Update for Sony News port and split of a.out into several variants.
Add write_contents to format-dependent vector.
This commit is contained in:
John Gilmore
parent
df77307a2a
commit
66d4e1bb88
3 changed files with 64 additions and 38 deletions
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@ -82,41 +82,55 @@ enum machine_type {
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/* Code indicating demand-paged executable. */
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#define ZMAGIC 0413
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/* Address of text segment in memory after it is loaded. */
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/* Don't load things at zero, it encourages zero-pointer bugs */
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#ifndef TEXT_START_ADDR
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#define TEXT_START_ADDR 0x10000
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#endif
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/* Virtual Address of text segment from the a.out file. For OMAGIC,
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(almost always "unlinked .o's" these days), should be zero.
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Sun added a kludge so that shared libraries linked ZMAGIC get
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an address of zero if a_entry (!!!) is lower than the otherwise
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expected text address. These kludges have gotta go!
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For linked files, should reflect reality if we know it. */
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#ifndef N_TXTADDR
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#define N_TXTADDR(x) \
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(N_MAGIC(x)==OMAGIC? 0 \
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: (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \
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: TEXT_START_ADDR)
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#define N_TXTADDR(x) (N_MAGIC(x)==OMAGIC? 0 : TEXT_START_ADDR)
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#endif
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/* Address of data segment in memory after it is loaded.
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Note that it is up to you to define SEGMENT_SIZE
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on machines not listed here. */
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#if defined(hp300) || defined(pyr)
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#define SEGMENT_SIZE page_size
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#ifndef N_BADMAG
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#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
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&& N_MAGIC(x) != NMAGIC \
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&& N_MAGIC(x) != ZMAGIC)
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#endif
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#ifdef sony
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#define SEGMENT_SIZE 0x2000
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#endif /* Sony. */
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#ifdef is68k
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#define SEGMENT_SIZE 0x20000
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/* This complexity is for encapsulated COFF support */
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#ifndef _N_HDROFF
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#define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec))
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#endif
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#if defined(m68k) && defined(PORTAR)
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#define PAGE_SIZE 0x400
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#define SEGMENT_SIZE PAGE_SIZE
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#ifndef N_TXTOFF
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#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? \
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_N_HDROFF((x)) + sizeof (struct exec) : \
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sizeof (struct exec))
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#endif
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#ifndef N_DATOFF
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#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
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#endif
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#ifndef N_TRELOFF
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#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data )
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#endif
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#ifndef N_DRELOFF
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#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize )
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#endif
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#ifndef N_SYMOFF
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#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize )
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#endif
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#ifndef N_STROFF
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#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
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#endif
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/* Address of text segment in memory after it is loaded. */
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#ifndef N_TXTADDR
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#define N_TXTADDR(x) 0
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#endif
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#ifndef N_DATADDR
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@ -1,19 +1,25 @@
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/* SPARC-specific values for a.out files */
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#define PAGE_SIZE 0x02000 /* 8K. aka NBPG in <sys/param.h> */
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#define PAGE_SIZE 0x2000 /* 8K. aka NBPG in <sys/param.h> */
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/* Note that some SPARCs have 4K pages, some 8K, some others. */
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#define SEGMENT_SIZE PAGE_SIZE
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#define TEXT_START_ADDR PAGE_SIZE /* Location 0 is not accessible */
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#define SEGMENT_SIZE PAGE_SIZE
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#define TEXT_START_ADDR PAGE_SIZE /* Location 0 is not accessible */
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#define N_BADMAG(x) \
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(N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
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&& N_MAGIC(x) != ZMAGIC)
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/* Non-default definitions of the accessor macros... */
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/* Offset in a.out file of the text section. For ZMAGIC, the text section
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actually includes the a.out header. */
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#define N_TXTOFF(x) ( (N_MAGIC((x)) == ZMAGIC) ? 0 : sizeof(struct exec) )
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#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
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#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data )
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#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize )
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#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize )
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#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
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/* Virtual Address of text segment from the a.out file. For OMAGIC,
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(almost always "unlinked .o's" these days), should be zero.
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Sun added a kludge so that shared libraries linked ZMAGIC get
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an address of zero if a_entry (!!!) is lower than the otherwise
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expected text address. These kludges have gotta go!
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For linked files, should reflect reality if we know it. */
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#define N_TXTADDR(x) \
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(N_MAGIC(x)==OMAGIC? 0 \
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: (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \
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: TEXT_START_ADDR)
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@ -416,6 +416,11 @@ typedef enum
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#define BFD_SEND_FMT(bfd, message, arglist) \
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(((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
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/* This is the struct which defines the type of BFD this is. The
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"xvec" member of the struct bfd itself points here. Each module
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that implements access to a different target under BFD, defines
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one of these. */
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/* FIXME, these names should be rationalised with the names of the entry points
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which call them. Too bad we can't have one macro to define them both! */
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typedef struct bfd_target
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@ -458,7 +463,8 @@ typedef struct bfd_target
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/* Format-dependent */
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SDEF_FMT (struct bfd_target *, _bfd_check_format, (bfd *));/* file fmt or 0 */
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SDEF_FMT (boolean, _bfd_set_format, (bfd *)); /* make it an object file. */
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SDEF_FMT (boolean, _bfd_set_format, (bfd *)); /* make it an object file */
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SDEF_FMT (boolean, _bfd_write_contents, (bfd *)); /* write it out at close */
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/* All these are defined in JUMP_TABLE */
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/* Core files */
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