diff options
Diffstat (limited to 'boot/boot.c')
| -rw-r--r-- | boot/boot.c | 94 |
1 files changed, 89 insertions, 5 deletions
diff --git a/boot/boot.c b/boot/boot.c index cf89e65a..71b47942 100644 --- a/boot/boot.c +++ b/boot/boot.c @@ -34,6 +34,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <fcntlbits.h> #include <elf.h> #include <mach/mig_support.h> +#include <mach/default_pager.h> #include "notify_S.h" #include "exec_S.h" @@ -52,7 +53,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #undef errno int errno; -mach_port_t privileged_host_port, master_device_port; +mach_port_t privileged_host_port, master_device_port, defpager; mach_port_t pseudo_master_device_port; mach_port_t receive_set; mach_port_t pseudo_console; @@ -154,7 +155,7 @@ task_by_pid (int pid) int write (int fd, - void *buf, + const void *buf, int buflen) { return syscall (4, fd, buf, buflen); @@ -169,7 +170,7 @@ read (int fd, } int -open (char *name, +open (const char *name, int flags, int mode) { @@ -177,6 +178,12 @@ open (char *name, } int +close (int fd) +{ + return syscall (6, fd); +} + +int lseek (int fd, int off, int whence) @@ -286,8 +293,32 @@ sigvec (int sig, struct sigvec *vec, struct sigvec *ovec) #else int sigvec (); #endif + +char *useropen_dir; int +useropen (const char *name, int flags, int mode) +{ + if (useropen_dir) + { + static int dlen; + if (!dlen) dlen = strlen (useropen_dir); + { + int len = strlen (name); + char try[dlen + 1 + len + 1]; + int fd; + memcpy (try, useropen_dir, dlen); + try[dlen] = '/'; + memcpy (&try[dlen + 1], name, len + 1); + fd = open (try, flags, mode); + if (fd >= 0) + return fd; + } + } + return open (name, flags, mode); +} + +int request_server (mach_msg_header_t *inp, mach_msg_header_t *outp) { @@ -334,7 +365,7 @@ load_image (task_t t, char msg[] = "cannot open bootstrap file"; - fd = open (file, 0, 0); + fd = useropen (file, 0, 0); if (fd == -1) { @@ -475,6 +506,46 @@ boot_script_port_insert_right (mach_port_t task, mach_port_t name, } int +boot_script_read_file (const char *filename) +{ + static const char msg[] = ": cannot open\n"; + int fd = useropen (filename, 0, 0); + struct stat st; + error_t err; + mach_port_t memobj; + vm_address_t region; + + write (2, filename, strlen (filename)); + if (fd < 0) + { + write (2, msg, sizeof msg - 1); + uxexit (1); + } + else + write (2, msg + sizeof msg - 2, 1); + + fstat (fd, &st); + + err = default_pager_object_create (defpager, &memobj, + round_page (st.st_size)); + if (err) + { + static const char msg[] = "cannot create default-pager object\n"; + write (2, msg, sizeof msg - 1); + uxexit (1); + } + + region = 0; + vm_map (mach_task_self (), ®ion, round_page (st.st_size), + 0, 1, memobj, 0, 0, VM_PROT_ALL, VM_PROT_ALL, VM_INHERIT_NONE); + read (fd, (char *) region, st.st_size); + vm_deallocate (mach_task_self (), region, round_page (st.st_size)); + + close (fd); + return 0; +} + +int boot_script_exec_cmd (mach_port_t task, char *path, int argc, char **argv, char *strings, int stringlen) { @@ -530,7 +601,8 @@ int main (int argc, char **argv, char **envp) { mach_port_t foo; - static const char usagemsg[] = "Usage: boot [SWITCHES] SCRIPT ROOT-DEVICE\n"; + static const char usagemsg[] + = "Usage: boot [-D dir] [SWITCHES] SCRIPT ROOT-DEVICE\n"; char *buf = 0; char *bootscript; int i, len; @@ -540,14 +612,26 @@ main (int argc, char **argv, char **envp) privileged_host_port = task_by_pid (-1); master_device_port = task_by_pid (-2); + defpager = MACH_PORT_NULL; + vm_set_default_memory_manager (privileged_host_port, &defpager); + boot_script_task_port = mach_task_self (); if (argc < 2 || (argv[1][0] == '-' && argc < 3)) { + usage: write (2, usagemsg, sizeof usagemsg); uxexit (1); } + if (!strcmp (argv[1], "-D")) + { + if (argc < 4) + goto usage; + useropen_dir = argv[2]; + argv += 2; + } + if (argv[1][0] != '-') { bootstrap_args = "-x"; |