mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-06-24 04:00:07 +08:00
* config/bfin-defs.h (Expr_Node_Type enum): Add Expr_Node_GOT_Reloc.
* config/bfin-lex.l: Recognize GOT17M4 and FUNCDESC_GOT17M4. * config/bfin-parse.y: Include "libbfd.h", "elf/common.h" and "elf/bfin.h". (GOT17M4, FUNCDESC_GOT17M4): New tokens of type <value>. (any_gotrel): New rule. (got): Use it, and create Expr_Node_GOT_Reloc nodes. * config/tc-bfin.c: Include "libbfd.h", "elf/common.h" and "elf/bfin.h". (DEFAULT_FLAGS, bfin_flags, bfin_pic_flag): New. (bfin_pic_ptr): New function. (md_pseudo_table): Add it for ".picptr". (OPTION_FDPIC): New macro. (md_longopts): Add -mfdpic. (md_parse_option): Handle it. (md_begin): Set BFD flags. (md_apply_fix3, bfin_fix_adjustable): Handle new relocs. (bfin_gen_ldstidxi): Adjust to match the trees that the parser gives us for GOT relocs. * Makefile.am (bfin-parse.o): Update dependencies. (DEPTC_bfin_elf): Likewise. * Makefile.in: Regenerate.
This commit is contained in:
Bernd Schmidt
@ -1,3 +1,28 @@
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2006-03-25 Bernd Schmidt <bernd.schmidt@analog.com>
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* config/bfin-defs.h (Expr_Node_Type enum): Add Expr_Node_GOT_Reloc.
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* config/bfin-lex.l: Recognize GOT17M4 and FUNCDESC_GOT17M4.
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* config/bfin-parse.y: Include "libbfd.h", "elf/common.h" and
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"elf/bfin.h".
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(GOT17M4, FUNCDESC_GOT17M4): New tokens of type <value>.
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(any_gotrel): New rule.
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(got): Use it, and create Expr_Node_GOT_Reloc nodes.
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* config/tc-bfin.c: Include "libbfd.h", "elf/common.h" and
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"elf/bfin.h".
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(DEFAULT_FLAGS, bfin_flags, bfin_pic_flag): New.
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(bfin_pic_ptr): New function.
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(md_pseudo_table): Add it for ".picptr".
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(OPTION_FDPIC): New macro.
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(md_longopts): Add -mfdpic.
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(md_parse_option): Handle it.
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(md_begin): Set BFD flags.
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(md_apply_fix3, bfin_fix_adjustable): Handle new relocs.
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(bfin_gen_ldstidxi): Adjust to match the trees that the parser gives
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us for GOT relocs.
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* Makefile.am (bfin-parse.o): Update dependencies.
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(DEPTC_bfin_elf): Likewise.
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* Makefile.in: Regenerate.
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2006-03-25 Richard Sandiford <richard@codesourcery.com>
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* config/tc-m68k.c (m68k_cpus): Change cpu_cf5208 entries to use
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@ -613,7 +613,8 @@ $(srcdir)/config/m68k-parse.h: ; @true
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bfin-parse.c: $(srcdir)/config/bfin-parse.y
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$(SHELL) $(YLWRAP) $(srcdir)/config/bfin-parse.y y.tab.c bfin-parse.c y.tab.h bfin-parse.h -- $(YACCCOMPILE) -d ;
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bfin-parse.h: bfin-parse.c
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bfin-parse.o: bfin-parse.c bfin-parse.h $(srcdir)/config/bfin-defs.h
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bfin-parse.o: bfin-parse.c bfin-parse.h $(srcdir)/config/bfin-defs.h \
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$(INCDIR)/elf/common.h $(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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bfin-defs.h: ; @true
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$(srcdir)/config/bfin-defs.h: ; @true
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@ -1021,14 +1022,17 @@ DEPTC_bfin_coff = $(INCDIR)/symcat.h $(srcdir)/config/obj-coff.h \
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$(BFDDIR)/libcoff.h $(INCDIR)/bfdlink.h struc-symbol.h \
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$(srcdir)/config/obj-elf.h $(BFDDIR)/elf-bfd.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h dwarf2dbg.h \
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$(srcdir)/config/bfin-defs.h $(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h \
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$(srcdir)/config/bfin-aux.h $(INCDIR)/opcode/bfin.h
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$(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h \
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$(srcdir)/config/bfin-aux.h $(INCDIR)/opcode/bfin.h \
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$(srcdir)/config/bfin-defs.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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DEPTC_bfin_elf = $(INCDIR)/symcat.h $(srcdir)/config/obj-elf.h \
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$(BFDDIR)/elf-bfd.h $(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h \
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$(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h $(srcdir)/config/tc-bfin.h \
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dwarf2dbg.h struc-symbol.h $(srcdir)/config/bfin-defs.h \
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$(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h $(srcdir)/config/bfin-aux.h \
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$(INCDIR)/opcode/bfin.h
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$(INCDIR)/opcode/bfin.h $(srcdir)/config/bfin-defs.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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DEPTC_cris_aout = $(INCDIR)/symcat.h $(srcdir)/config/obj-aout.h \
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$(srcdir)/config/tc-cris.h $(BFDDIR)/libaout.h $(INCDIR)/bfdlink.h \
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$(INCDIR)/safe-ctype.h subsegs.h $(INCDIR)/obstack.h \
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@ -802,15 +802,18 @@ DEPTC_bfin_coff = $(INCDIR)/symcat.h $(srcdir)/config/obj-coff.h \
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$(BFDDIR)/libcoff.h $(INCDIR)/bfdlink.h struc-symbol.h \
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$(srcdir)/config/obj-elf.h $(BFDDIR)/elf-bfd.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h dwarf2dbg.h \
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$(srcdir)/config/bfin-defs.h $(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h \
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$(srcdir)/config/bfin-aux.h $(INCDIR)/opcode/bfin.h
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$(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h \
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$(srcdir)/config/bfin-aux.h $(INCDIR)/opcode/bfin.h \
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$(srcdir)/config/bfin-defs.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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DEPTC_bfin_elf = $(INCDIR)/symcat.h $(srcdir)/config/obj-elf.h \
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$(BFDDIR)/elf-bfd.h $(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h \
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$(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h $(srcdir)/config/tc-bfin.h \
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dwarf2dbg.h struc-symbol.h $(srcdir)/config/bfin-defs.h \
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$(INCDIR)/obstack.h $(INCDIR)/safe-ctype.h $(srcdir)/config/bfin-aux.h \
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$(INCDIR)/opcode/bfin.h
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$(INCDIR)/opcode/bfin.h $(srcdir)/config/bfin-defs.h $(INCDIR)/elf/common.h \
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$(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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DEPTC_cris_aout = $(INCDIR)/symcat.h $(srcdir)/config/obj-aout.h \
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$(srcdir)/config/tc-cris.h $(BFDDIR)/libaout.h $(INCDIR)/bfdlink.h \
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@ -2966,7 +2969,8 @@ $(srcdir)/config/m68k-parse.h: ; @true
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bfin-parse.c: $(srcdir)/config/bfin-parse.y
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$(SHELL) $(YLWRAP) $(srcdir)/config/bfin-parse.y y.tab.c bfin-parse.c y.tab.h bfin-parse.h -- $(YACCCOMPILE) -d ;
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bfin-parse.h: bfin-parse.c
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bfin-parse.o: bfin-parse.c bfin-parse.h $(srcdir)/config/bfin-defs.h
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bfin-parse.o: bfin-parse.c bfin-parse.h $(srcdir)/config/bfin-defs.h \
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$(INCDIR)/elf/common.h $(INCDIR)/elf/bfin.h $(BFDDIR)/libbfd.h
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bfin-defs.h: ; @true
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$(srcdir)/config/bfin-defs.h: ; @true
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@ -263,6 +263,7 @@ typedef enum
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Expr_Node_Binop, /* Binary operator. */
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Expr_Node_Unop, /* Unary operator. */
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Expr_Node_Reloc, /* Symbol to be relocated. */
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Expr_Node_GOT_Reloc, /* Symbol to be relocated using the GOT. */
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Expr_Node_Constant /* Constant. */
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} Expr_Node_Type;
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@ -241,6 +241,8 @@ abort return ABORT;
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[aA]0"."[wW] _REG.regno = REG_A0w; return REG;
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[aA]0 _REG.regno = REG_A0; return REG_A_DOUBLE_ZERO;
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[Gg][Oo][Tt] return GOT;
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[Gg][Oo][Tt]"17"[Mm]"4" return GOT17M4;
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[Ff][Uu][Nn][Cc][Dd][Ee][Ss][Cc]"_"[Gg][Oo][Tt]"17"[Mm]"4" return FUNCDESC_GOT17M4;
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[Pp][Ll][Tt][Pp][Cc] return PLTPC;
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@ -21,10 +21,14 @@
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%{
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#include <stdio.h>
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#include "bfin-aux.h"
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#include <stdarg.h>
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#include <obstack.h>
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#include "bfin-aux.h" // opcode generating auxiliaries
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#include "libbfd.h"
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#include "elf/common.h"
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#include "elf/bfin.h"
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#define DSP32ALU(aopcde, HL, dst1, dst0, src0, src1, s, x, aop) \
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bfin_gen_dsp32alu (HL, aopcde, aop, s, x, dst0, dst1, src0, src1)
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@ -485,7 +489,8 @@ is_group2 (INSTR_T x)
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%token STATUS_REG
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%token MNOP
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%token SYMBOL NUMBER
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%token GOT AT PLTPC
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%token GOT GOT17M4 FUNCDESC_GOT17M4
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%token AT PLTPC
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/* Types. */
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%type <instr> asm
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@ -544,7 +549,7 @@ is_group2 (INSTR_T x)
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%type <expr> got
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%type <expr> got_or_expr
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%type <expr> pltpc
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%type <value> any_gotrel GOT GOT17M4 FUNCDESC_GOT17M4
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/* Precedence rules. */
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%left BAR
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@ -4111,9 +4116,20 @@ symbol: SYMBOL
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}
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;
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got: symbol AT GOT
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any_gotrel:
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GOT
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{ $$ = BFD_RELOC_BFIN_GOT; }
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| GOT17M4
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{ $$ = BFD_RELOC_BFIN_GOT17M4; }
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| FUNCDESC_GOT17M4
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{ $$ = BFD_RELOC_BFIN_FUNCDESC_GOT17M4; }
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;
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got: symbol AT any_gotrel
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{
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$$ = $1;
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Expr_Node_Value val;
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val.i_value = $3;
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$$ = Expr_Node_Create (Expr_Node_GOT_Reloc, val, $1, NULL);
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}
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;
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@ -28,6 +28,9 @@
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#ifdef OBJ_ELF
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#include "dwarf2dbg.h"
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#endif
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#include "libbfd.h"
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#include "elf/common.h"
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#include "elf/bfin.h"
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extern int yyparse (void);
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struct yy_buffer_state;
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@ -45,6 +48,12 @@ int last_insn_size;
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extern struct obstack mempool;
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FILE *errorf;
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/* Flags to set in the elf header */
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#define DEFAULT_FLAGS 0
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static flagword bfin_flags = DEFAULT_FLAGS;
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static const char *bfin_pic_flag = (const char *)0;
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/* Registers list. */
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struct bfin_reg_entry
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{
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@ -202,21 +211,57 @@ static const struct bfin_reg_entry bfin_reg_info[] = {
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{0, 0}
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};
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/* Blackfin specific function to handle FD-PIC pointer initializations. */
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const pseudo_typeS md_pseudo_table[] = {
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{"align", s_align_bytes, 0},
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{"byte2", cons, 2},
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{"byte4", cons, 4},
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{"code", obj_elf_section, 0},
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{"db", cons, 1},
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{"dd", cons, 4},
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{"dw", cons, 2},
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{"p", s_ignore, 0},
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{"pdata", s_ignore, 0},
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{"var", s_ignore, 0},
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{"bss", bfin_s_bss, 0},
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{0, 0, 0}
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};
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static void
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bfin_pic_ptr (int nbytes)
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{
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expressionS exp;
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char *p;
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if (nbytes != 4)
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abort ();
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#ifdef md_flush_pending_output
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md_flush_pending_output ();
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#endif
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if (is_it_end_of_statement ())
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{
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demand_empty_rest_of_line ();
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return;
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}
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#ifdef md_cons_align
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md_cons_align (nbytes);
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#endif
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do
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{
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bfd_reloc_code_real_type reloc_type = BFD_RELOC_BFIN_FUNCDESC;
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if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0)
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{
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input_line_pointer += 9;
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expression (&exp);
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if (*input_line_pointer == ')')
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input_line_pointer++;
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else
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as_bad ("missing ')'");
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}
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else
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error ("missing funcdesc in picptr");
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p = frag_more (4);
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memset (p, 0, 4);
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fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0,
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reloc_type);
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}
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while (*input_line_pointer++ == ',');
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input_line_pointer--; /* Put terminator back into stream. */
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demand_empty_rest_of_line ();
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}
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static void
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bfin_s_bss (int ignore ATTRIBUTE_UNUSED)
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@ -228,6 +273,21 @@ bfin_s_bss (int ignore ATTRIBUTE_UNUSED)
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demand_empty_rest_of_line ();
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}
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const pseudo_typeS md_pseudo_table[] = {
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{"align", s_align_bytes, 0},
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{"byte2", cons, 2},
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{"byte4", cons, 4},
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{"picptr", bfin_pic_ptr, 4},
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{"code", obj_elf_section, 0},
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{"db", cons, 1},
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{"dd", cons, 4},
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{"dw", cons, 2},
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{"p", s_ignore, 0},
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{"pdata", s_ignore, 0},
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{"var", s_ignore, 0},
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{"bss", bfin_s_bss, 0},
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{0, 0, 0}
|
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};
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/* Characters that are used to denote comments and line separators. */
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const char comment_chars[] = "";
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@ -245,16 +305,32 @@ const char FLT_CHARS[] = "fFdDxX";
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/* Define bfin-specific command-line options (there are none). */
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const char *md_shortopts = "";
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struct option md_longopts[] = {
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{NULL, no_argument, NULL, 0}
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#define OPTION_FDPIC (OPTION_MD_BASE)
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|
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struct option md_longopts[] =
|
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{
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{ "mfdpic", no_argument, NULL, OPTION_FDPIC },
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{ NULL, no_argument, NULL, 0 },
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};
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|
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size_t md_longopts_size = sizeof (md_longopts);
|
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|
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|
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int
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md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED)
|
||||
{
|
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return 0;
|
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switch (c)
|
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{
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default:
|
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return 0;
|
||||
|
||||
case OPTION_FDPIC:
|
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bfin_flags |= EF_BFIN_FDPIC;
|
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bfin_pic_flag = "-mfdpic";
|
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break;
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}
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||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
void
|
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@ -267,6 +343,10 @@ md_show_usage (FILE * stream ATTRIBUTE_UNUSED)
|
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void
|
||||
md_begin ()
|
||||
{
|
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/* Set the ELF flags if desired. */
|
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if (bfin_flags)
|
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bfd_set_private_flags (stdoutput, bfin_flags);
|
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|
||||
/* Set the default machine type. */
|
||||
if (!bfd_set_arch_mach (stdoutput, bfd_arch_bfin, 0))
|
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as_warn ("Could not set architecture and machine.");
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@ -476,6 +556,8 @@ md_apply_fix (fixS *fixP, valueT *valueP, segT seg ATTRIBUTE_UNUSED)
|
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switch (fixP->fx_r_type)
|
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{
|
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case BFD_RELOC_BFIN_GOT:
|
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case BFD_RELOC_BFIN_GOT17M4:
|
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case BFD_RELOC_BFIN_FUNCDESC_GOT17M4:
|
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fixP->fx_no_overflow = 1;
|
||||
newval = md_chars_to_number (where, 2);
|
||||
newval |= 0x0 & 0x7f;
|
||||
@ -579,6 +661,7 @@ md_apply_fix (fixS *fixP, valueT *valueP, segT seg ATTRIBUTE_UNUSED)
|
||||
md_number_to_chars (where, value, 2);
|
||||
break;
|
||||
|
||||
case BFD_RELOC_BFIN_FUNCDESC:
|
||||
case BFD_RELOC_VTABLE_INHERIT:
|
||||
case BFD_RELOC_VTABLE_ENTRY:
|
||||
fixP->fx_done = FALSE;
|
||||
@ -725,8 +808,10 @@ bfin_fix_adjustable (fixS *fixP)
|
||||
switch (fixP->fx_r_type)
|
||||
{
|
||||
/* Adjust_reloc_syms doesn't know about the GOT. */
|
||||
case BFD_RELOC_BFIN_GOT :
|
||||
case BFD_RELOC_BFIN_PLTPC :
|
||||
case BFD_RELOC_BFIN_GOT:
|
||||
case BFD_RELOC_BFIN_GOT17M4:
|
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case BFD_RELOC_BFIN_FUNCDESC_GOT17M4:
|
||||
case BFD_RELOC_BFIN_PLTPC:
|
||||
/* We need the symbol name for the VTABLE entries. */
|
||||
case BFD_RELOC_VTABLE_INHERIT:
|
||||
case BFD_RELOC_VTABLE_ENTRY:
|
||||
@ -982,6 +1067,8 @@ Expr_Node_Gen_Reloc (Expr_Node * head, int parent_reloc)
|
||||
break;
|
||||
case BFD_RELOC_16:
|
||||
case BFD_RELOC_BFIN_GOT:
|
||||
case BFD_RELOC_BFIN_GOT17M4:
|
||||
case BFD_RELOC_BFIN_FUNCDESC_GOT17M4:
|
||||
note1 = conscode (gencode (value), NULL_CODE);
|
||||
pcrel = 0;
|
||||
break;
|
||||
@ -1356,8 +1443,6 @@ bfin_gen_ldimmhalf (REG_T reg, int H, int S, int Z, Expr_Node * phword, int relo
|
||||
INSTR_T
|
||||
bfin_gen_ldstidxi (REG_T ptr, REG_T reg, int W, int sz, int Z, Expr_Node * poffset)
|
||||
{
|
||||
int offset;
|
||||
int value = 0;
|
||||
INIT (LDSTidxI);
|
||||
|
||||
if (!IS_PREG (*ptr) || (!IS_DREG (*reg) && !Z))
|
||||
@ -1370,44 +1455,51 @@ bfin_gen_ldstidxi (REG_T ptr, REG_T reg, int W, int sz, int Z, Expr_Node * poffs
|
||||
ASSIGN_R (reg);
|
||||
ASSIGN (W);
|
||||
ASSIGN (sz);
|
||||
switch (sz)
|
||||
{
|
||||
case 0:
|
||||
value = EXPR_VALUE (poffset) >> 2;
|
||||
break;
|
||||
case 1:
|
||||
value = EXPR_VALUE (poffset) >> 1;
|
||||
break;
|
||||
case 2:
|
||||
value = EXPR_VALUE (poffset);
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
ASSIGN (Z);
|
||||
|
||||
offset = (value & 0xffff);
|
||||
ASSIGN (offset);
|
||||
/* TODO : test if you need to check this here.
|
||||
The reloc case should automatically generate instruction
|
||||
if constant. */
|
||||
if(poffset->type != Expr_Node_Constant){
|
||||
/* A GOT relocation such as R0 = [P5 + symbol@GOT].
|
||||
Distinguish between R0 = [P5 + symbol@GOT] and
|
||||
P5 = [P5 + _current_shared_library_p5_offset_]. */
|
||||
if(!strcmp(poffset->value.s_value, "_current_shared_library_p5_offset_")){
|
||||
return conscode (gencode (HI (c_code.opcode)),
|
||||
Expr_Node_Gen_Reloc(poffset, BFD_RELOC_16));
|
||||
}
|
||||
else
|
||||
if (poffset->type != Expr_Node_Constant)
|
||||
{
|
||||
return conscode (gencode (HI (c_code.opcode)),
|
||||
Expr_Node_Gen_Reloc(poffset, BFD_RELOC_BFIN_GOT));
|
||||
/* a GOT relocation such as R0 = [P5 + symbol@GOT] */
|
||||
/* distinguish between R0 = [P5 + symbol@GOT] and
|
||||
P5 = [P5 + _current_shared_library_p5_offset_]
|
||||
*/
|
||||
if (poffset->type == Expr_Node_Reloc
|
||||
&& !strcmp (poffset->value.s_value,
|
||||
"_current_shared_library_p5_offset_"))
|
||||
{
|
||||
return conscode (gencode (HI (c_code.opcode)),
|
||||
Expr_Node_Gen_Reloc(poffset, BFD_RELOC_16));
|
||||
}
|
||||
else if (poffset->type != Expr_Node_GOT_Reloc)
|
||||
abort ();
|
||||
|
||||
return conscode (gencode (HI (c_code.opcode)),
|
||||
Expr_Node_Gen_Reloc(poffset->Left_Child,
|
||||
poffset->value.i_value));
|
||||
}
|
||||
else
|
||||
{
|
||||
int value, offset;
|
||||
switch (sz)
|
||||
{ // load/store access size
|
||||
case 0: // 32 bit
|
||||
value = EXPR_VALUE (poffset) >> 2;
|
||||
break;
|
||||
case 1: // 16 bit
|
||||
value = EXPR_VALUE (poffset) >> 1;
|
||||
break;
|
||||
case 2: // 8 bit
|
||||
value = EXPR_VALUE (poffset);
|
||||
break;
|
||||
default:
|
||||
abort ();
|
||||
}
|
||||
|
||||
offset = (value & 0xffff);
|
||||
ASSIGN (offset);
|
||||
return GEN_OPCODE32 ();
|
||||
}
|
||||
}
|
||||
else{
|
||||
return GEN_OPCODE32 ();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user