static int load_elf(struct exec_info *execi)
{
int r;
struct vnode *vp;
int proc_e;
phys_bytes tot_bytes; /* total space for program, including gap */
vir_bytes text_vaddr, text_paddr, text_filebytes, text_membytes;
vir_bytes data_vaddr, data_paddr, data_filebytes, data_membytes;
off_t text_offset, data_offset;
int sep_id, is_elf;
assert(execi != NULL);
assert(execi->hdr != NULL);
assert(execi->vp != NULL);
proc_e = execi->proc_e;
vp = execi->vp;
/* Read the file header and extract the segment sizes. */
r = read_header_elf(execi->hdr, &text_vaddr, &text_paddr,
&text_filebytes, &text_membytes,
&data_vaddr, &data_paddr,
&data_filebytes, &data_membytes,
&execi->pc, &text_offset, &data_offset);
if (r != OK) return(r);
sep_id = 0;
is_elf = 1;
tot_bytes = 0; /* Use default stack size */
r = exec_newmem(proc_e,
trunc_page(text_vaddr), text_membytes,
trunc_page(data_vaddr), data_membytes,
tot_bytes, execi->frame_len, sep_id, is_elf,
vp->v_dev, vp->v_inode_nr, execi->sb.st_ctime,
execi->progname, execi->new_uid, execi->new_gid,
&execi->stack_top, &execi->load_text, &execi->setugid);
if (r != OK) {
printf("VFS: load_elf: exec_newmem failed: %d\n", r);
return(r);
}
/* Read in text and data segments. */
if (execi->load_text)
r = read_seg(vp, text_offset, proc_e, T, text_vaddr, text_filebytes);
if (r == OK)
r = read_seg(vp, data_offset, proc_e, D, data_vaddr, data_filebytes);
return(r);
}
static int load_aout(struct exec_info *execi)
{
int r;
struct vnode *vp;
int proc_e;
off_t off;
int hdrlen;
int sep_id;
vir_bytes text_bytes, data_bytes, bss_bytes;
phys_bytes tot_bytes; /* total space for program, including gap */
assert(execi != NULL);
assert(execi->hdr != NULL);
assert(execi->vp != NULL);
proc_e = execi->proc_e;
vp = execi->vp;
/* Read the file header and extract the segment sizes. */
r = read_header_aout(execi->hdr, execi->vp->v_size, &sep_id,
&text_bytes, &data_bytes, &bss_bytes,
&tot_bytes, &execi->pc, &hdrlen);
if (r != OK) return(r);
r = exec_newmem(proc_e, 0 /* text_addr */, text_bytes,
0 /* data_addr */, data_bytes + bss_bytes, tot_bytes,
execi->frame_len, sep_id, 0 /* is_elf */, vp->v_dev, vp->v_inode_nr,
execi->sb.st_ctime,
execi->progname, execi->new_uid, execi->new_gid,
&execi->stack_top, &execi->load_text, &execi->setugid);
if (r != OK) {
printf("VFS: load_aout: exec_newmem failed: %d\n", r);
return(r);
}
off = hdrlen;
/* Read in text and data segments. */
if (execi->load_text) r = read_seg(vp, off, proc_e, T, 0, text_bytes);
off += text_bytes;
if (r == OK) r = read_seg(vp, off, proc_e, D, 0, data_bytes);
return (r);
}
static int load_elf(struct exec_info *execi)
{
int r;
int proc_e;
phys_bytes tot_bytes; /* total space for program, including gap */
vir_bytes text_addr, text_filebytes, text_membytes;
vir_bytes data_addr, data_filebytes, data_membytes;
off_t text_offset, data_offset;
int sep_id, is_elf, load_text, allow_setuid;
uid_t new_uid;
gid_t new_gid;
assert(execi != NULL);
assert(execi->image != NULL);
proc_e = execi->proc_e;
/* Read the file header and extract the segment sizes. */
r = read_header_elf(execi->image, &text_addr, &text_filebytes, &text_membytes,
&data_addr, &data_filebytes, &data_membytes,
&tot_bytes, &execi->pc, &text_offset, &data_offset);
if (r != OK) {
return(r);
}
new_uid= getuid();
new_gid= getgid();
sep_id = 1;
is_elf = 1;
r = exec_newmem(proc_e,
trunc_page(text_addr), text_membytes,
trunc_page(data_addr), data_membytes,
tot_bytes, execi->frame_len, sep_id, is_elf,
0 /*dev*/, proc_e /*inum*/, 0 /*ctime*/,
execi->progname, new_uid, new_gid,
&execi->stack_top, &load_text, &allow_setuid);
if (r != OK)
{
printf("RS: load_elf: exec_newmem failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
/* Read in text and data segments. */
if (load_text) {
r = read_seg(execi, text_offset, proc_e, T, text_addr, text_filebytes);
if (r != OK)
{
printf("RS: load_elf: read_seg failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
}
else
printf("RS: load_elf: not loading text segment\n");
r = read_seg(execi, data_offset, proc_e, D, data_addr, data_filebytes);
if (r != OK)
{
printf("RS: load_elf: read_seg failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
return(OK);
}
static int load_aout(struct exec_info *execi)
{
int r;
int hdrlen, sep_id, load_text, allow_setuid;
vir_bytes text_bytes, data_bytes, bss_bytes;
phys_bytes tot_bytes;
off_t off;
uid_t new_uid;
gid_t new_gid;
int proc_e;
assert(execi != NULL);
assert(execi->image != NULL);
proc_e = execi->proc_e;
/* Read the file header and extract the segment sizes. */
r = read_header_aout(execi->image, execi->image_len, &sep_id,
&text_bytes, &data_bytes, &bss_bytes,
&tot_bytes, &execi->pc, &hdrlen);
if (r != OK)
{
return r;
}
new_uid= getuid();
new_gid= getgid();
/* XXX what should we use to identify the executable? */
r= exec_newmem(proc_e, 0 /*text_addr*/, text_bytes,
0 /*data_addr*/, data_bytes + bss_bytes, tot_bytes,
execi->frame_len, sep_id, 0 /*is_elf*/, 0 /*dev*/, proc_e /*inum*/, 0 /*ctime*/,
execi->progname, new_uid, new_gid, &execi->stack_top, &load_text,
&allow_setuid);
if (r != OK)
{
printf("RS: load_aout: exec_newmem failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
off = hdrlen;
/* Read in text and data segments. */
if (load_text) {
r= read_seg(execi, off, proc_e, T, 0, text_bytes);
if (r != OK)
{
printf("RS: load_aout: read_seg failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
}
else
printf("RS: load_aout: not loading text segment\n");
off += text_bytes;
r= read_seg(execi, off, proc_e, D, 0, data_bytes);
if (r != OK)
{
printf("RS: load_aout: read_seg failed: %d\n", r);
exec_restart(proc_e, r, execi->pc);
return r;
}
return OK;
}