Enable babeltrace compile-time feature.
This commit is contained in:
Jan Kratochvil
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191ccfbccd
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533da91091
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@ -0,0 +1,85 @@
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http://sourceware.org/ml/gdb-patches/2014-08/msg00045.html
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Subject: [patch] Fix --with-babeltrace with gcc-4.9.1
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--qMm9M+Fa2AknHoGS
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline
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Hi,
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when I tried to use --with-babeltrace on Fedora Rawhide x86_64
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using gcc-4.9.1-3.fc22.x86_64 I got:
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checking for libbabeltrace... no
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configure: error: babeltrace is missing or unusable
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Makefile:7973: recipe for target 'configure-gdb' failed
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configure:15890: checking for libbabeltrace
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configure:15918: gcc -o conftest -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -Werror -static-libstdc++ -static-libgcc -Wl,-z,relro conftest.c -lselinux -lncurses -lz -lm -ldl /usr/lib64/libbabeltrace.so /usr/lib64/libbabeltrace-ctf.so >&5
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conftest.c: In function 'main':
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conftest.c:198:21: error: unused variable 'pos' [-Werror=unused-variable]
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struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
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^
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cc1: all warnings being treated as errors
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configure:15918: $? = 1
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configure: failed program was:
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The patch below fixes it for me.
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In configure.ac there is above this check:
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# Append -Werror to CFLAGS so that configure can catch the warning
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# "assignment from incompatible pointer type", which is related to
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# the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
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# in GDB, while babeltrace 1.0.3 is broken.
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# AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
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# safe to save and restore CFLAGS here.
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saved_CFLAGS=$CFLAGS
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CFLAGS="$CFLAGS -Werror"
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Maybe it would be easier to use there:
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CFLAGS="$CFLAGS -Werror -Wno-unused-variable"
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But maybe -Werror is cross-compiler compatible while -Wno-unused-variable is
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not, I have no idea.
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Jan
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--qMm9M+Fa2AknHoGS
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline; filename="gdb-babeltrace-configure.patch"
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gdb/
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2014-08-04 Jan Kratochvil <jan.kratochvil@redhat.com>
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* configure.ac (--with-babeltrace): Use 'pos'.
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* configure: Regenerate.
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diff --git a/gdb/configure.ac b/gdb/configure.ac
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index 70d0964..07d2f00 100644
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--- a/gdb/configure.ac
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+++ b/gdb/configure.ac
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@@ -2437,6 +2437,7 @@ else
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struct bt_ctf_event *event = NULL;
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const struct bt_definition *scope;
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+ (void) pos; /* Prevent -Werror=unused-variable. */
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scope = bt_ctf_get_top_level_scope (event,
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BT_STREAM_EVENT_HEADER);
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bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
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diff --git a/gdb/configure b/gdb/configure
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index 809326a..b983d16 100755
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--- a/gdb/configure
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+++ b/gdb/configure
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@@ -15344,6 +15344,7 @@ struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
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struct bt_ctf_event *event = NULL;
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const struct bt_definition *scope;
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+ (void) pos; /* Prevent -Werror=unused-variable. */
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scope = bt_ctf_get_top_level_scope (event,
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BT_STREAM_EVENT_HEADER);
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bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
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--qMm9M+Fa2AknHoGS--
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17
gdb.spec
17
gdb.spec
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@ -26,7 +26,7 @@ Version: 7.8
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# The release always contains a leading reserved number, start it at 1.
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# `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
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Release: 15%{?dist}
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Release: 16%{?dist}
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License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and BSD and Public Domain and GFDL
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Group: Development/Debuggers
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@ -524,6 +524,9 @@ Patch921: gdb-python-completer-2of2.patch
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# Display Fortran strings in backtraces.
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Patch925: gdb-fortran-frame-string.patch
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# Fix -Werror=unused-variable error configuring babeltrace.
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Patch926: gdb-babeltrace-configure.patch
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%if 0%{!?rhel:1} || 0%{?rhel} > 6
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# RL_STATE_FEDORA_GDB would not be found for:
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# Patch642: gdb-readline62-ask-more-rh.patch
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@ -555,6 +558,9 @@ BuildRequires: texlive-collection-latexrecommended
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%endif
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# Permit rebuilding *.[0-9] files even if they are distributed in gdb-*.tar:
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BuildRequires: /usr/bin/pod2man
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%if 0%{!?rhel:1}
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BuildRequires: libbabeltrace-devel%{?_isa}
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%endif
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%if 0%{?_with_testsuite:1}
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@ -804,6 +810,7 @@ find -name "*.info*"|xargs rm -f
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%patch920 -p1
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%patch921 -p1
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%patch925 -p1
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%patch926 -p1
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%patch848 -p1
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%if 0%{!?el6:1}
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@ -891,6 +898,11 @@ export LDFLAGS="%{?__global_ldflags} %{?_with_asan:-fsanitize=address}"
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--disable-sim \
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--disable-rpath \
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--without-guile \
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%if 0%{!?rhel:1}
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--with-babeltrace \
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%else
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--without-babeltrace \
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%endif
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%if 0%{!?rhel:1} || 0%{?rhel} > 6
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--with-system-readline \
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%else
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@ -1294,6 +1306,9 @@ then
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fi
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%changelog
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* Mon Aug 4 2014 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.8-16.fc21
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- Enable babeltrace compile-time feature.
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* Sat Aug 2 2014 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.8-15.fc21
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- Rebase to FSF GDB 7.8.
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- Display Fortran strings in backtraces.
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