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Re: Latest mips/evbmips observations
Hello,
On Wed, 30 Apr 2014 14:40:25 -0500 (CDT)
"John D. Baker" <jdbaker%mylinuxisp.com@localhost> wrote:
> Lemote YEELOONG, evbmips-mips64el
>
> So, to complicate matters, I've been building with HAVE_GCC=48. The
> kernel boots. Userland mostly works. Mostly same problems from before,
> a few new wrinkles...
4.8 seems to do not much worse than 4.5 on MIPS.
> The very few packages I managed to build using gcc 4.5.4 (sudo and lynx)
> seem to work fine with the gcc-4.8.3-built kernel/libraries.
I found out where the gcc crash is coming from - it's libgmp, namely
the assembler code. For n32 it uses code that assumes LP64, which leads
to occasional unaligned accesses which in turn crash gcc.
So I made a patch that uses generic C code instead on n32 ( see attachment )
With this, at least gcc doesn't crash anymore and it produced a few
working binaries with -O2.
> Changed behavior:
>
> > X server: the undefined symbol issues seem to have been resolved, but
> > now the server complains that it can't load the "int10" module, saying
>
> Once again failing due to an undefined symbol. Side effect of gcc48?
>
> X.Org X Server 1.10.6
> Release Date: 2011-07-08
> X Protocol Version 11, Revision 0
> Build Operating System: NetBSD/evbmips -
> Current Operating System: NetBSD chalk.technoskunk.fur 6.99.40 NetBSD 6.99.40
> (YEELOONG) #2: Tue Apr 29 12:13:16 CDT 2014
> sysop%verthandi.technoskunk.fur@localhost:/d0/build/current/obj/mips64el/sys/arch/evbmips/compile/YEELOONG
> evbmips
> Build Date: 01 August 2011 01:01:00AM
>
> Current version of pixman: 0.32.4
> Before reporting problems, check http://wiki.X.Org
> to make sure that you have the latest version.
> Markers: (--) probed, (**) from config file, (==) default setting,
> (++) from command line, (!!) notice, (II) informational,
> (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Tue Apr 29 18:06:06 2014
> (==) Using default built-in configuration (12 lines)
> (EE) Failed to load /usr/X11R7/lib/modules/drivers/siliconmotion_drv.so:
> /usr/X11R7/lib/modules/drivers/siliconmotion_drv.so: Undefined symbol
> "exaOffscreenFree" (symnum = 101)
> (EE) Failed to load module "siliconmotion" (loader failed, 7)
> (EE) No drivers available.
>
> Fatal server error:
> no screens found
>
> Please consult the The X.Org Foundation support
> at http://wiki.X.Org
> for help.
> Please also check the log file at "/var/log/Xorg.0.log" for additional
> information.
I've seen that too ( or rather, something similar ). Didn't get to investigate
yet.
> wscons switching doesn't always repaint the display completely, leaving
> characters from another virtual terminal on the screen. The specific
> case was running 'lynx' in one terminal with an unordered list displayed.
> Two spaces to the left of each list item a single character from the
> corresponding position of the previous virtual terminal was displayed.
Which driver is that?
have fun
Michael
? dist/mpn/mips64/32
Index: lib/libgmp/arch/mips64eb/Makefile.inc
===================================================================
RCS file:
/cvsroot/src/external/lgpl3/gmp/lib/libgmp/arch/mips64eb/Makefile.inc,v
retrieving revision 1.5
diff -u -w -r1.5 Makefile.inc
--- lib/libgmp/arch/mips64eb/Makefile.inc 4 Dec 2013 00:49:18 -0000
1.5
+++ lib/libgmp/arch/mips64eb/Makefile.inc 1 May 2014 00:48:23 -0000
@@ -174,6 +174,24 @@
sbpi1_div_r_sec.c mpn/generic/sbpi1_div_sec.c \
andn_n.c mpn/generic/logops_n.c \
+.if (defined(CPUFLAGS) && !empty(CPUFLAGS:M-mabi=64))
+GMP_LIMB_BITS=64
+C_SRCS_LIST= \
+ xor_n.c mpn/generic/logops_n.c \
+ sb_div_r_sec.c mpn/generic/sb_div_sec.c \
+ nand_n.c mpn/generic/logops_n.c \
+ nior_n.c mpn/generic/logops_n.c \
+ hamdist.c mpn/generic/popham.c \
+ popcount.c mpn/generic/popham.c \
+ sbpi1_div_qr_sec.c mpn/generic/sbpi1_div_sec.c \
+ and_n.c mpn/generic/logops_n.c \
+ ior_n.c mpn/generic/logops_n.c \
+ sb_div_qr_sec.c mpn/generic/sb_div_sec.c \
+ xnor_n.c mpn/generic/logops_n.c \
+ iorn_n.c mpn/generic/logops_n.c \
+ sbpi1_div_r_sec.c mpn/generic/sbpi1_div_sec.c \
+ andn_n.c mpn/generic/logops_n.c \
+
ASM_SRCS_LIST= \
sqr_diagonal.asm mpn/mips64/sqr_diagonal.asm \
add_n.asm mpn/mips64/add_n.asm \
@@ -185,10 +203,43 @@
addmul_1.asm mpn/mips64/addmul_1.asm \
sub_n.asm mpn/mips64/sub_n.asm \
-.if (defined(CPUFLAGS) && !empty(CPUFLAGS:M-mabi=64))
-GMP_LIMB_BITS=64
.else
GMP_LIMB_BITS=32
+C_SRCS_LIST= \
+ xor_n.c mpn/generic/logops_n.c \
+ sb_div_r_sec.c mpn/generic/sb_div_sec.c \
+ nand_n.c mpn/generic/logops_n.c \
+ nior_n.c mpn/generic/logops_n.c \
+ hamdist.c mpn/generic/popham.c \
+ popcount.c mpn/generic/popham.c \
+ sbpi1_div_qr_sec.c mpn/generic/sbpi1_div_sec.c \
+ and_n.c mpn/generic/logops_n.c \
+ ior_n.c mpn/generic/logops_n.c \
+ sb_div_qr_sec.c mpn/generic/sb_div_sec.c \
+ xnor_n.c mpn/generic/logops_n.c \
+ iorn_n.c mpn/generic/logops_n.c \
+ sbpi1_div_r_sec.c mpn/generic/sbpi1_div_sec.c \
+ andn_n.c mpn/generic/logops_n.c \
+ addn_n.c mpn/generic/add_n.c \
+ submul_1.c mpn/generic/submul_1.c \
+ lshift.c mpn/generic/lshift.c \
+ mul_1.c mpn/generic/mul_1.c \
+ rshift.c mpn/generic/rshift.c \
+ sub_n.c mpn/generic/sub_n.c \
+ addmul_1.c mpn/generic/addmul_1.c \
+
+ASM_SRCS_LIST= \
+# add_n.asm mpn/mips32/add_n.asm \
+# submul_1.asm mpn/mips32/submul_1.asm \
+# umul.asm mpn/mips32/umul.asm \
+# lshift.asm mpn/mips32/lshift.asm \
+# mul_1.asm mpn/mips32/mul_1.asm \
+# rshift.asm mpn/mips32/rshift.asm \
+# addmul_1.asm mpn/mips32/addmul_1.asm \
+# sub_n.asm mpn/mips32/sub_n.asm \
+
.endif
COPTS+= -Wno-error
+
+COPTS+= -Wno-error
Index: lib/libgmp/arch/mips64eb/config.h
===================================================================
RCS file: /cvsroot/src/external/lgpl3/gmp/lib/libgmp/arch/mips64eb/config.h,v
retrieving revision 1.4
diff -u -w -r1.4 config.h
--- lib/libgmp/arch/mips64eb/config.h 29 Nov 2013 13:26:16 -0000 1.4
+++ lib/libgmp/arch/mips64eb/config.h 1 May 2014 00:48:23 -0000
@@ -221,9 +221,13 @@
/* Define to 1 each of the following for which a native (ie. CPU specific)
implementation of the corresponding routine exists. */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_add_n 1
+#endif
/* #undef HAVE_NATIVE_mpn_add_n_sub_n */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_add_nc 1
+#endif
/* #undef HAVE_NATIVE_mpn_addaddmul_1msb0 */
/* #undef HAVE_NATIVE_mpn_addcnd_n */
/* #undef HAVE_NATIVE_mpn_addlsh1_n */
@@ -272,7 +276,9 @@
/* #undef HAVE_NATIVE_mpn_invert_limb */
/* #undef HAVE_NATIVE_mpn_ior_n */
/* #undef HAVE_NATIVE_mpn_iorn_n */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_lshift 1
+#endif
/* #undef HAVE_NATIVE_mpn_lshiftc */
/* #undef HAVE_NATIVE_mpn_lshsub_n */
/* #undef HAVE_NATIVE_mpn_mod_1 */
@@ -283,7 +289,9 @@
/* #undef HAVE_NATIVE_mpn_mod_34lsub1 */
/* #undef HAVE_NATIVE_mpn_modexact_1_odd */
/* #undef HAVE_NATIVE_mpn_modexact_1c_odd */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_mul_1 1
+#endif
/* #undef HAVE_NATIVE_mpn_mul_1c */
/* #undef HAVE_NATIVE_mpn_mul_2 */
/* #undef HAVE_NATIVE_mpn_mul_3 */
@@ -308,12 +316,18 @@
/* #undef HAVE_NATIVE_mpn_rsh1add_nc */
/* #undef HAVE_NATIVE_mpn_rsh1sub_n */
/* #undef HAVE_NATIVE_mpn_rsh1sub_nc */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_rshift 1
+#endif
/* #undef HAVE_NATIVE_mpn_sqr_basecase */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_sqr_diagonal 1
+#endif
/* #undef HAVE_NATIVE_mpn_sqr_diag_addlsh1 */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_sub_n 1
#define HAVE_NATIVE_mpn_sub_nc 1
+#endif
/* #undef HAVE_NATIVE_mpn_subcnd_n */
/* #undef HAVE_NATIVE_mpn_sublsh1_n */
/* #undef HAVE_NATIVE_mpn_sublsh2_n */
@@ -331,7 +345,9 @@
/* #undef HAVE_NATIVE_mpn_tabselect */
/* #undef HAVE_NATIVE_mpn_udiv_qrnnd */
/* #undef HAVE_NATIVE_mpn_udiv_qrnnd_r */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_umul_ppmm 1
+#endif
/* #undef HAVE_NATIVE_mpn_umul_ppmm_r */
/* #undef HAVE_NATIVE_mpn_xor_n */
/* #undef HAVE_NATIVE_mpn_xnor_n */
Index: lib/libgmp/arch/mips64el/Makefile.inc
===================================================================
RCS file:
/cvsroot/src/external/lgpl3/gmp/lib/libgmp/arch/mips64el/Makefile.inc,v
retrieving revision 1.5
diff -u -w -r1.5 Makefile.inc
--- lib/libgmp/arch/mips64el/Makefile.inc 4 Dec 2013 00:49:18 -0000
1.5
+++ lib/libgmp/arch/mips64el/Makefile.inc 1 May 2014 00:48:23 -0000
@@ -158,6 +158,8 @@
redc_n.c \
sub_err1_n.c \
+.if (defined(CPUFLAGS) && !empty(CPUFLAGS:M-mabi=64))
+GMP_LIMB_BITS=64
C_SRCS_LIST= \
xor_n.c mpn/generic/logops_n.c \
sb_div_r_sec.c mpn/generic/sb_div_sec.c \
@@ -185,10 +187,41 @@
addmul_1.asm mpn/mips64/addmul_1.asm \
sub_n.asm mpn/mips64/sub_n.asm \
-.if (defined(CPUFLAGS) && !empty(CPUFLAGS:M-mabi=64))
-GMP_LIMB_BITS=64
.else
GMP_LIMB_BITS=32
+C_SRCS_LIST= \
+ xor_n.c mpn/generic/logops_n.c \
+ sb_div_r_sec.c mpn/generic/sb_div_sec.c \
+ nand_n.c mpn/generic/logops_n.c \
+ nior_n.c mpn/generic/logops_n.c \
+ hamdist.c mpn/generic/popham.c \
+ popcount.c mpn/generic/popham.c \
+ sbpi1_div_qr_sec.c mpn/generic/sbpi1_div_sec.c \
+ and_n.c mpn/generic/logops_n.c \
+ ior_n.c mpn/generic/logops_n.c \
+ sb_div_qr_sec.c mpn/generic/sb_div_sec.c \
+ xnor_n.c mpn/generic/logops_n.c \
+ iorn_n.c mpn/generic/logops_n.c \
+ sbpi1_div_r_sec.c mpn/generic/sbpi1_div_sec.c \
+ andn_n.c mpn/generic/logops_n.c \
+ addn_n.c mpn/generic/add_n.c \
+ submul_1.c mpn/generic/submul_1.c \
+ lshift.c mpn/generic/lshift.c \
+ mul_1.c mpn/generic/mul_1.c \
+ rshift.c mpn/generic/rshift.c \
+ sub_n.c mpn/generic/sub_n.c \
+ addmul_1.c mpn/generic/addmul_1.c \
+
+ASM_SRCS_LIST= \
+# add_n.asm mpn/mips32/add_n.asm \
+# submul_1.asm mpn/mips32/submul_1.asm \
+# umul.asm mpn/mips32/umul.asm \
+# lshift.asm mpn/mips32/lshift.asm \
+# mul_1.asm mpn/mips32/mul_1.asm \
+# rshift.asm mpn/mips32/rshift.asm \
+# addmul_1.asm mpn/mips32/addmul_1.asm \
+# sub_n.asm mpn/mips32/sub_n.asm \
+
.endif
COPTS+= -Wno-error
Index: lib/libgmp/arch/mips64el/config.h
===================================================================
RCS file: /cvsroot/src/external/lgpl3/gmp/lib/libgmp/arch/mips64el/config.h,v
retrieving revision 1.4
diff -u -w -r1.4 config.h
--- lib/libgmp/arch/mips64el/config.h 29 Nov 2013 13:26:16 -0000 1.4
+++ lib/libgmp/arch/mips64el/config.h 1 May 2014 00:48:23 -0000
@@ -221,9 +221,13 @@
/* Define to 1 each of the following for which a native (ie. CPU specific)
implementation of the corresponding routine exists. */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_add_n 1
+#endif
/* #undef HAVE_NATIVE_mpn_add_n_sub_n */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_add_nc 1
+#endif
/* #undef HAVE_NATIVE_mpn_addaddmul_1msb0 */
/* #undef HAVE_NATIVE_mpn_addcnd_n */
/* #undef HAVE_NATIVE_mpn_addlsh1_n */
@@ -272,7 +276,9 @@
/* #undef HAVE_NATIVE_mpn_invert_limb */
/* #undef HAVE_NATIVE_mpn_ior_n */
/* #undef HAVE_NATIVE_mpn_iorn_n */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_lshift 1
+#endif
/* #undef HAVE_NATIVE_mpn_lshiftc */
/* #undef HAVE_NATIVE_mpn_lshsub_n */
/* #undef HAVE_NATIVE_mpn_mod_1 */
@@ -283,7 +289,9 @@
/* #undef HAVE_NATIVE_mpn_mod_34lsub1 */
/* #undef HAVE_NATIVE_mpn_modexact_1_odd */
/* #undef HAVE_NATIVE_mpn_modexact_1c_odd */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_mul_1 1
+#endif
/* #undef HAVE_NATIVE_mpn_mul_1c */
/* #undef HAVE_NATIVE_mpn_mul_2 */
/* #undef HAVE_NATIVE_mpn_mul_3 */
@@ -308,12 +316,20 @@
/* #undef HAVE_NATIVE_mpn_rsh1add_nc */
/* #undef HAVE_NATIVE_mpn_rsh1sub_n */
/* #undef HAVE_NATIVE_mpn_rsh1sub_nc */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_rshift 1
+#endif
/* #undef HAVE_NATIVE_mpn_sqr_basecase */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_sqr_diagonal 1
+#endif
/* #undef HAVE_NATIVE_mpn_sqr_diag_addlsh1 */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_sub_n 1
+#endif
+#ifdef _LP64
#define HAVE_NATIVE_mpn_sub_nc 1
+#endif
/* #undef HAVE_NATIVE_mpn_subcnd_n */
/* #undef HAVE_NATIVE_mpn_sublsh1_n */
/* #undef HAVE_NATIVE_mpn_sublsh2_n */
@@ -331,7 +347,9 @@
/* #undef HAVE_NATIVE_mpn_tabselect */
/* #undef HAVE_NATIVE_mpn_udiv_qrnnd */
/* #undef HAVE_NATIVE_mpn_udiv_qrnnd_r */
+#ifdef _LP64
#define HAVE_NATIVE_mpn_umul_ppmm 1
+#endif
/* #undef HAVE_NATIVE_mpn_umul_ppmm_r */
/* #undef HAVE_NATIVE_mpn_xor_n */
/* #undef HAVE_NATIVE_mpn_xnor_n */
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