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[src/trunk]: src/doc mention gdb hack discovered by rin.



details:   https://anonhg.NetBSD.org/src/rev/92ac91f56b9e
branches:  trunk
changeset: 983189:92ac91f56b9e
user:      christos <christos%NetBSD.org@localhost>
date:      Sat May 08 12:27:21 2021 +0000

description:
mention gdb hack discovered by rin.

diffstat:

 doc/HACKS |  13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r fc81536e033a -r 92ac91f56b9e doc/HACKS
--- a/doc/HACKS Sat May 08 12:23:47 2021 +0000
+++ b/doc/HACKS Sat May 08 12:27:21 2021 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.216 2020/12/16 01:35:39 rin Exp $
+# $NetBSD: HACKS,v 1.217 2021/05/08 12:27:21 christos Exp $
 #
 # This file is intended to document workarounds for currently unsolved
 # (mostly) compiler bugs.
@@ -1000,3 +1000,14 @@
        mac68k (Quadra 840AV, 68040). Whereas -O0 and -O2 work but -O1 fails
        for sun3 (TME, 68020 emulator) and sun2 (TME, 68010 emulator).
 kcah
+
+port   alpha
+hack   compile __realpath in gdb/gnulib/canonicalize-lgpl.c with -O0 (PR/56153)
+cdate  Sat May  8 08:24:49 EDT 2021
+mdate  Sat May  8 08:24:49 EDT 2021
+who    christos
+file   src/external/gpl3/gdb/dist/gnulib/import/canonicalize-lgpl.c: 1.2
+descr  For alpha gcc-9 and gcc-10 miscompile the malloca macro leading to
+        allocation from the stack and freeing with regular free which causes
+       a crash.
+kcah



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