[PATCH] Fix MIPS n32/n64 compile error in syscall.c

[David Daney]

syscall.c will not build under mips-n32 or mips-n64.

In syscall_enter() there is a call to ptrace() with an undefined 
variable 'pid'.  This should be replaced with 'tcp->pid'.  Attached is a 
patch that fixes the issue for me.

Please apply if approved.

Thanks,

2010-02-09  David Daney  <dda...@caviumnetworks.com>

        * syscall.c (syscall_enter): Pass tcp->pid to ptrace
        in MIPS-n32/MIPS-n64 case.
--- strace-4.5.19/syscall.c     2009-10-12 12:54:21.000000000 -0700
+++ strace-4.5.19-dd/syscall.c  2010-02-09 10:38:51.000000000 -0800
@@ -2035,7 +2035,7 @@
                else
                        nargs = tcp->u_nargs = MAX_ARGS;
 
-               if (ptrace (PTRACE_GETREGS, pid, NULL, (long) &regs) < 0)
+               if (ptrace (PTRACE_GETREGS, tcp->pid, NULL, (long) &regs) < 0)
                        return -1;
 
                for(i = 0; i < nargs; i++) {
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