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6 * (c) UNIX System Laboratories, Inc.
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10 * the permission of UNIX System Laboratories, Inc.
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36 * @(#)exec.h 8.3 (Berkeley) 1/21/94
44 * Before ps_args existed, the following structure, found at the top of
45 * the user stack of each user process, was used by ps(1) to locate
46 * environment and argv strings. Normally ps_argvstr points to the
47 * argv vector, and ps_nargvstr is the same as the program's argc. The
48 * fields ps_envstr and ps_nenvstr are the equivalent for the environment.
50 * Programs should now use setproctitle(3) to change ps output.
51 * setproctitle() always informs the kernel with sysctl and sets the
52 * pointers in ps_strings. The kern.proc.args sysctl first tries p_args.
53 * If p_args is NULL, it then falls back to reading ps_strings and following
57 char **ps_argvstr; /* first of 0 or more argument strings */
58 unsigned int ps_nargvstr; /* the number of argument strings */
59 char **ps_envstr; /* first of 0 or more environment strings */
60 unsigned int ps_nenvstr; /* the number of environment strings */
66 int (*ex_imgact)(struct image_params *);
70 #include <machine/exec.h>
73 #include <sys/cdefs.h>
76 * Address of ps_strings structure (in user space).
77 * Prefer the kern.ps_strings or kern.proc.ps_strings sysctls to this constant.
79 #define PS_STRINGS (USRSTACK - sizeof(struct ps_strings))
81 int exec_map_first_page(struct image_params *);
82 void exec_unmap_first_page(struct image_params *);
84 int exec_register(const struct execsw *);
85 int exec_unregister(const struct execsw *);
87 extern int coredump_pack_fileinfo;
88 extern int coredump_pack_vmmapinfo;
91 * note: name##_mod cannot be const storage because the
92 * linker_file_sysinit() function modifies _file in the
96 #include <sys/module.h>
98 #define EXEC_SET(name, execsw_arg) \
99 static int __CONCAT(name,_modevent)(module_t mod, int type, \
102 struct execsw *exec = (struct execsw *)data; \
106 /* printf(#name " module loaded\n"); */ \
107 error = exec_register(exec); \
109 printf(__XSTRING(name) "register failed\n"); \
112 /* printf(#name " module unloaded\n"); */ \
113 error = exec_unregister(exec); \
115 printf(__XSTRING(name) " unregister failed\n");\
118 error = EOPNOTSUPP; \
123 static moduledata_t __CONCAT(name,_mod) = { \
125 __CONCAT(name,_modevent), \
126 (void *)& execsw_arg \
128 DECLARE_MODULE_TIED(name, __CONCAT(name,_mod), SI_SUB_EXEC, \