diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2022-04-17 17:03:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-09 09:16:33 +0200 |
| commit | d17f64c295124e198a707f0e1e40ee298d919271 (patch) | |
| tree | 8635df5820fa24d895884f8cd9706ef864c117ab | |
| parent | 60d2b0b1018a274fc3af1a90d46af4f2094f7e13 (diff) | |
| download | linux-stable-d17f64c295124e198a707f0e1e40ee298d919271.tar.gz linux-stable-d17f64c295124e198a707f0e1e40ee298d919271.tar.bz2 linux-stable-d17f64c295124e198a707f0e1e40ee298d919271.zip | |
objtool: Fix type of reloc::addend
commit c087c6e7b551b7f208c0b852304f044954cf2bb3 upstream.
Elf{32,64}_Rela::r_addend is of type: Elf{32,64}_Sword, that means
that our reloc::addend needs to be long or face tuncation issues when
we do elf_rebuild_reloc_section():
- 107: 48 b8 00 00 00 00 00 00 00 00 movabs $0x0,%rax 109: R_X86_64_64 level4_kernel_pgt+0x80000067
+ 107: 48 b8 00 00 00 00 00 00 00 00 movabs $0x0,%rax 109: R_X86_64_64 level4_kernel_pgt-0x7fffff99
Fixes: 627fce14809b ("objtool: Add ORC unwind table generation")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20220419203807.596871927@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | tools/objtool/check.c | 8 | ||||
| -rw-r--r-- | tools/objtool/elf.c | 2 | ||||
| -rw-r--r-- | tools/objtool/include/objtool/elf.h | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 3470813daf4a..af675c8cf05d 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -546,12 +546,12 @@ static int add_dead_ends(struct objtool_file *file) else if (reloc->addend == reloc->sym->sec->sh.sh_size) { insn = find_last_insn(file, reloc->sym->sec); if (!insn) { - WARN("can't find unreachable insn at %s+0x%x", + WARN("can't find unreachable insn at %s+0x%lx", reloc->sym->sec->name, reloc->addend); return -1; } } else { - WARN("can't find unreachable insn at %s+0x%x", + WARN("can't find unreachable insn at %s+0x%lx", reloc->sym->sec->name, reloc->addend); return -1; } @@ -581,12 +581,12 @@ reachable: else if (reloc->addend == reloc->sym->sec->sh.sh_size) { insn = find_last_insn(file, reloc->sym->sec); if (!insn) { - WARN("can't find reachable insn at %s+0x%x", + WARN("can't find reachable insn at %s+0x%lx", reloc->sym->sec->name, reloc->addend); return -1; } } else { - WARN("can't find reachable insn at %s+0x%x", + WARN("can't find reachable insn at %s+0x%lx", reloc->sym->sec->name, reloc->addend); return -1; } diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c index ef8c262b8cd2..2a7061e6f465 100644 --- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -486,7 +486,7 @@ static struct section *elf_create_reloc_section(struct elf *elf, int reltype); int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset, - unsigned int type, struct symbol *sym, int addend) + unsigned int type, struct symbol *sym, long addend) { struct reloc *reloc; diff --git a/tools/objtool/include/objtool/elf.h b/tools/objtool/include/objtool/elf.h index d22336781401..18a26e3c1329 100644 --- a/tools/objtool/include/objtool/elf.h +++ b/tools/objtool/include/objtool/elf.h @@ -73,7 +73,7 @@ struct reloc { struct symbol *sym; unsigned long offset; unsigned int type; - int addend; + long addend; int idx; bool jump_table_start; }; @@ -135,7 +135,7 @@ struct elf *elf_open_read(const char *name, int flags); struct section *elf_create_section(struct elf *elf, const char *name, unsigned int sh_flags, size_t entsize, int nr); int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset, - unsigned int type, struct symbol *sym, int addend); + unsigned int type, struct symbol *sym, long addend); int elf_add_reloc_to_insn(struct elf *elf, struct section *sec, unsigned long offset, unsigned int type, struct section *insn_sec, unsigned long insn_off); |