31 lines
1.1 KiB
C
Executable File
31 lines
1.1 KiB
C
Executable File
/* 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)
|