diff options
Diffstat (limited to 'include/aout/sun4.h')
| -rw-r--r-- | include/aout/sun4.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/aout/sun4.h b/include/aout/sun4.h new file mode 100644 index 0000000..5ad4845 --- /dev/null +++ b/include/aout/sun4.h @@ -0,0 +1,30 @@ +/* SPARC-specific values for a.out files */ + +#define PAGE_SIZE 0x2000 /* 8K. aka NBPG in <sys/param.h> */ +/* Note that some SPARCs have 4K pages, some 8K, some others. */ + +#define SEG_SIZE_SPARC PAGE_SIZE +#define SEG_SIZE_SUN3 0x20000 /* Resolution of r/w protection hw */ + +#define TEXT_START_ADDR PAGE_SIZE /* Location 0 is not accessible */ +#define N_HEADER_IN_TEXT(x) 1 + +/* Non-default definitions of the accessor macros... */ + +/* Segment size varies on Sun-3 versus Sun-4. */ + +#define N_SEGSIZE(x) (N_MACHTYPE(x) == M_SPARC? SEG_SIZE_SPARC: \ + N_MACHTYPE(x) == M_68020? SEG_SIZE_SUN3: \ + /* Guess? */ PAGE_SIZE) + +/* Virtual Address of text segment from the a.out file. For OMAGIC, + (almost always "unlinked .o's" these days), should be zero. + Sun added a kludge so that shared libraries linked ZMAGIC get + an address of zero if a_entry (!!!) is lower than the otherwise + expected text address. These kludges have gotta go! + For linked files, should reflect reality if we know it. */ + +#define N_TXTADDR(x) \ + (N_MAGIC(x)==OMAGIC? 0 \ + : (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \ + : TEXT_START_ADDR+EXEC_BYTES_SIZE) |