Commit Graph

8 Commits

Author SHA1 Message Date
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 442a59c8dd linux-user: Enable NPTL for OpenRISC
The OpenRISC kernel ignores CLONE_SETTLS in its copy_thread()
implementation, so a cpu_set_tls() implementation is a no-op.
cpu_clone_regs() was setting the syscall return value in the
wrong register -- it is gpr[11], not gpr[2]. With these two
things fixed, we can compile with NPTL enabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22 21:54:12 +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
Jia Liu a8720299f1 target-or32: Add linux syscall, signal and termbits
Add OpenRISC linux syscall, signal and termbits.

Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-27 21:13:05 +00:00