diff options
Diffstat (limited to 'tools/objtool/elf.c')
| -rw-r--r-- | tools/objtool/elf.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c index 33c95a74a51b..a791f4ea6ec1 100644 --- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -23,6 +23,7 @@ #include <linux/log2.h> #include <objtool/builtin.h> #include <objtool/elf.h> +#include <objtool/klp.h> #include <objtool/warn.h> static ssize_t demangled_name_len(const char *name); @@ -626,6 +627,18 @@ static int read_symbols(struct elf *elf) return -1; } + /* + * "klp diff" renames the placeholder symbols of KLP relocs to + * hide them from modpost. Hide the prefix from the rest of + * objtool so its many name-based heuristics (noreturns, + * uaccess safe list, ...) still see the original symbol name. + * + * st_name is left alone, so the renamed symbol is preserved in + * the output file. + */ + if (strstarts(sym->name, KLP_TOMBSTONE_PREFIX)) + sym->name += strlen(KLP_TOMBSTONE_PREFIX); + if ((sym->sym.st_shndx > SHN_UNDEF && sym->sym.st_shndx < SHN_LORESERVE) || (shndx_data && sym->sym.st_shndx == SHN_XINDEX)) { |