2018-11-16 12:46:33 +00:00
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From c69c32061cb864e8934041bb48f3c241a78cb05f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Tue, 25 Sep 2018 13:44:32 +0200
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Subject: [PATCH] add build note to assembler sources
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When distros use the annobin compiler plugin [1], they have complete overview
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what compiler flags were used for compilation and they are able to perform
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security checks on the produced binaries. Compiling assembler source can't
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provide this kind of information by default, so we need the explicit
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-Wa,--generate-missing-build-notes=yes option during build. When the option is
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missing, then the annocheck tool reports "GAPS" in the resulting binary.
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binutils >= 2.31 or older with backport is needed
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[1] https://fedoraproject.org/wiki/Changes/Annobin
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Signed-off-by: Dan Horák <dan@danny.cz>
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---
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configure.ac | 4 ++++
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libica.spec | 2 +-
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src/Makefile.am | 2 +-
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3 files changed, 6 insertions(+), 2 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 48f8242..18df2b0 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -80,12 +80,16 @@ if test "x$enable_coverage" = xno && test "x$enable_debug" = xno && test "x$enab
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FLAGS="$FLAGS -O3 -D_FORTIFY_SOURCE=2"
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fi
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+# check if assembler can generate missing build notes, binutils >= 2.31 or older with backport is needed
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+AX_CHECK_COMPILE_FLAG([-Wa,--generate-missing-build-notes=yes], [ICA_ASFLAGS="-Wa,--generate-missing-build-notes=yes"])
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+
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# restore cmdline flags (ignore PROG_AS/PROG_CC defaults)
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CFLAGS="$cmdline_CFLAGS"
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CCASFLAGS="$cmdline_CFLAGS"
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AC_SUBST([FLAGS], $FLAGS)
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AC_SUBST([LIBS], $LIBS)
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+AC_SUBST([ICA_ASFLAGS], $ICA_ASFLAGS)
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AC_CONFIG_FILES([Makefile doc/Makefile include/Makefile src/Makefile test/Makefile])
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AC_OUTPUT
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diff --git a/libica.spec b/libica.spec
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index 022f6c2..66d82cf 100644
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--- a/libica.spec
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+++ b/libica.spec
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@@ -9,7 +9,7 @@ URL: https://github.com/opencryptoki/libica
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Source0: %{name}-%{version}.tar.gz
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BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
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-BuildRequires: autoconf automake libtool openssl-devel
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+BuildRequires: autoconf automake libtool openssl-devel autoconf-archive
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%description
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Interface library on Linux for IBM System z to utilize CPACF
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diff --git a/src/Makefile.am b/src/Makefile.am
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index c7cecf6..a21ba00 100644
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -8,7 +8,7 @@ lib_LTLIBRARIES = libica.la
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libica_la_CFLAGS = ${AM_CFLAGS} -I${srcdir}/include -I${srcdir}/../include \
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2019-11-26 09:51:25 +00:00
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-fvisibility=hidden -pthread
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2018-11-16 12:46:33 +00:00
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-libica_la_CCASFLAGS = ${AM_CFLAGS}
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+libica_la_CCASFLAGS = ${AM_CFLAGS} ${ICA_ASFLAGS}
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libica_la_LIBADD = @LIBS@ -lrt -lcrypto
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libica_la_LDFLAGS = -Wl,--version-script=${srcdir}/../libica.map \
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-version-number ${VERSION}
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--
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2.14.5
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