https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70416
Bug ID: 70416
Summary: [SH]: error: 'asm' operand requires impossible reload
when building ruby2.3
Product: gcc
Version: 5.3.1
URL: https://buildd.debian.org/status/fetch.php?pkg=ruby2.3
&arch=sh4&ver=2.3.0-2&stamp=1455247013
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: glaubitz at physik dot fu-berlin.de
CC: bugdal at aerifal dot cx, kkojima at gcc dot gnu.org,
olegendo at gcc dot gnu.org
Target Milestone: ---
Target: sh*-*-*
Hi!
We're currently having issues building ruby2.3 on Debian sh4:
gcc -mieee -g -O2 -fstack-protector-strong -Wformat -Werror=format-security
-fPIC -D_FORTIFY_SOURCE=2 -fstack-protector -fno-strict-overflow
-fvisibility=hidden -DRUBY_EXPORT -Wdate-time -D_FORTIFY_SOURCE=2 -I.
-I.ext/include/sh4-linux-gnu -I./include -I. -o vm.o -c vm.c
In file included from probes.h:10:0,
from vm.c:23:
vm_exec.c: In function 'vm_exec_core':
probes.h:21:1: error: 'asm' operand requires impossible reload
DTRACE_PROBE4 (ruby, method__entry, arg1, arg2, arg3, arg4)
^
(...)
insns.def:825:13: note: in expansion of macro 'RUBY_DTRACE_CMETHOD_RETURN_HOOK'
RUBY_DTRACE_CMETHOD_RETURN_HOOK(th, 0, 0);
^
Makefile:375: recipe for target 'vm.o' failed
make[2]: *** [vm.o] Error 1
I have initially suspected this to be a problem in ruby2.3 itself [1] as
ruby2.2 built without any problems. However, after doing some research, it
seems that the error message "'asm' operand requires impossible reload" usually
indicates a problem within gcc and I'm therefore opening a bug here.
I have created a tarball which contains the build root for ruby2.3 after the
build failed, so all the object files are still there [2].
Adrian
> [1] https://bugs.ruby-lang.org/issues/12120
> [2] https://people.debian.org/~glaubitz/ruby2.3-sh4-build.tgz
