From 104f3121f8005b426d4df77b2420cfe5837033d1 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 8 Jan 2018 23:00:37 +0100 Subject: Implement /proc//exe by adding proc_set/get_exe to the proc server, making exec call proc_set_exe, and libps call proc_get_exe. procfs can then just retrieve the information to make the "exe" symlink. * hurd/process.defs (proc_set_exe, proc_get_exe): New RPCs. * hurd/process_request.defs: Likewise. * hurd/process_reply.defs: Add skips for proc_set_exe and proc_get_exe RPCs. * proc/proc.h (struct proc): Add `exe' field. * proc/info.c (S_proc_set_exe, S_proc_get_exe): New functions. * proc/mgt.c (process_has_exited): Free p->exe. (S_proc_child): Duplicate parent `exe' into child's `exe'. * exec/exec.c (do_exec): Call proc_set_exe when a filename is available. * libps/ps.h (struct proc_stat): Add `exe_vm_alloced', `exe', and `exe_len' field. (PSTAT_EXE): New macro. (PSTAT_USER_BASE): Change value to make room. (proc_stat_exe, proc_stat_exe_len): New macros. * libps/procstat.c (proc_stat_set_flags): Handle PSTAT_EXE case by calling proc_get_exe. * libps/spec.c (ps_get_exe): New function. (ps_exe_getter): New structure. (ps_fmt_spec): Add "Exe" specification. * procfs/process.c (process_file_symlink_make_node, process_file_gc_exe): New functions. (procfs_dir_entry): Add "exe" entry. * startup/startup.c (launch_core_servers): Set exe paths for startup, auth, proc, and fs servers. (frob_kernel_process): Set exe path for kernel task. (S_startup_essential_task): Set exe path for exec server. --- proc/proc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'proc/proc.h') diff --git a/proc/proc.h b/proc/proc.h index b33845d9..a974f629 100644 --- a/proc/proc.h +++ b/proc/proc.h @@ -68,6 +68,7 @@ struct proc pthread_cond_t p_wakeup; /* Miscellaneous information */ + char *exe; /* path to binary executable */ vm_address_t p_argv, p_envp; vm_address_t start_code; /* all executable segments are in this range */ vm_address_t end_code; -- cgit v1.2.3