diff options
Diffstat (limited to 'sys/sys/kernel.h')
| -rw-r--r-- | sys/sys/kernel.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/sys/kernel.h b/sys/sys/kernel.h index 682e6c8..aafa843 100644 --- a/sys/sys/kernel.h +++ b/sys/sys/kernel.h @@ -44,6 +44,9 @@ extern long hostid; extern char hostname[MAXHOSTNAMELEN]; extern int hostnamelen; +extern char domainname[MAXHOSTNAMELEN]; +extern int domainnamelen; + /* 1.2 */ extern volatile struct timeval mono_time; @@ -57,3 +60,24 @@ extern int hz; /* system clock's frequency */ extern int stathz; /* statistics clock's frequency */ extern int profhz; /* profiling clock's frequency */ extern int lbolt; /* once a second sleep address */ + +/* + * The following macros are used to declare global sets of objects, which + * are collected by the linker into a `struct linker_set' as defined below. + * + * NB: the constants defined below must match those defined in + * ld/ld.h. Since their calculation requires arithmetic, we + * can't name them symbolically (e.g., 23 is N_SETT | N_EXT). + */ +#define MAKE_SET(set, sym, type) \ + asm(".stabs \"_" #set "\", " #type ", 0, 0, _" #sym) +#define TEXT_SET(set, sym) MAKE_SET(set, sym, 23) +#define DATA_SET(set, sym) MAKE_SET(set, sym, 25) +#define BSS_SET(set, sym) MAKE_SET(set, sym, 27) +#define ABS_SET(set, sym) MAKE_SET(set, sym, 21) + +struct linker_set { + int ls_length; + caddr_t ls_items[1]; /* really ls_length of them, trailing NULL */ +}; + |
