[PATCH 2/2] Hexagon: append eflags to unknown cpu model string

[Matheus Tavares Bernardino]

Running qemu-hexagon with a binary that was compiled for an arch version
unknown by qemu can produce a somewhat confusing message:

  qemu-hexagon: unable to find CPU model 'unknown'

Let's give a bit more info by appending the eflags so that the message
becomes:

  qemu-hexagon: unable to find CPU model 'unknown (0x69)'

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
---
 linux-user/hexagon/target_elf.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/linux-user/hexagon/target_elf.h b/linux-user/hexagon/target_elf.h
index b4e9f40527..f47e130537 100644
--- a/linux-user/hexagon/target_elf.h
+++ b/linux-user/hexagon/target_elf.h
@@ -20,6 +20,9 @@
 
 static inline const char *cpu_get_model(uint32_t eflags)
 {
+    static char buf[32];
+    int err;
+
     /* For now, treat anything newer than v5 as a v67 */
     /* FIXME - Disable instructions that are newer than the specified arch */
     if (eflags == 0x04 ||    /* v5  */
@@ -34,7 +37,9 @@ static inline const char *cpu_get_model(uint32_t eflags)
        ) {
         return "v67";
     }
-    return "unknown";
+
+    err = snprintf(buf, sizeof(buf), "unknown (0x%x)", eflags);
+    return err >= 0 && err < sizeof(buf) ? buf : "unknown";
 }
 
 #endif
-- 
2.37.2