Use one of the reserved slots in struct user_pt_regs to return syscall
number in the GPR regset. Update syscall number from the GPR regset only
when it's non-zero.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
__u32 windowstart;
__u32 windowbase;
__u32 threadptr;
- __u32 reserved[7 + 48];
+ __u32 syscall;
+ __u32 reserved[6 + 48];
__u32 a[64];
};
.threadptr = regs->threadptr,
.windowbase = regs->windowbase,
.windowstart = regs->windowstart,
+ .syscall = regs->syscall,
};
memcpy(newregs.a,
regs->sar = newregs.sar;
regs->threadptr = newregs.threadptr;
+ if (newregs.syscall)
+ regs->syscall = newregs.syscall;
+
if (newregs.windowbase != regs->windowbase ||
newregs.windowstart != regs->windowstart) {
u32 rotws, wmask;