146439Sbostic /*- 261064Sbostic * Copyright (c) 1992, 1993 361064Sbostic * The Regents of the University of California. All rights reserved. 423413Smckusick * 546439Sbostic * %sccs.include.redist.c% 646439Sbostic * 7*64507Smckusick * @(#)exec.h 8.2 (Berkeley) 09/21/93 823413Smckusick */ 916744Ssam 1053001Sbostic #include <machine/exec.h> 1153008Smckusick 1253008Smckusick /* 1353008Smckusick * The following structure is found at the top of the user stack of each 1453008Smckusick * user process. The ps program uses it to locate argv and environment 1553008Smckusick * strings. Programs that wish ps to display other information may modify 1653008Smckusick * it; normally ps_argvstr points to the text for argv[0], and ps_nargvstr 1753008Smckusick * is the same as the program's argc. The fields ps_envstr and ps_nenvstr 1853008Smckusick * are the equivalent for the environment. 1953008Smckusick */ 2053008Smckusick struct ps_strings { 2153008Smckusick char *ps_argvstr; /* first of 0 or more argument strings */ 2253008Smckusick int ps_nargvstr; /* the number of argument strings */ 2353008Smckusick char *ps_envstr; /* first of 0 or more environment strings */ 2453008Smckusick int ps_nenvstr; /* the number of environment strings */ 2553008Smckusick }; 2653008Smckusick 2753008Smckusick /* 2853008Smckusick * Address of ps_strings structure (in user space). 2953008Smckusick */ 3053008Smckusick #define PS_STRINGS \ 3153008Smckusick ((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings))) 32*64507Smckusick 33*64507Smckusick /* 34*64507Smckusick * Arguments to the exec system call. 35*64507Smckusick */ 36*64507Smckusick struct execve_args { 37*64507Smckusick char *fname; 38*64507Smckusick char **argp; 39*64507Smckusick char **envp; 40*64507Smckusick }; 41