/* * psdata.h * * Jeffrey A. Uphoff <juphoff@nrao.edu>, 1995, 1996. * Michael K. Johnson. * Bruno Lankester. * (And others I'm sure...) * *//* * Capabilities are for reading system images and producing maps for * WCHAN output. * * AOUT_CAPABLE and ELF_CAPABLE may have 32-bit word size limitations * and have only been tested by the maintainer on Intel systems.  They * are retained in the source tree in case they are useful; they are * intended to be generally deprecated. * * BFD_CAPABLE should work on any system with BFD. * * Set the capabilities in the top-level Makefile. */#if defined(ELF_CAPABLE)#warning "here"# define ELF_OBJECT 1# define ELF_FUNC 2#endif#include <sys/types.h>#include <linux/utsname.h>#define        PSDATABASE      "/etc/psdatabase"struct dbtbl_s {  off_t off;			/* offset in psdatabase */  int nsym;			/* # symbols */  int size;			/* size of array + strings */};/* * header of psdatabase */struct psdb_hdr {  /* Current procps package version goes here.  kmemps doesn't like this. */  char magic[32];  /*    * These are not functional--they only reside in the database for   * informational purposes (i.e. if you want to look at the raw   * database and see what kernel it's for).   */  char uts_release[__NEW_UTS_LEN];  char uts_version[__NEW_UTS_LEN];  /*    * Again, this is not functional, it's just there for information: it   * shows the path to the uncompressed kernel image that was used to   * generate this database.   */  char sys_path[128];  /* List of all functions. */  struct dbtbl_s fncs;  /*    * This is currently only used to look up system_utsname while   * psupdate is building the database--it really should be phased out!   */  /* List of all bss and data symbols. */  struct dbtbl_s vars;  /*    * The list of tty names that kmemps likes/uses in no longer present   * in the procps psdatabase--it was never being built by procps'   * psupdate anyway, so I removed the entry from the database header.   */};struct sym_s {  unsigned long addr;		/* core address in kernel */  int name;			/* offset from strings ptr */};struct tbl_s {  struct sym_s *tbl;  int nsym;  char *strings;		/* ptr to start of strings */};extern struct psdb_hdr db_hdr;extern struct tbl_s fncs, vars;int read_tbl (struct dbtbl_s *, struct tbl_s *);void *xmalloc (unsigned int);void *xrealloc (void *, unsigned int);#define MLSEEK(FD, WHERE, WHENCE, ERROR)\if (lseek ((FD), (WHERE), (WHENCE)) == -1) {\  perror ((ERROR));\  exit (errno);\}#define MREAD(FD, WHAT, SIZE, ERROR)\if (read ((FD), (WHAT), (SIZE)) != (SIZE)) {\  perror ((ERROR));\  exit (errno);\}