[mirror_ubuntu-eoan-kernel.git] / arch / blackfin / kernel / module.c

/*
 * File:         arch/blackfin/kernel/module.c
 * Based on:
 * Author:
 *
 * Created:
 * Description:
 *
 * Modified:
 *               Copyright 2004-2006 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#define pr_fmt(fmt) "module %s: " fmt

#include <linux/moduleloader.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <asm/dma.h>
#include <asm/cacheflush.h>
#include <asm/uaccess.h>

void *module_alloc(unsigned long size)
{
	if (size == 0)
		return NULL;
	return vmalloc(size);
}

/* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region)
{
	vfree(module_region);
}

/* Transfer the section to the L1 memory */
int
module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
			  char *secstrings, struct module *mod)
{
	/*
	 * XXX: sechdrs are vmalloced in kernel/module.c
	 * and would be vfreed just after module is loaded,
	 * so we hack to keep the only information we needed
	 * in mod->arch to correctly free L1 I/D sram later.
	 * NOTE: this breaks the semantic of mod->arch structure.
	 */
	Elf_Shdr *s, *sechdrs_end = sechdrs + hdr->e_shnum;
	void *dest;

	for (s = sechdrs; s < sechdrs_end; ++s) {
		const char *shname = secstrings + s->sh_name;

		if (s->sh_size == 0)
			continue;

		if (!strcmp(".l1.text", shname) ||
		    (!strcmp(".text", shname) &&
		     (hdr->e_flags & EF_BFIN_CODE_IN_L1))) {

			dest = l1_inst_sram_alloc(s->sh_size);
			mod->arch.text_l1 = dest;
			if (dest == NULL) {
				pr_err("L1 inst memory allocation failed\n",
					mod->name);
				return -1;
			}
			dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);

		} else if (!strcmp(".l1.data", shname) ||
		           (!strcmp(".data", shname) &&
		            (hdr->e_flags & EF_BFIN_DATA_IN_L1))) {

			dest = l1_data_sram_alloc(s->sh_size);
			mod->arch.data_a_l1 = dest;
			if (dest == NULL) {
				pr_err("L1 data memory allocation failed\n",
					mod->name);
				return -1;
			}
			memcpy(dest, (void *)s->sh_addr, s->sh_size);

		} else if (!strcmp(".l1.bss", shname) ||
		           (!strcmp(".bss", shname) &&
		            (hdr->e_flags & EF_BFIN_DATA_IN_L1))) {

			dest = l1_data_sram_zalloc(s->sh_size);
			mod->arch.bss_a_l1 = dest;
			if (dest == NULL) {
				pr_err("L1 data memory allocation failed\n",
					mod->name);
				return -1;
			}

		} else if (!strcmp(".l1.data.B", shname)) {

			dest = l1_data_B_sram_alloc(s->sh_size);
			mod->arch.data_b_l1 = dest;
			if (dest == NULL) {
				pr_err("L1 data memory allocation failed\n",
					mod->name);
				return -1;
			}
			memcpy(dest, (void *)s->sh_addr, s->sh_size);

		} else if (!strcmp(".l1.bss.B", shname)) {

			dest = l1_data_B_sram_alloc(s->sh_size);
			mod->arch.bss_b_l1 = dest;
			if (dest == NULL) {
				pr_err("L1 data memory allocation failed\n",
					mod->name);
				return -1;
			}
			memset(dest, 0, s->sh_size);

		} else if (!strcmp(".l2.text", shname) ||
		           (!strcmp(".text", shname) &&
		            (hdr->e_flags & EF_BFIN_CODE_IN_L2))) {

			dest = l2_sram_alloc(s->sh_size);
			mod->arch.text_l2 = dest;
			if (dest == NULL) {
				pr_err("L2 SRAM allocation failed\n",
					mod->name);
				return -1;
			}
			memcpy(dest, (void *)s->sh_addr, s->sh_size);

		} else if (!strcmp(".l2.data", shname) ||
		           (!strcmp(".data", shname) &&
		            (hdr->e_flags & EF_BFIN_DATA_IN_L2))) {

			dest = l2_sram_alloc(s->sh_size);
			mod->arch.data_l2 = dest;
			if (dest == NULL) {
				pr_err("L2 SRAM allocation failed\n",
					mod->name);
				return -1;
			}
			memcpy(dest, (void *)s->sh_addr, s->sh_size);

		} else if (!strcmp(".l2.bss", shname) ||
		           (!strcmp(".bss", shname) &&
		            (hdr->e_flags & EF_BFIN_DATA_IN_L2))) {

			dest = l2_sram_zalloc(s->sh_size);
			mod->arch.bss_l2 = dest;
			if (dest == NULL) {
				pr_err("L2 SRAM allocation failed\n",
					mod->name);
				return -1;
			}

		} else
			continue;

		s->sh_flags &= ~SHF_ALLOC;
		s->sh_addr = (unsigned long)dest;
	}

	return 0;
}

int
apply_relocate(Elf_Shdr * sechdrs, const char *strtab,
	       unsigned int symindex, unsigned int relsec, struct module *me)
{
	pr_err(".rel unsupported\n", me->name);
	return -ENOEXEC;
}

/*************************************************************************/
/* FUNCTION : apply_relocate_add                                         */
/* ABSTRACT : Blackfin specific relocation handling for the loadable     */
/*            modules. Modules are expected to be .o files.              */
/*            Arithmetic relocations are handled.                        */
/*            We do not expect LSETUP to be split and hence is not       */
/*            handled.                                                   */
/*            R_BFIN_BYTE and R_BFIN_BYTE2 are also not handled as the   */
/*            gas does not generate it.                                  */
/*************************************************************************/
int
apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
		   unsigned int symindex, unsigned int relsec,
		   struct module *mod)
{
	unsigned int i;
	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
	Elf32_Sym *sym;
	unsigned long location, value, size;

	pr_debug("applying relocate section %u to %u\n", mod->name,
		relsec, sechdrs[relsec].sh_info);

	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
		/* This is where to make the change */
		location = sechdrs[sechdrs[relsec].sh_info].sh_addr +
		           rel[i].r_offset;

		/* This is the symbol it is referring to. Note that all
		   undefined symbols have been resolved. */
		sym = (Elf32_Sym *) sechdrs[symindex].sh_addr
		    + ELF32_R_SYM(rel[i].r_info);
		value = sym->st_value;
		value += rel[i].r_addend;

#ifdef CONFIG_SMP
		if (location >= COREB_L1_DATA_A_START) {
			pr_err("cannot relocate in L1: %u (SMP kernel)",
				mod->name, ELF32_R_TYPE(rel[i].r_info));
			return -ENOEXEC;
		}
#endif

		pr_debug("location is %lx, value is %lx type is %d\n",
			mod->name, location, value, ELF32_R_TYPE(rel[i].r_info));

		switch (ELF32_R_TYPE(rel[i].r_info)) {

		case R_BFIN_HUIMM16:
			value >>= 16;
		case R_BFIN_LUIMM16:
		case R_BFIN_RIMM16:
			size = 2;
			break;
		case R_BFIN_BYTE4_DATA:
			size = 4;
			break;

		case R_BFIN_PCREL24:
		case R_BFIN_PCREL24_JUMP_L:
		case R_BFIN_PCREL12_JUMP:
		case R_BFIN_PCREL12_JUMP_S:
		case R_BFIN_PCREL10:
			pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
				mod->name, ELF32_R_TYPE(rel[i].r_info));
			return -ENOEXEC;

		default:
			pr_err("unknown relocation: %u\n", mod->name,
				ELF32_R_TYPE(rel[i].r_info));
			return -ENOEXEC;
		}

		switch (bfin_mem_access_type(location, size)) {
		case BFIN_MEM_ACCESS_CORE:
		case BFIN_MEM_ACCESS_CORE_ONLY:
			memcpy((void *)location, &value, size);
			break;
		case BFIN_MEM_ACCESS_DMA:
			dma_memcpy((void *)location, &value, size);
			break;
		case BFIN_MEM_ACCESS_ITEST:
			isram_memcpy((void *)location, &value, size);
			break;
		default:
			pr_err("invalid relocation for %#lx\n",
				mod->name, location);
			return -ENOEXEC;
		}
	}

	return 0;
}

int
module_finalize(const Elf_Ehdr * hdr,
		const Elf_Shdr * sechdrs, struct module *mod)
{
	unsigned int i, strindex = 0, symindex = 0;
	char *secstrings;
	long err = 0;

	secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;

	for (i = 1; i < hdr->e_shnum; i++) {
		/* Internal symbols and strings. */
		if (sechdrs[i].sh_type == SHT_SYMTAB) {
			symindex = i;
			strindex = sechdrs[i].sh_link;
		}
	}

	for (i = 1; i < hdr->e_shnum; i++) {
		const char *strtab = (char *)sechdrs[strindex].sh_addr;
		unsigned int info = sechdrs[i].sh_info;
		const char *shname = secstrings + sechdrs[i].sh_name;

		/* Not a valid relocation section? */
		if (info >= hdr->e_shnum)
			continue;

		/* Only support RELA relocation types */
		if (sechdrs[i].sh_type != SHT_RELA)
			continue;

		if (!strcmp(".rela.l2.text", shname) ||
		    !strcmp(".rela.l1.text", shname) ||
		    (!strcmp(".rela.text", shname) &&
			 (hdr->e_flags & (EF_BFIN_CODE_IN_L1 | EF_BFIN_CODE_IN_L2)))) {

			err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
					   symindex, i, mod);
			if (err < 0)
				return -ENOEXEC;
		}
	}

	return 0;
}

void module_arch_cleanup(struct module *mod)
{
	l1_inst_sram_free(mod->arch.text_l1);
	l1_data_A_sram_free(mod->arch.data_a_l1);
	l1_data_A_sram_free(mod->arch.bss_a_l1);
	l1_data_B_sram_free(mod->arch.data_b_l1);
	l1_data_B_sram_free(mod->arch.bss_b_l1);
	l2_sram_free(mod->arch.text_l2);
	l2_sram_free(mod->arch.data_l2);
	l2_sram_free(mod->arch.bss_l2);
}
Commit	Line	Data
1394f032 BW	1	/*
	2	* File: arch/blackfin/kernel/module.c
	3	* Based on:
	4	* Author:
	5	*
	6	* Created:
	7	* Description:
	8	*
	9	* Modified:
	10	* Copyright 2004-2006 Analog Devices Inc.
	11	*
	12	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	13	*
	14	* This program is free software; you can redistribute it and/or modify
	15	* it under the terms of the GNU General Public License as published by
	16	* the Free Software Foundation; either version 2 of the License, or
	17	* (at your option) any later version.
	18	*
	19	* This program is distributed in the hope that it will be useful,
	20	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	* GNU General Public License for more details.
	23	*
	24	* You should have received a copy of the GNU General Public License
	25	* along with this program; if not, see the file COPYING, or write
	26	* to the Free Software Foundation, Inc.,
	27	* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	28	*/
	29
dc6b1ac9	30	#define pr_fmt(fmt) "module %s: " fmt
1394f032 BW	31
	32	#include <linux/moduleloader.h>
	33	#include <linux/elf.h>
	34	#include <linux/vmalloc.h>
	35	#include <linux/fs.h>
	36	#include <linux/string.h>
	37	#include <linux/kernel.h>
	38	#include <asm/dma.h>
	39	#include <asm/cacheflush.h>
a7690940	40	#include <asm/uaccess.h>
1394f032	41
1394f032 BW	42	void *module_alloc(unsigned long size)
	43	{
	44	if (size == 0)
	45	return NULL;
	46	return vmalloc(size);
	47	}
	48
	49	/* Free memory returned from module_alloc */
	50	void module_free(struct module mod, void module_region)
	51	{
	52	vfree(module_region);
	53	}
	54
	55	/* Transfer the section to the L1 memory */
	56	int
459fec90	57	module_frob_arch_sections(Elf_Ehdr hdr, Elf_Shdr sechdrs,
1394f032 BW	58	char secstrings, struct module mod)
1394f032 BW	59	{
96a87e2f MF	60	/*
	61	* XXX: sechdrs are vmalloced in kernel/module.c
	62	* and would be vfreed just after module is loaded,
	63	* so we hack to keep the only information we needed
	64	* in mod->arch to correctly free L1 I/D sram later.
	65	* NOTE: this breaks the semantic of mod->arch structure.
	66	*/
1394f032	67	Elf_Shdr s, sechdrs_end = sechdrs + hdr->e_shnum;
459fec90	68	void *dest;
1394f032 BW	69
1394f032 BW	70	for (s = sechdrs; s < sechdrs_end; ++s) {
459fec90 MF	71	const char *shname = secstrings + s->sh_name;
	72
	73	if (s->sh_size == 0)
	74	continue;
	75
	76	if (!strcmp(".l1.text", shname) \|\|
	77	(!strcmp(".text", shname) &&
	78	(hdr->e_flags & EF_BFIN_CODE_IN_L1))) {
	79
1394f032	80	dest = l1_inst_sram_alloc(s->sh_size);
96a87e2f	81	mod->arch.text_l1 = dest;
1394f032	82	if (dest == NULL) {
dc6b1ac9 MF	83	pr_err("L1 inst memory allocation failed\n",
dc6b1ac9 MF	84	mod->name);
1394f032 BW	85	return -1;
	86	}
	87	dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);
459fec90 MF	88
	89	} else if (!strcmp(".l1.data", shname) \|\|
	90	(!strcmp(".data", shname) &&
	91	(hdr->e_flags & EF_BFIN_DATA_IN_L1))) {
	92
1394f032	93	dest = l1_data_sram_alloc(s->sh_size);
96a87e2f	94	mod->arch.data_a_l1 = dest;
1394f032	95	if (dest == NULL) {
dc6b1ac9	96	pr_err("L1 data memory allocation failed\n",
1394f032 BW	97	mod->name);
	98	return -1;
	99	}
	100	memcpy(dest, (void *)s->sh_addr, s->sh_size);
459fec90 MF	101
	102	} else if (!strcmp(".l1.bss", shname) \|\|
	103	(!strcmp(".bss", shname) &&
	104	(hdr->e_flags & EF_BFIN_DATA_IN_L1))) {
	105
70deca9f	106	dest = l1_data_sram_zalloc(s->sh_size);
96a87e2f	107	mod->arch.bss_a_l1 = dest;
1394f032	108	if (dest == NULL) {
dc6b1ac9	109	pr_err("L1 data memory allocation failed\n",
1394f032 BW	110	mod->name);
	111	return -1;
	112	}
459fec90 MF	113
	114	} else if (!strcmp(".l1.data.B", shname)) {
	115
1394f032	116	dest = l1_data_B_sram_alloc(s->sh_size);
96a87e2f	117	mod->arch.data_b_l1 = dest;
1394f032	118	if (dest == NULL) {
dc6b1ac9	119	pr_err("L1 data memory allocation failed\n",
1394f032 BW	120	mod->name);
	121	return -1;
	122	}
	123	memcpy(dest, (void *)s->sh_addr, s->sh_size);
459fec90 MF	124
	125	} else if (!strcmp(".l1.bss.B", shname)) {
	126
1394f032	127	dest = l1_data_B_sram_alloc(s->sh_size);
96a87e2f	128	mod->arch.bss_b_l1 = dest;
1394f032	129	if (dest == NULL) {
dc6b1ac9	130	pr_err("L1 data memory allocation failed\n",
1394f032 BW	131	mod->name);
	132	return -1;
	133	}
	134	memset(dest, 0, s->sh_size);
459fec90 MF	135
	136	} else if (!strcmp(".l2.text", shname) \|\|
	137	(!strcmp(".text", shname) &&
	138	(hdr->e_flags & EF_BFIN_CODE_IN_L2))) {
	139
262c3825 SZ	140	dest = l2_sram_alloc(s->sh_size);
	141	mod->arch.text_l2 = dest;
	142	if (dest == NULL) {
dc6b1ac9 MF	143	pr_err("L2 SRAM allocation failed\n",
dc6b1ac9 MF	144	mod->name);
262c3825 SZ	145	return -1;
	146	}
	147	memcpy(dest, (void *)s->sh_addr, s->sh_size);
459fec90 MF	148
	149	} else if (!strcmp(".l2.data", shname) \|\|
	150	(!strcmp(".data", shname) &&
	151	(hdr->e_flags & EF_BFIN_DATA_IN_L2))) {
	152
262c3825 SZ	153	dest = l2_sram_alloc(s->sh_size);
	154	mod->arch.data_l2 = dest;
	155	if (dest == NULL) {
dc6b1ac9	156	pr_err("L2 SRAM allocation failed\n",
262c3825 SZ	157	mod->name);
	158	return -1;
	159	}
	160	memcpy(dest, (void *)s->sh_addr, s->sh_size);
459fec90 MF	161
	162	} else if (!strcmp(".l2.bss", shname) \|\|
	163	(!strcmp(".bss", shname) &&
	164	(hdr->e_flags & EF_BFIN_DATA_IN_L2))) {
	165
70deca9f	166	dest = l2_sram_zalloc(s->sh_size);
262c3825 SZ	167	mod->arch.bss_l2 = dest;
262c3825 SZ	168	if (dest == NULL) {
dc6b1ac9	169	pr_err("L2 SRAM allocation failed\n",
262c3825 SZ	170	mod->name);
	171	return -1;
	172	}
459fec90 MF	173
	174	} else
	175	continue;
	176
	177	s->sh_flags &= ~SHF_ALLOC;
	178	s->sh_addr = (unsigned long)dest;
1394f032	179	}
459fec90	180
1394f032 BW	181	return 0;
	182	}
	183
	184	int
	185	apply_relocate(Elf_Shdr * sechdrs, const char *strtab,
	186	unsigned int symindex, unsigned int relsec, struct module *me)
	187	{
dc6b1ac9	188	pr_err(".rel unsupported\n", me->name);
1394f032 BW	189	return -ENOEXEC;
	190	}
	191
	192	/*************************************************************************/
	193	/* FUNCTION : apply_relocate_add */
	194	/* ABSTRACT : Blackfin specific relocation handling for the loadable */
	195	/* modules. Modules are expected to be .o files. */
	196	/* Arithmetic relocations are handled. */
	197	/* We do not expect LSETUP to be split and hence is not */
	198	/* handled. */
595d681f MF	199	/* R_BFIN_BYTE and R_BFIN_BYTE2 are also not handled as the */
595d681f MF	200	/* gas does not generate it. */
1394f032 BW	201	/*************************************************************************/
1394f032 BW	202	int
a7690940	203	apply_relocate_add(Elf_Shdr sechdrs, const char strtab,
1394f032 BW	204	unsigned int symindex, unsigned int relsec,
	205	struct module *mod)
	206	{
	207	unsigned int i;
1394f032 BW	208	Elf32_Rela rel = (void )sechdrs[relsec].sh_addr;
1394f032 BW	209	Elf32_Sym *sym;
a7690940	210	unsigned long location, value, size;
1394f032	211
dc6b1ac9 MF	212	pr_debug("applying relocate section %u to %u\n", mod->name,
dc6b1ac9 MF	213	relsec, sechdrs[relsec].sh_info);
a7690940	214
1394f032 BW	215	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
1394f032 BW	216	/* This is where to make the change */
a7690940 MF	217	location = sechdrs[sechdrs[relsec].sh_info].sh_addr +
	218	rel[i].r_offset;
	219
1394f032 BW	220	/* This is the symbol it is referring to. Note that all
	221	undefined symbols have been resolved. */
	222	sym = (Elf32_Sym *) sechdrs[symindex].sh_addr
	223	+ ELF32_R_SYM(rel[i].r_info);
d1a85305	224	value = sym->st_value;
1394f032	225	value += rel[i].r_addend;
dc6b1ac9	226
8f65873e	227	#ifdef CONFIG_SMP
a7690940	228	if (location >= COREB_L1_DATA_A_START) {
dc6b1ac9 MF	229	pr_err("cannot relocate in L1: %u (SMP kernel)",
dc6b1ac9 MF	230	mod->name, ELF32_R_TYPE(rel[i].r_info));
8f65873e GY	231	return -ENOEXEC;
	232	}
	233	#endif
dc6b1ac9	234
a7690940 MF	235	pr_debug("location is %lx, value is %lx type is %d\n",
a7690940 MF	236	mod->name, location, value, ELF32_R_TYPE(rel[i].r_info));
dc6b1ac9	237
1394f032 BW	238	switch (ELF32_R_TYPE(rel[i].r_info)) {
1394f032 BW	239
595d681f	240	case R_BFIN_HUIMM16:
a7690940 MF	241	value >>= 16;
a7690940 MF	242	case R_BFIN_LUIMM16:
595d681f	243	case R_BFIN_RIMM16:
a7690940	244	size = 2;
1394f032	245	break;
595d681f	246	case R_BFIN_BYTE4_DATA:
a7690940	247	size = 4;
1394f032	248	break;
a7690940	249
22532578 RG	250	case R_BFIN_PCREL24:
	251	case R_BFIN_PCREL24_JUMP_L:
	252	case R_BFIN_PCREL12_JUMP:
	253	case R_BFIN_PCREL12_JUMP_S:
	254	case R_BFIN_PCREL10:
dc6b1ac9	255	pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
22532578 RG	256	mod->name, ELF32_R_TYPE(rel[i].r_info));
22532578 RG	257	return -ENOEXEC;
a7690940	258
1394f032	259	default:
dc6b1ac9 MF	260	pr_err("unknown relocation: %u\n", mod->name,
dc6b1ac9 MF	261	ELF32_R_TYPE(rel[i].r_info));
1394f032 BW	262	return -ENOEXEC;
1394f032 BW	263	}
a7690940 MF	264
	265	switch (bfin_mem_access_type(location, size)) {
	266	case BFIN_MEM_ACCESS_CORE:
	267	case BFIN_MEM_ACCESS_CORE_ONLY:
	268	memcpy((void *)location, &value, size);
	269	break;
	270	case BFIN_MEM_ACCESS_DMA:
	271	dma_memcpy((void *)location, &value, size);
	272	break;
	273	case BFIN_MEM_ACCESS_ITEST:
	274	isram_memcpy((void *)location, &value, size);
	275	break;
	276	default:
	277	pr_err("invalid relocation for %#lx\n",
	278	mod->name, location);
	279	return -ENOEXEC;
	280	}
1394f032	281	}
a7690940	282
1394f032 BW	283	return 0;
	284	}
	285
	286	int
	287	module_finalize(const Elf_Ehdr * hdr,
	288	const Elf_Shdr * sechdrs, struct module *mod)
	289	{
	290	unsigned int i, strindex = 0, symindex = 0;
	291	char *secstrings;
8f65873e	292	long err = 0;
1394f032 BW	293
	294	secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
	295
	296	for (i = 1; i < hdr->e_shnum; i++) {
	297	/* Internal symbols and strings. */
	298	if (sechdrs[i].sh_type == SHT_SYMTAB) {
	299	symindex = i;
	300	strindex = sechdrs[i].sh_link;
	301	}
	302	}
	303
	304	for (i = 1; i < hdr->e_shnum; i++) {
	305	const char strtab = (char )sechdrs[strindex].sh_addr;
	306	unsigned int info = sechdrs[i].sh_info;
459fec90	307	const char *shname = secstrings + sechdrs[i].sh_name;
1394f032 BW	308
	309	/* Not a valid relocation section? */
	310	if (info >= hdr->e_shnum)
	311	continue;
	312
459fec90 MF	313	/* Only support RELA relocation types */
	314	if (sechdrs[i].sh_type != SHT_RELA)
	315	continue;
	316
	317	if (!strcmp(".rela.l2.text", shname) \|\|
	318	!strcmp(".rela.l1.text", shname) \|\|
	319	(!strcmp(".rela.text", shname) &&
	320	(hdr->e_flags & (EF_BFIN_CODE_IN_L1 \| EF_BFIN_CODE_IN_L2)))) {
	321
8f65873e	322	err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
1394f032	323	symindex, i, mod);
8f65873e GY	324	if (err < 0)
8f65873e GY	325	return -ENOEXEC;
1394f032 BW	326	}
1394f032 BW	327	}
459fec90	328
1394f032 BW	329	return 0;
	330	}
	331
	332	void module_arch_cleanup(struct module *mod)
	333	{
262c3825 SZ	334	l1_inst_sram_free(mod->arch.text_l1);
	335	l1_data_A_sram_free(mod->arch.data_a_l1);
	336	l1_data_A_sram_free(mod->arch.bss_a_l1);
	337	l1_data_B_sram_free(mod->arch.data_b_l1);
	338	l1_data_B_sram_free(mod->arch.bss_b_l1);
	339	l2_sram_free(mod->arch.text_l2);
	340	l2_sram_free(mod->arch.data_l2);
	341	l2_sram_free(mod->arch.bss_l2);
1394f032	342	}