diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 12:34:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 12:34:08 -0700 |
| commit | cd9b44f90763c3367e8dd0601849ffb028e8ba52 (patch) | |
| tree | d1da0c2d49e3622fe51584a154ab383b3e783c1b /kernel/module.c | |
| parent | df2def49c57b4146520a1f4ca37bc3f494e2cd67 (diff) | |
| parent | 2a9d6481004215da8e93edb588cf448f2af80303 (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
- the rest of MM
- procfs updates
- various misc things
- more y2038 fixes
- get_maintainer updates
- lib/ updates
- checkpatch updates
- various epoll updates
- autofs updates
- hfsplus
- some reiserfs work
- fatfs updates
- signal.c cleanups
- ipc/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (166 commits)
ipc/util.c: update return value of ipc_getref from int to bool
ipc/util.c: further variable name cleanups
ipc: simplify ipc initialization
ipc: get rid of ids->tables_initialized hack
lib/rhashtable: guarantee initial hashtable allocation
lib/rhashtable: simplify bucket_table_alloc()
ipc: drop ipc_lock()
ipc/util.c: correct comment in ipc_obtain_object_check
ipc: rename ipcctl_pre_down_nolock()
ipc/util.c: use ipc_rcu_putref() for failues in ipc_addid()
ipc: reorganize initialization of kern_ipc_perm.seq
ipc: compute kern_ipc_perm.id under the ipc lock
init/Kconfig: remove EXPERT from CHECKPOINT_RESTORE
fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp
adfs: use timespec64 for time conversion
kernel/sysctl.c: fix typos in comments
drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md
fork: don't copy inconsistent signal handler state to child
signal: make get_signal() return bool
signal: make sigkill_pending() return bool
...
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/kernel/module.c b/kernel/module.c index b046a32520d8..6746c85511fe 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -529,12 +529,30 @@ static bool check_symbol(const struct symsearch *syms, return true; } +static unsigned long kernel_symbol_value(const struct kernel_symbol *sym) +{ +#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS + return (unsigned long)offset_to_ptr(&sym->value_offset); +#else + return sym->value; +#endif +} + +static const char *kernel_symbol_name(const struct kernel_symbol *sym) +{ +#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS + return offset_to_ptr(&sym->name_offset); +#else + return sym->name; +#endif +} + static int cmp_name(const void *va, const void *vb) { const char *a; const struct kernel_symbol *b; a = va; b = vb; - return strcmp(a, b->name); + return strcmp(a, kernel_symbol_name(b)); } static bool find_symbol_in_section(const struct symsearch *syms, @@ -2170,7 +2188,7 @@ void *__symbol_get(const char *symbol) sym = NULL; preempt_enable(); - return sym ? (void *)sym->value : NULL; + return sym ? (void *)kernel_symbol_value(sym) : NULL; } EXPORT_SYMBOL_GPL(__symbol_get); @@ -2200,10 +2218,12 @@ static int verify_export_symbols(struct module *mod) for (i = 0; i < ARRAY_SIZE(arr); i++) { for (s = arr[i].sym; s < arr[i].sym + arr[i].num; s++) { - if (find_symbol(s->name, &owner, NULL, true, false)) { + if (find_symbol(kernel_symbol_name(s), &owner, NULL, + true, false)) { pr_err("%s: exports duplicate symbol %s" " (owned by %s)\n", - mod->name, s->name, module_name(owner)); + mod->name, kernel_symbol_name(s), + module_name(owner)); return -ENOEXEC; } } @@ -2252,7 +2272,7 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) ksym = resolve_symbol_wait(mod, info, name); /* Ok if resolved. */ if (ksym && !IS_ERR(ksym)) { - sym[i].st_value = ksym->value; + sym[i].st_value = kernel_symbol_value(ksym); break; } @@ -2516,7 +2536,7 @@ static int is_exported(const char *name, unsigned long value, ks = lookup_symbol(name, __start___ksymtab, __stop___ksymtab); else ks = lookup_symbol(name, mod->syms, mod->syms + mod->num_syms); - return ks != NULL && ks->value == value; + return ks != NULL && kernel_symbol_value(ks) == value; } /* As per nm */ |
