| Karim BELABAS on Sat, 3 Oct 1998 13:44:50 +0200 (MET DST) |
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| Re: -KPIC |
[Ilya:]
> Do I understand it correct that PARI cannot be put into a shared
> library nowadays? I tried to compile sparc assembler with -K PIC, and
> got a segfault.
>
> AFAIK Solaris allows DLLs without -K PIC, but they are not shared. Do
> not know about SunOS4. Most anyone else requires PIC for shared
> libraries - except platforms which have "hard linking" DLLs without
> any relocation, like OS/2, AIX, DG-UX (?).
>
> Is there any architecture ((except port ;-) which requires PIC, and
> PARI supports it? Currently the prospect of having PARI as
> DynaLoadable Perl extension looks kinda moot...
Very weird; could you be more specific? On most architectures mentionned in
the MACHINES file (including solaris-[super|micro|ultra]sparc), a
DLL libpari.so could be built, gp-dyn linked with it and gave sensible
running times. In my experience, (with gcc mostly) -fPIC flag is not needed
and, when used, give disastrous results (_slow_ binaries).
HPUX was a (hard) special case and the only one I could test where gcc
-fPIC / cc +z was actually needed (and giving an executable about least
twice slower).
Karim.
P.S: Here's my current (2.0.12 not released yet) MACHINES file
Bench (in ms)
Arch / proc: OS: Configure: sta: dyn: GP version:
==============================================================================
DEC/Alpha
alpha21164 600MHz OSF1-V4.0D cc X11 dl2 3996 4384 2.0.10 LG
alpha21164 533Mhz Linux 2.0.34 gcc X11 dl2 5105 5031 2.0.10 JC
alpha21164 500Mhz Linux-2.0.30 gcc X11 dl2 4806 4791 2.0.12
alpha21064 172Mhz OSF1-3.0 cc X11 dl2 30208 29754 2.0.12
------------------------------------------------------------------------------
Sun/SPARC
UltraSPARC10 300MHz Solaris-2.6 gcc X11 dl2 5932 6102 2.0.12 GN
UltraSPARC 300MHz Solaris-2.5 gcc X11 dl2 7643 7566 2.0.9 IS
UltraSPARC2i 270MHz Solaris-2.6 gcc X11 dl2 7068 7218 2.0.10 LG
UltraSPARC2i 270MHz Solaris-2.6 cc X11 dl2 9200 9970 2.0.10 LG
UltraSPARC 167MHz Solaris-2.6 gcc X11 dl2 9790 10158 2.0.12 GN
UltraSPARC 167MHz Solaris-2.5 gcc X11 dl2 10257 10125 2.0.12
UltraSPARC 167MHz Solaris-2.5 g++ X11 dl2 13474 13418 2.0.9 (7)LG
UltraSPARC 167MHz Solaris-2.5 CC X11 - 15778 16400 2.0.9 LG
UltraSPARC 167MHz Solaris-2.5 cc X11 dl2 16241 17048 2.0.9 LG
UltraSPARC 143MHz Solaris-2.5 gcc X11 dl2 11335 11613 2.0.12
SuperSPARC2 75MHz Solaris-2.5 gcc X11 dl2 16969 17013 2.0.10 LG
SuperSPARC 40MHz SunOS-4.1.3 gcc X11 dl2 28254 28394 2.0.12
SuperSPARC 40Mhz Solaris-2.5 gcc X11 dl2 27828 28353 2.0.12
TurboSPARC 170MHz Solaris-2.5 gcc X11 dl2 15907 16529 2.0.9 LG
MicroSPARC2 110MHz NextStep-v3 cc - - 37794 - 2.0.9 LG
MicroSPARC2 110MHz SunOS-4.1.4 gcc X11 dl2 31476 32123 2.0.9 LG
MicroSPARC2 110MHz Solaris-2.5 gcc X11 dl2 22664 23406 2.0.12
SPARCv7(SS2) 40MHz SunOS-4.1.3 gcc X11 dl 115212 115364 2.0.9 LG
SPARCv7(ELC) 33MHz SunOS-4.1.1 gcc X11 - 139406 - 2.0.8 GN
------------------------------------------------------------------------------
Intel/x86
PentiumII 333Mhz Linux-2.0.32 gcc X11 dl2 5006 4762 2.0.10 JC
PentiumII 300MHz NextStep-3.3 cc - - 5325 - 2.0.10
Pentium 266Mhz Linux-2.0.29 gcc X11 dl2 7256 7044 2.0.11
PentiumII 233MHz FreeBSD-2.2.5 gcc X11 dl2 6251 6114 2.0.11
PentiumPro 200MHz Linux-2.0.27 gcc X11 dl2 12088 12214 2.0.4k
Pentium 200Mhz NextStep-3.3 cc - - 16035 - 2.0.6 MS
Pentium 166MHz FreeBSD-2.2.5 gcc X11 dl2 15159 14481 2.0.11
Pentium 166MHz Solaris-2.6 gcc X11 dl2 13550 13746 2.0.12 GN
Pentium 133MHz Linux-1.2.8 gcc X11 - 15448 - 2.0.12(5)GN
Pentium 133MHz FreeBSD-2.2.5 gcc X11 dl2 15231 17259 2.0.10 KK
486dx2 50MHz Linux-2.0.33 gcc X11 dl2 213710 216224 2.0.9 LG
486dx 50MHz DOS-5.0 gcc - - 77639 - 2.0.12
*i860 40MHz Concentrix cc X11 - 147989 - 2.0.9 LG
------------------------------------------------------------------------------
Motorola
*MC68040 25MHz NextStep-v2 cc - - 250542 - 2.0.9 LG
MC68030 25MHz SunOS-4.0.3 gcc X11 - 683736 685248 2.0.9 (4)
*MC68030 25MHz SunOS-4.0.3 gcc X11 - 1034136 1038368 2.0.9
------------------------------------------------------------------------------
IBM/POWER,PowerPC
*PPC604e 233MHz AIX-4.2 cc X11 - 8616 - 2.0.12(3)GN
*PPC604 133MHz AIX-4.2 cc X11 - 21528 - 2.0.4 (3)GN
*PPC601 100MHz AIX-4.1 cc X11 - 21692 - 2.0.4 (3)GN
*PPC601 75MHz Linux-2.1.24 gcc - dl2 51810 52702 2.0.9 EK
*PPC601 66MHz AIX-3.2.5 cc X11 - 66280 - 2.0.4 (3)GN
*POWER2 66MHz AIX-4.2 cc X11 - 37592 - 2.0.4 (3)GN
------------------------------------------------------------------------------
SGI/MIPS
*R4000 50/70MHz IRIX-5.2 gcc X11 dl2 70764 70114 2.0.9 (1)TP
*R4000 50/70MHz IRIX-5.2 cc X11 dl2 81467 80176 2.0.9 (2)TP
*R10000 196MHz IRIX-6.4 cc X11 dl2 8461 9856 2.0.10(8)TP
------------------------------------------------------------------------------
HP/PA-RISC
HPPA9000/778 134MHz HPUX-10.20 cc X11 - 16276 29212 2.0.12(9)
*HPPA9000/778 134MHz HPUX-10.20 cc X11 - 23666 2.0.12(10)
HPPA9000/735 100MHz HPUX-10.20 cc X11 - 25106 38898 2.0.12(9)
HPPA9000/720 ??? HPUX-10.20 cc X11 - 66138 - 2.0.9
*HPPA9000/720 ??? HPUX-10.20 cc X11 - 101114 119626 2.0.9
HPPA9000/712 90MHz HPUX-10.20 cc X11 - 26756 45196 2.0.12(9)
*HPPA9000/712 ??? HPUX-10.10 gcc X11 - 66328 71250 2.0.5 (6)
*HPPA7100LC 60MHz NextStep-v3 cc - - 62866 - 2.0.10 LG
*HPPA7000 50MHz HPUX-09.05 cc X11 - 113406 152778 2.0.9 LG
------------------------------------------------------------------------------
Notes:
======
(1) uncomment the last PLOTLIBS= in Makefile
(2) same as above, compiled with cc -O2
(3) AIX/POWER versions built with cc options including
-qarch=com -qtune=601 (any other tuning makes them slower)
(4) Slightly different results in make bench (last decimal different in
3 tests, due to a different mulsr())
(5) built with gcc 2.7.2p
(6) gcc -fPIC (otherwise /usr/bin/ld will not link the shared library)
(7) the `program' bench fails on "install(addii)". But if the symbol addii
is declared within extern "C" {} in paridecl.h, it works.
(8) use
CC = cc -64
CFLAGS = -O -OPT:Olimit=2170
LD = cc -64
LDFLAGS = -O -L/usr/lib64
DLLD = cc -64
DLLDFLAGS = -shared -elf -no_unresolved -all -L/usr/lib64
CPP = cc -64 -E -I.
(9) * for gp-dyn: in o-hpux.hppa/Makefile, move kernel.o from OBJS to OBJSGP. I
couldn't find a way to have HP as (needed since gas doesn't understand our
syntax) to produce PIC code, hence kernel.o has to be linked explicitly with
all programs compiled with libpari.sl
* for gp-sta: remove +z from CFLAGS, final link only worked with the
following command line (there has to be a better way...):
cc dummy.c -c
cc -o gp-sta -Wl,-a,archive -O dummy.o [... rest as produced by Configure]
where dummy.c defines two dummy symbols (referenced in static libc):
shl_findsym(){}
shl_load(){}
Whatever else I tried, linking failed:
/usr/ccs/bin/ld: Data address is out of range for short load or store
Reference from: kernel.o(0x8) [for all symbols defined in level0.s]
(10) compiled without +z flags
--
Karim Belabas email: Karim.Belabas@math.u-psud.fr
Dep. de Mathematiques, Bat. 425
Universite Paris-Sud Tel: (00 33) 1 69 15 57 48
F-91405 Orsay (France) Fax: (00 33) 1 69 15 60 19
--
PARI/GP Home Page: http://pari.home.ml.org