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2014-08-22linux-user: Support target-to-host translation of mlockall argumentTom Musta
The argument to the mlockall system call is not necessarily the same on all platforms and thus may require translation prior to passing to the host. For example, PowerPC 64 bit platforms define values for MCL_CURRENT (0x2000) and MCL_FUTURE (0x4000) which are different from Intel platforms (0x1 and 0x2, respectively) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-08-22linux-user: Minimum Sig Handler Stack Size for PPC64 ELF V2Tom Musta
The ELF V2 ABI for PPC64 defines MINSIGSTKSZ as 4096 bytes whereas it was 2048 previously. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-03-10linux-user: set minimum kernel version to 2.6.32Riku Voipio
Popular glibc based distributions[1] require minimum 2.6.32 as kernel version. For some targets 2.6.18 would be enough, but dropping so low would mean some suboptimal system calls could get used. Set the minimum kernel advertized to 2.6.32 for all architectures but aarch64 to ensure working qemu linux-user in case host kernel is older. [1] https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/921078 Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18linux-user: sync syscall numbers upto 3.13Riku Voipio
All others updated except unicore, which doesn't look right to begin with. Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-11-29linux-user: create target_structs header to place ipc_perm and shmid_dsPetar Jovanovic
Creating target_structs header in linux-user/$arch/ and making target_ipc_perm and target_shmid_ds its first inhabitants. The struct defintions may/should be further fine-tuned by arch maintainers. Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22linux-user: Enable NPTL for x86-64Peter Maydell
Add x86-64 implementation of cpu_set_tls() (like the kernel, we just have to call do_arch_prctl() to set FS); this allows us to enable NPTL. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22linux-user: Add i386 TLS setterAlexander Graf
We can easily set the TLS on i386. Add code to do so. Signed-off-by: Alexander Graf <agraf@suse.de> [PMM: also remove "target_nptl=no" line from configure, for consistency with other patches in this series] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22linux-user: Clean up handling of clone() argument orderPeter Maydell
Linux manages to have three separate orderings of the arguments to the clone() syscall on different architectures. In the kernel these are selected via CONFIG_CLONE_BACKWARDS and CONFIG_CLONE_BACKWARDS2. Clean up our implementation of this to use similar #define names rather than a TARGET_* ifdef ladder. This includes behaviour changes fixing bugs on cris, x86-64, m68k, openrisc and unicore32. cris had explicit but wrong handling; the others were just incorrectly using QEMU's default, which happened to be the equivalent of CONFIG_CLONE_BACKWARDS. (unicore32 appears to be broken in the mainline kernel in that it tries to use arg3 for both parent_tidptr and newtls simultaneously -- we don't attempt to emulate this bug...) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-09linux-user: Move cpu_clone_regs() and cpu_set_tls() into linux-userPeter Maydell
The functions cpu_clone_regs() and cpu_set_tls() are not purely CPU related -- they are specific to the TLS ABI for a a particular OS. Move them into the linux-user/ tree where they belong. target-lm32 had entirely unused implementations, since it has no linux-user target; just drop them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-08linux-user: Merge pread/pwrite into pread64/pwrite64Peter Maydell
The Linux syscalls underlying pread() and pwrite() take a 64 bit offset on all architectures, even if some of them name the syscall "pread/pwrite" rather than "pread64/pwrite64" for historical reasons. So move the four QEMU target architectures (arm, i386, sparc, unicore32) which were defining TARGET_NR_pread/pwrite to define TARGET_NR_pread64/pwrite64 instead, and drop the TARGET_NR_pread/pwrite implementation code completely. (Based on examination of the kernel sources for the four architectures this patch affects.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-11linux-user: Add syscall numbers from kernel 2.6.39.2Peter Maydell
Add syscall numbers for new syscall numbers; this brings us into line with Linux 2.6.39.2. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori
In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-06-16linux-user: update syscall listRiku Voipio
In preparation for supporting pipe2() Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2008-12-13Remove unnecessary trailing newlinesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-14i386 TLS supportbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3644 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-14 Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3396 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-27Move get_sp_from_cpustate from cpu.h to target_signal.h.ths
Enable sigaltstack processing for more architectures. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3253 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-27linux-user sigaltstack() syscall, by Thayne Harbaugh.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3252 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-24Update Linux kernel syscall list.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3216 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-23Sync termbits.h with current Linux kernel.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3215 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-21Implement set_robust_list, by Alexander Graf.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2992 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-21Implement tgkill, by Alexander Graf.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2991 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-03Semaphore structure mapping, by Stuart Anderson.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2929 c046a42c-6fe2-441c-8c8c-71466251a162
2004-12-06utimes() supportbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1164 c046a42c-6fe2-441c-8c8c-71466251a162
2004-09-13uname fixbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1066 c046a42c-6fe2-441c-8c8c-71466251a162
2004-01-04termios support for SPARC and PPCbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@496 c046a42c-6fe2-441c-8c8c-71466251a162
2003-09-30new directory structurebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@385 c046a42c-6fe2-441c-8c8c-71466251a162
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