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#ifndef _LINUX_SOM_H #define _LINUX_SOM_H /* File format definition for SOM executables / shared libraries */ /* we need struct timespec */ #include <linux/time.h> #define SOM_PAGESIZE 4096 /* this is the SOM header */ struct som_hdr { short system_id; /* magic number - system */ short a_magic; /* magic number - file type */ unsigned int version_id; /* versiod ID: YYMMDDHH */ struct timespec file_time; /* system clock */ unsigned int entry_space; /* space for entry point */ unsigned int entry_subspace; /* subspace for entry point */ unsigned int entry_offset; /* offset of entry point */ unsigned int aux_header_location; /* auxiliary header location */ unsigned int aux_header_size; /* auxiliary header size */ unsigned int som_length; /* length of entire SOM */ unsigned int presumed_dp; /* compiler's DP value */ unsigned int space_location; /* space dictionary location */ unsigned int space_total; /* number of space entries */ unsigned int subspace_location; /* subspace entries location */ unsigned int subspace_total; /* number of subspace entries */ unsigned int loader_fixup_location; /* MPE/iX loader fixup */ unsigned int loader_fixup_total; /* number of fixup records */ unsigned int space_strings_location; /* (sub)space names */ unsigned int space_strings_size; /* size of strings area */ unsigned int init_array_location; /* reserved */ unsigned int init_array_total; /* reserved */ unsigned int compiler_location; /* module dictionary */ unsigned int compiler_total; /* number of modules */ unsigned int symbol_location; /* symbol dictionary */ unsigned int symbol_total; /* number of symbols */ unsigned int fixup_request_location; /* fixup requests */ unsigned int fixup_request_total; /* number of fixup requests */ unsigned int symbol_strings_location;/* module & symbol names area */ unsigned int symbol_strings_size; /* size of strings area */ unsigned int unloadable_sp_location; /* unloadable spaces location */ unsigned int unloadable_sp_size; /* size of data */ unsigned int checksum; }; /* values for system_id */ #define SOM_SID_PARISC_1_0 0x020b #define SOM_SID_PARISC_1_1 0x0210 #define SOM_SID_PARISC_2_0 0x0214 /* values for a_magic */ #define SOM_LIB_EXEC 0x0104 #define SOM_RELOCATABLE 0x0106 #define SOM_EXEC_NONSHARE 0x0107 #define SOM_EXEC_SHARE 0x0108 #define SOM_EXEC_DEMAND 0x010B #define SOM_LIB_DYN 0x010D #define SOM_LIB_SHARE 0x010E #define SOM_LIB_RELOC 0x0619 /* values for version_id. Decimal not hex, yes. Grr. */ #define SOM_ID_OLD 85082112 #define SOM_ID_NEW 87102412 struct aux_id { unsigned int mandatory :1; /* the linker must understand this */ unsigned int copy :1; /* Must be copied by the linker */ unsigned int append :1; /* Must be merged by the linker */ unsigned int ignore :1; /* Discard section if unknown */ unsigned int reserved :12; unsigned int type :16; /* Header type */ unsigned int length; /* length of _following_ data */ }; /* The Exec Auxiliary Header. Called The HP-UX Header within HP apparently. */ struct som_exec_auxhdr { struct aux_id som_auxhdr; int exec_tsize; /* Text size in bytes */ int exec_tmem; /* Address to load text at */ int exec_tfile; /* Location of text in file */ int exec_dsize; /* Data size in bytes */ int exec_dmem; /* Address to load data at */ int exec_dfile; /* Location of data in file */ int exec_bsize; /* Uninitialised data (bss) */ int exec_entry; /* Address to start executing */ int exec_flags; /* loader flags */ int exec_bfill; /* initialisation value for bss */ }; /* Oh, the things people do to avoid casts. Shame it'll break with gcc's * new aliasing rules really. */ union name_pt { char * n_name; unsigned int n_strx; }; /* The Space Dictionary */ struct space_dictionary_record { union name_pt name; /* index to subspace name */ unsigned int is_loadable :1; /* loadable */ unsigned int is_defined :1; /* defined within file */ unsigned int is_private :1; /* not sharable */ unsigned int has_intermediate_code :1; /* contains intermediate code */ unsigned int is_tspecific :1; /* thread specific */ unsigned int reserved :11; /* for future expansion */ unsigned int sort_key :8; /* for linker */ unsigned int reserved2 :8; /* for future expansion */ int space_number; /* index */ int subspace_index; /* index into subspace dict */ unsigned int subspace_quantity; /* number of subspaces */ int loader_fix_index; /* for loader */ unsigned int loader_fix_quantity; /* for loader */ int init_pointer_index; /* data pointer array index */ unsigned int init_pointer_quantity; /* number of data pointers */ }; /* The Subspace Dictionary */ struct subspace_dictionary_record { int space_index; unsigned int access_control_bits :7; unsigned int memory_resident :1; unsigned int dup_common :1; unsigned int is_common :1; unsigned int quadrant :2; unsigned int initially_frozen :1; unsigned int is_first :1; unsigned int code_only :1; unsigned int sort_key :8; unsigned int replicate_init :1; unsigned int continuation :1; unsigned int is_tspecific :1; unsigned int is_comdat :1; unsigned int reserved :4; int file_loc_init_value; unsigned int initialization_length; unsigned int subspace_start; unsigned int subspace_length; unsigned int reserved2 :5; unsigned int alignment :27; union name_pt name; int fixup_request_index; unsigned int fixup_request_quantity; }; #endif /* _LINUX_SOM_H */