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尝试修复

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This commit is contained in:
liankong
2025-03-29 22:32:39 +08:00
parent 72b205fa5e
commit f11d57d2bd
2 changed files with 33 additions and 18 deletions
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33
kernel/kpm/kpm.c
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@@ -598,36 +598,47 @@ static int kpm_setup_load_info(struct kpm_load_info *info)
* KPM 模块加载主流程
*----------------------------------------------------------*/
/* 注意：接口名称改为 kpm_load_module，避免与内核原有 load_module 冲突 */
long kpm_load_module(const void *data, int len, const char *args, const char *event, void *__user reserved)
long kpm_load_module(const void *data, int len, const char *args,
const char *event, void *__user reserved)
{
struct kpm_load_info load_info = { .hdr = data, .len = len };
long rc = 0;
struct kpm_module *mod;
/* 检查 ELF 头 */
rc = kpm_elf_header_check(&load_info);
if (rc)
goto out;
rc = kpm_setup_load_info(&load_info);
if (rc)
goto out;
if (find_sec_num(&load_info, ".kpm.init") == -1 || find_sec_num(&load_info, ".kpm.exit") == -1) {
/* 检查必须存在的模块初始化/退出段 */
if (find_sec_num(&load_info, ".kpm.init") == -1 ||
find_sec_num(&load_info, ".kpm.exit") == -1) {
printk(KERN_ERR "ARM64 KPM Loader: Required sections missing\n");
rc = -ENOEXEC;
goto out;
}
/* 检查模块是否已经加载 */
if (find_module(load_info.info.name)) {
printk(KERN_ERR "ARM64 KPM Loader: Module %s already loaded\n", load_info.info.name);
printk(KERN_ERR "ARM64 KPM Loader: Module %s already loaded\n",
load_info.info.name);
rc = -EEXIST;
goto out;
}
mod = vmalloc(sizeof(struct kpm_module));
if (!mod)
return -ENOMEM;
if (!mod) {
rc = -ENOMEM;
goto out;
}
memset(mod, 0, sizeof(struct kpm_module));
if (args) {
mod->args = (typeof(mod->args)) vmalloc(strlen(args) + 1);
mod->args = vmalloc(strlen(args) + 1);
if (!mod->args) {
rc = -ENOMEM;
goto free_mod;
@@ -648,17 +659,21 @@ long kpm_load_module(const void *data, int len, const char *args, const char *ev
if (rc)
goto free_mod;
flush_icache_all();
/* 替换 flush_icache_all() 为 flush_icache_range() */
flush_icache_range((unsigned long)mod->start,
(unsigned long)mod->start + mod->size);
rc = mod->init(mod->args, event, reserved);
if (!rc) {
printk(KERN_INFO "ARM64 KPM Loader: Module [%s] loaded successfully with args [%s]\n", mod->info.name, args ? args : "");
printk(KERN_INFO "ARM64 KPM Loader: Module [%s] loaded successfully with args [%s]\n",
mod->info.name, args ? args : "");
spin_lock(&kpm_module_lock);
list_add_tail(&mod->list, &kpm_module_list);
spin_unlock(&kpm_module_lock);
goto out;
} else {
printk(KERN_ERR "ARM64 KPM Loader: Module [%s] init failed with error %ld\n", mod->info.name, rc);
printk(KERN_ERR "ARM64 KPM Loader: Module [%s] init failed with error %ld\n",
mod->info.name, rc);
mod->exit(reserved);
}
free_mod: