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+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: [Frederic Bonnard] Bug#803363: [PATCH] notmuch: workaround for FTBFS\r
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+Date: Thu, 29 Oct 2015 07:31:14 -0300\r
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+--=-=-=\r
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+opinions? Shall I apply this in 0.21?\r
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+Subject: Bug#803363: [PATCH] notmuch: workaround for FTBFS\r
+Reply-To: Frederic Bonnard <frederic@fr.ibm.com>, 803363@bugs.debian.org\r
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+Date: Thu, 29 Oct 2015 10:29:59 +0100\r
+Message-ID: <20151029102959.GC32083@kin.test.toulouse-stg.fr.ibm.com>\r
+From: Frederic Bonnard <frederic@fr.ibm.com>\r
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+\r
+Source: notmuch\r
+Source-Version: 0.21~rc3-3\r
+Tags: patch\r
+User: debian-powerpc@lists.debian.org\r
+Usertags: ppc64el \r
+\r
+--\r
+\r
+Hi,\r
+on ppc64el, there is a FTBFS on this version since 0.20.2-2 due a test\r
+failing (070).\r
+This is due to the fact that the test is using a breakpoint on the function\r
+notmuch_database_add_message so that it can force a return code and check\r
+the exit code of the binary is the one injected, but for some reason, gdb\r
+fails to trap that function : the breakpoint does not interrupt the program.\r
+In the early days, this was known because of the ABIv2 that makes a function\r
+have a Local Entry Point and a Global Entry Point.\r
+And gdb placed a breakpoint on notmuch_database_add_message, on the address\r
+off the GEP, and in some case you only get through the LEP, and then\r
+the breakpoint is not called.\r
+For reference : https://sourceware.org/ml/gdb-patches/2014-01/msg01013.html\r
+This should be fixed in gdb now, but it seems there's an issue on that.\r
+So the workaround for the moment is to place a 2nd breakpoint on the LEP,\r
+which is at the address of notmuch_database_add_message + 8.\r
+On other architectures, this won't cause trouble as the first one will be\r
+activated and return with the forced exit code will be done.\r
+So notmuch is not broken, but there is something wrong with gdb, and\r
+in the meantime, I need to check with gdb what's going on.\r
+F.\r
+\r
+---\r
+Index: sources-notmuch/0.21~rc3-3/test/T070-insert.sh\r
+===================================================================\r
+--- sources-notmuch/0.21~rc3-3/test/T070-insert.sh\r
++++ sources-notmuch/0.21~rc3-3/test/T070-insert.sh\r
+@@ -192,8 +192,9 @@\r
+ gen_insert_msg\r
+ cat <<EOF > index-file-$code.gdb\r
+ set breakpoint pending on\r
+ break notmuch_database_add_message\r
++break *notmuch_database_add_message+8\r
+ commands\r
+ return NOTMUCH_STATUS_$code\r
+ continue\r
+ end\r
+\r
+\r
+--=-=-=--\r
projects / notmuch-archives.git / commitdiff