Re: Bug#972202: python3.9: Please build with -O1 on sh4 to temporarily work around GCC bug
Hello!
On 10/14/20 12:15 PM, John Paul Adrian Glaubitz wrote:
> I will try to track down which particular optimization flag causes the miscompilation
> and report the issue to GCC upstream.
Turns out the offending optimization flag is "-finline-small-functions", so this
workaround makes the package build.
diff -Nru old/python3.9-3.9.0/debian/rules new/python3.9-3.9.0/debian/rules
--- old/python3.9-3.9.0/debian/rules 2020-09-03 21:33:00.000000000 +0200
+++ new/python3.9-3.9.0/debian/rules 2020-10-14 22:45:31.423587080 +0200
@@ -170,6 +170,9 @@
ifeq ($(DEB_HOST_ARCH),ia64)
EXTRA_OPT_CFLAGS += -O2
endif
+ifeq ($(DEB_HOST_ARCH),sh4)
+ EXTRA_OPT_CFLAGS += -fno-inline-small-functions
+endif
ifneq (,$(filter $(DEB_HOST_ARCH), ppc64 ppc64el))
OPT_CFLAGS += -fexceptions
DEBUG_CFLAGS += -fexceptions
I will report the issue to gcc upstream.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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