/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2001 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
+#include <vm/vm_shared_memory_server.h>
#include <kern/thread.h>
#include <kern/task.h>
#include <mach-o/fat.h>
#include <mach-o/loader.h>
#include <machine/vmparam.h>
+#if KTRACE
+#include <sys/ktrace.h>
+#endif
+
+int app_profile = 0;
extern vm_map_t bsd_pageable_map;
static int load_return_to_errno(load_return_t lrtn);
int execve(struct proc *p, struct execve_args *uap, register_t *retval);
+static int execargs_alloc(vm_offset_t *addrp);
+static int execargs_free(vm_offset_t addr);
int
execv(p, args, retval)
vm_map_t old_map;
vm_map_t map;
int i;
+ boolean_t new_shared_regions = FALSE;
union {
/* #! and name of interpreter */
char ex_shell[SHSIZE];
int vfexec=0;
unsigned long arch_offset =0;
unsigned long arch_size = 0;
+ char *ws_cache_name = NULL; /* used for pre-heat */
task = current_task();
thr_act = current_act();
}
}
- ret = kmem_alloc_pageable(bsd_pageable_map, &execargs, NCARGS);
- if (ret != KERN_SUCCESS)
- return(ENOMEM);
+ error = execargs_alloc(&execargs);
+ if (error)
+ return(error);
savedpath = execargs;
* We have to do this before namei() because in case of
* symbolic links, namei() would overwrite the original "path".
* In case the last symbolic link resolved was a relative pathname
- * we would loose the original "path", which could be an
+ * we would lose the original "path", which could be an
* absolute pathname. This might be unacceptable for dyld.
*/
/* XXX We could optimize to avoid copyinstr in the namei() */
* copyinstr will put in savedpathlen, the count of
* characters (including NULL) in the path.
*/
+
+ if(app_profile != 0) {
+
+ /* grab the name of the file out of its path */
+ /* we will need this for lookup within the */
+ /* name file */
+ ws_cache_name = savedpath + savedpathlen;
+ while (ws_cache_name[0] != '/') {
+ if(ws_cache_name == savedpath) {
+ ws_cache_name--;
+ break;
+ }
+ ws_cache_name--;
+ }
+ ws_cache_name++;
+ }
/* Save the name aside for future use */
execargsp = (vm_offset_t *)((char *)(execargs) + savedpathlen);
printf("execve: task_create failed. Code: 0x%x\n", result);
p->task = new_task;
set_bsdtask_info(new_task, p);
+ if (p->p_nice != 0)
+ resetpriority(p);
task = new_task;
map = get_task_map(new_task);
result = thread_create(new_task, &thr_act);
* Load the Mach-O file.
*/
VOP_UNLOCK(vp, 0, p);
+ if(ws_cache_name) {
+ tws_handle_startup_file(task, cred->cr_uid,
+ ws_cache_name, vp, &new_shared_regions);
+ }
+ if (new_shared_regions) {
+ shared_region_mapping_t new_shared_region;
+ shared_region_mapping_t old_shared_region;
+
+ if (shared_file_create_system_region(&new_shared_region))
+ panic("couldn't create system_shared_region\n");
+
+ vm_get_shared_region(task, &old_shared_region);
+ vm_set_shared_region(task, new_shared_region);
+
+ shared_region_mapping_dealloc(old_shared_region);
+ }
+
lret = load_machfile(vp, mach_header, arch_offset,
arch_size, &load_result, thr_act, map);
* root set it.
*/
if (p->p_tracep && !(p->p_traceflag & KTRFAC_ROOT)) {
- vrele(p->p_tracep);
+ struct vnode *tvp = p->p_tracep;
p->p_tracep = NULL;
p->p_traceflag = 0;
+ vrele(tvp);
}
#endif
if (origvattr.va_mode & VSUID)
p->p_cred->p_svuid = p->p_ucred->cr_uid;
p->p_cred->p_svgid = p->p_ucred->cr_gid;
- if (!vfexec && (p->p_flag & P_TRACED)) {
+ if (!vfexec && (p->p_flag & P_TRACED))
psignal(p, SIGTRAP);
- ast_on(AST_BSD);
- }
if (error) {
goto badtoolate;
* and NBPW for the NULL after pointer to path.
*/
ap = ucp - na*NBPW - 3*NBPW - savedpathlen - 2*NBPW;
+#if defined(ppc)
+ thread_setuserstack(thr_act, ap); /* Set the stack */
+#else
uthread->uu_ar0[SP] = ap;
+#endif
(void) suword((caddr_t)ap, na-ne); /* argc */
nc = 0;
cc = 0;
}
if (load_result.dynlinker) {
+#if defined(ppc)
+ ap = thread_adjuserstack(thr_act, -4); /* Adjust the stack */
+#else
ap = uthread->uu_ar0[SP] -= 4;
+#endif
(void) suword((caddr_t)ap, load_result.mach_header);
}
if (vfexec) {
vm_map_switch(old_map);
}
-#if defined(i386) || defined(ppc)
+#if defined(ppc)
+ thread_setentrypoint(thr_act, load_result.entry_point); /* Set the entry point */
+#elif defined(i386)
uthread->uu_ar0[PC] = load_result.entry_point;
#else
#error architecture not implemented!
/*
* Reset signal state.
*/
- execsigs(p);
+ execsigs(p, thr_act);
/*
* Close file descriptors
*/
fdexec(p);
/* FIXME: Till vmspace inherit is fixed: */
- if (p->vm_shm)
+ if (!vfexec && p->vm_shm)
shmexit(p);
+ /* Clean up the semaphores */
+ semexit(p);
/*
* Remember file name for accounting.
badtoolate:
if (vfexec) {
- (void) thread_resume(thr_act);
task_deallocate(new_task);
act_deallocate(thr_act);
if (error)
vput(vp);
bad1:
if (execargs)
- kmem_free(bsd_pageable_map, execargs, NCARGS);
+ execargs_free(execargs);
if (!error && vfexec) {
vfork_return(current_act(), p->p_pptr, p, retval);
+ (void) thread_resume(thr_act);
return(0);
}
return(error);
register_t retval[2];
struct uthread * ut;
- unix_master();
-
error = 0;
/* init_args are copied in string form directly from bootstrap */
error = execve(p,&init_exec_args,retval);
} while (error);
-
- unix_release();
}
/*
return (0);
}
+#include <mach/mach_types.h>
+#include <mach/vm_prot.h>
+#include <mach/semaphore.h>
+#include <mach/sync_policy.h>
+#include <kern/clock.h>
+#include <mach/kern_return.h>
+
+extern semaphore_t execve_semaphore;
+
+static int
+execargs_alloc(addrp)
+ vm_offset_t *addrp;
+{
+ kern_return_t kret;
+
+ kret = semaphore_wait(execve_semaphore);
+ if (kret != KERN_SUCCESS)
+ switch (kret) {
+ default:
+ return (EINVAL);
+ case KERN_INVALID_ADDRESS:
+ case KERN_PROTECTION_FAILURE:
+ return (EACCES);
+ case KERN_ABORTED:
+ case KERN_OPERATION_TIMED_OUT:
+ return (EINTR);
+ }
+
+ kret = kmem_alloc_pageable(bsd_pageable_map, addrp, NCARGS);
+ if (kret != KERN_SUCCESS)
+ return (ENOMEM);
+
+ return (0);
+}
+
+static int
+execargs_free(addr)
+ vm_offset_t addr;
+{
+ kern_return_t kret;
+
+ kmem_free(bsd_pageable_map, addr, NCARGS);
+
+ kret = semaphore_signal(execve_semaphore);
+ switch (kret) {
+ case KERN_INVALID_ADDRESS:
+ case KERN_PROTECTION_FAILURE:
+ return (EINVAL);
+ case KERN_ABORTED:
+ case KERN_OPERATION_TIMED_OUT:
+ return (EINTR);
+ case KERN_SUCCESS:
+ return(0);
+ default:
+ return (EINVAL);
+ }
+}
+
projects / apple / xnu.git / blobdiff