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* Add support for the arm breakpoint syscallHunter Laux2014-06-241-0/+1
| | | | | | | | | | | | | OABI arm used a software interrupt(0xef9f0001) for breakpoints. Since 2005 gdb has used the break instruction(0xe7f001f0) for EABI. Apparently Steel Bank Common Lisp still uses the swi instruction. This is the kernel implementation: http://lxr.free-electrons.com/source/arch/arm/kernel/traps.c#L598 Signed-off-by: Hunter Laux <hunterlaux@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* linux-user: set minimum kernel version to 2.6.32Riku Voipio2014-03-101-0/+1
| | | | | | | | | | | | | | | 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>
* linux-user: sync syscall numbers upto 3.13Riku Voipio2014-02-181-0/+6
| | | | | | | All others updated except unicore, which doesn't look right to begin with. Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* target-arm: Widen thread-local register state fields to 64 bitsPeter Maydell2014-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | The common pattern for system registers in a 64-bit capable ARM CPU is that when in AArch32 the cp15 register is a view of the bottom 32 bits of the 64-bit AArch64 system register; writes in AArch32 leave the top half unchanged. The most natural way to model this is to have the state field in the CPU struct be a 64 bit value, and simply have the AArch32 TCG code operate on a pointer to its lower half. For aarch64-linux-user the only registers we need to share like this are the thread-local-storage ones. Widen their fields to 64 bits and provide the 64 bit reginfo struct to make them visible in AArch64 state. Note that minor cleanup of the AArch64 system register encoding space means We can share the TPIDR_EL1 reginfo but need split encodings for TPIDR_EL0 and TPIDRRO_EL0. Since we're touching almost every line in QEMU that uses the c13_tls* fields in this patch anyway, we take the opportunity to rename them in line with the standard ARM architectural names for these registers. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net>
* linux-user: create target_structs header to place ipc_perm and shmid_dsPetar Jovanovic2013-11-291-0/+52
| | | | | | | | | 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>
* linux-user: Clean up handling of clone() argument orderPeter Maydell2013-07-221-0/+2
| | | | | | | | | | | | | | | | | | | 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>
* linux-user: Move cpu_clone_regs() and cpu_set_tls() into linux-userPeter Maydell2013-07-091-0/+35
| | | | | | | | | | | | | 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>
* fpu: move public header file to include/fpuPaolo Bonzini2012-12-197-7/+7
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: Merge pread/pwrite into pread64/pwrite64Peter Maydell2012-12-081-2/+2
| | | | | | | | | | | | | | | | 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>
* build: move *-user/ objects to nested Makefile.objsPaolo Bonzini2012-06-071-0/+2
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user/arm/syscall_nr.h: Add syscall number for ppollPeter Maydell2012-04-061-1/+1
| | | | | | | | | | | The list of ARM syscall numbers was missing the entry for ppoll, which meant we were accidentally not providing it. (This wasn't causing any practical issues beyond warnings about unimplemented syscalls, because glibc will fall back to another code path if the syscall isn't present.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user/arm/nwfpe/fpopcode.h: Fix non-UTF-8 charactersPeter Maydell2011-12-061-17/+17
| | | | | | | | | Fix some stray non-UTF-8 characters used in some ASCII art tables by converting them to plain ASCII '|' instead. Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
* linux-user: Add syscall numbers from kernel 2.6.39.2Peter Maydell2011-07-111-0/+13
| | | | | | | | 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>
* linux-user/arm/nwfpe: rename REG_PC to ARM_REG_PCPeter Maydell2011-04-253-6/+6
| | | | | | | | | | The REG_PC constant used in the ARM nwfpe code is fine in the kernel but when used in qemu can clash with a definition in the host system include files (in particular on Ubuntu Lucid SPARC, including signal.h will define a REG_PC). Rename the constant to avoid this issue. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* softfloat: rename float*_eq() into float*_eq_quiet()Aurelien Jarno2011-04-171-1/+1
| | | | | | | | | | | | | | float*_eq functions have a different semantics than other comparison functions. Fix that by first renaming float*_quiet() into float*_eq_quiet(). Note that it is purely mechanical, and the behaviour should be unchanged. That said it clearly highlight problems due to this different semantics, they are fixed later in this patch series. Cc: Alexander Graf <agraf@suse.de> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* linux-user/arm: fix compilation failures using softfloat's struct typesPeter Maydell2011-02-102-17/+17
| | | | | | | | | Add uses of the float32/float64 boxing and unboxing macros so that the ARM linux-user targets will compile with USE_SOFTFLOAT_STRUCT_TYPES enabled. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Delete useless 'extern' qualifiers for functionsBlue Swirl2011-01-232-5/+5
| | | | | | | 'extern' qualifier is useless for function declarations. Delete them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* linux-user: Fix incorrect NaN detection in ARM nwfpe emulationPeter Maydell2011-01-071-7/+7
| | | | | | | | | | | | | | | | | The code in the linux-user ARM nwfpe emulation was incorrectly checking only for quiet NaNs when it should have been checking for any kind of NaN. This is probably because the code in question was taken from the Linux kernel, whose copy of the softfloat library had been modified so that float*_is_nan() returned true for all NaNs, not just quiet ones. The qemu equivalent function is float*_is_any_nan(), so use that. NB that this code is really obsolete since nobody uses FPE for actual arithmetic now; this is just cleanup following the recent renaming of the NaN related functions. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()Peter Maydell2011-01-021-7/+7
| | | | | | | | | | | | | | | | The softfloat functions float*_is_nan() were badly misnamed, because they return true only for quiet NaNs, not for all NaNs. Rename them to float*_is_quiet_nan() to more accurately reflect what they do. This change was produced by: perl -p -i -e 's/_is_nan/_is_quiet_nan/g' $(git grep -l is_nan) (with the results manually checked.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Nathan Froyd <froydnj@codesourcery.com> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* linux-user: Add the syscall id for pselect6 on ARMMichael Casadevall2010-03-261-1/+1
| | | | | | | | As this is now supported in newer linux kernels. Signed-off-by: Michael Casadevall <mcasadevall@ubuntu.com> Signed-off-by: Riku Voipio <riku.voipio@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Update to a hopefully more future proof FSF addressBlue Swirl2010-03-0712-24/+12Star
| | | | | | | | See also 8167ee883931cb20c6264fc19d040ce2dc6ceaaa, 530e7615ce3c01882e582c84dc6304ab98a3d5c5 and fad6cb1a565bb73f83fc0e2654489457b489e436. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* linux-user: fix up oversealous nitpickingMichael S. Tsirkin2009-10-021-1/+1
| | | | | | | | | | Looks like linux-user code was correct, just unreadable: what it wanted to do with "-=" was really assign a negative number, not decrement. Fix up accordingly. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Revert "Get rid of _t suffix"Anthony Liguori2009-10-011-1/+1
| | | | | | | | | | | | 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>
* Get rid of _t suffixmalc2009-10-011-1/+1
| | | | | | | Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
* linux-user: fix old style decrement usageMichael S. Tsirkin2009-09-301-1/+1
| | | | | | | | Modern compilers do not parse "=-" as decrement: you must use "-=" for that. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* static and inline should came before the type of the functionsJuan Quintela2009-09-251-1/+1
| | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Export tables properly to avoid a Sparse warningBlue Swirl2009-09-211-3/+4
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Fix Sparse warnings about using plain integer as NULL pointerBlue Swirl2009-09-211-1/+1
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIANJuan Quintela2009-07-272-4/+4
| | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* linux-user: update syscall listRiku Voipio2009-06-161-0/+9
| | | | | | In preparation for supporting pipe2() Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* Fix compiler warnings in nwfpe code.Paul Brook2009-05-045-86/+47Star
| | | | Signed-off-by: Paul Brook <paul@codesourcery.com>
* Remove unnecessary trailing newlinesblueswir12008-12-132-2/+0Star
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix warnings that would be caused by gcc flag -Wwrite-stringsblueswir12008-09-141-3/+3
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5206 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix most warnings that would be caused by gcc flag -Wundefblueswir12008-09-061-10/+10
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5173 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix some warnings that would be generated by gcc -Wredundant-declsblueswir12008-08-302-4/+0Star
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5115 c046a42c-6fe2-441c-8c8c-71466251a162
* Implement ARM magic kernel page and TLS register.pbrook2008-05-291-1/+3
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4610 c046a42c-6fe2-441c-8c8c-71466251a162
* Move target-arm/nwfpe into linux-user/arm/nwfpeaurel322008-04-0912-0/+2674
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4185 c046a42c-6fe2-441c-8c8c-71466251a162
* Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)blueswir12007-10-142-5/+5
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3396 c046a42c-6fe2-441c-8c8c-71466251a162
* Move get_sp_from_cpustate from cpu.h to target_signal.h.ths2007-09-271-0/+5
| | | | | | | Enable sigaltstack processing for more architectures. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3253 c046a42c-6fe2-441c-8c8c-71466251a162
* linux-user sigaltstack() syscall, by Thayne Harbaugh.ths2007-09-271-0/+24
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* Update Linux kernel syscall list.ths2007-09-241-0/+31
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* Sync termbits.h with current Linux kernel.ths2007-09-241-1/+3
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* Add missing ARM syscall numbers.pbrook2006-11-191-1/+66
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2217 c046a42c-6fe2-441c-8c8c-71466251a162
* ARM Thumb syscalls (Paul Brook)bellard2005-04-271-0/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1415 c046a42c-6fe2-441c-8c8c-71466251a162
* ARM "Angel" semihosting syscalls (Paul Brook)bellard2005-04-231-0/+5
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1383 c046a42c-6fe2-441c-8c8c-71466251a162
* armv5te support (Paul Brook)bellard2005-01-311-2/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1258 c046a42c-6fe2-441c-8c8c-71466251a162
* utimes() supportbellard2004-12-061-0/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1164 c046a42c-6fe2-441c-8c8c-71466251a162
* uname fixbellard2004-09-131-0/+6
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* ARM cache flush support (untested) - '-d' option fixbellard2004-04-251-0/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@748 c046a42c-6fe2-441c-8c8c-71466251a162
* termios support for SPARC and PPCbellard2004-01-041-0/+215
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@496 c046a42c-6fe2-441c-8c8c-71466251a162
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