0b1bcb00fb
MIPS signal handling fixes.
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Also fixes a register corruption bug in do_sigreturn. When "returning"
from sigreturn we are actually restoring the virtual cpu state from the
signal frame. This is actually surprisingly hard to observe in practice.
Typically an thread be blocked in a FUTEX_WAIT call when the signal arrives,
so the effect is a spurious syscall success and the introduction of a
subtle race condition.
On x86/arm a syscall modifies a single word sized register, so
do_sigreturn can just return that value. On MIPS a syscall clobbers
multiple registers, so we need additional smarts. My solution is to
invent a magic errno value that means "don't touch CPU state".
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7194 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-21 01:41:10 +00:00
b5dc7732e1
More efficient target register / TC accesses.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-27 10:02:35 +00:00
d0dc7dc327
Make MIPS MT implementation more cache friendly.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3981 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-12 21:01:26 +00:00
992f48a036
Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3396 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-14 16:27:31 +00:00
540635ba65
Code provision for n32/n64 mips userland emulation. Not functional yet.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3284 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-30 01:58:33 +00:00
198a74de4c
Move get_sp_from_cpustate from cpu.h to target_signal.h.
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Enable sigaltstack processing for more architectures.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3253 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-27 16:44:32 +00:00
a04e134ad1
linux-user sigaltstack() syscall, by Thayne Harbaugh.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3252 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-27 13:57:58 +00:00
b9a02beda2
Add new MIPS/Linux syscalls.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3214 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-23 18:07:05 +00:00
2601c356b7
Correct and update mips termbits.h.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3213 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-23 17:55:00 +00:00
637947f19d
linux-user errno mapping, by Stuart Anderson.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2908 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-01 12:09:19 +00:00
388bb21af6
MIPS linux-user update.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2810 c046a42c-6fe2-441c-8c8c-71466251a162
2007-05-13 13:58:00 +00:00
6f5b89a07c
MIPS Userland TLS register emulation, by Daniel Jacobowitz.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2465 c046a42c-6fe2-441c-8c8c-71466251a162
2007-03-02 20:48:00 +00:00
c960bde13c
correct ioctls
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1679 c046a42c-6fe2-441c-8c8c-71466251a162
2005-11-28 22:28:16 +00:00
148f50581b
uid32 syscalls
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1678 c046a42c-6fe2-441c-8c8c-71466251a162
2005-11-28 22:28:07 +00:00
048f6b4df7
mips user emulation
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1668 c046a42c-6fe2-441c-8c8c-71466251a162
2005-11-26 18:47:20 +00:00
pbrook