* dwarf2dbg.c (dwarf2dbg_final_check): Rename local variable exp from expr.

Trying to build (for mmix-knuth-mmixware but I don't think that
matters) yields the following (repeatable on e.g. CompileFarm gcc20
sporting gcc-4.7.2 as default):

gcc -DHAVE_CONFIG_H -I. -I/home/hp/binutils/src/gas  -I. -I/home/hp/binutils/src/gas -I../bfd -I/home/hp/binutils/src/gas/config -I/home/hp/binutils/src/gas/../include -I/home/hp/binutils/src/gas/.. -I/home/hp/binutils/src/gas/../bfd -DLOCALEDIR="\"/usr/local/share/locale\""  -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Werror -Wwrite-strings -I/home/hp/binutils/src/gas/../zlib -g -O2 -MT dwarf2dbg.o -MD -MP -MF .deps/dwarf2dbg.Tpo -c -o dwarf2dbg.o /home/hp/binutils/src/gas/dwarf2dbg.c
cc1: warnings being treated as errors
/home/hp/binutils/src/gas/dwarf2dbg.c: In function 'dwarf2dbg_final_check':
/home/hp/binutils/src/gas/dwarf2dbg.c:2246: error: declaration of 'expr' shadows a global declaration
/home/hp/binutils/src/gas/expr.h:180: error: shadowed declaration is here
make[4]: *** [dwarf2dbg.o] Error 1

IIRC this is a false namespace clash and the warning is not observable
with a new-enough gcc.  Committed as obvious.

brgds, H-P
PS. Idea: -Wcompiler; warn about constructs problematic with e.g. old gcc. 1/2 ;-)
This commit is contained in:
Hans-Peter Nilsson 2017-07-24 00:53:34 +02:00
parent 15a3a14fdd
commit 723dfee7b8
2 changed files with 10 additions and 5 deletions

View File

@ -1,3 +1,8 @@
2017-07-24 Hans-Peter Nilsson <hp@bitrange.com>
* dwarf2dbg.c (dwarf2dbg_final_check): Rename local variable exp
from expr.
2017-07-21 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/tc-s390.c (s390_parse_cpu): Add z14 as alternate CPU

View File

@ -2243,21 +2243,21 @@ dwarf2dbg_final_check (void)
holding the check value in X_op_symbol. */
while (view_assert_failed)
{
expressionS *expr;
expressionS *exp;
symbolS *sym;
offsetT failed;
gas_assert (!symbol_resolved_p (view_assert_failed));
expr = symbol_get_value_expression (view_assert_failed);
exp = symbol_get_value_expression (view_assert_failed);
sym = view_assert_failed;
/* If view_assert_failed looks like a compound check in the
chain, break it up. */
if (expr->X_op == O_add && expr->X_add_number == 0 && expr->X_unsigned)
if (exp->X_op == O_add && exp->X_add_number == 0 && exp->X_unsigned)
{
view_assert_failed = expr->X_add_symbol;
sym = expr->X_op_symbol;
view_assert_failed = exp->X_add_symbol;
sym = exp->X_op_symbol;
}
else
view_assert_failed = NULL;