[coreboot-gerrit] Change in coreboot[master]: x86 gdb: Extend GDB stub with a version information

[Werner Zeh (Code Review)]

Werner Zeh has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/36021 )

Change subject: x86 gdb: Extend GDB stub with a version information
......................................................................

x86 gdb: Extend GDB stub with a version information

Add GDB command "w" to get the current version of the implemented GDB
stub in coreboot.

NOT FOR MERGE!!!

Change-Id: Ia9951ee4800e8bbf2e40a7b94de1cf3ef4c2dccd
Signed-off-by: Werner Zeh 
---
M src/arch/x86/exception.c
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/21/36021/1

diff --git a/src/arch/x86/exception.c b/src/arch/x86/exception.c
index 646e962..b1689cc 100644
--- a/src/arch/x86/exception.c
+++ b/src/arch/x86/exception.c
@@ -30,6 +30,8 @@
  * At least NUM_REGBYTES*2 are needed for register packets
  */
 #define BUFMAX 400
+/* Add a version string. */
+#define GDB_STUB_EXTENSION_VERSION "1.0"
 enum regnames {
    EAX = 0, ECX, EDX, EBX, ESP, EBP, ESI, EDI,
    PC /* also known as eip */,
@@ -837,6 +839,10 @@
    		} else
    			memcpy(out_buffer, "E07", 4);
    		break;
+		case 'w':
+			memcpy(out_buffer, GDB_STUB_EXTENSION_VERSION,
+				sizeof(GDB_STUB_EXTENSION_VERSION));
+			break;
    	case 'z':  /* z0AAAA,LLLL remove memory breakpoint */
    		   /* z1AAAA,LLLL remove hardware breakpoint */
    		   /* z2AAAA,LLLL remove write watchpoint */