mirror of
https://github.com/torvalds/linux
synced 2024-10-14 23:39:09 +00:00
a3616a3c02
In the fpsp040 code when copyin or copyout fails call force_sigsegv(SIGSEGV) instead of do_exit(SIGSEGV). This solves a couple of problems. Because do_exit embeds the ptrace stop PTRACE_EVENT_EXIT a complete stack frame needs to be present for that to work correctly. There is always the information needed for a ptrace stop where get_signal is called. So exiting with a signal solves the ptrace issue. Further exiting with a signal ensures that all of the threads in a process are killed not just the thread that malfunctioned. Which avoids confusing userspace. To make force_sigsegv(SIGSEGV) work in fpsp040_die modify the code to save all of the registers and jump to ret_from_exception (which ultimately calls get_signal) after fpsp040_die returns. v2: Updated the branches to use gas's pseudo ops that automatically calculate the best branch instruction to use for the purpose. v1: https://lkml.kernel.org/r/87a6m8kgtx.fsf_-_@disp2133 Link: https://lkml.kernel.org/r/87tukghjfs.fsf_-_@disp2133 Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> |
||
---|---|---|
.. | ||
68000 | ||
amiga | ||
apollo | ||
atari | ||
bvme6000 | ||
coldfire | ||
configs | ||
emu | ||
fpsp040 | ||
hp300 | ||
ifpsp060 | ||
include | ||
kernel | ||
lib | ||
mac | ||
math-emu | ||
mm | ||
mvme16x | ||
mvme147 | ||
q40 | ||
sun3 | ||
sun3x | ||
tools/amiga | ||
install.sh | ||
Kbuild | ||
Kconfig | ||
Kconfig.bus | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Kconfig.devices | ||
Kconfig.machine | ||
Makefile |