diff options
Diffstat (limited to 'modutils/modutils-24.c')
| -rw-r--r-- | modutils/modutils-24.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/modutils/modutils-24.c b/modutils/modutils-24.c index e5ff54d29..a878e740c 100644 --- a/modutils/modutils-24.c +++ b/modutils/modutils-24.c @@ -3783,12 +3783,20 @@ int FAST_FUNC bb_init_module_24(const char *m_filename, const char *options) int m_has_modinfo; #endif char *image; - size_t image_size = 64 * 1024 * 1024; - - /* Load module into memory and unzip if compressed */ - image = xmalloc_open_zipped_read_close(m_filename, &image_size); - if (!image) - return EXIT_FAILURE; + size_t image_size; + bool mmaped; + + image_size = INT_MAX - 4095; + mmaped = 0; + image = try_to_mmap_module(m_filename, &image_size); + if (image) { + mmaped = 1; + } else { + /* Load module into memory and unzip if compressed */ + image = xmalloc_open_zipped_read_close(m_filename, &image_size); + if (!image) + return EXIT_FAILURE; + } m_name = xstrdup(bb_basename(m_filename)); /* "module.o[.gz]" -> "module" */ @@ -3901,7 +3909,10 @@ int FAST_FUNC bb_init_module_24(const char *m_filename, const char *options) exit_status = EXIT_SUCCESS; out: - free(image); + if (mmaped) + munmap(image, image_size); + else + free(image); free(m_name); return exit_status; |