Source: gdal
Severity: normal
Tags: patch
User: [email protected]
Usertags: sh3 sh4
X-Debbugs-Cc: [email protected]
Hello!
Due to a bug in gcc, the compiler currently segfaults on sh4 with -O2 unless
-fno-guess-branch-probability is passed as well [1]:
during RTL pass: mach
pcrasterutil.cpp: In function 'void castValuesToBooleanRange(void*, size_t,
CSF_CR)':
pcrasterutil.cpp:674:1: internal compiler error: Segmentation fault
674 | }
| ^
mmap: Permission denied
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.
The attached patch for debian/rules works around this problem by passing the
necessary
-fno-guess-branch-probability through DEB_CXXFLAGS_APPEND on sh4 (and sh3):
--- debian/rules.orig 2020-12-06 12:57:44.000000000 +0100
+++ debian/rules 2020-12-08 01:13:56.978960446 +0100
@@ -45,6 +45,11 @@
WITH_HDF5:=
endif
+# See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189
+ifneq (,$(filter $(DEB_HOST_ARCH),sh3 sh4))
+ export DEB_CXXFLAGS_APPEND=-fno-guess-branch-probability
+endif
+
ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386))
WITH_SSE=yes
WITH_SSSE3=yes
Could you include that change in the next upload?
Thanks,
Adrian
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - [email protected]
`. `' Freie Universitaet Berlin - [email protected]
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
--- debian/rules.orig 2020-12-06 12:57:44.000000000 +0100
+++ debian/rules 2020-12-08 01:13:56.978960446 +0100
@@ -45,6 +45,11 @@
WITH_HDF5:=
endif
+# See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189
+ifneq (,$(filter $(DEB_HOST_ARCH),sh3 sh4))
+ export DEB_CXXFLAGS_APPEND=-fno-guess-branch-probability
+endif
+
ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386))
WITH_SSE=yes
WITH_SSSE3=yes
