[PATCH] powerpc: add a raw dump command to xmon

Dump a stream of rawbytes with a new 'dr' command.
Produces less output and it is simpler to feed the output to scripts.
Also, dr has no dumpsize limits.

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 7d02fa2a8990..4735b41c113c 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -191,6 +191,7 @@ Commands:\n\
   di    dump instructions\n\
   df    dump float values\n\
   dd    dump double values\n\
+  dr    dump stream of raw bytes\n\
   e     print exception information\n\
   f     flush cache\n\
   la    lookup symbol+offset of specified address\n\
@@ -1938,6 +1939,28 @@ bsesc(void)
         return c;
 }
 
+static void xmon_rawdump (unsigned long adrs, long ndump)
+{
+        long n, m, r, nr;
+        unsigned char temp[16];
+
+        for (n = ndump; n > 0;) {
+                r = n < 16? n: 16;
+                nr = mread(adrs, temp, r);
+                adrs += nr;
+                for (m = 0; m < r; ++m) {
+                        if (m < nr)
+                                printf("%.2x", temp[m]);
+                        else
+                                printf("%s", fault_chars[fault_type]);
+                }
+                n -= r;
+                if (nr < r)
+                        break;
+        }
+        printf("\n");
+}
+
 #define isxdigit(c)     (('0' <= (c) && (c) <= '9') \
                          || ('a' <= (c) && (c) <= 'f') \
                          || ('A' <= (c) && (c) <= 'F'))
@@ -1960,6 +1983,13 @@ dump(void)
                         nidump = MAX_DUMP;
                 adrs += ppc_inst_dump(adrs, nidump, 1);
                 last_cmd = "di\n";
+        } else if (c == 'r') {
+                scanhex(&ndump);
+                if (ndump == 0)
+                        ndump = 64;
+                xmon_rawdump(adrs, ndump);
+                adrs += ndump;
+                last_cmd = "dr\n";
         } else {
                 scanhex(&ndump);
                 if (ndump == 0)