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@ -23,13 +23,9 @@ |
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#ifndef _INTERNAL_XCOFF_H |
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#define _INTERNAL_XCOFF_H |
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/*
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* LINKER |
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*/ |
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/* Linker */ |
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/*
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* names of "special" sections |
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*/ |
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/* Names of "special" sections. */ |
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#define _TEXT ".text" |
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#define _DATA ".data" |
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#define _BSS ".bss" |
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@ -50,7 +46,6 @@ |
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#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */ |
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#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */ |
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/* XCOFF relocation types.
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The relocations are described in the function |
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xcoff[64]_ppc_relocate_section in coff64-rs6000.c and coff-rs6000.c */ |
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@ -78,22 +73,15 @@ |
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#define R_RBR (0x1a) |
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#define R_RBRC (0x1b) |
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/* Storage class #defines, from /usr/include/storclass.h that are not already
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defined in internal.h */ |
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/*
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* Storage class #defines, from /usr/include/storclass.h |
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* That are not already defined in internal.h |
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*/ |
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#define C_INFO 110 /* Comment string in .info section */ |
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/* Comment string in .info section */ |
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#define C_INFO 110 |
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/*
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* AUXILLARY SYMBOL ENTRIES |
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* |
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* auxemt |
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*/ |
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/* Auxillary Symbol Entries */ |
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/* x_smtyp values: */ |
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#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ |
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#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ |
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/* Symbol type values: */ |
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@ -105,7 +93,6 @@ |
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#define XTY_US 5 /* "Reserved for internal use" */ |
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/* x_smclas values: */ |
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#define XMC_PR 0 /* Read-only program code */ |
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#define XMC_RO 1 /* Read-only constant */ |
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#define XMC_DB 2 /* Read-only debug dictionary table */ |
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@ -131,30 +118,37 @@ |
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struct internal_ldhdr |
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{ |
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/*
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* The version number: |
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* 1 : 32 bit |
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* 2 : 64 bit |
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*/ |
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/* The version number:
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1 : 32 bit |
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2 : 64 bit */ |
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unsigned long l_version; |
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/* The number of symbol table entries. */ |
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bfd_size_type l_nsyms; |
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/* The number of relocation table entries. */ |
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bfd_size_type l_nreloc; |
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/* The length of the import file string table. */ |
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bfd_size_type l_istlen; |
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/* The number of import files. */ |
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bfd_size_type l_nimpid; |
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/* The offset from the start of the .loader section to the first
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entry in the import file table. */ |
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bfd_size_type l_impoff; |
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/* The length of the string table. */ |
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bfd_size_type l_stlen; |
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/* The offset from the start of the .loader section to the first
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entry in the string table. */ |
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bfd_size_type l_stoff; |
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/* The offset to start of the symbol table, only in XCOFF64 */ |
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bfd_vma l_symoff; |
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/* The offset to the start of the relocation table, only in XCOFF64 */ |
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bfd_vma l_rldoff; |
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}; |
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@ -165,28 +159,37 @@ struct internal_ldhdr |
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struct internal_ldsym |
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{ |
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union |
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{ |
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/* The symbol name if <= SYMNMLEN characters. */ |
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char _l_name[SYMNMLEN]; |
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struct |
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{ |
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/* The symbol name if <= SYMNMLEN characters. */ |
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char _l_name[SYMNMLEN]; |
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struct |
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{ |
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/* Zero if the symbol name is more than SYMNMLEN characters. */ |
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long _l_zeroes; |
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/* The offset in the string table if the symbol name is more
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than SYMNMLEN characters. */ |
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long _l_offset; |
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} _l_l; |
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} _l; |
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/* Zero if the symbol name is more than SYMNMLEN characters. */ |
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long _l_zeroes; |
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/* The offset in the string table if the symbol name is more
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than SYMNMLEN characters. */ |
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long _l_offset; |
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} |
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_l_l; |
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} |
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_l; |
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/* The symbol value. */ |
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bfd_vma l_value; |
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/* The symbol section number. */ |
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short l_scnum; |
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/* The symbol type and flags. */ |
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char l_smtype; |
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/* The symbol storage class. */ |
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char l_smclas; |
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/* The import file ID. */ |
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bfd_size_type l_ifile; |
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/* Offset to the parameter type check string. */ |
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bfd_size_type l_parm; |
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}; |
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@ -208,10 +211,13 @@ struct internal_ldrel |
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{ |
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/* The reloc address. */ |
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bfd_vma l_vaddr; |
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/* The symbol table index in the .loader section symbol table. */ |
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bfd_size_type l_symndx; |
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/* The relocation type and size. */ |
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short l_rtype; |
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/* The section number this relocation applies to. */ |
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short l_rsecnm; |
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}; |
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@ -230,14 +236,16 @@ struct xcoff_link_hash_entry |
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asection *toc_section; |
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union |
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{ |
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/* If we have created a TOC entry (the XCOFF_SET_TOC flag is
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set), this is the offset in toc_section. */ |
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bfd_vma toc_offset; |
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/* If the TOC entry comes from an input file, this is set to the
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symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ |
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long toc_indx; |
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} u; |
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{ |
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/* If we have created a TOC entry (the XCOFF_SET_TOC flag is
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set), this is the offset in toc_section. */ |
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bfd_vma toc_offset; |
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/* If the TOC entry comes from an input file, this is set to the
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symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ |
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long toc_indx; |
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} |
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u; |
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/* If this symbol is a function entry point which is called, this
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field holds a pointer to the function descriptor. If this symbol |
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@ -260,77 +268,41 @@ struct xcoff_link_hash_entry |
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unsigned char smclas; |
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}; |
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/*
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* #define for xcoff_link_hash_entry.flags |
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* |
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* XCOFF_REF_REGULAR |
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* Symbol is referenced by a regular object. |
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* |
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* XCOFF_DEF_REGULAR |
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* Symbol is defined by a regular object. |
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* |
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* XCOFF_DEF_DYNAMIC |
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* Symbol is defined by a dynamic object. |
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* |
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* XCOFF_LDREL |
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* Symbol is used in a reloc being copied into the .loader section. |
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* |
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* XCOFF_ENTRY |
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* Symbol is the entry point. |
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* |
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* XCOFF_CALLED |
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* Symbol is called; this is, it appears in a R_BR reloc. |
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* |
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* XCOFF_SET_TOC |
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* Symbol needs the TOC entry filled in. |
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* |
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* XCOFF_IMPORT |
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* Symbol is explicitly imported. |
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* |
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* XCOFF_EXPORT |
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* Symbol is explicitly exported. |
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* |
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* XCOFF_BUILT_LDSYM |
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* Symbol has been processed by xcoff_build_ldsyms. |
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* |
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* XCOFF_MARK |
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* Symbol is mentioned by a section which was not garbage collected. |
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* |
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* XCOFF_HAS_SIZE |
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* Symbol size is recorded in size_list list from hash table. |
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* |
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* XCOFF_DESCRIPTOR |
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* Symbol is a function descriptor. |
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* |
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* XCOFF_MULTIPLY_DEFINED |
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* Multiple definitions have been for the symbol. |
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* |
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* XCOFF_RTINIT |
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* Symbol is the __rtinit symbol |
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* |
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* XCOFF_SYSCALL32 |
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* Symbol is an imported 32 bit syscall |
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* |
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* XCOFF_SYSCALL64 |
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* Symbol is an imported 64 bit syscall |
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*/ |
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/* Flags for xcoff_link_hash_entry. */ |
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/* Symbol is referenced by a regular object. */ |
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#define XCOFF_REF_REGULAR 0x00000001 |
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/* Symbol is defined by a regular object. */ |
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#define XCOFF_DEF_REGULAR 0x00000002 |
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/* Symbol is defined by a dynamic object. */ |
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#define XCOFF_DEF_DYNAMIC 0x00000004 |
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/* Symbol is used in a reloc being copied into the .loader section. */ |
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#define XCOFF_LDREL 0x00000008 |
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/* Symbol is the entry point. */ |
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#define XCOFF_ENTRY 0x00000010 |
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/* Symbol is called; this is, it appears in a R_BR reloc. */ |
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#define XCOFF_CALLED 0x00000020 |
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/* Symbol needs the TOC entry filled in. */ |
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#define XCOFF_SET_TOC 0x00000040 |
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/* Symbol is explicitly imported. */ |
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#define XCOFF_IMPORT 0x00000080 |
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/* Symbol is explicitly exported. */ |
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#define XCOFF_EXPORT 0x00000100 |
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/* Symbol has been processed by xcoff_build_ldsyms. */ |
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#define XCOFF_BUILT_LDSYM 0x00000200 |
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/* Symbol is mentioned by a section which was not garbage collected. */ |
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#define XCOFF_MARK 0x00000400 |
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/* Symbol size is recorded in size_list list from hash table. */ |
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#define XCOFF_HAS_SIZE 0x00000800 |
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/* Symbol is a function descriptor. */ |
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#define XCOFF_DESCRIPTOR 0x00001000 |
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/* Multiple definitions have been for the symbol. */ |
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#define XCOFF_MULTIPLY_DEFINED 0x00002000 |
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/* Symbol is the __rtinit symbol. */ |
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#define XCOFF_RTINIT 0x00004000 |
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/* Symbol is an imported 32 bit syscall. */ |
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#define XCOFF_SYSCALL32 0x00008000 |
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/* Symbol is an imported 64 bit syscall. */ |
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#define XCOFF_SYSCALL64 0x00010000 |
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/* The XCOFF linker hash table. */ |
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@ -390,11 +362,12 @@ struct xcoff_link_hash_table |
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/* A linked list of symbols for which we have size information. */ |
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struct xcoff_link_size_list |
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{ |
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struct xcoff_link_size_list *next; |
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struct xcoff_link_hash_entry *h; |
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bfd_size_type size; |
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} *size_list; |
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{ |
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struct xcoff_link_size_list *next; |
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struct xcoff_link_hash_entry *h; |
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bfd_size_type size; |
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} |
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*size_list; |
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/* Magic sections: _text, _etext, _data, _edata, _end, end. */ |
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asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; |
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@ -408,18 +381,25 @@ struct xcoff_loader_info |
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{ |
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/* Set if a problem occurred. */ |
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boolean failed; |
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/* Output BFD. */ |
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bfd *output_bfd; |
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/* Link information structure. */ |
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struct bfd_link_info *info; |
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/* Whether all defined symbols should be exported. */ |
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boolean export_defineds; |
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/* Number of ldsym structures. */ |
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size_t ldsym_count; |
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/* Size of string table. */ |
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size_t string_size; |
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/* String table. */ |
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bfd_byte *strings; |
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/* Allocated size of string table. */ |
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size_t string_alc; |
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}; |
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@ -428,37 +408,41 @@ struct xcoff_loader_info |
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from smaller values. Start with zero, widen, *then* decrement. */ |
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#define MINUS_ONE (((bfd_vma) 0) - 1) |
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/* __rtinit, from /usr/include/rtinit.h. */ |
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struct __rtinit |
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{ |
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/* Pointer to runtime linker.
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XXX: Is the parameter really void? */ |
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int (*rtl) PARAMS ((void)); |
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/* Offset to array of init functions, 0 if none. */ |
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int init_offset; |
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/*
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* __rtinit |
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* from /usr/include/rtinit.h |
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*/ |
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struct __rtinit { |
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int (*rtl) PARAMS ((void)); /* Pointer to runtime linker.
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XXX: Is the parameter really void? */ |
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int init_offset; /* Offset to array of init functions
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(0 if none). */ |
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int fini_offset; /* Offset to array of fini functions
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(0 if none). */ |
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int __rtinit_descriptor_size; /* Size of __RTINIT_DESCRIPTOR.
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This value should be used instead |
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of sizeof(__RTINIT_DESCRIPTOR). */ |
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/* Offset to array of fini functions, 0 if none. */ |
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int fini_offset; |
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/* Size of __RTINIT_DESCRIPTOR. This value should be used instead of
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sizeof(__RTINIT_DESCRIPTOR). */ |
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int __rtinit_descriptor_size; |
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}; |
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#define RTINIT_DESCRIPTOR_SIZE (12) |
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struct __rtinit_descriptor { |
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int f; /* Init/fini function. */ |
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int name_offset; /* Offset (within __rtinit symbol)
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to name of function. */ |
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unsigned char flags; /* Flags */ |
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}; |
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struct __rtinit_descriptor |
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{ |
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/* Init/fini function. */ |
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int f; |
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/* Offset, relative to the start of the __rtinit symbol, to name of the
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function. */ |
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int name_offset; |
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/* Flags */ |
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unsigned char flags; |
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}; |
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/*
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* ARCHIVE |
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*/ |
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/* Archive */ |
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#define XCOFFARMAG "<aiaff>\012" |
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#define XCOFFARMAGBIG "<bigaf>\012" |
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