From: Ali Saidi <saidi@eecs.umich.edu>
Date: Sun, 27 Jun 2004 18:33:55 +0000 (-0400)
Subject: allow the use of old console code and update elf_object not to rely on EM_ALPHA value.
X-Git-Tag: m5_1.0_tutorial~290
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c75eadc2b2c6e1084571a4df8459c2a1e741350e;p=gem5.git

allow the use of old console code and update elf_object not to rely on EM_ALPHA value.

base/loader/elf_object.cc:
    EM_ALPHA value isn't official, so perhaps we shouldn't use it
dev/alpha_console.cc:
dev/alpha_console.hh:
    this change allows the use of old console code

--HG--
extra : convert_revision : cfacd64ae7fd2595158ca1a83ebcdb66ee7e119b
---

diff --git a/base/loader/elf_object.cc b/base/loader/elf_object.cc
index b8f46449a..6dfbce28c 100644
--- a/base/loader/elf_object.cc
+++ b/base/loader/elf_object.cc
@@ -74,7 +74,8 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
     else {
         if (ehdr.e_ident[EI_CLASS] == ELFCLASS32)
             panic("32 bit ELF Binary, Not Supported");
-        printf("emachine = %x\n", ehdr.e_machine);
+        /* @todo this emachine value isn't offical yet.
+         *       so we probably shouldn't check it. */
 //        if (ehdr.e_machine != EM_ALPHA)
 //            panic("Non Alpha Binary, Not Supported");
 
diff --git a/dev/alpha_console.cc b/dev/alpha_console.cc
index 86851ff8b..680704b30 100644
--- a/dev/alpha_console.cc
+++ b/dev/alpha_console.cc
@@ -122,7 +122,9 @@ AlphaConsole::read(MemReqPtr &req, uint8_t *data)
                     *(uint32_t*)data = alphaAccess->intrClockFrequency;
                     break;
                 default:
-                    panic("Unknown 32bit access, %#x\n", daddr);
+                    // Old console code read in everyting as a 32bit int
+                    *(uint32_t*)data = *(uint32_t*)(consoleData + daddr);
+
             }
             break;
         case sizeof(uint64_t):
diff --git a/dev/alpha_console.hh b/dev/alpha_console.hh
index 47afa8f4a..49c3a9f78 100644
--- a/dev/alpha_console.hh
+++ b/dev/alpha_console.hh
@@ -73,7 +73,10 @@ class SimpleDisk;
 class AlphaConsole : public PioDevice
 {
   protected:
+    union {
         AlphaAccess *alphaAccess;
+    uint8_t *consoleData;
+    };
 
     /** the disk must be accessed from the console */
     SimpleDisk *disk;