Buildresult: linus/um-defconfig/um-x86_64 built on Apr 3 2018, 18:20

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Apr 3 2018, 18:20
Duration:	0:00:37.403861
Builder:	ka2
Revision:	Merge branch 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux (`642e7fd23353e22290e3d51719fcb658dc252342)`
Target:	linus/um-defconfig/um-x86_64
Branch:	linus
Compiler:	um-x86_64 (x86_64-linux-gcc.br_real (Buildroot 2017.05) 5.4.0)
Config:	defconfig (download)
Log:	Download original Possible warnings (1) arch/um/os-Linux/skas/process.c:613:1: warning: control reaches end of non-void function [-Wreturn-type] Full Log # git rev-parse -q --verify 642e7fd23353e22290e3d51719fcb658dc252342^{commit} 642e7fd23353e22290e3d51719fcb658dc252342 already have revision, skipping fetch # git checkout -q -f -B kisskb 642e7fd23353e22290e3d51719fcb658dc252342 # git clean -qxdf # < git log -1 # commit 642e7fd23353e22290e3d51719fcb658dc252342 # Merge: 2103596 c9a2119 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Mon Apr 2 21:22:12 2018 -0700 # # Merge branch 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux # # Pull removal of in-kernel calls to syscalls from Dominik Brodowski: # "System calls are interaction points between userspace and the kernel. # Therefore, system call functions such as sys_xyzzy() or # compat_sys_xyzzy() should only be called from userspace via the # syscall table, but not from elsewhere in the kernel. # # At least on 64-bit x86, it will likely be a hard requirement from # v4.17 onwards to not call system call functions in the kernel: It is # better to use use a different calling convention for system calls # there, where struct pt_regs is decoded on-the-fly in a syscall wrapper # which then hands processing over to the actual syscall function. This # means that only those parameters which are actually needed for a # specific syscall are passed on during syscall entry, instead of # filling in six CPU registers with random user space content all the # time (which may cause serious trouble down the call chain). Those # x86-specific patches will be pushed through the x86 tree in the near # future. # # Moreover, rules on how data may be accessed may differ between kernel # data and user data. This is another reason why calling sys_xyzzy() is # generally a bad idea, and -- at most -- acceptable in arch-specific # code. # # This patchset removes all in-kernel calls to syscall functions in the # kernel with the exception of arch/. On top of this, it cleans up the # three places where many syscalls are referenced or prototyped, namely # kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h" # # * 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits) # bpf: whitelist all syscalls for error injection # kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions # kernel/sys_ni: sort cond_syscall() entries # syscalls/x86: auto-create compat_sys_() prototypes # syscalls: sort syscall prototypes in include/linux/compat.h # net: remove compat_sys_() prototypes from net/compat.h # syscalls: sort syscall prototypes in include/linux/syscalls.h # kexec: move sys_kexec_load() prototype to syscalls.h # x86/sigreturn: use SYSCALL_DEFINE0 # x86: fix sys_sigreturn() return type to be long, not unsigned long # x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm() # mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead() # mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() # mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64() # fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate() # fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls # fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate() # fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall # kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid() # kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare() # ... # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 642e7fd23353e22290e3d51719fcb658dc252342 # < make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig # make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/arch/um/os-Linux/skas/process.c: In function 'start_idle_thread': /kisskb/src/arch/um/os-Linux/skas/process.c:613:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ LINK linux Completed OK # rm -rf /kisskb/build/linus_um-defconfig_um-x86_64 # Build took: 0:00:37.403861

© Michael Ellerman 2006-2018.