1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate * Miscellaneous ISA-specific code.
31*0Sstevel@tonic-gate */
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate #include <sys/elf.h>
34*0Sstevel@tonic-gate #include <sys/kobj.h>
35*0Sstevel@tonic-gate #include <sys/kobj_impl.h>
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate /*
38*0Sstevel@tonic-gate * Check that an ELF header corresponds to this machine's
39*0Sstevel@tonic-gate * instruction set architecture. Used by kobj_load_module()
40*0Sstevel@tonic-gate * to not get confused by a misplaced driver or kernel module
41*0Sstevel@tonic-gate * built for a different ISA.
42*0Sstevel@tonic-gate */
43*0Sstevel@tonic-gate int
elf_mach_ok(Elf64_Ehdr * h)44*0Sstevel@tonic-gate elf_mach_ok(Elf64_Ehdr *h)
45*0Sstevel@tonic-gate {
46*0Sstevel@tonic-gate return ((h->e_ident[EI_DATA] == ELFDATA2LSB) &&
47*0Sstevel@tonic-gate (h->e_machine == EM_AMD64));
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate /*
51*0Sstevel@tonic-gate * return non-zero for a bad address
52*0Sstevel@tonic-gate */
53*0Sstevel@tonic-gate int
kobj_addrcheck(void * xmp,caddr_t adr)54*0Sstevel@tonic-gate kobj_addrcheck(void *xmp, caddr_t adr)
55*0Sstevel@tonic-gate {
56*0Sstevel@tonic-gate struct module *mp;
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate mp = (struct module *)xmp;
59*0Sstevel@tonic-gate
60*0Sstevel@tonic-gate if ((adr >= mp->text && adr < mp->text + mp->text_size) ||
61*0Sstevel@tonic-gate (adr >= mp->data && adr < mp->data + mp->data_size))
62*0Sstevel@tonic-gate return (0); /* ok */
63*0Sstevel@tonic-gate if (mp->bss && adr >= (caddr_t)mp->bss &&
64*0Sstevel@tonic-gate adr < (caddr_t)mp->bss + mp->bss_size)
65*0Sstevel@tonic-gate return (0);
66*0Sstevel@tonic-gate return (1);
67*0Sstevel@tonic-gate }
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate /*
71*0Sstevel@tonic-gate * Flush instruction cache after updating text
72*0Sstevel@tonic-gate * This is a nop for this machine arch.
73*0Sstevel@tonic-gate */
74*0Sstevel@tonic-gate /*ARGSUSED*/
75*0Sstevel@tonic-gate void
kobj_sync_instruction_memory(caddr_t addr,size_t len)76*0Sstevel@tonic-gate kobj_sync_instruction_memory(caddr_t addr, size_t len)
77*0Sstevel@tonic-gate {}
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate /*
80*0Sstevel@tonic-gate * Calculate memory image required for relocable object.
81*0Sstevel@tonic-gate */
82*0Sstevel@tonic-gate /* ARGSUSED3 */
83*0Sstevel@tonic-gate int
get_progbits_size(struct module * mp,struct proginfo * tp,struct proginfo * dp,struct proginfo * sdp)84*0Sstevel@tonic-gate get_progbits_size(struct module *mp, struct proginfo *tp, struct proginfo *dp,
85*0Sstevel@tonic-gate struct proginfo *sdp)
86*0Sstevel@tonic-gate {
87*0Sstevel@tonic-gate struct proginfo *pp;
88*0Sstevel@tonic-gate uint_t shn;
89*0Sstevel@tonic-gate Shdr *shp;
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate /*
92*0Sstevel@tonic-gate * loop through sections to find out how much space we need
93*0Sstevel@tonic-gate * for text, data, (also bss that is already assigned)
94*0Sstevel@tonic-gate */
95*0Sstevel@tonic-gate for (shn = 1; shn < mp->hdr.e_shnum; shn++) {
96*0Sstevel@tonic-gate shp = (Shdr *)(mp->shdrs + shn * mp->hdr.e_shentsize);
97*0Sstevel@tonic-gate if (!(shp->sh_flags & SHF_ALLOC))
98*0Sstevel@tonic-gate continue;
99*0Sstevel@tonic-gate if (shp->sh_addr != 0) {
100*0Sstevel@tonic-gate _kobj_printf(ops,
101*0Sstevel@tonic-gate "%s non-zero sect addr in input file\n",
102*0Sstevel@tonic-gate mp->filename);
103*0Sstevel@tonic-gate return (-1);
104*0Sstevel@tonic-gate }
105*0Sstevel@tonic-gate pp = (shp->sh_flags & SHF_WRITE)? dp : tp;
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate if (shp->sh_addralign > pp->align)
108*0Sstevel@tonic-gate pp->align = shp->sh_addralign;
109*0Sstevel@tonic-gate pp->size = ALIGN(pp->size, shp->sh_addralign);
110*0Sstevel@tonic-gate pp->size += ALIGN(shp->sh_size, 8);
111*0Sstevel@tonic-gate }
112*0Sstevel@tonic-gate tp->size = ALIGN(tp->size, 8);
113*0Sstevel@tonic-gate dp->size = ALIGN(dp->size, 8);
114*0Sstevel@tonic-gate return (0);
115*0Sstevel@tonic-gate }
116