diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2020-12-11 10:46:27 -0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-01-14 08:21:09 -0800 |
| commit | 7ac204b545f263c7595a8b5ec3797ae9f9954f82 (patch) | |
| tree | 30f8fa6ccf3da68844968f83751dd7f2a7a1ff66 /scripts/mod/modpost.h | |
| parent | 09a4e4d9c52a3c5e39e4f409b2c083ab13c6afc2 (diff) | |
| download | linux-7ac204b545f263c7595a8b5ec3797ae9f9954f82.tar.gz | |
modpost: lto: strip .lto from module names
With LTO, everything is compiled into LLVM bitcode, so we have to link
each module into native code before modpost. Kbuild uses the .lto.o
suffix for these files, which also ends up in module information. This
change strips the unnecessary .lto suffix from the module name.
Suggested-by: Bill Wendling <morbo@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-11-samitolvanen@google.com
Diffstat (limited to 'scripts/mod/modpost.h')
| -rw-r--r-- | scripts/mod/modpost.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index e6f46eee0af0..1f76eea7cfde 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -2,6 +2,7 @@ #include <stdio.h> #include <stdlib.h> #include <stdarg.h> +#include <stdbool.h> #include <string.h> #include <sys/types.h> #include <sys/stat.h> @@ -180,6 +181,14 @@ static inline unsigned int get_secindex(const struct elf_info *info, return info->symtab_shndx_start[sym - info->symtab_start]; } +static inline bool strends(const char *str, const char *postfix) +{ + if (strlen(str) < strlen(postfix)) + return false; + + return strcmp(str + strlen(str) - strlen(postfix), postfix) == 0; +} + /* file2alias.c */ extern unsigned int cross_build; void handle_moddevtable(struct module *mod, struct elf_info *info, |