X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Fsom.h;h=537ddaad1f020744f078793204362c0f25c9b200;hb=82c10df67c913fa42750768634b7e7a618d55be6;hp=977e0557f9e99730773539ecaef1457bbbe14fc4;hpb=4e64845ca5e5c23afd925cd780aa08884714cda9;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/som.h b/bfd/som.h index 977e0557f9..537ddaad1f 100644 --- a/bfd/som.h +++ b/bfd/som.h @@ -1,5 +1,6 @@ /* HP PA-RISC SOM object file format: definitions internal to BFD. - Copyright (C) 1990-1991 Free Software Foundation, Inc. + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, + 2002, 2003 Free Software Foundation, Inc. Contributed by the Center for Software Science at the University of Utah (pa-gdb-bugs@cs.utah.edu). @@ -18,20 +19,29 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ #ifndef _SOM_H #define _SOM_H -#include "../bfd/sysdep.h" #include "libhppa.h" +/* Enable PA2.0 if available */ +#define PA_2_0 + #include #include #include +/* The SOM BFD backend doesn't currently use anything from these + two include files, but it's likely to need them in the future. */ +#ifdef R_DLT_REL +#include +#include +#endif -#ifdef HOST_HPPABSD +#if defined(HOST_HPPABSD) || defined (HOST_HPPAOSF) /* BSD uses a completely different scheme for object file identification. so for now, define _PA_RISC_ID to accept any random value for a model number. */ @@ -39,22 +49,23 @@ #define _PA_RISC_ID(__m_num) 1 #endif /* HOST_HPPABSD */ -#define FILE_HDR_SIZE sizeof(struct header) -#define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr) +#define FILE_HDR_SIZE sizeof (struct header) +#define AUX_HDR_SIZE sizeof (struct som_exec_auxhdr) typedef struct som_symbol { asymbol symbol; - short desc; - char other; - unsigned char type; unsigned int som_type; /* Structured like the ELF tc_data union. Allows more code sharing in GAS this way. */ union { - unsigned int hppa_arg_reloc; + struct + { + unsigned int hppa_arg_reloc; + unsigned int hppa_priv_level; + } ap; PTR any; } tc_data; @@ -68,29 +79,62 @@ typedef struct som_symbol reduce the size of the relocation stream for incomplete objects. */ int reloc_count; - /* The unwind descriptor bits associated with R_ENTRY relocations - for functions (not enough room in a BFD reloc to store all the - information, so we tack it onto the symbol associated with the - function. */ - char *unwind; + /* During object file writing, the offset of the name of this symbol + in the SOM string table. */ + int stringtab_offset; } som_symbol_type; +/* A structure containing all the magic information stored in a BFD's + private data which needs to be copied during an objcopy/strip run. */ +struct som_exec_data + { + /* Sort-of a magic number. BSD uses it to distinguish between + native executables and hpux executables. */ + short system_id; + + /* Magic exec flags. These control things like whether or not + null pointer dereferencing is allowed and the like. */ + long exec_flags; + + /* We must preserve the version identifier too. Some versions + of the HP linker do not grok NEW_VERSION_ID for reasons unknown. */ + unsigned int version_id; + + /* Add more stuff here as needed. Good examples of information + we might want to pass would be presumed_dp, entry_* and maybe + others from the file header. */ + }; + struct somdata { + /* All the magic information about an executable which lives + in the private BFD structure and needs to be copied from + the input bfd to the output bfd during an objcopy/strip. */ + struct som_exec_data *exec_data; + + /* These three fields are only used when writing files and are + generated from scratch. They need not be copied for objcopy + or strip to work. */ struct header *file_hdr; struct copyright_aux_hdr *copyright_aux_hdr; struct user_string_aux_hdr *version_aux_hdr; + struct som_exec_auxhdr *exec_hdr; + COMPUNIT *comp_unit; + + /* Pointers to a saved copy of the symbol and string tables. These + need not be copied for objcopy or strip to work. */ som_symbol_type *symtab; char *stringtab; + asymbol **sorted_syms; /* We remember these offsets so that after check_file_format, we have - no dependencies on the particular format of the exec_hdr. */ + no dependencies on the particular format of the exec_hdr. + These offsets need not be copied for objcopy or strip to work. */ file_ptr sym_filepos; file_ptr str_filepos; file_ptr reloc_filepos; - unsigned stringtab_size; }; @@ -99,74 +143,101 @@ struct som_data_struct struct somdata a; }; +/* Substructure of som_section_data_struct used to hold information + which can't be represented by the generic BFD section structure, + but which must be copied during objcopy or strip. */ +struct som_copyable_section_data_struct + { + /* Various fields in space and subspace headers that we need + to pass around. */ + unsigned int sort_key : 8; + unsigned int access_control_bits : 7; + unsigned int is_defined : 1; + unsigned int is_private : 1; + unsigned int quadrant : 2; + + /* For subspaces, this points to the section which represents the + space in which the subspace is contained. For spaces it points + back to the section for this space. */ + asection *container; + + /* The user-specified space number. It is wrong to use this as + an index since duplicates and holes are allowed. */ + int space_number; + + /* Add more stuff here as needed. Good examples of information + we might want to pass would be initialization pointers, + and the many subspace flags we do not represent yet. */ + }; + /* Used to keep extra SOM specific information for a given section. reloc_size holds the size of the relocation stream, note this is very different from the number of relocations as SOM relocations - are variable length. + are variable length. - reloc_stream is the actual stream of relocation entries. - - The BFD section index may not exactly match a SOM subspace index, - for this reason we keep track of the original SOM subspace index - when a subspace is turned into a BFD section. */ + reloc_stream is the actual stream of relocation entries. */ struct som_section_data_struct { + struct som_copyable_section_data_struct *copy_data; unsigned int reloc_size; char *reloc_stream; - unsigned int subspace_index; - asection *containing_space; - int is_space; - struct space_dictionary_record space_dict; - int is_subspace; - struct subspace_dictionary_record subspace_dict; + struct space_dictionary_record *space_dict; + struct subspace_dictionary_record *subspace_dict; }; #define somdata(bfd) ((bfd)->tdata.som_data->a) +#define obj_som_exec_data(bfd) (somdata(bfd).exec_data) #define obj_som_file_hdr(bfd) (somdata(bfd).file_hdr) +#define obj_som_exec_hdr(bfd) (somdata(bfd).exec_hdr) #define obj_som_copyright_hdr(bfd) (somdata(bfd).copyright_aux_hdr) #define obj_som_version_hdr(bfd) (somdata(bfd).version_aux_hdr) +#define obj_som_compilation_unit(bfd) (somdata(bfd).comp_unit) #define obj_som_symtab(bfd) (somdata(bfd).symtab) #define obj_som_stringtab(bfd) (somdata(bfd).stringtab) #define obj_som_sym_filepos(bfd) (somdata(bfd).sym_filepos) #define obj_som_str_filepos(bfd) (somdata(bfd).str_filepos) #define obj_som_stringtab_size(bfd) (somdata(bfd).stringtab_size) #define obj_som_reloc_filepos(bfd) (somdata(bfd).reloc_filepos) +#define obj_som_sorted_syms(bfd) (somdata(bfd).sorted_syms) #define som_section_data(sec) \ ((struct som_section_data_struct *)sec->used_by_bfd) -#define som_symbol_data(symbol) \ - ((som_symbol_type *) symbol) - +#define som_symbol_data(symbol) ((som_symbol_type *) symbol) /* Defines groups of basic relocations. FIXME: These should be the only basic relocations created by GAS. The rest should be internal to the BFD backend. The idea is both SOM and ELF define these basic relocation - types so they map into a SOM or ELF specific reloation as - appropriate. This allows GAS to share much more code + types so they map into a SOM or ELF specific relocation as + appropriate. This allows GAS to share much more code between the two object formats. */ #define R_HPPA_NONE R_NO_RELOCATION #define R_HPPA R_CODE_ONE_SYMBOL -#define R_HPPA_ABS_CALL R_ABS_CALL #define R_HPPA_PCREL_CALL R_PCREL_CALL +#define R_HPPA_ABS_CALL R_ABS_CALL #define R_HPPA_GOTOFF R_DP_RELATIVE -#define R_HPPA_COMPLEX R_COMP1 -#define R_HPPA_COMPLEX_PCREL_CALL R_COMP2 -#define R_HPPA_COMPLEX_ABS_CALL R_COMP3 #define R_HPPA_ENTRY R_ENTRY #define R_HPPA_EXIT R_EXIT +#define R_HPPA_COMPLEX R_COMP1 +#define R_HPPA_BEGIN_BRTAB R_BEGIN_BRTAB +#define R_HPPA_END_BRTAB R_END_BRTAB +#define R_HPPA_BEGIN_TRY R_BEGIN_TRY +#define R_HPPA_END_TRY R_END_TRY /* Exported functions, mostly for use by GAS. */ -void bfd_som_set_section_attributes PARAMS ((asection *, int, int, - unsigned int, int)); -void bfd_som_set_subsection_attributes PARAMS ((asection *, asection *, - int, unsigned int, int)); +bfd_boolean bfd_som_set_section_attributes + PARAMS ((asection *, int, int, unsigned int, int)); +bfd_boolean bfd_som_set_subsection_attributes + PARAMS ((asection *, asection *, int, unsigned int, int)); void bfd_som_set_symbol_type PARAMS ((asymbol *, unsigned int)); -void bfd_som_attach_unwind_info PARAMS ((asymbol *, char *)); -boolean bfd_som_attach_aux_hdr PARAMS ((bfd *, int, char *)); +bfd_boolean bfd_som_attach_aux_hdr PARAMS ((bfd *, int, char *)); int ** hppa_som_gen_reloc_type - PARAMS ((bfd *, int, int, enum hppa_reloc_field_selector_type_alt)); + PARAMS ((bfd *, int, int, enum hppa_reloc_field_selector_type_alt, + int, asymbol *)); +bfd_boolean bfd_som_attach_compilation_unit + PARAMS ((bfd *, const char *, const char *, const char *, const char *)); + #endif /* _SOM_H */