Bug#601419: libc6: please build a loongson-2f optimized library
See http://sources.redhat.com/bugzilla/show_bug.cgi?id=12193 -- Robert Millan -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlktinmu6=x5fq7-barvdqxqfoph=qhp03zq_o2p...@mail.gmail.com
Bug#601419: libc6: please build a loongson-2f optimized library
Robert Millan a écrit : See http://sources.redhat.com/bugzilla/show_bug.cgi?id=12193 I am not sure you want to define an octeon2 platform. Contrary to longsoon which has specific instructions, octeon is following the standard MIPS instruction sets. It would make more sense to export MIPS32, 32R2, 64 and 64R2 capabilities. Having a MIPS32 optimized library eglibc makes a lot of sense for the vast majority of CPU we target (except longsoon). -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4cd2ef17.6090...@aurel32.net
Bug#601419: libc6: please build a loongson-2f optimized library
2010/11/4 Aurelien Jarno aurel...@aurel32.net: Robert Millan a écrit : See http://sources.redhat.com/bugzilla/show_bug.cgi?id=12193 I am not sure you want to define an octeon2 platform. Contrary to longsoon which has specific instructions, octeon is following the standard MIPS instruction sets. It would make more sense to export MIPS32, 32R2, 64 and 64R2 capabilities. Having a MIPS32 optimized library eglibc makes a lot of sense for the vast majority of CPU we target (except longsoon). Thanks for the correction. Do you mind if I add this to upstream's bug log? -- Robert Millan -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlktikqnlsfvv2ezvhttbpc8ksmbpv_kn_pnkwcs...@mail.gmail.com
Bug#601419: libc6: please build a loongson-2f optimized library
On Thu, Nov 04, 2010 at 07:31:14PM +0100, Robert Millan wrote: 2010/11/4 Aurelien Jarno aurel...@aurel32.net: Robert Millan a écrit : See http://sources.redhat.com/bugzilla/show_bug.cgi?id=12193 I am not sure you want to define an octeon2 platform. Contrary to longsoon which has specific instructions, octeon is following the standard MIPS instruction sets. It would make more sense to export MIPS32, 32R2, 64 and 64R2 capabilities. Having a MIPS32 optimized library eglibc makes a lot of sense for the vast majority of CPU we target (except longsoon). Thanks for the correction. Do you mind if I add this to upstream's bug log? No problem from my side. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20101104183821.ge17...@hall.aurel32.net
Bug#601419: libc6: please build a loongson-2f optimized library
2010/11/1 Robert Millan r...@debian.org: 2010/10/31 Aurelien Jarno aurel...@aurel32.net: Wrong, for alpha we have code to add hardware capabilities support. I'm a bit confused now. I looked at the code in debian/patches/, and Never mind, I figured it out. It seems Linux should set AT_PLATFORM variable, which it doesn't yet. -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlktin7zfansyvxxz1yvtriuj09zdga5tpknkmj4...@mail.gmail.com
Bug#601419: libc6: please build a loongson-2f optimized library
2010/10/31 Aurelien Jarno aurel...@aurel32.net: Wrong, for alpha we have code to add hardware capabilities support. I'm a bit confused now. I looked at the code in debian/patches/, and it adds some functions internal declarations, but I can't see where's the actual hardware detection. Can you give me some pointer? I know how to probe for loongson but I'm unsure where should this code be plugged. I assume similar changes to the ones in debian/patches/alpha/ will be needed, but still something seems missing. -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlkti=brgctx-v1wd2=1elp5r1vwv9wll3gd5y7l...@mail.gmail.com
Bug#601419: libc6: please build a loongson-2f optimized library
2010/10/30 Aurelien Jarno aurel...@aurel32.net: I don't see any loongson-2f hardware capabilities in the current (e)glibc code. Yes. Note that it isn't the only one in this situation (libc6.1-alphaev67). How is it handled? One could use LD_LIBRARY_PATH, or enable it system-wide with: echo /lib/loongson-2f /etc/ld.so.conf.d/loongson-2f.conf ldconfig Both approaches are tested on my Yeeloong. -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlktin5ok3jmi4som8ifaogwizgz473_+ynndow4...@mail.gmail.com
Bug#601419: libc6: please build a loongson-2f optimized library
On Sun, Oct 31, 2010 at 01:44:18PM +0100, Robert Millan wrote: 2010/10/30 Aurelien Jarno aurel...@aurel32.net: I don't see any loongson-2f hardware capabilities in the current (e)glibc code. Yes. Note that it isn't the only one in this situation (libc6.1-alphaev67). Wrong, for alpha we have code to add hardware capabilities support. How is it handled? One could use LD_LIBRARY_PATH, or enable it system-wide with: echo /lib/loongson-2f /etc/ld.so.conf.d/loongson-2f.conf ldconfig Then the description for the package is wrong. Also I don't really like this solution, we should support hardware capabilities so that users have nothing to do. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20101031130440.ga5...@volta.aurel32.net
Bug#601419: libc6: please build a loongson-2f optimized library
On Tue, Oct 26, 2010 at 12:18:44AM +0200, Robert Millan wrote: Package: libc6 Version: 2.11.2-6 Severity: wishlist Tags: patch Please could you build a loongson-2f optimized library? A (tested) patch is attached. I don't see any loongson-2f hardware capabilities in the current (e)glibc code. How is it handled? Is the library used on loongson-2f CPU? Only on them? -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20101030091944.ga6...@volta.aurel32.net
Bug#601419: libc6: please build a loongson-2f optimized library
Package: libc6
Version: 2.11.2-6
Severity: wishlist
Tags: patch
Please could you build a loongson-2f optimized library?
A (tested) patch is attached.
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: mipsel (mips64)
Kernel: Linux 2.6.35.7-libre2-lemote (PREEMPT)
Locale: LANG=ca_AD.UTF-8, LC_CTYPE=ca_AD.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libc6 depends on:
ii libc-bin 2.11.2-6 Embedded GNU C Library: Binaries
ii libgcc1 1:4.4.5-2 GCC support library
libc6 recommends no packages.
Versions of packages libc6 suggests:
ii debconf [debconf-2.0] 1.5.35 Debian configuration management sy
pn glibc-doc none (no description available)
ii locales 2.11.2-6 Embedded GNU C Library: National L
-- debconf information excluded
diff -ur -x control eglibc-2.11.2/debian/control.in/opt eglibc-2.11.2.new/debian/control.in/opt
--- eglibc-2.11.2/debian/control.in/opt 2010-10-22 14:13:56.0 +0200
+++ eglibc-2.11.2.new/debian/control.in/opt 2010-10-20 11:58:09.0 +0200
@@ -107,3 +107,18 @@
needs to be installed on Alpha EV67/68 and EV7 machines. If you install
this on an older machine, it won't even be used.
+Package: libc6-loongson-2f
+Architecture: mipsel
+Section: libs
+Priority: extra
+Pre-Depends: libc6 (= ${binary:Version})
+Depends: ${misc:Depends}
+Description: Embedded GNU C Library: Shared libraries [Loongson 2F optimized]
+ Contains the standard libraries that are used by nearly all programs on
+ the system. This package includes shared versions of the standard C
+ library and the standard math library, as well as many others.
+ .
+ This set of libraries is optimized for the Loongson 2F. It only
+ needs to be installed on Lemote Loongson 2F machines. If you install
+ this on a non-Loongson, it won't even be used.
+
diff -ur -x control eglibc-2.11.2/debian/script.in/nohwcap.sh eglibc-2.11.2.new/debian/script.in/nohwcap.sh
--- eglibc-2.11.2/debian/script.in/nohwcap.sh 2010-10-22 14:13:56.0 +0200
+++ eglibc-2.11.2.new/debian/script.in/nohwcap.sh 2010-10-20 11:58:09.0 +0200
@@ -16,6 +16,9 @@
kfreebsd-i386)
hwcappkgs=libc0.1-i686
;;
+mipsel)
+ hwcappkgs=libc6-loongson-2f
+ ;;
sparc)
hwcappkgs=libc6-sparcv9 libc6-sparcv9b
;;
diff -ur -x control eglibc-2.11.2/debian/sysdeps/mipsel.mk eglibc-2.11.2.new/debian/sysdeps/mipsel.mk
--- eglibc-2.11.2/debian/sysdeps/mipsel.mk 2010-10-22 14:13:56.0 +0200
+++ eglibc-2.11.2.new/debian/sysdeps/mipsel.mk 2010-10-21 12:50:06.0 +0200
@@ -24,6 +24,18 @@
mips64_libdir = /usr/lib64
mips64_extra_config_options := $(extra_config_options) --disable-profile
+# build a loongson-2f optimized library
+EGLIBC_PASSES += loongson-2f
+DEB_ARCH_REGULAR_PACKAGES += libc6-loongson-2f
+loongson-2f_add-ons = ports nptl $(add-ons)
+loongson-2f_configure_target = mips32el-linux-gnu
+loongson-2f_CC = $(CC) -mabi=32
+loongson-2f_CXX = $(CXX) -mabi=32
+loongson-2f_extra_cflags = -march=loongson2f -mtune=loongson2f -O2
+loongson-2f_extra_config_options = $(extra_config_options) --disable-profile
+loongson-2f_rtlddir = /lib
+loongson-2f_slibdir = /lib/loongson-2f
+
# Need to put a tri-arch aware version of ldd in the base package
define mipsn32_extra_install
cp debian/tmp-mipsn32/usr/bin/ldd debian/tmp-libc/usr/bin
