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From 373f9cff2872cf76b9aee6b4fe7719e04dda122f Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Fri, 18 Jan 2019 08:56:51 -0800
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Subject: [PATCH 4/5] Disable lazy binding on tests for minimal signal handler
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Since MINSIGSTKSZ may not have sufficent stack space to allow lazy
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binding, build tests for minimal signal handler with -Wl,-z,now to
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disable lazy binding.
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* signal/Makefile (LDFLAGS-tst-minsigstksz-1): New. Set to
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-Wl,-z,now.
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(LDFLAGS-tst-minsigstksz-2): Likewise.
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(LDFLAGS-tst-minsigstksz-3): Likewise.
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(LDFLAGS-tst-minsigstksz-3a): Likewise.
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(LDFLAGS-tst-minsigstksz-4): Likewise.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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UPDATE:
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Backported to glibc 2.28
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Signed-off-by: Jair Gonzalez <jair.de.jesus.gonzalez.plascencia@intel.com>
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---
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ChangeLog | 9 +++++++++
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signal/Makefile | 8 ++++++++
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2 files changed, 17 insertions(+)
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diff --git a/ChangeLog b/ChangeLog
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index 9e33b6cb..ccd5ff21 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,12 @@
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+2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
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+
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+ * signal/Makefile (LDFLAGS-tst-minsigstksz-1): New. Set to
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+ -Wl,-z,now.
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+ (LDFLAGS-tst-minsigstksz-2): Likewise.
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+ (LDFLAGS-tst-minsigstksz-3): Likewise.
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+ (LDFLAGS-tst-minsigstksz-3a): Likewise.
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+ (LDFLAGS-tst-minsigstksz-4): Likewise.
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+
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2019-01-16 Zack Weinberg <zackw@panix.com>
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* support/xsignal.h (xalloc_sigstack, xfree_sigstack)
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diff --git a/signal/Makefile b/signal/Makefile
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index d5a10d59..7767bb28 100644
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--- a/signal/Makefile
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+++ b/signal/Makefile
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@@ -59,3 +59,11 @@ CFLAGS-sigwait.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-sigwaitinfo.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-sigreturn.c += $(no-stack-protector)
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+
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+# We don't want to test the lazy resolution stack usage, just the
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+# execution of the handler and the functions.
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+LDFLAGS-tst-minsigstksz-1 = -Wl,-z,now
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+LDFLAGS-tst-minsigstksz-2 = -Wl,-z,now
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+LDFLAGS-tst-minsigstksz-3 = -Wl,-z,now
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+LDFLAGS-tst-minsigstksz-3a = -Wl,-z,now
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+LDFLAGS-tst-minsigstksz-4 = -Wl,-z,now
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--
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2.27.0
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