diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-19 11:12:36 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-19 11:12:36 -0300 |
| commit | 4d4eb38795b5cbc66103ae2582bccead5bf0f736 (patch) | |
| tree | 8048284284f48cb7c97a5c4fef0fc712125bbffa /include/linux/execmem.h | |
| parent | 8cdf00b843ea3ca0e920176937bbc906b0b5bb04 (diff) | |
| parent | a5806cd506af5a7c19bcd596e4708b5c464bfd21 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
To pick up changes for other tools/ libraries used by perf and for
header synchronization with the kernel sources originals.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'include/linux/execmem.h')
| -rw-r--r-- | include/linux/execmem.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/execmem.h b/include/linux/execmem.h index 65655a5d1be2..ca42d5e46ccc 100644 --- a/include/linux/execmem.h +++ b/include/linux/execmem.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/moduleloader.h> +#include <linux/cleanup.h> #if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \ !defined(CONFIG_KASAN_VMALLOC) @@ -53,7 +54,7 @@ enum execmem_range_flags { EXECMEM_ROX_CACHE = (1 << 1), }; -#ifdef CONFIG_ARCH_HAS_EXECMEM_ROX +#if defined(CONFIG_ARCH_HAS_EXECMEM_ROX) && defined(CONFIG_EXECMEM) /** * execmem_fill_trapping_insns - set memory to contain instructions that * will trap @@ -93,9 +94,15 @@ int execmem_make_temp_rw(void *ptr, size_t size); * Return: 0 on success or negative error code on failure. */ int execmem_restore_rox(void *ptr, size_t size); + +/* + * Called from mark_readonly(), where the system transitions to ROX. + */ +void execmem_cache_make_ro(void); #else static inline int execmem_make_temp_rw(void *ptr, size_t size) { return 0; } static inline int execmem_restore_rox(void *ptr, size_t size) { return 0; } +static inline void execmem_cache_make_ro(void) { } #endif /** @@ -170,6 +177,8 @@ void *execmem_alloc(enum execmem_type type, size_t size); */ void execmem_free(void *ptr); +DEFINE_FREE(execmem, void *, if (_T) execmem_free(_T)); + #ifdef CONFIG_MMU /** * execmem_vmap - create virtual mapping for EXECMEM_MODULE_DATA memory |