[PATCH] x86emul: pad blob-execution "okay" messages

* [PATCH] x86emul: pad blob-execution "okay" messages
@ 2021-06-02 14:38 Jan Beulich
  2021-06-28 12:15 ` Ping: " Jan Beulich
  0 siblings, 1 reply; 3+ messages in thread
From: Jan Beulich @ 2021-06-02 14:38 UTC (permalink / raw)
  To: xen-devel; +Cc: Andrew Cooper, Wei Liu, Roger Pau Monné

We already do so in the native execution case, and a few descriptions (I
did notice this with SHA ones) are short enough for the output to look
slightly odd.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
Many descriptions are longer than 37 characters, so I wonder whether we
wouldn't want to bump the padding to 50, 60, or even 70. And this
perhaps despite then going out of sync with the individual insn tests
earlier on (which I wouldn't want to touch).

--- a/tools/tests/x86_emulator/test_x86_emulator.c
+++ b/tools/tests/x86_emulator/test_x86_emulator.c
@@ -5181,6 +5181,8 @@ int main(int argc, char **argv)
 
     for ( j = 0; j < ARRAY_SIZE(blobs); j++ )
     {
+        unsigned int nr;
+
         if ( blobs[j].check_cpu && !blobs[j].check_cpu() )
             continue;
 
@@ -5196,7 +5198,8 @@ int main(int argc, char **argv)
 
         if ( ctxt.addr_size == sizeof(void *) * CHAR_BIT )
         {
-            i = printf("Testing %s native execution...", blobs[j].name);
+            nr = printf("Testing %s native execution...", blobs[j].name);
+
             if ( blobs[j].set_regs )
                 blobs[j].set_regs(&regs);
             asm volatile (
@@ -5212,11 +5215,13 @@ int main(int argc, char **argv)
             );
             if ( !blobs[j].check_regs(&regs) )
                 goto fail;
-            printf("%*sokay\n", i < 40 ? 40 - i : 0, "");
+
+            printf("%*sokay\n", nr < 40 ? 40 - nr : 0, "");
         }
 
-        printf("Testing %s %u-bit code sequence",
-               blobs[j].name, ctxt.addr_size);
+        nr = printf("Testing %s %u-bit code sequence",
+                    blobs[j].name, ctxt.addr_size);
+
         if ( blobs[j].set_regs )
             blobs[j].set_regs(&regs);
         regs.eip = (unsigned long)res;
@@ -5233,7 +5238,10 @@ int main(int argc, char **argv)
                 regs.eip < (unsigned long)res + blobs[j].size )
         {
             if ( (i++ & 8191) == 0 )
+            {
                 printf(".");
+                ++nr;
+            }
             rc = x86_emulate(&ctxt, &emulops);
             if ( rc != X86EMUL_OKAY )
             {
@@ -5242,13 +5250,17 @@ int main(int argc, char **argv)
                 return 1;
             }
         }
-        for ( ; i < 2 * 8192; i += 8192 )
+        for ( ; i < 2 * 8192; i += 8192 ) {
             printf(".");
+            ++nr;
+        }
+
         if ( (regs.eip != 0x12345678) ||
              (regs.esp != ((unsigned long)res + MMAP_SZ)) ||
              !blobs[j].check_regs(&regs) )
             goto fail;
-        printf("okay\n");
+
+        printf("%*sokay\n", nr < 40 ? 40 - nr : 0, "");
     }
 
     return 0;



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