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| 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 /binutils/rdcoff.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 'binutils/rdcoff.c')
| -rw-r--r-- | binutils/rdcoff.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/binutils/rdcoff.c b/binutils/rdcoff.c index 4d18d47..95b3c54 100644 --- a/binutils/rdcoff.c +++ b/binutils/rdcoff.c @@ -176,13 +176,13 @@ parse_coff_type (bfd *abfd, struct coff_symbols *symbols, return type; } - if (pauxent != NULL && pauxent->x_sym.x_tagndx.l > 0) + if (pauxent != NULL && (int32_t) pauxent->x_sym.x_tagndx.u32 > 0) { debug_type *slot; /* This is a reference to an existing type. FIXME: gdb checks that the class is not C_STRTAG, nor C_UNTAG, nor C_ENTAG. */ - slot = coff_get_slot (types, pauxent->x_sym.x_tagndx.l); + slot = coff_get_slot (types, pauxent->x_sym.x_tagndx.u32); if (*slot != DEBUG_TYPE_NULL) return *slot; else @@ -328,7 +328,7 @@ parse_coff_struct_type (bfd *abfd, struct coff_symbols *symbols, int count; bool done; - symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l; + symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.u32; alloc = 10; fields = (debug_field *) xmalloc (alloc * sizeof *fields); @@ -438,7 +438,7 @@ parse_coff_enum_type (bfd *abfd, struct coff_symbols *symbols, int count; bool done; - symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l; + symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.u32; alloc = 10; names = (const char **) xmalloc (alloc * sizeof *names); |