a78ff11122
This patch extends save_fp_registers() and restore_fp_registers() to use PTRACE_GETREGSET and PTRACE_SETREGSET with the XSTATE note type, adding support for new processor state extensions between context switches. When the new ptrace requests are unavailable, it falls back to the old PTRACE_GETFPREGS and PTRACE_SETFPREGS methods, which have been renamed to save_i387_registers() and restore_i387_registers(). Now these functions expect *fp_regs to have the space of an _xstate struct. Thus, this also makes ptrace in UML responde to PTRACE_GETFPREGS/_SETFPREG requests with a user_i387_struct (thus independent from HOST_FP_SIZE), and by calling save_i387_registers() and restore_i387_registers() instead of the extended save_fp_registers() and restore_fp_registers() functions. Signed-off-by: Eli Cooper <elicooper@gmx.com> |
||
|---|---|---|
| .. | ||
| archsetjmp.h | ||
| archsetjmp_32.h | ||
| archsetjmp_64.h | ||
| faultinfo.h | ||
| faultinfo_32.h | ||
| faultinfo_64.h | ||
| kernel-offsets.h | ||
| mcontext.h | ||
| ptrace.h | ||
| ptrace_32.h | ||
| ptrace_64.h | ||
| ptrace_user.h | ||
| stub.h | ||
| stub_32.h | ||
| stub_64.h | ||
| syscalls.h | ||
| syscalls_32.h | ||
| syscalls_64.h | ||
| tls.h | ||