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authorJoseph Myers <joseph@codesourcery.com>2016-11-22 01:58:26 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-11-22 01:58:26 +0000
commit5ee1a4443a3eb0868cef1fe506ae6fb6af33d4ad (patch)
treeb8a5ca7358b8078758e757061aebdefe27edeef4
parentd2e1e973322fa02ae8d005236f1a25fb2cc3b6a8 (diff)
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Make build-many-glibcs.py use -fno-isolate-erroneous-paths options for tilepro.
My most recent build-many-glibcs.py build with GCC mainline showed
build failures for tilepro with the symptoms (multiple definitions of
symbols building ld.so, see the build log referenced in the GCC bug
referenced in the comment for an example) that correspond to the
isolate-erroneous-paths optimization not being suitable for building
glibc unless the GCC port provides a trap pattern (so __builtin_trap
expands to an inline instruction rather than a call to abort).  Since
tilepro indeed lacks such as pattern in GCC, this patch duly arranges
for this optimization to be disabled when building for tilepro, as it
is for sh.

Tested (compilation only) for tilepro.

	* scripts/build-many-glibcs.py (Context.add_all_configs): Also use
	-fno-isolate-erroneous-paths options for tilepro.
-rw-r--r--ChangeLog5
-rwxr-xr-xscripts/build-many-glibcs.py12
2 files changed, 12 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog
index 8fe997a5c0..d54089db4e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-11-22  Joseph Myers  <joseph@codesourcery.com>
+
+	* scripts/build-many-glibcs.py (Context.add_all_configs): Also use
+	-fno-isolate-erroneous-paths options for tilepro.
+
 2016-11-21  Steve Ellcey  <sellcey@caviumnetworks.com>
 
 	* sysdeps/unix/sysv/linux/generic/kernel_stat.h: Set XSTAT_IS_XSTAT64
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 517dec4974..63ea5fda0a 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -91,6 +91,11 @@ class Context(object):
 
     def add_all_configs(self):
         """Add all known glibc build configurations."""
+        # On architectures missing __builtin_trap support, these
+        # options may be needed as a workaround; see
+        # <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216> for SH.
+        no_isolate = ('-fno-isolate-erroneous-paths-dereference'
+                      ' -fno-isolate-erroneous-paths-attribute')
         self.add_config(arch='aarch64',
                         os_name='linux-gnu')
         self.add_config(arch='aarch64_be',
@@ -260,10 +265,6 @@ class Context(object):
                         os_name='linux-gnu',
                         glibcs=[{},
                                 {'arch': 's390', 'ccopts': '-m31'}])
-        # SH is missing __builtin_trap support, so work around this;
-        # see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216>.
-        no_isolate = ('-fno-isolate-erroneous-paths-dereference'
-                      ' -fno-isolate-erroneous-paths-attribute')
         self.add_config(arch='sh3',
                         os_name='linux-gnu',
                         glibcs=[{'ccopts': no_isolate}])
@@ -304,7 +305,8 @@ class Context(object):
                         glibcs=[{},
                                 {'variant': '32', 'ccopts': '-m32'}])
         self.add_config(arch='tilepro',
-                        os_name='linux-gnu')
+                        os_name='linux-gnu',
+                        glibcs=[{'ccopts': no_isolate}])
         self.add_config(arch='x86_64',
                         os_name='linux-gnu',
                         gcc_cfg=['--with-multilib-list=m64,m32,mx32'],