From f841c97e515a1673485a2b12b3c280073d737890 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Thu, 27 Sep 2018 11:12:13 +0200 Subject: [PATCH] Fix stack overflow in tst-setcontext9 (bug 23717) The function f1a, executed on a stack of size 32k, allocates an object of size 32k on the stack. Make the stack variables static to reduce excessive stack usage. --- ChangeLog | 6 ++++++ stdlib/tst-setcontext9.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index 85f8e097b5..a5a64da8b8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2018-09-27 Andreas Schwab + + [BZ #23717] + * stdlib/tst-setcontext9.c (f1a): Make st2 static. + (do_test): Make st1 static. + 2018-09-26 Andreas Schwab [BZ #23707] diff --git a/stdlib/tst-setcontext9.c b/stdlib/tst-setcontext9.c index db8355766c..009928235d 100644 --- a/stdlib/tst-setcontext9.c +++ b/stdlib/tst-setcontext9.c @@ -58,7 +58,7 @@ f1b (void) static void f1a (void) { - char st2[32768]; + static char st2[32768]; puts ("start f1a"); if (getcontext (&ctx[2]) != 0) { @@ -93,7 +93,7 @@ f1a (void) static int do_test (void) { - char st1[32768]; + static char st1[32768]; puts ("making contexts"); if (getcontext (&ctx[0]) != 0) { -- 2.43.5