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根据KP修复

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This commit is contained in:
liankong
2025-03-30 20:29:43 +08:00
parent 3db338da3e
commit e9f1631b06
1 changed files with 15 additions and 7 deletions
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18
kernel/kpm/kpm.c
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@@ -817,23 +817,29 @@ static void kpm_layout_symtab(struct kpm_module *mod, struct kpm_load_info *info
unsigned int i, nsrc, ndst; unsigned int i, nsrc, ndst;
unsigned int strtab_size = 1; unsigned int strtab_size = 1;
/* Put symbol section at end of module. */
symsect->sh_flags |= SHF_ALLOC; symsect->sh_flags |= SHF_ALLOC;
symsect->sh_entsize = kpm_get_offset2(mod, &mod->size, symsect, info->index.sym); symsect->sh_entsize = kpm_get_offset2(mod, &mod->size, symsect, info->index.sym);
src = (Elf64_Sym *)((char *)info->hdr + symsect->sh_offset); src = (void *)info->hdr + symsect->sh_offset;
nsrc = symsect->sh_size / sizeof(Elf64_Sym); nsrc = symsect->sh_size / sizeof(*src);
/* strtab always starts with a nul, so offset 0 is the empty string. */
strtab_size = 1;
/* Compute total space required for the core symbols' strtab. */
for (ndst = i = 0; i < nsrc; i++) { for (ndst = i = 0; i < nsrc; i++) {
if (i == 0 || kpm_is_core_symbol(src + i, info->sechdrs, info->ehdr->e_shnum)) { if (i == 0 || is_core_symbol(src + i, info->sechdrs, info->hdr->e_shnum)) {
strtab_size += strlen(info->strtab + src[i].st_name) + 1; strtab_size += strlen(&info->strtab[src[i].st_name]) + 1;
ndst++; ndst++;
} }
} }
info->symoffs = ALIGN(mod->size, symsect->sh_addralign ? symsect->sh_addralign : 1); /* Append room for core symbols at end. */
info->symoffs = ALIGN(mod->size, symsect->sh_addralign ?: 1);
info->stroffs = mod->size = info->symoffs + ndst * sizeof(Elf64_Sym); info->stroffs = mod->size = info->symoffs + ndst * sizeof(Elf64_Sym);
mod->size += strtab_size; mod->size += strtab_size;
/* Put string table section at end of module. */
strsect->sh_flags |= SHF_ALLOC; strsect->sh_flags |= SHF_ALLOC;
strsect->sh_entsize = kpm_get_offset2(mod, &mod->size, strsect, info->index.str); strsect->sh_entsize = kpm_get_offset2(mod, &mod->size, strsect, info->index.str);
} }
@@ -1066,6 +1072,8 @@ long kpm_load_module(const void *data, int len, const char *args,
(unsigned long)mod->start + mod->size); (unsigned long)mod->start + mod->size);
flush_icache_all(); flush_icache_all();
printk(KERN_INFO "ARM64 KPM Loader: Module all load action finish, prepare call init.");
rc = (*mod->init)(mod->args, event, reserved); rc = (*mod->init)(mod->args, event, reserved);
if (!rc) { if (!rc) {
printk(KERN_INFO "ARM64 KPM Loader: Module [%s] loaded successfully with args [%s]\n", printk(KERN_INFO "ARM64 KPM Loader: Module [%s] loaded successfully with args [%s]\n",