Commit Graph

66 Commits

Author SHA1 Message Date
Markus Armbruster f91005e195 Supply missing header guards
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190604181618.19980-5-armbru@redhat.com>
2019-06-12 13:20:21 +02:00
Markus Armbruster a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00
Richard Henderson 5a59fbce91 target/sparc: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace sparc_env_get_cpu with env_archcpu.  The combination
CPU(sparc_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Markus Armbruster 90c84c5600 qom/cpu: Simplify how CPUClass:cpu_dump_state() prints
CPUClass method dump_statistics() takes an fprintf()-like callback and
a FILE * to pass to it.  Most callers pass fprintf() and stderr.
log_cpu_state() passes fprintf() and qemu_log_file.
hmp_info_registers() passes monitor_fprintf() and the current monitor
cast to FILE *.  monitor_fprintf() casts it right back, and is
otherwise identical to monitor_printf().

The callback gets passed around a lot, which is tiresome.  The
type-punning around monitor_fprintf() is ugly.

Drop the callback, and call qemu_fprintf() instead.  Also gets rid of
the type-punning, since qemu_fprintf() takes NULL instead of the
current monitor cast to FILE *.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-15-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Peter Maydell bba390cb9e linux-user/sparc/signal.c: Remove dead code
Coverity complains (CID 1390847) about some dead code in
do_sigreturn(). This is an if (err) clause that can never be
true, copied from the kernel (where __get_user returns an error).
The one code path that could report an error is in the
currently commented-out pseudocode for handling FPU register
restoring, so move the if into that comment (and fix the
broken indent in the comment in the process).

(The new position for the error check is also the semantically
correct one -- we should not restore the signal mask from
the signal frame if we get an error here, so the check must
be done before set_sigmask(), not after.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20181115114616.26265-1-peter.maydell@linaro.org
2018-11-15 13:06:40 +00:00
Peter Maydell b10089a14c linux-user: Don't call gdb_handlesig() before queue_signal()
The CPU main-loop routines for linux-user generally
call gdb_handlesig() when they're about to queue a
SIGTRAP signal. This is wrong, because queue_signal()
will cause us to pend a signal, and process_pending_signals()
will then call gdb_handlesig() itself. So the effect is that
we notify gdb of the SIGTRAP, and then if gdb says "OK,
continue with signal X" we will incorrectly notify
gdb of the signal X as well. We don't do this double-notify
for anything else, only SIGTRAP.

Remove this unnecessary and incorrect code from all
the targets except for nios2 (whose main loop is
doing something different and broken, and will be handled
in a separate patch).

This bug only manifests if the user responds to the reported
SIGTRAP using "signal SIGFOO" rather than "continue"; since
the latter is the overwhelmingly common thing to do after a
breakpoint most people won't have hit this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20181019174958.26616-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-12 15:48:00 +01:00
Peter Maydell e285977e77 linux-user: Remove dead error-checking code
Remove some dead code spotted by Coverity (CID 1009855,
1390854, 1390847). The underlying cause in all these cases
is the same: QEMU's put_user operations can't result in
errors, but the kernel's equivalent does. So when code
was copied from the kernel signal-frame-setup/teardown
code, checks on error flags that were needed in the kernel
became dead code for us.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20181019161715.12122-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-12 15:43:07 +01:00
Peter Maydell 6d5bb0b896 linux-user/sparc/signal.c: Remove unnecessary comment
Remove a comment suggesting that we need to call tb_flush()
after writing the SPARC signal frame trampoline insns.
This isn't necessary in QEMU, because (even if the guest
architecture requires explicit icache maintenance) we
ensure that memory writes result in invalidation of
translated code from that memory.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20181009184017.15675-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-10-18 20:17:49 +02:00
Philippe Mathieu-Daudé 84ca4fa99d linux-user: Report error message on stderr, rather than stdout
Code change produced with:

  git ls-files linux-user | \
  xargs sed -i -E 's/(\s+)printf\s*\(("Unhandled.*)\);/\1fprintf(stderr, \2);/g'

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180706155127.7483-4-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-07-09 00:52:50 +02:00
Philippe Mathieu-Daudé 8f0ea81643 linux-user: Do not report "syscall not implemented" by default
This can still be reported using the "-d unimp" command line option.

Code change produced with:

  git ls-files linux-user | \
  xargs sed -i -E 's/fprintf\(stderr,\s?(".*not implemented\\n")\);/qemu_log_mask(LOG_UNIMP, \1);/g'

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180706155127.7483-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-07-09 00:52:04 +02:00
Laurent Vivier 1bdefb5ac7 linux-user: move sparc signal definitions to sparc/target_signal.h
Remove sparc64/target_signal.h, use sparc/target_signal.h instead.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180529194207.31503-11-laurent@vivier.eu>
2018-06-04 01:30:44 +02:00
Laurent Vivier 9850f9f63a linux-user: move get_sp_from_cpustate() to target_cpu.h
Remove useless includes
Fix HPPA include guard.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180529194207.31503-9-laurent@vivier.eu>
2018-06-04 01:30:44 +02:00
Laurent Vivier 995d2004b7 linux-user: move sparc/sparc64 fcntl definitions to sparc/target_fcntl.h
No code change.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180529194207.31503-8-laurent@vivier.eu>
2018-06-04 01:30:44 +02:00
Laurent Vivier 5de7706e2c linux-user: move generic fcntl definitions to generic/fcntl.h
add a per target target_fcntl.h and include the generic one from them

No code change.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180529194207.31503-2-laurent@vivier.eu>
2018-06-04 01:30:43 +02:00
Laurent Vivier 30a1b12588 linux-user: copy sparc/sockbits.h definitions from linux
Values defined for sparc are not correct.
Copy the content of "arch/sparc/include/uapi/asm/socket.h"
to fix them.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180519092956.15134-8-laurent@vivier.eu>
2018-05-25 10:10:55 +02:00
Laurent Vivier 8f553bf77c linux-user: update ARCH_HAS_SOCKET_TYPES use
to be like in the kernel and rename it TARGET_ARCH_HAS_SOCKET_TYPES

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180519092956.15134-7-laurent@vivier.eu>
2018-05-25 10:10:55 +02:00
Laurent Vivier da84fdaaf8 linux-user: move sparc/sparc64 socket.h definitions to sparc/sockbits.h
No code change.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180519092956.15134-4-laurent@vivier.eu>
2018-05-25 10:10:55 +02:00
Laurent Vivier 9a93c152fc linux-user: fix UNAME_MACHINE for sparc/sparc64
"sun4" is not recognized by config.guess.
linux defines sparc and sparc64 in arch/sparc/Makefile.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20180509231123.20864-7-laurent@vivier.eu>
2018-05-11 19:05:38 +02:00
Laurent Vivier 0562384910 linux-user: add sparc/sparc64 specific errno
Copied from linux/arch/sparc/include/uapi/asm/errno.h

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20180509231123.20864-6-laurent@vivier.eu>
2018-05-11 19:05:31 +02:00
Laurent Vivier 534cdbf56c linux-user: update sparc/syscall_nr.h to linux header 4.16
And kill sys_aplib, add sys_sync_file_range:
on sparc, since linux 2.6.17, aplib syscall has been replaced
 by sync_file_range syscall.
(289eee6fa78e ["SPARC]: Wire up sys_sync_file_range() into syscall tables.")
The syscall has been removed in linux v2.5.71
(6196166fad "[SPARC64]: Kill sys_aplib.")

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20180509231123.20864-4-laurent@vivier.eu>
2018-05-11 19:05:12 +02:00
Laurent Vivier 465e237bf7 linux-user: introduce target_sigsp() and target_save_altstack()
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411192347.30228-1-laurent@vivier.eu>
2018-05-03 18:29:15 +02:00
Laurent Vivier d0a28415e6 linux-user: move sparc/sparc64 cpu loop to sparc directory
No code change, only move code from main.c to
sparc/cpu_loop.c.

Include sparc/cpu_loop.c in sparc64/cpu_loop.c
to avoid to duplicate code.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180411185651.21351-6-laurent@vivier.eu>
2018-04-30 09:48:03 +02:00
Laurent Vivier cd71c08964 linux-user: create a dummy per arch cpu_loop.c
Create a cpu_loop-common.h for future use by
these new files and use it in the existing
main.c

Introduce target_cpu_copy_regs():
declare the function in cpu_loop-common.h
and an empty function for each target,
to move all the cpu_loop prologues to this function.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411185651.21351-2-laurent@vivier.eu>
2018-04-30 09:47:55 +02:00
Laurent Vivier cb6ac802ef linux-user: define TARGET_ARCH_HAS_SETUP_FRAME
Instead of calling setup_frame() conditionally to a list of known targets,
define TARGET_ARCH_HAS_SETUP_FRAME if the target provides the function
and call it only if the macro is defined.

Move declarations of setup_frame() and setup_rt_frame() to
linux-user/signal-common.h

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-21-laurent@vivier.eu>
2018-04-30 09:47:47 +02:00
Laurent Vivier 9f172adb35 linux-user: move sparc/sparc64 signal.c parts to sparc directory
No code change, only move code from signal.c to
sparc/signal.c, except adding includes and
exporting setup_frame() and setup_rt_frame().

sparc64/signal.c includes sparc/signal.c

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-18-laurent@vivier.eu>
2018-04-30 09:47:47 +02:00
Laurent Vivier befb7447a0 linux-user: create a dummy per arch signal.c
Create a signal-common.h for future use by these new files
and use it in the existing signal.c

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-2-laurent@vivier.eu>
2018-04-30 09:47:47 +02:00
Laurent Vivier 542ca43498 linux-user: Move CPU type name selection to a function
Instead of a sequence of "#if ... #endif" move the
selection to a function in linux-user/*/target_elf.h

We can't add them in linux-user/*/target_cpu.h
because we will need to include "elf.h" to
use ELF flags with eflags, and including
"elf.h" in "target_cpu.h" introduces some
conflicts in elfload.c

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180220173307.25125-2-laurent@vivier.eu>
2018-02-25 17:27:41 +01:00
Andreas Schwab 2b74f621f1 linux-user: Implement ioctl cmd TIOCGPTPEER
With glibc 2.27 the openpty function prefers the TIOCGPTPEER ioctl.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <mvmbmhdosb9.fsf_-_@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-02-18 18:52:32 +01:00
Igor Mammedov 576e1c4c23 sparc: embed sparc_def_t into CPUSPARCState
Make CPUSPARCState::def embedded so it would be allocated as part
of cpu instance and we won't have to worry about cleaning def pointer
up mannualy on cpu destruction.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1503592308-93913-4-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-01 11:54:24 -03:00
Peter Maydell ee8e76141b linux-user: Use correct target SHMLBA in shmat()
The shmat() handling needs to do target-specific handling
of the attach address for shmat():
 * if the SHM_RND flag is passed, the address is rounded
   down to a SHMLBA boundary
 * if SHM_RND is not passed, then the call is failed EINVAL
   if the address is not a multiple of SHMLBA

Since SHMLBA is target-specific, we need to do this
checking and rounding in QEMU and can't leave it up to the
host syscall.

Allow targets to define TARGET_FORCE_SHMLBA and provide
a target_shmlba() function if appropriate, and update
do_shmat() to honour them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-21 14:28:52 +03:00
Laurent Vivier 74642d091a linux-user: define missing sparc syscalls
NR_lookup_dcookie, NR_fadvise64, NR_fadvise64_64

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-07-19 16:18:11 +03:00
Markus Armbruster 3500385697 linux-user: Clean up target_structs.h header guards
These headers all use TARGET_STRUCTS_H as header guard symbol.  Reuse
of the same guard symbol in multiple headers is okay as long as they
cannot be included together.

Since we can avoid guard symbol reuse easily, do so: use guard symbol
$target_TARGET_STRUCTS_H for linux-user/$target/target_structs.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Markus Armbruster 9c93ae13a4 linux-user: Clean up target_signal.h header guards
These headers all use TARGET_SIGNAL_H as header guard symbol.  Reuse
of the same guard symbol in multiple headers is okay as long as they
cannot be included together.

Since we can avoid guard symbol reuse easily, do so: use guard symbol
$target_TARGET_SIGNAL_H for linux-user/$target/target_signal.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Markus Armbruster 55c5063c61 linux-user: Clean up target_cpu.h header guards
These headers all use TARGET_CPU_H as header guard symbol.  Reuse of
the same guard symbol in multiple headers is okay as long as they
cannot be included together.

Since we can avoid guard symbol reuse easily, do so: use guard symbol
$target_TARGET_CPU_H for linux-user/$target/target_cpu.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Markus Armbruster 3622634bc6 linux-user: Clean up target_syscall.h header guards
Some of them use guard symbol TARGET_SYSCALL_H, but we also have
CRIS_SYSCALL_H, MICROBLAZE_SYSCALLS_H, TILEGX_SYSCALLS_H and
__UC32_SYSCALL_H__.  They all upset scripts/clean-header-guards.pl.

Reuse of the same guard symbol TARGET_SYSCALL_H in multiple headers is
okay as long as they cannot be included together.  The script can't
tell, so it warns.

The script dislikes the other guard symbols, too.  They don't match
their file name (they should, to make guard collisions less likely),
and __UC32_SYSCALL_H__ is a reserved identifier.

Clean them all up: use guard symbol $target_TARGET_SYSCALL_H for
linux-user/$target/target_sycall.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Timothy E Baldwin c0bea68f9e linux-user: Support for restarting system calls for SPARC targets
Update the SPARC main loop and sigreturn code:
 * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn
 * set all guest CPU state within signal.c code on sigreturn
 * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication
   that the main loop should not touch any guest CPU state

Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Message-id: 1441497448-32489-9-git-send-email-T.E.Baldwin99@members.leeds.ac.uk
[PMM: Commit message tweaks; drop TARGET_USE_ERESTARTSYS define]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-05-27 14:49:49 +03:00
Riku Voipio 93a92d3bd6 linux-user: correct timerfd_create syscall numbers
x86, m68k, ppc, sh4 and sparc failed to enable timerfd, because they
didn't have timerfd_create system call defined. Instead QEMU
defined timerfd syscall. Checking with kernel sources, it appears
kernel developers reused timerfd syscall number with timerfd_create,
presumably since no userspace called the old syscall number.

Reported-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-02-23 21:25:10 +02:00
Riku Voipio 7c73d2a3fa linux-user: sync syscall numbers with kernel
Sync syscall numbers to match the linux v4.5-rc1 kernel.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-02-23 21:25:10 +02:00
Lluís Vilanova 460c579f3d build: [linux-user] Rename "syscall.h" to "target_syscall.h" in target directories
This fixes double-definitions in linux-user builds when using the UST
tracing backend (which indirectly includes the system's "syscall.h").

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-02-23 21:25:09 +02:00
Tom Musta 6f6a40328b linux-user: Support target-to-host translation of mlockall argument
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>
2014-08-22 15:06:35 +03:00
Tom Musta 0903c8be9e linux-user: Minimum Sig Handler Stack Size for PPC64 ELF V2
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>
2014-08-22 15:06:35 +03:00
Riku Voipio cbc14e6f28 linux-user: set minimum kernel version to 2.6.32
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>
2014-03-10 13:55:00 +02:00
Riku Voipio 4fc4732047 linux-user: sync syscall numbers upto 3.13
All others updated except unicore, which doesn't look right to
begin with.

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18 16:45:55 +02:00
Petar Jovanovic 55a2b1631f linux-user: create target_structs header to place ipc_perm and shmid_ds
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>
2013-11-29 11:42:04 +02:00
Peter Maydell 4ce6243dc6 linux-user: Clean up handling of clone() argument order
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>
2013-07-22 21:54:36 +03:00
Peter Maydell f5147c93d0 linux-user: Enable NPTL for SPARC targets
Provide the missing cpu_set_tls(), and resolve the FIXME in
cpu_clone_regs() by clearing the carry flag for the child.
This allows us to turn on building with NPTL for SPARC.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22 21:54:15 +03:00
Peter Maydell 6291ad77d7 linux-user: Move cpu_clone_regs() and cpu_set_tls() into linux-user
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>
2013-07-09 21:20:28 +02:00
Dillon Amburgey 0d95fda86b linux-user: Add more sparc syscall numbers
Signed-off-by: Dillon Amburgey <dillona@dillona.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-03-11 13:05:14 +02:00
Peter Maydell 24c35a504e linux-user: Merge pread/pwrite into pread64/pwrite64
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>
2012-12-08 18:49:30 +00:00
Richard Henderson 7cd393ac1d sparc-linux-user: Add some missing syscall numbers
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-10-27 14:43:10 +03:00