv/libgcc-frv.ver
gcc/doc/invoke.texi
......@@ -633,6 +633,7 @@ in the following sections.
-malloc-cc -mfixed-cc -mdword -mno-dword @gol
-mdouble -mno-double @gol
-mmedia -mno-media -mmuladd -mno-muladd @gol
-mfdpic -minline-plt -mgprel-ro -multilib-library-pic -mlinked-fp @gol
-mlibrary-pic -macc-4 -macc-8 @gol
-mpack -mno-pack -mno-eflags -mcond-move -mno-cond-move @gol
-mscc -mno-scc -mcond-exec -mno-cond-exec @gol
......@@ -8655,6 +8656,53 @@ configure option, gcc's program search path, and finally by the user's
@env{PATH}. The linker used by GCC can be printed using @samp{which
`gcc -print-prog-name=ld`}.
@item -mfdpic
@opindex mfdpic
Select the FDPIC ABI, that uses function descriptors to represent
pointers to functions. Without any PIC/PIE-related options, it
implies @option{-fPIE}. With @option{-fpic} or @option{-fpie}, it
assumes GOT entries and small data are within a 12-bit range from the
GOT base address; with @option{-fPIC} or @option{-fPIE}, GOT offsets
are computed with 32 bits.
@item -minline-plt
@opindex minline-plt
Enable inlining of PLT entries in function calls to functions that are
not known to bind locally. It has no effect without @option{-mfdpic}.
It's enabled by default if optimizing for speed and compiling for
shared libraries (i.e., @option{-fPIC} or @option{-fpic}), or when an
optimization option such as @option{-O3} or above is present in the
command line.
@item -mgprel-ro
@opindex mgprel-ro
Enable the use of @code{GPREL} relocations in the FDPIC ABI for data
that is known to be in read-only sections. It's enabled by default,
except for @option{-fpic} or @option{-fpie}: even though it may help
make the global offset table smaller, it trades 1 instruction for 4.
With @option{-fPIC} or @option{-fPIE}, it trades 3 instructions for 4,
one of which may be shared by multiple symbols, and it avoids the need
for a GOT entry for the referenced symbol, so it's more likely to be a
win. If it is not, @option{-mno-gprel-ro} can be used to disable it.
@item -multilib-library-pic
@opindex multilib-library-pic
Link with the (library, not FD) pic libraries. It's implied by
@option{-mlibrary-pic}, as well as by @option{-fPIC} and
@option{-fpic} without @option{-mfdpic}. You should never have to use
it explicitly.
@item -mlinked-fp
@opindex mlinked-fp
Follow the EABI requirement of always creating a frame pointer whenever
a stack frame is allocated. This option is enabled by default and can
be disabled with @option{-mno-linked-fp}.
@item -mlong-calls
@opindex mno-long-calls
Generate code that uses long call sequences. This ensures that a call
......@@ -10429,7 +10477,7 @@ Do not use multiply and add/subtract instructions.
@item -mlibrary-pic
@opindex mlibrary-pic
Enable PIC support for building libraries
Generate position-independent EABI code.
@item -macc-4
@opindex macc-4
......
gcc/reload.c
......@@ -105,6 +105,7 @@ a register with any other reload. */
#include "function.h"
#include "toplev.h"
#include "params.h"
#include "target.h"
#ifndef REGNO_MODE_OK_FOR_BASE_P
#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) REGNO_OK_FOR_BASE_P (REGNO)
......@@ -113,6 +114,12 @@ a register with any other reload. */
#ifndef REG_MODE_OK_FOR_BASE_P
#define REG_MODE_OK_FOR_BASE_P(REGNO, MODE) REG_OK_FOR_BASE_P (REGNO)
#endif
/* True if X is a constant that can be forced into the constant pool. */
#define CONST_POOL_OK_P(X) \
(CONSTANT_P (X) \
&& GET_CODE (X) != HIGH \
&& !targetm.cannot_force_const_mem (X))
/* All reloads of the current insn are recorded here. See reload.h for
comments. */
......@@ -3114,9 +3121,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
&& reg_renumber[REGNO (operand)] < 0))
win = 1;
if (CONSTANT_P (operand)
/* force_const_mem does not accept HIGH. */
&& GET_CODE (operand) != HIGH)
if (CONST_POOL_OK_P (operand))
badop = 0;
constmemok = 1;
break;
......@@ -3178,8 +3183,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
&& offsettable_memref_p (reg_equiv_mem[REGNO (operand)]))
|| (reg_equiv_address[REGNO (operand)] != 0))))
win = 1;
/* force_const_mem does not accept HIGH. */
if ((CONSTANT_P (operand) && GET_CODE (operand) != HIGH)
if (CONST_POOL_OK_P (operand)
|| GET_CODE (operand) == MEM)
badop = 0;
constmemok = 1;
......@@ -3299,7 +3303,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
/* If we didn't already win, we can reload
constants via force_const_mem, and other
MEMs by reloading the address like for 'o'. */
if ((CONSTANT_P (operand) && GET_CODE (operand) != HIGH)
if (CONST_POOL_OK_P (operand)
|| GET_CODE (operand) == MEM)
badop = 0;
constmemok = 1;
......@@ -3375,9 +3379,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
an early reload pass. Note that the test here is
precisely the same as in the code below that calls
force_const_mem. */
if (CONSTANT_P (operand)
/* force_const_mem does not accept HIGH. */
&& GET_CODE (operand) != HIGH
if (CONST_POOL_OK_P (operand)
&& ((PREFERRED_RELOAD_CLASS (operand,
(enum reg_class) this_alternative[i])
== NO_REGS)
......@@ -3751,9 +3753,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
into registers are here changed into memory references. */
for (i = 0; i < noperands; i++)
if (! goal_alternative_win[i]
&& CONSTANT_P (recog_data.operand[i])
/* force_const_mem does not accept HIGH. */
&& GET_CODE (recog_data.operand[i]) != HIGH
&& CONST_POOL_OK_P (recog_data.operand[i])
&& ((PREFERRED_RELOAD_CLASS (recog_data.operand[i],
(enum reg_class) goal_alternative[i])
== NO_REGS)
......
gcc/unwind-dw2-fde-glibc.c
......@@ -52,6 +52,10 @@
&& (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
#ifndef __RELOC_POINTER
# define __RELOC_POINTER(ptr, base) ((ptr) + (base))
#endif
static const fde * _Unwind_Find_registered_FDE (void *pc, struct dwarf_eh_bases *bases);
#define _Unwind_Find_FDE _Unwind_Find_registered_FDE
......@@ -109,7 +113,11 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
long n, match;
#ifdef __FRV_FDPIC__
struct elf32_fdpic_loadaddr load_base;
#else
_Unwind_Ptr load_base;
#endif
const unsigned char *p;
const struct unw_eh_frame_hdr *hdr;
_Unwind_Ptr eh_frame;
......@@ -132,7 +140,8 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
{
if (phdr->p_type == PT_LOAD)
{
_Unwind_Ptr vaddr = phdr->p_vaddr + load_base;
_Unwind_Ptr vaddr = (_Unwind_Ptr)
__RELOC_POINTER (phdr->p_vaddr, load_base);
if (data->pc >= vaddr && data->pc < vaddr + phdr->p_memsz)
match = 1;
}
......@@ -146,7 +155,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
/* Read .eh_frame_hdr header. */
hdr = (const struct unw_eh_frame_hdr *)
(p_eh_frame_hdr->p_vaddr + load_base);
__RELOC_POINTER (p_eh_frame_hdr->p_vaddr, load_base);
if (hdr->version != 1)
return 1;
......@@ -157,7 +166,8 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
{
/* For dynamically linked executables and shared libraries,
DT_PLTGOT is the gp value for that object. */
ElfW(Dyn) *dyn = (ElfW(Dyn) *) (p_dynamic->p_vaddr + load_base);
ElfW(Dyn) *dyn = (ElfW(Dyn) *)
__RELOC_POINTER (p_dynamic->p_vaddr, load_base);
for (; dyn->d_tag != DT_NULL ; dyn++)
if (dyn->d_tag == DT_PLTGOT)
{
......@@ -166,6 +176,8 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
break;
}
}
# elif defined __FRV_FDPIC__ && defined __linux__
data->dbase = load_base.got_value;
# else
# error What is DW_EH_PE_datarel base on this platform?
# endif
......
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