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尝试修复

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This commit is contained in:
liankong
2025-03-30 19:56:04 +08:00
parent 877e4f9416
commit 40bada35c6
1 changed files with 16 additions and 28 deletions
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44
kernel/kpm/kpm.c
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@@ -887,39 +887,27 @@ static int kpm_move_module(struct kpm_module *mod, struct kpm_load_info *info)
printk(KERN_INFO "ARM64 KPM Loader: Final section addresses (aligned base=0x%px):\n", mod->start); printk(KERN_INFO "ARM64 KPM Loader: Final section addresses (aligned base=0x%px):\n", mod->start);
/* 遍历所有段并按对齐要求布局 */ for (int i = 1; i < info->ehdr->e_shnum; i++) {
for (i = 0; i < info->ehdr->e_shnum; i++) { void *dest;
shdr = &info->sechdrs[i]; const char *sname;
if (!(shdr->sh_flags & SHF_ALLOC)) Elf_Shdr *shdr = &info->sechdrs[i];
continue; if (!(shdr->sh_flags & SHF_ALLOC)) continue;
/* 按段对齐要求调整偏移 */ dest = mod->start + shdr->sh_entsize;
curr_offset = ALIGN(curr_offset, shdr->sh_addralign); sname = info->secstrings + shdr->sh_name;
dest = mod->start + curr_offset;
/* 复制段内容（NOBITS 段不复制） */ if (shdr->sh_type != SHT_NOBITS) memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
if (shdr->sh_type != SHT_NOBITS) {
memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
/* 刷新指令缓存（针对可执行段） */
if (shdr->sh_flags & SHF_EXECINSTR) {
flush_icache_range((unsigned long)dest,
(unsigned long)dest + shdr->sh_size);
}
}
/* 更新段头中的虚拟地址 */
shdr->sh_addr = (unsigned long)dest; shdr->sh_addr = (unsigned long)dest;
curr_offset += shdr->sh_size;
/* 定位关键函数指针 */ if (!mod->init && !strcmp(".kpm.init", sname)) mod->init = (mod_initcall_t *)dest;
secname = info->secstrings + shdr->sh_name;
if (!mod->init && !strcmp(".kpm.init", secname)) { if (!strcmp(".kpm.ctl0", sname)) mod->ctl0 = (mod_ctl0call_t *)dest;
mod->init = (typeof(mod->init))dest; if (!strcmp(".kpm.ctl1", sname)) mod->ctl1 = (mod_ctl1call_t *)dest;
printk(KERN_DEBUG "Found .kpm.init at 0x%px\n", dest);
} else if (!strcmp(".kpm.exit", secname)) { if (!mod->exit && !strcmp(".kpm.exit", sname)) mod->exit = (mod_exitcall_t *)dest;
mod->exit = (typeof(mod->exit))dest;
} if (!mod->info.base && !strcmp(".kpm.info", sname)) mod->info.base = (const char *)dest;
} }
/* 调整元数据指针（基于新基址） */ /* 调整元数据指针（基于新基址） */