/* tc-ppc.h -- Header file for tc-ppc.c.
- Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of GAS, the GNU Assembler.
#endif
#ifdef OBJ_ELF
-#define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */
+#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
#endif
#if TARGET_BYTES_BIG_ENDIAN
struct ppc_tc_sy
{
/* We keep a few linked lists of symbols. */
- struct symbol *next;
+ symbolS *next;
/* Non-zero if the symbol should be output. The RS/6000 assembler
only outputs symbols that are external or are mentioned in a
.globl or .lglobl statement. */
int align;
/* For a function symbol, a symbol whose value is the size. The
field is NULL if there is no size. */
- struct symbol *size;
+ symbolS *size;
/* 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. */
- struct symbol *within;
+ symbolS *within;
};
#define TC_SYMFIELD_TYPE struct ppc_tc_sy
/* Get the symbol class from the name. */
#define tc_symbol_new_hook(sym) ppc_symbol_new_hook (sym)
-extern void ppc_symbol_new_hook PARAMS ((struct symbol *));
+extern void ppc_symbol_new_hook PARAMS ((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 PARAMS ((struct symbol *));
+extern void ppc_frob_label PARAMS ((symbolS *));
/* TOC relocs requires special handling. */
#define tc_fix_adjustable(fixp) ppc_fix_adjustable (fixp)
/* Finish up the symbol. */
#define tc_frob_symbol(sym, punt) punt = ppc_frob_symbol (sym)
-extern int ppc_frob_symbol PARAMS ((struct symbol *));
+extern int ppc_frob_symbol PARAMS ((symbolS *));
/* Finish up the entire symtab. */
#define tc_adjust_symtab() ppc_adjust_symtab ()
#endif /* OBJ_XCOFF */
#ifdef OBJ_ELF
-/* The name of the global offset table generated by the compiler. Allow
- this to be overridden if need be. */
-#ifndef GLOBAL_OFFSET_TABLE_NAME
-#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
-#endif
-/* Branch prediction relocations must force relocation */
-#define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) \
+/* Branch prediction relocations must force relocation, as must
+ the vtable description relocs. */
+#define TC_FORCE_RELOCATION(FIXP) \
((FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRTAKEN \
|| (FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRNTAKEN \
|| (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRTAKEN \
|| (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRNTAKEN \
- || ((FIXP)->fx_addsy && !(FIXP)->fx_subsy && (FIXP)->fx_addsy->bsym \
- && (FIXP)->fx_addsy->bsym->section != SEC))
+ || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_INHERIT \
+ || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+
+#define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) \
+(TC_FORCE_RELOCATION (FIXP) \
+ || ((FIXP)->fx_addsy && !(FIXP)->fx_subsy \
+ && S_GET_SEGMENT ((FIXP)->fx_addsy) != SEC))
/* Support for SHF_EXCLUDE and SHT_ORDERED */
extern int ppc_section_letter PARAMS ((int, char **));
-extern int ppc_section_type PARAMS ((char **));
-extern int ppc_section_word PARAMS ((char **));
+extern int ppc_section_type PARAMS ((char *, size_t));
+extern int ppc_section_word PARAMS ((char *, size_t));
extern int ppc_section_flags PARAMS ((int, int, int));
#define md_elf_section_letter(LETTER, PTR_MSG) ppc_section_letter (LETTER, PTR_MSG)
-#define md_elf_section_type(PTR_STR) ppc_section_type (PTR_STR)
-#define md_elf_section_word(PTR_STR) ppc_section_word (PTR_STR)
+#define md_elf_section_type(STR, LEN) ppc_section_type (STR, LEN)
+#define md_elf_section_word(STR, LEN) ppc_section_word (STR, LEN)
#define md_elf_section_flags(FLAGS, ATTR, TYPE) ppc_section_flags (FLAGS, ATTR, TYPE)
/* Add extra PPC sections -- Note, for now, make .sbss2 and .PPC.EMB.sbss0 a
#define tc_comment_chars ppc_comment_chars
extern const char *ppc_comment_chars;
-/* Keep relocations relative to the GOT. */
-#define tc_fix_adjustable(FIX) \
- ((FIX)->fx_r_type != BFD_RELOC_16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_LO16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_HI16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_HI16_S_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_GPREL16)
+/* Keep relocations relative to the GOT, or non-PC relative. */
+#define tc_fix_adjustable(FIX) \
+ ((FIX)->fx_r_type != BFD_RELOC_16_GOTOFF \
+ && (FIX)->fx_r_type != BFD_RELOC_LO16_GOTOFF \
+ && (FIX)->fx_r_type != BFD_RELOC_HI16_GOTOFF \
+ && (FIX)->fx_r_type != BFD_RELOC_HI16_S_GOTOFF \
+ && (FIX)->fx_r_type != BFD_RELOC_GPREL16 \
+ && (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
+ && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
+ && ! S_IS_EXTERNAL ((FIX)->fx_addsy) \
+ && ! S_IS_WEAK ((FIX)->fx_addsy) \
+ && ((FIX)->fx_pcrel \
+ || ((FIX)->fx_subsy != NULL \
+ && (S_GET_SEGMENT ((FIX)->fx_subsy) \
+ == S_GET_SEGMENT ((FIX)->fx_addsy))) \
+ || strchr (S_GET_NAME ((FIX)->fx_addsy), '\001') != NULL \
+ || strchr (S_GET_NAME ((FIX)->fx_addsy), '\002') != NULL))
+
+/* We must never ever try to resolve references to externally visible
+ symbols in the assembler, because the .o file might go into a shared
+ library, and some other shared library might override that symbol. */
+#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
+ ((FIX)->fx_addsy == NULL \
+ || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
+ && ! S_IS_WEAK ((FIX)->fx_addsy) \
+ && S_IS_DEFINED ((FIX)->fx_addsy) \
+ && ! S_IS_COMMON ((FIX)->fx_addsy)))
+
#endif /* OBJ_ELF */
/* call md_apply_fix3 with segment instead of md_apply_fix */
projects / deliverable / binutils-gdb.git / blobdiff