https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97431
Bug ID: 97431
Summary: [SH] Python crashes with 'Segmentation fault with
-finline-small-functions
Product: gcc
Version: 10.2.0
URL: https://buildd.debian.org/status/fetch.php?pkg=python3
.9&arch=sh4&ver=3.9.0-1&stamp=1601938112&raw=0
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, ysato at users dot
sourceforge.jp
Target Milestone: ---
Target: sh*-*-*
Building Python 3.9 on Debian/sh4 unstable with -finline-small-functions causes
the Python interpreter to segfault during build.
Backtrace:
Program received signal SIGSEGV, Segmentation fault.
long_richcompare (self=0x2a15f490, other=0x2a15f4a0, op=<optimized out>) at
../Objects/longobject.c:3031
3031 long_richcompare(PyObject *self, PyObject *other, int op)
(gdb) bt
#0 long_richcompare (self=0x2a15f490, other=0x2a15f4a0, op=<optimized out>) at
../Objects/longobject.c:3031
#1 0x2964f740 in do_richcompare (op=5, w=0x2a15f4a0, v=0x2a15f490,
tstate=0x4154e8) at ../Objects/object.c:673
#2 PyObject_RichCompare (v=0x2a15f490, w=0x2a15f4a0, op=5) at
../Objects/object.c:723
#3 0x295cde98 in _PyEval_EvalFrameDefault (tstate=<optimized out>,
f=<optimized out>, throwflag=<optimized out>)
at ../Python/ceval.c:2978
#4 0x296d689c in _PyEval_EvalFrame (throwflag=0, f=0x2a19f448,
tstate=0x4154e8) at ../Include/internal/pycore_ceval.h:40
#5 _PyEval_EvalCode (tstate=0x4154e8, _co=<optimized out>, globals=<optimized
out>, locals=<optimized out>,
args=0x2a1b5458, argcount=3, kwnames=0x0, kwargs=0x2a1b5464, kwcount=0,
kwstep=1, defs=0x0, defcount=0,
kwdefs=0x2a1a3d70, closure=0x0, name=0x2a198470, qualname=0x2a198470) at
../Python/ceval.c:4299
#6 0x2960d8ac in _PyFunction_Vectorcall (func=<optimized out>,
stack=0x2a1b5458, nargsf=<optimized out>,
kwnames=<optimized out>) at ../Objects/call.c:395
#7 0x295d1ae0 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=<optimized
out>, args=<optimized out>,
callable=0x2a170e80, tstate=<optimized out>) at
../Include/cpython/abstract.h:118
#8 PyObject_Vectorcall (kwnames=0x0, nargsf=<optimized out>, args=<optimized
out>, callable=0x2a170e80)
at ../Include/cpython/abstract.h:127
#9 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic
pointer>, tstate=0x4154e8)
at ../Python/ceval.c:5044
#10 _PyEval_EvalFrameDefault (tstate=<optimized out>, f=<optimized out>,
throwflag=<optimized out>)
at ../Python/ceval.c:3490
#11 0x295cac90 in _PyEval_EvalFrame (throwflag=0, f=0x2a1b5318,
tstate=0x4154e8) at ../Include/internal/pycore_ceval.h:40
#12 function_code_fastcall (tstate=0x4154e8, co=<optimized out>,
args=0x2a1b1574, nargs=1, globals=0x2a1a3ca8)
at ../Objects/call.c:329
#13 0x2960d990 in _PyFunction_Vectorcall (func=<optimized out>,
stack=0x2a1b1570, nargsf=<optimized out>,
kwnames=<optimized out>) at ../Objects/call.c:366
#14 0x295d1ae0 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=<optimized
out>, args=<optimized out>,
callable=0x2a1af460, tstate=<optimized out>) at
../Include/cpython/abstract.h:118
#15 PyObject_Vectorcall (kwnames=0x0, nargsf=<optimized out>, args=<optimized
out>, callable=0x2a1af460)
at ../Include/cpython/abstract.h:127
Disassembly:
(gdb) x/-10i $pc
0x296318d4 <long_richcompare+132>: rts
0x296318d6 <long_richcompare+134>: mov.l @r15+,r8
0x296318d8 <long_richcompare+136>: mov.l 0x296318f4
<long_richcompare+164>,r0 ! 0x8b8
0x296318da <long_richcompare+138>: mov.l @(r0,r12),r0
0x296318dc <long_richcompare+140>: mov.l @r0,r1
0x296318de <long_richcompare+142>: add #1,r1
0x296318e0 <long_richcompare+144>: mov.l r1,@r0
0x296318e2 <long_richcompare+146>: mov.l @r15+,r12
0x296318e4 <long_richcompare+148>: rts
0x296318e6 <long_richcompare+150>: mov.l @r15+,r8
(gdb) x/10i $pc
=> 0x296318e8 <long_richcompare+152>: mov.l r9,@(16,r13)
0x296318ea <long_richcompare+154>: mov.b @(r0,r3),r0
0x296318ec <long_richcompare+156>: .word 0x0000
0x296318ee <long_richcompare+158>: .word 0x0100
0x296318f0 <long_richcompare+160>: .word 0x0a70
0x296318f2 <long_richcompare+162>: .word 0x0000
0x296318f4 <long_richcompare+164>: .word 0x08b8
0x296318f6 <long_richcompare+166>: .word 0x0000
0x296318f8 <long_richcompare+168>: mova 0x29631904
<long_richcompare+180>,r0
0x296318fa <long_richcompare+170>: add r6,r6
(gdb)
Full build log in:
https://buildd.debian.org/status/fetch.php?pkg=python3.9&arch=sh4&ver=3.9.0-1&stamp=1601938112&raw=0
Let me know where to dig next.
