Bug#976795: gdal: Please build with -fno-guess-branch-probability on sh4 to prevent compiler segfault
John Paul Adrian Glaubitz <[email protected]>
| Newsgroups | gmane.linux.debian.ports.superh |
|---|---|
| Message-ID | <160738680404.2418916.15787175541196645502.reportbug__25996.0438053653$1607387064$gmane$org@epyc.physik.fu-berlin.de> |
Source: gdal Severity: normal Tags: patch User: [email protected] Usertags: sh3 sh4 X-Debbugs-Cc: [email protected] Hello! Due to a bug in gcc, the compiler currently segfaults on sh4 with -O2 unless -fno-guess-branch-probability is passed as well [1]: during RTL pass: mach pcrasterutil.cpp: In function 'void castValuesToBooleanRange(void*, size_t, CSF_CR)': pcrasterutil.cpp:674:1: internal compiler error: Segmentation fault 674 | } | ^ mmap: Permission denied Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions. The attached patch for debian/rules works around this problem by passing the necessary -fno-guess-branch-probability through DEB_CXXFLAGS_APPEND on sh4 (and sh3): --- debian/rules.orig 2020-12-06 12:57:44.000000000 +0100 +++ debian/rules 2020-12-08 01:13:56.978960446 +0100 @@ -45,6 +45,11 @@ WITH_HDF5:= endif +# See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189 +ifneq (,$(filter $(DEB_HOST_ARCH),sh3 sh4)) + export DEB_CXXFLAGS_APPEND=-fno-guess-branch-probability +endif + ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386)) WITH_SSE=yes WITH_SSSE3=yes Could you include that change in the next upload? Thanks, Adrian > [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - [email protected] `. `' Freie Universitaet Berlin - [email protected] `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
sh4-disable-guess-branch-probability.patch
(text/plain, 409 B)
--- debian/rules.orig 2020-12-06 12:57:44.000000000 +0100 +++ debian/rules 2020-12-08 01:13:56.978960446 +0100 @@ -45,6 +45,11 @@ WITH_HDF5:= endif +# See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98189 +ifneq (,$(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