/* tc-ppc.h -- Header file for tc-ppc.c.
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 1994-2024 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of GAS, the GNU Assembler.
#define TARGET_BYTES_BIG_ENDIAN 1
#endif
-/* If OBJ_COFF is defined, and TE_PE is not defined, we are assembling
- XCOFF for AIX or PowerMac. If TE_PE is defined, we are assembling
- COFF for Windows NT. */
-
+/* If OBJ_COFF is defined we are assembling XCOFF for AIX or PowerMac. */
#ifdef OBJ_COFF
-#ifndef TE_PE
#define OBJ_XCOFF
#endif
-#endif
/* The target BFD architecture. */
#define TARGET_ARCH (ppc_arch ())
/* The target BFD format. */
#define TARGET_FORMAT (ppc_target_format ())
-extern char *ppc_target_format (void);
+extern const char *ppc_target_format (void);
/* Permit temporary numeric labels. */
#define LOCAL_LABELS_FB 1
/* Strings do not use backslash escapes under COFF. */
#ifdef OBJ_COFF
-#define NO_STRING_ESCAPES
+#define TC_STRING_ESCAPES 0
#endif
#ifdef OBJ_ELF
if ((FRAGP)->fr_type == rs_align_code) \
ppc_handle_align (FRAGP);
+extern unsigned int ppc_nop_select (void);
+#define NOP_OPCODE ppc_nop_select ()
+
extern void ppc_handle_align (struct frag *);
extern void ppc_frag_check (struct frag *);
+#ifdef OBJ_ELF
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
+#endif
#define md_frag_check(FRAGP) ppc_frag_check (FRAGP)
#define TC_INIT_FIX_DATA(FIXP) \
do { (FIXP)->tc_fix_data.ppc_cpu = ppc_cpu; } while (0)
\f
-#ifdef TE_PE
-
-/* Question marks are permitted in symbol names. */
-#define LEX_QM 1
-
-/* Don't adjust TOC relocs. */
-#define tc_fix_adjustable(FIX) ppc_pe_fix_adjustable (FIX)
-extern int ppc_pe_fix_adjustable (struct fix *);
-
-#endif
-
#ifdef OBJ_XCOFF
/* Declarations needed when generating XCOFF code. XCOFF is an
/* For a csect symbol, the last symbol which has been defined in
this csect, or NULL if none have been defined so far.
For a .bs symbol, the referenced csect symbol.
+ For a C_STSYM symbol, the containing block (.bs symbol).
For a label, the enclosing csect. */
symbolS *within;
union
#define TC_SYMFIELD_TYPE struct ppc_tc_sy
/* We need an additional auxent for function symbols. */
-#define OBJ_COFF_MAX_AUXENTRIES 2
+#define OBJ_COFF_MAX_AUXENTRIES 4
/* Square and curly brackets are permitted in symbol names. */
#define LEX_BR 3
#define tc_symbol_new_hook(sym) ppc_symbol_new_hook (sym)
extern void ppc_symbol_new_hook (symbolS *);
-/* Set the symbol class of a label based on the csect. */
-#define tc_frob_label(sym) ppc_frob_label (sym)
-extern void ppc_frob_label (symbolS *);
-
/* TOC relocs requires special handling. */
#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
extern int ppc_fix_adjustable (struct fix *);
symbol_get_tc (dest)->within = symbol_get_tc (src)->within; \
} while (0)
-extern void ppc_xcoff_end (void);
-#define md_end ppc_xcoff_end
+extern void ppc_xcoff_md_finish (void);
+#define md_finish ppc_xcoff_md_finish
-#define tc_new_dot_label(sym) ppc_new_dot_label (sym)
-extern void ppc_new_dot_label (symbolS *);
+#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
+ ppc_xcoff_parse_cons (EXP, NBYTES)
+extern bfd_reloc_code_real_type ppc_xcoff_parse_cons (expressionS *,
+ unsigned int);
+/* XCOFF format allows only few predefined sections. Gather all
+ information in a common structure. */
+struct ppc_xcoff_section {
+ /* Main segment of the section. */
+ segT segment;
+
+ /* Next subsegment to allocate within the segment. */
+ subsegT next_subsegment;
+
+ /* Linked list of csects in the section. */
+ symbolS *csects;
+};
#endif /* OBJ_XCOFF */
+#define tc_new_dot_label(sym) ppc_new_dot_label (sym)
+extern void ppc_new_dot_label (symbolS *);
+
extern const char ppc_symbol_chars[];
#define tc_symbol_chars ppc_symbol_chars
#define tc_comment_chars ppc_comment_chars
extern const char *ppc_comment_chars;
+#define md_elf_section_letter ppc_elf_section_letter
+extern bfd_vma ppc_elf_section_letter (int, const char **);
+
/* Keep relocations relative to the GOT, or non-PC relative. */
#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
extern int ppc_fix_adjustable (struct fix *);
/* Values passed to md_apply_fix don't include symbol values. */
#define MD_APPLY_SYM_VALUE(FIX) 0
+#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
+ ppc_elf_parse_cons (EXP, NBYTES)
+extern bfd_reloc_code_real_type ppc_elf_parse_cons (expressionS *,
+ unsigned int);
+#define TC_CONS_FIX_CHECK(EXP, NBYTES, FIX) \
+ ppc_elf_cons_fix_check (EXP, NBYTES, FIX)
+extern void ppc_elf_cons_fix_check (expressionS *, unsigned int, struct fix *);
+
#define tc_frob_file_before_adjust ppc_frob_file_before_adjust
extern void ppc_frob_file_before_adjust (void);
+#define tc_adjust_symtab() ppc_elf_adjust_symtab ()
+extern void ppc_elf_adjust_symtab (void);
+
+extern void ppc_elf_md_finish (void);
+#define md_finish ppc_elf_md_finish
+
#endif /* OBJ_ELF */
+extern void ppc_md_end (void);
+#define md_end ppc_md_end
+
#if defined (OBJ_ELF) || defined (OBJ_XCOFF)
#define TC_FORCE_RELOCATION(FIX) ppc_force_relocation (FIX)
extern int ppc_force_relocation (struct fix *);
#endif
+#ifdef OBJ_ELF
+/* Don't allow the generic code to convert fixups involving the
+ subtraction of a label in the current section to pc-relative if we
+ don't have the necessary pc-relative relocation. */
+#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
+ (!((FIX)->fx_r_type == BFD_RELOC_64 \
+ || (FIX)->fx_r_type == BFD_RELOC_32 \
+ || (FIX)->fx_r_type == BFD_RELOC_16 \
+ || (FIX)->fx_r_type == BFD_RELOC_LO16 \
+ || (FIX)->fx_r_type == BFD_RELOC_HI16 \
+ || (FIX)->fx_r_type == BFD_RELOC_HI16_S \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGH \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHA \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHER \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHER_S \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHEST \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHEST_S \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHER34 \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHERA34 \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHEST34 \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHESTA34 \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC_16DX_HA \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_D34 \
+ || (FIX)->fx_r_type == BFD_RELOC_PPC64_D28))
+
+#endif /* OBJ_ELF */
+
+#define RELOC_EXPANSION_POSSIBLE
+#define MAX_RELOC_EXPANSION 2
+
+#if defined (OBJ_XCOFF)
+/* Force a relocation when the fix is negative. */
+#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
+ (GENERIC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
+ || (((SEG)->flags & SEC_DEBUGGING) == 0 \
+ && (FIX)->fx_addsy && (FIX)->fx_subsy \
+ && (S_GET_VALUE (fixP->fx_addsy) < S_GET_VALUE (fixP->fx_subsy))))
+
+/* XCOFF allows undefined differences which will be encoded with
+ R_NEG relocations. */
+#define UNDEFINED_DIFFERENCE_OK
+
+#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
+ (md_register_arithmetic || (SEG) != reg_section)
+
+#endif /* OBJ_XCOFF */
+
+/* Various frobbings of labels and their addresses. */
+#define md_start_line_hook() ppc_start_line_hook ()
+extern void ppc_start_line_hook (void);
+
+/* Set the symbol class of a label based on the csect. */
+#define tc_frob_label(sym) ppc_frob_label (sym)
+extern void ppc_frob_label (symbolS *);
+
/* call md_pcrel_from_section, not md_pcrel_from */
#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
-#define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp)
-extern int ppc_parse_name (const char *, struct expressionS *);
+#define md_parse_name(name, exp, mode, c) \
+ (ppc_parse_name (name, exp, mode), true)
+extern void ppc_parse_name (const char *, struct expressionS *, enum expr_mode);
-#define md_operand(x)
+#define md_optimize_expr(left, op, right) ppc_optimize_expr (left, op, right)
+extern int ppc_optimize_expr (expressionS *, operatorT, expressionS *);
#define md_cleanup() ppc_cleanup ()
extern void ppc_cleanup (void);
+#if (defined TE_AIX5 || defined TE_AIX \
+ || defined TE_FreeBSD || defined TE_NetBSD || defined TE_LYNX)
/* ppc uses different register numbers between .eh_frame and .debug_frame.
This macro translates the .eh_frame register numbers to .debug_frame
register numbers. */
-#define md_reg_eh_frame_to_debug_frame(regno) \
- ((regno) == 70 ? 64 /* cr2 */ : (regno))
+#define md_reg_eh_frame_to_debug_frame(regno) \
+ ((regno) == 70 ? 64 /* cr2 */ \
+ : (regno) == 65 ? 108 /* lr */ \
+ : (regno) == 66 ? 109 /* ctr */ \
+ : (regno) >= 68 && (regno) <= 75 ? (regno) + 86 - 68 /* crN */ \
+ : (regno) == 76 ? 101 /* xer */ \
+ : (regno) >= 77 && (regno) <= 108 ? (regno) + 1124 - 77 /* vrN */ \
+ : (regno) == 109 ? 356 /* vrsave */ \
+ : (regno) == 110 ? 67 /* vscr */ \
+ : (regno) == 111 ? 99 /* spe_acc */ \
+ : (regno) == 112 ? 612 /* spefscr */ \
+ : (regno))
+#endif
#define TARGET_USE_CFIPOP 1
extern int ppc_cie_data_alignment;
-#define DWARF2_LINE_MIN_INSN_LENGTH 4
+extern int ppc_dwarf2_line_min_insn_length;
+
+#define DWARF2_LINE_MIN_INSN_LENGTH ppc_dwarf2_line_min_insn_length
#define DWARF2_DEFAULT_RETURN_COLUMN 0x41
#define DWARF2_CIE_DATA_ALIGNMENT ppc_cie_data_alignment
+#define EH_FRAME_ALIGNMENT 2
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