rescueOS/buildroot-patches/gcc46-avoid-segfault.patch
Daniel Gnoutcheff 3d97f40858 Added gcc46-avoid-segfault.patch
This GCC patch was needed in order to successfully build a
cross-compilation toolchain under buildroot on Ubuntu 14.04.

The patch is included in later GCC releases, so we probably can drop
this once we upgrade GCC.
2015-04-02 11:52:26 -04:00

43 γραμμές
1.6 KiB
Diff

Αυτό το αρχείο περιέχει ασαφείς χαρακτήρες Unicode

Αυτό το αρχείο περιέχει χαρακτήρες Unicode που μπορεί να συγχέονται με άλλους χαρακτήρες. Αν νομίζετε ότι αυτό είναι σκόπιμο, μπορείτε να αγνοήσετε με ασφάλεια αυτή την προειδοποίηση. Χρησιμοποιήστε το κουμπί Escape για να τους αποκαλύψετε.

Avoid GCC 4.6 segfaults
Buildroot's attempt to build a GCC 4.6.x cross-compilation toolchain might fail
with something like
/some/path/buildroot-2013.02/output/toolchain/gcc-4.6.3/libgcc/../gcc/libgcc2.c: In function __negdi2:
/some/path/buildroot-2013.02/output/toolchain/gcc-4.6.3/libgcc/../gcc/libgcc2.c:72:1: internal compiler error: Segmentation fault
This patch is revision 191605 for GCC 4.7.x
(<https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=191605>). Applying it
to 4.6.x seems to prevent this crash.
Save this file as
buildroot-2013.02/toolchain/gcc/4.6.3/999-ira-int.patch
to have buildroot apply this patch to GCC 4.6.x source before trying to build
it.
See also <https://gcc.gnu.org/ml/gcc-help/2014-03/msg00049.html>
Index: buildroot-2013.02/toolchain/gcc/4.6.3/999-ira-int.patch
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ buildroot-2013.02/toolchain/gcc/4.6.3/999-ira-int.patch 2015-03-29 00:09:28.000000000 -0400
@@ -0,0 +1,18 @@
+--- gcc-4_7-branch/gcc/ira-int.h 2012/09/21 09:19:39 191604
++++ gcc-4_7-branch/gcc/ira-int.h 2012/09/21 10:08:35 191605
+@@ -1138,8 +1138,13 @@
+ ira_allocno_object_iter_cond (ira_allocno_object_iterator *i, ira_allocno_t a,
+ ira_object_t *o)
+ {
+- *o = ALLOCNO_OBJECT (a, i->n);
+- return i->n++ < ALLOCNO_NUM_OBJECTS (a);
++ int n = i->n++;
++ if (n < ALLOCNO_NUM_OBJECTS (a))
++ {
++ *o = ALLOCNO_OBJECT (a, n);
++ return true;
++ }
++ return false;
+ }
+
+ /* Loop over all objects associated with allocno A. In each