[PATCH] src: add -Wno-error=stack-usage= to AM_LDFLAGS

[Dmitry V. Levin]

While -Wstack-usage= is already excluded from AM_CFLAGS for various
tools in src using *_no_Wstack_usage variables, this obviously does not
help when LTO is enabled, so add -Wno-error=stack-usage= to AM_LDFLAGS
for linking tools in src.

References: https://sourceware.org/bugzilla/show_bug.cgi?id=24498
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 config/ChangeLog | 4 ++++
 config/eu.am     | 2 ++
 src/ChangeLog    | 4 ++++
 src/Makefile.am  | 2 +-
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/config/ChangeLog b/config/ChangeLog
index 70a1e923..b2c0af8a 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2021-09-05  Dmitry V. Levin  <ldv@altlinux.org>
+
+	* eu.am (STACK_USAGE_NO_ERROR): New variable.
+
 2021-07-06  Alice Zhang  <alizhang@redhat.com>
 
         * debuginfod.sysconfig: Introduce default retry limit.
diff --git a/config/eu.am b/config/eu.am
index 2c3e4571..58cd3c4f 100644
--- a/config/eu.am
+++ b/config/eu.am
@@ -39,8 +39,10 @@ ARFLAGS = cr
 # Warn about stack usage of more than 256K = 262144 bytes.
 if ADD_STACK_USAGE_WARNING
 STACK_USAGE_WARNING=-Wstack-usage=262144
+STACK_USAGE_NO_ERROR=-Wno-error=stack-usage=
 else
 STACK_USAGE_WARNING=
+STACK_USAGE_NO_ERROR=
 endif
 
 if SANE_LOGICAL_OP_WARNING
diff --git a/src/ChangeLog b/src/ChangeLog
index b729eaa4..e83e0a5e 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2021-09-05  Dmitry V. Levin  <ldv@altlinux.org>
+
+	* Makefile.am (AM_LDFLAGS): Add $(STACK_USAGE_NO_ERROR).
+
 2021-08-20  Saleem Abdulrasool  <abdulras@google.com>
 
 	* elfclassify.c: Remove error.h include.
diff --git a/src/Makefile.am b/src/Makefile.am
index 88d0ac8f..86d5bcf8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -23,7 +23,7 @@ AM_CPPFLAGS += -I$(srcdir)/../libelf -I$(srcdir)/../libebl \
 	    -I$(srcdir)/../libdw -I$(srcdir)/../libdwelf \
 	    -I$(srcdir)/../libdwfl -I$(srcdir)/../libasm
 
-AM_LDFLAGS = -Wl,-rpath-link,../libelf:../libdw
+AM_LDFLAGS = -Wl,-rpath-link,../libelf:../libdw $(STACK_USAGE_NO_ERROR)
 
 bin_PROGRAMS = readelf nm size strip elflint findtextrel addr2line \
 	       elfcmp objdump ranlib strings ar unstrip stack elfcompress \
-- 
ldv