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[src/trunk]: src/doc Update gdb/dwarf2expr.c hack for earmv7hf{,eb}; the situ...
details: https://anonhg.NetBSD.org/src/rev/17ec46eb85b1
branches: trunk
changeset: 944634:17ec46eb85b1
user: rin <rin%NetBSD.org@localhost>
date: Mon Oct 05 13:32:31 2020 +0000
description:
Update gdb/dwarf2expr.c hack for earmv7hf{,eb}; the situation does not
change even for GCC 9.3 with ``memcmp'' fix.
diffstat:
doc/HACKS | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diffs (24 lines):
diff -r f5b56a1888e3 -r 17ec46eb85b1 doc/HACKS
--- a/doc/HACKS Mon Oct 05 13:20:30 2020 +0000
+++ b/doc/HACKS Mon Oct 05 13:32:31 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.211 2020/10/05 13:20:30 rin Exp $
+# $NetBSD: HACKS,v 1.212 2020/10/05 13:32:31 rin Exp $
#
# This file is intended to document workarounds for currently unsolved
# (mostly) compiler bugs.
@@ -974,11 +974,12 @@
kcah
port earmv7hf*
-hack compile gdb/dwarf2expr.c with -O0 for GCC8 (toolchain/54820 and 54877)
+hack compile gdb/dwarf2expr.c with -O0 for GCC[89] (toolchain/54820, 54877)
cdate Wed Apr 29 11:04:58 UTC 2020
+mdate Mon Oct 5 22:30:00 JST 2020
who rin
file src/external/gpl3/gdb/lib/libgdb/Makefile: 1.22
-descr GCC 8.4 miscompiles dwarf2expr.c with -O2 or -O1, which results in
+descr GCC 8.4 and 9.3 miscompile dwarf2expr.c with -O[21], which results in
crashes with 'gdb_exception_RETURN_MASK_ERROR'. Note that this occurs
only for earmv7hf{,eb} as far as I can see. Neither earmv6hf{,eb} nor
earmv7{,eb} (softfloat) are affected.
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