040362e379
. make exec() callers (i.e. vfs and rs) determine the memory layout by explicitly reserving regions using mmap() calls on behalf of the exec()ing process, i.e. handling all of the exec logic, thereby eliminating all special exec() knowledge from VM. . the new procedure is: clear the exec()ing process first, then call third-party mmap()s to reserve memory, then copy the executable file section contents in, all using callbacks tailored to the caller's way of starting an executable . i.e. no more explicit EXEC_NEWMEM-style calls in PM or VM as with rigid 2-section arguments . this naturally allows generalizing exec() by simply loading all ELF sections . drop/merge of lots of duplicate exec() code into libexec . not copying the code sections to vfs and into the executable again is a measurable performance improvement (about 3.3% faster for 'make' in src/servers/)
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/* Function prototypes. */
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struct mproc;
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struct stat;
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struct mem_map;
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struct memory;
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#include <timers.h>
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/* alarm.c */
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int do_alarm(void);
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int do_itimer(void);
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void set_alarm(struct mproc *rmp, clock_t ticks);
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void check_vtimer(int proc_nr, int sig);
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/* break.c */
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int do_brk(void);
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/* exec.c */
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int do_exec(void);
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int do_newexec(void);
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int do_execrestart(void);
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void exec_restart(struct mproc *rmp, int result, vir_bytes pc, vir_bytes sp);
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/* forkexit.c */
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int do_fork(void);
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int do_srv_fork(void);
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int do_exit(void);
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void exit_proc(struct mproc *rmp, int exit_status, int dump_core);
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void exit_restart(struct mproc *rmp, int dump_core);
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int do_waitpid(void);
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int wait_test(struct mproc *rmp, struct mproc *child);
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/* getset.c */
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int do_get(void);
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int do_set(void);
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/* main.c */
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int main(void);
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void setreply(int proc_nr, int result);
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/* mcontext.c */
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int do_getmcontext(void);
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int do_setmcontext(void);
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#if ! USE_MCONTEXT
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#define do_getmcontext no_sys
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#define do_setmcontext no_sys
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#endif
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/* misc.c */
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int do_reboot(void);
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int do_sysuname(void);
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int do_getsysinfo(void);
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int do_getprocnr(void);
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int do_getepinfo(void);
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int do_getepinfo_o(void);
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int do_svrctl(void);
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int do_getsetpriority(void);
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/* schedule.c */
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void sched_init(void);
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int sched_start_user(endpoint_t ep, struct mproc *rmp);
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int sched_nice(struct mproc *rmp, int nice);
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/* profile.c */
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int do_sprofile(void);
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int do_cprofile(void);
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/* signal.c */
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int do_kill(void);
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int do_srv_kill(void);
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int process_ksig(endpoint_t proc_nr_e, int signo);
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int do_pause(void);
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int check_sig(pid_t proc_id, int signo, int ksig);
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void sig_proc(struct mproc *rmp, int signo, int trace, int ksig);
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int do_sigaction(void);
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int do_sigpending(void);
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int do_sigprocmask(void);
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int do_sigreturn(void);
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int do_sigsuspend(void);
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void check_pending(struct mproc *rmp);
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void restart_sigs(struct mproc *rmp);
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void vm_notify_sig_wrapper(endpoint_t ep);
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/* time.c */
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int do_stime(void);
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int do_time(void);
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int do_times(void);
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/* trace.c */
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int do_trace(void);
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void stop_proc(struct mproc *rmp, int sig_nr);
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#if ! USE_TRACE
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#define do_trace no_sys
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#define stop_proc no_sys
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#endif
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/* utility.c */
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pid_t get_free_pid(void);
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int no_sys(void);
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char *find_param(const char *key);
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struct mproc *find_proc(pid_t lpid);
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int nice_to_priority(int nice, unsigned *new_q);
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int pm_isokendpt(int ep, int *proc);
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void tell_vfs(struct mproc *rmp, message *m_ptr);
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