Factor out printing of 64bit syscall argument

[strace] / util.c

diff --git a/util.c b/util.c
index 84baf7a194c13404cec7d6f2a5d665004625e193..a471590c76c3e88542afa069c6a4d11f90a53d5e 100644 (file)
--- a/util.c
+++ b/util.c
@@ -254,6 +254,42 @@ printxval(const struct xlat *xlat, int val, const char *dflt)
                tprintf("%#x /* %s */", val, dflt);
 }
 
+#if HAVE_LONG_LONG
+/*
+ * Print 64bit argument at position llarg and return the index of the next
+ * argument.
+ */
+int
+printllval(struct tcb *tcp, const char *format, int llarg)
+{
+# if defined(FREEBSD) \
+     || (defined(LINUX) && defined(POWERPC) && !defined(__powerpc64__)) \
+     || defined (LINUX_MIPSO32)
+       /* Align 64bit argument to 64bit boundary.  */
+       if (llarg % 2) llarg++;
+# endif
+# if defined LINUX && defined X86_64
+       if (current_personality == 0) {
+               tprintf(format, tcp->u_arg[llarg]);
+               llarg++;
+       } else {
+               tprintf(format, LONG_LONG(tcp->u_arg[llarg], tcp->u_arg[llarg + 1]));
+               llarg += 2;
+       }
+# elif defined IA64 || defined ALPHA || (defined POWERPC && defined __powerpc64__)
+       tprintf(format, tcp->u_arg[llarg]);
+       llarg++;
+# elif defined LINUX_MIPSN32
+       tprintf(format, tcp->ext_arg[llarg]);
+       llarg++;
+# else
+       tprintf(format, LONG_LONG(tcp->u_arg[llarg], tcp->u_arg[llarg + 1]));
+       llarg += 2;
+# endif
+       return llarg;
+}
+#endif
+
 /*
  * Interpret `xlat' as an array of flags
  * print the entries whose bits are on in `flags'