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 1994-2003 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 #include <sys/archsystm.h>
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate extern int use_iflush;
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate /*
41*0Sstevel@tonic-gate * Check that an ELF header corresponds to this machine's
42*0Sstevel@tonic-gate * instruction set architecture. Used by kobj_load_module()
43*0Sstevel@tonic-gate * to not get confused by a misplaced driver or kernel module
44*0Sstevel@tonic-gate * built for a different ISA.
45*0Sstevel@tonic-gate */
46*0Sstevel@tonic-gate int
elf_mach_ok(Ehdr * h)47*0Sstevel@tonic-gate elf_mach_ok(Ehdr *h)
48*0Sstevel@tonic-gate {
49*0Sstevel@tonic-gate /*
50*0Sstevel@tonic-gate * XX64 This should eventually be folded into a v9-isa specific file
51*0Sstevel@tonic-gate */
52*0Sstevel@tonic-gate return (h->e_ident[EI_DATA] == ELFDATA2MSB &&
53*0Sstevel@tonic-gate (h->e_machine == EM_SPARCV9));
54*0Sstevel@tonic-gate }
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate /*
58*0Sstevel@tonic-gate * return non-zero for a bad-address
59*0Sstevel@tonic-gate */
60*0Sstevel@tonic-gate int
kobj_addrcheck(void * xmp,caddr_t adr)61*0Sstevel@tonic-gate kobj_addrcheck(void *xmp, caddr_t adr)
62*0Sstevel@tonic-gate {
63*0Sstevel@tonic-gate struct module *mp;
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate mp = (struct module *)xmp;
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate if ((adr >= mp->text && adr < mp->text + mp->text_size) ||
68*0Sstevel@tonic-gate (adr >= mp->data && adr < mp->data + mp->data_size))
69*0Sstevel@tonic-gate return (0); /* ok */
70*0Sstevel@tonic-gate if (mp->bss && adr >= (caddr_t)mp->bss &&
71*0Sstevel@tonic-gate adr < (caddr_t)mp->bss + mp->bss_size)
72*0Sstevel@tonic-gate return (0);
73*0Sstevel@tonic-gate return (1);
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate /*
77*0Sstevel@tonic-gate * Flush instruction cache after updating text
78*0Sstevel@tonic-gate */
79*0Sstevel@tonic-gate void
kobj_sync_instruction_memory(caddr_t addr,size_t len)80*0Sstevel@tonic-gate kobj_sync_instruction_memory(caddr_t addr, size_t len)
81*0Sstevel@tonic-gate {
82*0Sstevel@tonic-gate caddr_t eaddr = addr + len;
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate if (!use_iflush)
85*0Sstevel@tonic-gate return;
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate addr = (caddr_t)((uintptr_t)addr & -8l); /* sparc needs 8-byte align */
88*0Sstevel@tonic-gate
89*0Sstevel@tonic-gate while (addr < eaddr) {
90*0Sstevel@tonic-gate doflush(addr);
91*0Sstevel@tonic-gate addr += 8;
92*0Sstevel@tonic-gate }
93*0Sstevel@tonic-gate }
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate /*
96*0Sstevel@tonic-gate * Calculate memory image required for relocatable object.
97*0Sstevel@tonic-gate */
98*0Sstevel@tonic-gate /* ARGSUSED3 */
99*0Sstevel@tonic-gate int
get_progbits_size(struct module * mp,struct proginfo * tp,struct proginfo * dp,struct proginfo * sdp)100*0Sstevel@tonic-gate get_progbits_size(struct module *mp, struct proginfo *tp, struct proginfo *dp,
101*0Sstevel@tonic-gate struct proginfo *sdp)
102*0Sstevel@tonic-gate {
103*0Sstevel@tonic-gate struct proginfo *pp;
104*0Sstevel@tonic-gate uint_t shn;
105*0Sstevel@tonic-gate Shdr *shp;
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate /*
108*0Sstevel@tonic-gate * loop through sections to find out how much space we need
109*0Sstevel@tonic-gate * for text, data, (also bss that is already assigned)
110*0Sstevel@tonic-gate */
111*0Sstevel@tonic-gate for (shn = 1; shn < mp->hdr.e_shnum; shn++) {
112*0Sstevel@tonic-gate shp = (Shdr *)(mp->shdrs + shn * mp->hdr.e_shentsize);
113*0Sstevel@tonic-gate if (!(shp->sh_flags & SHF_ALLOC))
114*0Sstevel@tonic-gate continue;
115*0Sstevel@tonic-gate if (shp->sh_addr != 0) {
116*0Sstevel@tonic-gate _kobj_printf(ops,
117*0Sstevel@tonic-gate "%s non-zero sect addr in input file\n",
118*0Sstevel@tonic-gate mp->filename);
119*0Sstevel@tonic-gate return (-1);
120*0Sstevel@tonic-gate }
121*0Sstevel@tonic-gate pp = (shp->sh_flags & SHF_WRITE)? dp : tp;
122*0Sstevel@tonic-gate
123*0Sstevel@tonic-gate if (shp->sh_addralign > pp->align)
124*0Sstevel@tonic-gate pp->align = shp->sh_addralign;
125*0Sstevel@tonic-gate pp->size = ALIGN(pp->size, shp->sh_addralign);
126*0Sstevel@tonic-gate pp->size += ALIGN(shp->sh_size, 8);
127*0Sstevel@tonic-gate }
128*0Sstevel@tonic-gate tp->size = ALIGN(tp->size, 8);
129*0Sstevel@tonic-gate dp->size = ALIGN(dp->size, 8);
130*0Sstevel@tonic-gate return (0);
131*0Sstevel@tonic-gate }
132