diff options
| author | Alan Modra <amodra@gmail.com> | 2023-03-25 21:15:46 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2023-03-27 21:58:46 +1030 |
| commit | a2c7ca15a5609ea230771fc418511a3b8db16bd1 (patch) | |
| tree | 3e5b9c33b8f90ce7b8afd8621ca7cdf5ea35caff /bfd/coff-bfd.c | |
| parent | 3bb1480e2a85de6850863d245e7b6da03a3887f7 (diff) | |
| download | gdb-a2c7ca15a5609ea230771fc418511a3b8db16bd1.zip gdb-a2c7ca15a5609ea230771fc418511a3b8db16bd1.tar.gz gdb-a2c7ca15a5609ea230771fc418511a3b8db16bd1.tar.bz2 | |
Use stdint types in coff internal_auxent
long is a poor choice of type to store 32-bit values read from
objects files by H_GET_32. H_GET_32 doesn't sign extend so tests like
that in gdb/coffread.c for "negative" values won't work if long is
larger than 32 bits. If long is 32-bit then code needs to be careful
to not accidentally index negative array elements. (I'd rather see a
segfault on an unmapped 4G array index than silently reading bogus
data.) long is also a poor choice for x_sect.s_scnlen, which might
have 64-bit values. It's better to use unsigned exact width types to
avoid surprises.
I decided to change the field names too, which makes most of this
patch simply renaming. Besides that there are a few places where
casts are no longer needed, and where printf format strings or tests
need adjusting.
include/
* coff/internal.h (union internal_auxent): Use unsigned stdint
types. Rename l fields to u32 and u64 as appropriate.
bfd/
* coff-bfd.c,
* coff-rs6000.c,
* coff64-rs6000.c,
* coffcode.h,
* coffgen.c,
* cofflink.c,
* coffswap.h,
* peXXigen.c,
* xcofflink.c: Adjust to suit internal_auxent changes.
binutils/
* rdcoff.c: Adjust to suit internal_auxent changes.
gas/
* config/obj-coff.h,
* config/tc-ppc.c: Adjust to suit internal_auxent changes.
gdb/
* coffread.c,
* xcoffread.c: Adjust to suit internal_auxent changes.
ld/
* pe-dll.c: Adjust to suit internal_auxent changes.
Diffstat (limited to 'bfd/coff-bfd.c')
| -rw-r--r-- | bfd/coff-bfd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/bfd/coff-bfd.c b/bfd/coff-bfd.c index 9660b6b..292778e 100644 --- a/bfd/coff-bfd.c +++ b/bfd/coff-bfd.c @@ -83,7 +83,7 @@ bfd_coff_get_auxent (bfd *abfd, if (ent->fix_tag) { - pauxent->x_sym.x_tagndx.l = + pauxent->x_sym.x_tagndx.u32 = ((combined_entry_type *) pauxent->x_sym.x_tagndx.p - obj_raw_syments (abfd)); ent->fix_tag = 0; @@ -91,7 +91,7 @@ bfd_coff_get_auxent (bfd *abfd, if (ent->fix_end) { - pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = + pauxent->x_sym.x_fcnary.x_fcn.x_endndx.u32 = ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p - obj_raw_syments (abfd)); ent->fix_end = 0; @@ -99,7 +99,7 @@ bfd_coff_get_auxent (bfd *abfd, if (ent->fix_scnlen) { - pauxent->x_csect.x_scnlen.l = + pauxent->x_csect.x_scnlen.u64 = ((combined_entry_type *) pauxent->x_csect.x_scnlen.p - obj_raw_syments (abfd)); ent->fix_scnlen = 0; |