similar to: [PATCH V2 0/3] Introduce arm64 support

Hello, This series introduces arm64 support to klibc. I've rebased the work from Neil Williams and Anil Singhar into the following three patches. Most of the code changes are due to new syscall implementations being needed for arm64 as a only a minimal set of syscalls are defined in the arm64 kernel. This series is to be applied against the latest klibc, just after 25a66fa README.klibc:

Hi All: We have some patches to port klibc to ArmV8. The first set of patches from Neil Williams fixes the build issues. The second set of patches from Anil Singhar fixes functionalities. The following files have changed in the second set of patches ------------------------------------------------------------------------------------------ usr/include/arch/aarch64/klibc/archconfig.h

On 11/08/2013 09:12 AM, Steve Capper wrote: > diff --git a/usr/klibc/open64.c b/usr/klibc/open64.c > new file mode 100644 > index 0000000..6ca603e > --- /dev/null > +++ b/usr/klibc/open64.c > @@ -0,0 +1,22 @@ > +/* > + * open64.c > + * > + * For 64 bit systems without the open syscall, pass straight > + * through into openat. > + */ > + > +#define

On Wed, 9 Oct 2013 15:51:32 +0200 maximilian attems <maks at stro.at> wrote: > On Wed, Oct 09, 2013 at 03:14:44PM +0530, Anil Singhar wrote: > > Hi All: > > > > We have some patches to port klibc to ArmV8. > > > > The first set of patches from Neil Williams fixes the build issues. > > The second set of patches from Anil Singhar fixes functionalities.

Hi, after a year, I decided to hack on klibc again. I?ve reworked both the patch to add mkstemp(), discussing to use AT_RANDOM as cheap entropy source on IRC (if there will ever be another entropy consumer, I can quickly write a minimal arc4random() seeded from it, as it has only 16 octets), capable of making a working mksh (static and shared) on amd64/xen, and the m68k support code, leading to

Hi, I?ve gone through the mailing list archives and hereby want to resubmit my pending patches. Most are independent of each other, except the m68k patch which will only be complete if sigsuspend is also fixed. (It can be applied before that, though.) http://www.zytor.com/pipermail/klibc/2012-January/003173.html [PATCH] fix m68k support Resubmitted here as 0005. While there was a question from

Use klibc way to define a system dependent preprocessor definition: disabled by default and enabled for newer arm. Based on a patch by vorlon that got tested on his beagleboard, should be functional equivalent. Fixes: https://bugs.launchpad.net/ubuntu/+source/klibc/+bug/527720 Cc: Steve Langasek <steve.langasek at canonical.com> Cc: Kirill A. Shutemov <kirill at shutemov.name> Cc:

Hi, number three, where I first thought it was a GCC bug but is apparently bad code in klibc. Submitted with permission: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47533#c6 Patch attached again (sorry) not just because that is easier with my mail system but also to keep original author intact. bye, //mirabilos -- > emacs als auch vi zum Kotzen finde (joe rules) und pine f?r den einzig >

Commit-ID: 8858e8319655ef38398e0833b71d65b0e620a061 Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=8858e8319655ef38398e0833b71d65b0e620a061 Author: Steve Capper <steve.capper at linaro.org> AuthorDate: Mon, 11 Nov 2013 17:04:11 +0000 Committer: H. Peter Anvin <hpa at zytor.com> CommitDate: Mon, 11 Nov 2013 19:31:13 -0800 [klibc] syscalls: Add syscalls

Details of the changes in second patch set as outlined in the first mail of this series: -------------------------------------------------------------------------------------------------------------------------- diff --git a/usr/include/arch/aarch64/klibc/archconfig.h b/usr/include/arch/aarch64/klibc/archconfig.h index 5cc1e7e..5ee278d 100644 --- a/usr/include/arch/aarch64/klibc/archconfig.h +++

arm64 uses generic syscalls, and does not include the "noat", "noflags", and "deprecated" syscalls. i.e. __ARCH_WANT_SYSCALL_{NO_AT|NO_FLAGS|DEPRECATED} This patch adds the syscalls needed for klibc to run on arm64. Signed-off-by: Steve Capper <steve.capper at linaro.org> --- usr/klibc/Kbuild | 3 +++ usr/klibc/SYSCALLS.def | 33

New architectures only define the renameat2() system call, which was added in Linux 3.15. Define rename() and renameat() as wrappers for it if necessary. Signed-off-by: Ben Hutchings <ben at decadent.org.uk> --- --- a/usr/klibc/Kbuild +++ b/usr/klibc/Kbuild @@ -59,7 +59,8 @@ klib-y += vsnprintf.o snprintf.o vsprint inet/inet_ntoa.o inet/inet_aton.o inet/inet_addr.o \

Based on work by Neil Williams (codehelp at debian.org) and Anil Singhar (anil.singhar at linaro.org), this patch introduces arm64 support. Signed-off-by: Steve Capper <steve.capper at linaro.org> --- Makefile | 3 +- usr/include/arch/arm64/klibc/archconfig.h | 17 ++++++++++ usr/include/arch/arm64/klibc/archsetjmp.h | 20 ++++++++++++

From: Dejan Latinovic <Dejan.Latinovic at imgtec.com> --- usr/include/arch/mips64/klibc/archconfig.h | 3 + usr/include/arch/mips64/klibc/archsetjmp.h | 39 ++++++ usr/include/arch/mips64/machine/asm.h | 76 ++++++++++ usr/include/fcntl.h | 2 +- usr/include/sys/md.h | 1 + usr/include/sys/resource.h | 4 +-

In preparation for the klibc 2.0.5 release I wrote a basic test script which: 1. Builds for each architecture (with a cross-compiler where needed) 2. Runs several statically-linked programs (using qemu-user where needed): a. Many self-test programs b. "sh -c exit" c. "sh -c '.../bin/true; exit'" The results for the architectures I was able to test are:

I have updated the klibc patchset based on feedback received. In particular, the patchset has been reorganized so as not to break git-bisect. Additionally, this updates the patch base to 2.6.17-git12 (d38b69689c349f35502b92e20dafb30c62d49d63) and klibc 1.4.8; the main difference on the klibc side is removal of obsolete code. This is also available as a git tree at:

On 11/08/2013 09:12 AM, Steve Capper wrote: > + > +/* > + * x19-x28 are callee saved, also save fp, lr, sp. > + * d8-d15 are also callee saved. > + */ > + > +struct __jmp_buf { > + uint64_t __gregs[13]; > + uint64_t __fpregs[8]; > +}; > + Since the index of these arrays have no connection with what is stored in them, they should be named fields in the structure,

Commit-ID: 45647d9f97cac184d399eae9bcbe24aef2223f70 Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=45647d9f97cac184d399eae9bcbe24aef2223f70 Author: H. Peter Anvin <hpa at zytor.com> AuthorDate: Mon, 11 Nov 2013 19:33:40 -0800 Committer: H. Peter Anvin <hpa at zytor.com> CommitDate: Mon, 11 Nov 2013 19:33:40 -0800 [klibc] arm64: remove useless

hello vorlon, got notified of your patch, will apply next days upstream unless some critiques are voiced on ml. thanks. -- maks ----- Forwarded message from Steve Langasek <steve.langasek at canonical.com> ----- Date: Wed, 16 Feb 2011 22:05:42 -0000 From: Steve Langasek <steve.langasek at canonical.com> Subject: [Bug 527720] Re: thumb2 porting issues identified: klibc uses

Commit-ID: e4a2c914446ba907c5aaccf6ae1d089a09d21df7 Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=e4a2c914446ba907c5aaccf6ae1d089a09d21df7 Author: Steve Capper <steve.capper at linaro.org> AuthorDate: Mon, 11 Nov 2013 17:04:12 +0000 Committer: H. Peter Anvin <hpa at zytor.com> CommitDate: Mon, 11 Nov 2013 19:31:31 -0800 [klibc] arm64: Add arm64 support