- Restore guest sigmask in VG_(sigframe_destroy)
- Use "syscall[32]" asm idiom instead of "syscall" with immediate parameter
in VG_(nanomips_linux_SUBST_FOR_rt_sigreturn)
- Call ML_(fixup_guest_state_to_restart_syscall) from PRE(sys_rt_sigreturn)
- Tiny code refactor of sigframe-nanomips-linux.c
This fixes none/tests/thread-exits.
- Reset syscall return register (a0) in clone_new_thread()
- Use "syscall[32]" asm idiom instead of "syscall" with immediate parameter
in ML_ (call_on_new_stack_0_1)()
- Optimize stack usage in ML_ (call_on_new_stack_0_1)()
- Code refactor of ML_ (call_on_new_stack_0_1)()
It partially fixes all tests which use clone system call, e.g. none/tests/pth_atfork1.
Patch by Aleksandar Rikalo.
Necessary changes to support nanoMIPS on Linux.
Part 2/4 - Coregrind changes
Patch by Aleksandar Rikalo, Dimitrije Nikolic, Tamara Vlahovic and
Aleksandra Karadzic.
Related KDE issue: #400872.
