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| author | Alan Modra <amodra@gmail.com> | 2021-09-02 09:04:52 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-09-02 13:48:21 +0930 |
| commit | 36f61bf2ad936edfb76eda706eb3b081a61d5a5a (patch) | |
| tree | e8eac96abd2209a4b3e23dae781487f53352f056 /binutils | |
| parent | 76aa354424729aafdabdf4929aa9751c6fdee081 (diff) | |
| download | gdb-36f61bf2ad936edfb76eda706eb3b081a61d5a5a.zip gdb-36f61bf2ad936edfb76eda706eb3b081a61d5a5a.tar.gz gdb-36f61bf2ad936edfb76eda706eb3b081a61d5a5a.tar.bz2 | |
PTR_ADD and NPTR_ADD for bfd.h
This defines a couple of macros used to avoid ubsan complaints about
calculations involving NULL pointers. PTR_ADD should be used in the
case where it is known that the offset is always zero with a NULL
pointer, and you'd like to know if a non-zero offset is ever used.
NPTR_ADD should be rarely used, but is defined for cases where a
non-zero offset is expected and should be ignored if the pointer is
NULL.
bfd/
* bfd-in.h (PTR_ADD, NPTR_ADD): Define.
* bfd-in2.h: Regenerate.
* elf-eh-frame.c (adjust_eh_frame_local_symbols): Avoid NULL
pointer calculations.
* elflink.c (_bfd_elf_strip_zero_sized_dynamic_sections): Likewise.
(bfd_elf_add_dt_needed_tag, elf_finalize_dynstr): Likewise.
(elf_link_add_object_symbols, elf_link_input_bfd): Likewise.
(bfd_elf_final_link, bfd_elf_gc_record_vtinherit): Likewise.
binutils/
* objdump.c (disassemble_section): Use PTR_ADD for rel_ppend.
Diffstat (limited to 'binutils')
| -rw-r--r-- | binutils/objdump.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/binutils/objdump.c b/binutils/objdump.c index f78b70a..27bfb42 100644 --- a/binutils/objdump.c +++ b/binutils/objdump.c @@ -3208,7 +3208,7 @@ disassemble_section (bfd *abfd, asection *section, void *inf) } } } - rel_ppend = rel_pp + rel_count; + rel_ppend = PTR_ADD (rel_pp, rel_count); if (!bfd_malloc_and_get_section (abfd, section, &data)) { |