Commit Graph

782 Commits

Author SHA1 Message Date
Edgar E. Iglesias
b2178704e4 microblaze: Pass a ucontext * as 3rd sighandler arg
There is disagreement between microblaze glibc and the kernel
to what the third arg of signal handlers should point to.

Change QEMU linux-user to match the kernel port. glibc patches
are pending.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-07-23 09:30:37 +02:00
Laurent Vivier
6d1db8c34e linux-user: display cpu list.
As it is done for qemu-system with "-cpu ?", when cpu_list_id() is missing
for a target, call cpu_list() instead.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-07-22 05:52:08 +02:00
Edgar E. Iglesias
187b4e08d3 microblaze: Correct signal frame setup.
Pass the context in r7.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-07-15 15:32:51 +02:00
Paul Brook
97374d3858 Usermode exec-stack fix
When loading a shared library that requires an executable stack,
glibc uses the mprotext PROT_GROWSDOWN flag to achieve this.
We don't support PROT_GROWSDOWN.
Add a special case to handle changing the stack permissions in this way.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-06-16 13:03:51 +01:00
Paul Brook
9e0b74a43f Strace mprotect flags.
Teach strace code about linux specific mprotect flags.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-06-16 13:03:51 +01:00
Richard Henderson
d35b261c7a s390x: Avoid _llseek.
There's no _llseek on s390x either.  Replace the existing
test for __x86_64__ with a functional test for __NR_llseek.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-11 18:15:35 +02:00
Paolo Bonzini
7ee2822cbe rename CONFIG_QEMU_PREFIX
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-10 00:09:49 +02:00
Nathan Froyd
0fddbbf255 linux-user: honor low bit of entry PC for MIPS
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09 16:10:51 +02:00
Paul Brook
68a1c81686 Pre-allocate guest address space
Allow pre-allocation of the guest virtual address space in usermode emulation.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-29 02:27:35 +01:00
Richard Henderson
0be1d07c0e alpha-linux-user: Fill in SI_CODE for SIGSEGV.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-28 23:27:20 +02:00
Richard Henderson
680c877af4 linux-user: Use qemu-malloc.c.
Since we're no longer setting PAGE_RESERVED, there's no need to
implement qemu_malloc via mmap.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-28 23:27:19 +02:00
Riccardo Magliocchetti
564e2fe8cd linux-user: Fix compilation with DEBUG defined
Signed-off-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-28 23:20:34 +02:00
Riku Voipio
9e42382fc1 linux-user: do not warn for missing pselect6
Libc will fallback gracefully if pselect6 is not available. Thus put
pselect6 to nowarn until the atomicity issues of the original pselect6
patch are dealt with.

Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
Cc: Michael Casadevall <mcasadevall@ubuntu.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 18:42:37 +02:00
Richard Henderson
9002ec794e tcg: Initialize the prologue after GUEST_BASE is fixed.
This will allow backends to make intelligent choices about how
to implement GUEST_BASE.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 18:41:21 +02:00
Richard Henderson
a5b3b13bed alpha-linux-user: Fix sigprocmask.
Alpha passes oldset by value in a register, and returns the newset
as the return value; as compared to the standard implementation in
which both are passed by reference.  This requires being able to
distinguish negative return values that are not errors.  Do this in
the same way as the Alpha Linux kernel, by storing a zero in V0 in
the implementation of the syscall.

At the same time, fix a think-o in the regular sigprocmask path in
which we passed the target, rather than the host, HOW value.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:21 +00:00
Richard Henderson
f43ce12b47 alpha-linux-user: Fix sigsuspend parameters.
Alpha passes the signal set in a register, not by reference.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:21 +00:00
Richard Henderson
9231733a82 alpha-linux-user: Fix getxpid.
Put ppid in the second return register.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:21 +00:00
Richard Henderson
fb41a66edd alpha-linux-user: Fix pipe return mechanism.
At the same time, tidy the code wrt MIPS and SH4 which have the
same two register return mechanism.  Fix confusion between pipe
and pipe2 with an explicit flags=0, when the guest will not be
using the two register return mechanism.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:20 +00:00
Richard Henderson
57f18a9515 alpha-linux-user: Add correct sigaction constants.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:20 +00:00
Richard Henderson
1b6bd8c7f3 alpha-linux-user: Fix siginfo.si_addr for SIGSEGV and SIGBUS.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:20 +00:00
Richard Henderson
7dd46c02e4 alpha-linux-user: Fix brk error return.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21 16:22:20 +00:00
Aurelien Jarno
e476492e78 linux-user: fix 32-bit host breakage
Fix breakage introduced by commit 81bbe906c8.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-19 18:39:11 +02:00
Edgar E. Iglesias
0d5d469938 microblaze: Update elf machine nums.
189 was allocated in upstream binutils.

0xbaab was the old temporary value. Still used by some tools and the
linux kernel.

I've seen 115 in older gdb versions, but lets ignore that one.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-05-19 15:24:17 +02:00
Edgar E. Iglesias
e4cbd44d8e microblaze: Add linux-user core dumping support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-05-19 15:09:28 +02:00
takasi-y@ops.dti.ne.jp
81bbe906c8 linux-user: rlimit conversion between host and target.
rlim_t conversion between host and target added.
Otherwise there are some incorrect case like
- RLIM_INFINITY on 32bit target -> 64bit host.
- RLIM_INFINITY on 64bit host -> mips and sparc target ?
- Big value(for 32bit target) on 64bit host -> 32bit target.

One is added into getrlimit, setrlimit, and ugetrlimit. It converts both
RLIM_INFINITY and value bigger than target can hold(>31bit) to RLIM_INFINITY.

Another one is added to guest_stack_size calculation introduced by
703e0e89. The rule is mostly same except the result on the case is keeping
the value of guest_stack_size.

Slightly tested for SH4, and x86_64 -linux-user on x86_64-pc-linux host.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-18 19:30:10 +02:00
Blue Swirl
5a834bb47c sparc: Fix lazy flag calculation on interrupts, refactor
Recalculate Sparc64 CPU flags on interrupts, otherwise some earlier
flags could be stored to pstate.

Refactor PSR/CCR/CWP handling: concentrate the actual
functions to op_helper.c.

Thanks to Igor Kovalenko for reporting.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-05-09 20:19:04 +00:00
Paul Brook
c581deda32 Better default guest_base
Avoid loading linux-user applications in address space already used/reserved
by the host.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-05 16:32:59 +01:00
Paul Brook
2e9a5713f0 Remove PAGE_RESERVED
The usermode PAGE_RESERVED code is not required by the current mmap
implementation, and is already broken when guest_base != 0.
Unfortunately the bsd emulation still uses the old mmap implementation,
so we can't rip it out altogether.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-05 16:32:59 +01:00
Richard Henderson
6910b8f66a target-alpha: Fix load-locked/store-conditional.
Use an exception plus start_exclusive to implement the compare-and-swap.
This follows the example set by the MIPS and PPC ports.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-27 05:50:41 +02:00
Richard Henderson
a4b388ff51 target-alpha: Enable NPTL.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-27 05:50:41 +02:00
Richard Henderson
ac316ca4b7 target-alpha: Implement rs/rc properly.
This is a per-cpu flag; there's no need for a spinlock of any kind.

We were also failing to manipulate the flag with $31 as a target reg
and failing to clear the flag on execution of a return-from-interrupt
instruction.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-27 05:50:41 +02:00
Richard Henderson
ed18c5ce1d linux-user: Fix sparc32plus stat64 syscalls.
Check TARGET_ABI_BITS, not TARGET_LONG_BITS, when deciding
whether or not the guest needs special 64-bit stat translation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-26 17:30:17 +00:00
Richard Henderson
2cc2026063 linux-user: Fix Sparc64 syscall returns.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-25 18:04:49 +00:00
Richard Henderson
6495a04457 linux-user: Remove ELFLOAD32.
The ABI-specific types used by linux_binprm and image_info
are different after forcing TARGET_ABI32 on.  Which means
that the parameters that load_elf_binary_multi sees are not
those that loader_exec passed.  This is inherently broken
and is more trouble than it's worth fixing.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-25 12:59:30 +00:00
takasi-y@ops.dti.ne.jp
e00ac24953 linux-user: do_shmdt(): Fix page_set_flags's 2nd arg.
2nd arg of page_set_flags() should be start+size, but size.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14 00:19:56 +02:00
Aurelien Jarno
f7177937a2 linux-user: switch default ppc64 CPU to 970fx from 970
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-08 11:11:21 +02:00
Stefan Weil
a1606b0baa Fix compilation with missing inotify_init1
Commit c05c7a7306
breaks cross compilation for mips (and other
compilations without CONFIG_INOTIFY1):

make[1]: Entering directory `/qemu/bin/mips'
  CC    i386-linux-user/syscall.o
cc1: warnings being treated as errors
/qemu/linux-user/syscall.c: In function ‘do_syscall’:
/qemu/linux-user/syscall.c:7067: error: implicit declaration of function ‘sys_inotify_init1’

Cc: Riku Voipio <riku.voipio@nokia.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-01 21:51:59 +02:00
Aurelien Jarno
60e99246d6 linux-user/ia64: workaround ia64 strangenesses
ia64 has some strangenesses that need to be workaround:
- it has a __clone2() syscall instead of the using clone() one, with
  different arguments, and which is not declared in the usual headers.
- ucontext.uc_sigmask is declared with type long int, while it is
  actually of type sigset_t.
- uc_mcontext, uc_sigmask, uc_stack, uc_link are declared using #define,
  which clashes with the target_ucontext fields. Change their names to
  tuc_*, as already done for some target architectures.
2010-04-01 21:51:58 +02:00
Blue Swirl
29e922b61f Compile qemu-timer only once
Arrange various declarations so that also non-CPU code can access
them, adjust users.

Move CPU specific code to cpus.c.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-29 19:24:00 +00:00
Rob Landley
7983f435e5 linux-user/ppc: use the Linux register layout
The dynamic linker converts the Linux layout to the AIX layout and is
reentrant so it won't do it a second time if it's already been
converted. In short it work just fine with either register layout.

OTOH, statically linked binaries expect a Linux layout.

Remove code converting the Linux layout to AIX layout so that all
binaries are presented the Linux Layout.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-28 16:52:27 +02:00
Richard Henderson
703e0e89c6 linux-user: Use RLIMIT_STACK for default stack size.
The current default stack limit of 512kB is far too small; a fair
number of gcc testsuite failures (for all guests) are directly
attributable to this.  Using the -s option in every invocation of
the emulator is annoying to say the least.

A reasonable compromise seems to be to honor the system rlimit.
At least on two Linux distributions, this is set to 8MB and 10MB
respectively.  If the system does not limit the stack, then we're
no worse off than before.

At the same time, rename the variable from x86_stack_size and
change the ultimate fallback size from 512kB to 8MB.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-27 14:16:51 +01:00
Michael Casadevall
7270547fe8 linux-user: Add the syscall id for pselect6 on ARM
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>
2010-03-26 20:48:30 +01:00
Riku Voipio
c05c7a7306 linux-user: add inotify_init1 syscall support
New syscall which gets actively used when you have a
fresh kernel.

Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 17:15:10 +01:00
Blue Swirl
43dc2a645e Replace assert(0) with abort() or cpu_abort()
When building with -DNDEBUG, assert(0) will not stop execution
so it must not be used for abnormal termination.

Use cpu_abort() when in CPU context, abort() otherwise.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-18 18:41:57 +00:00
Blue Swirl
a6c6f76ceb Fix build with -DNDEBUG in CFLAGS
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-13 14:18:50 +00:00
Paul Brook
b480d9b74d Fix usermode virtual address type
Usermode virtual addresses are abi_ulong, not target_ulong.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 23:25:52 +00:00
Richard Henderson
14f24e1465 linux-user: Fix mmap_find_vma returning invalid addresses.
Don't return addresses that aren't properly aligned for the guest,
e.g. when the guest has a larger page size than the host.  Don't
return addresses that are outside the virtual address space for the
target, by paying proper attention to the h2g/g2h macros.

At the same time, place the default mapping base for 64-bit guests
(on 64-bit hosts) outside the low 4G.  Consistently interpret
mmap_next_start in the guest address space.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2010-03-12 16:29:18 +00:00
Richard Henderson
7bc7b099df linux-user: Use h2g_valid in qemu_vmalloc.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2010-03-12 16:29:07 +00:00
Blue Swirl
70539e1850 Update to a hopefully more future proof FSF address
See also 8167ee8839,
530e7615ce and
fad6cb1a56.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-07 15:48:43 +00:00
takasi-y@ops.dti.ne.jp
d871443692 linux-user: Save/restore fpu registers to signal context on sh4
As "todo" comment in source code.
And modify restore_sigcontext() to have three args as kernel's does.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-06 19:37:05 +01:00