[Qemu-devel] [PATCH] dump-guest-memory.py: fix No symbol "vmcoreinfo_find"

[Marc-André Lureau]

When qemu is compiled without debug, the dump gdb python script can fail with:

Error occurred in Python command: No symbol "vmcoreinfo_find" in current 
context.

Because vmcoreinfo_find() is inlined and not exported.

Use the underlying object_resolve_path_type() to get the instance instead.

Signed-off-by: Marc-André Lureau <address@hidden>
---
 scripts/dump-guest-memory.py | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/scripts/dump-guest-memory.py b/scripts/dump-guest-memory.py
index 69dd5efadf..1af26c1a45 100644
--- a/scripts/dump-guest-memory.py
+++ b/scripts/dump-guest-memory.py
@@ -546,13 +546,15 @@ shape and this command should mostly work."""
         return None
 
     def add_vmcoreinfo(self):
-        if not gdb.parse_and_eval("vmcoreinfo_find()") \
-           or not gdb.parse_and_eval("vmcoreinfo_find()->has_vmcoreinfo"):
+        vmci = '(VMCoreInfoState *)' + \
+               'object_resolve_path_type("", "vmcoreinfo", 0)'
+        if not gdb.parse_and_eval("%s" % vmci) \
+           or not gdb.parse_and_eval("(%s)->has_vmcoreinfo" % vmci):
             return
 
-        fmt = gdb.parse_and_eval("vmcoreinfo_find()->vmcoreinfo.guest_format")
-        addr = gdb.parse_and_eval("vmcoreinfo_find()->vmcoreinfo.paddr")
-        size = gdb.parse_and_eval("vmcoreinfo_find()->vmcoreinfo.size")
+        fmt = gdb.parse_and_eval("(%s)->vmcoreinfo.guest_format" % vmci)
+        addr = gdb.parse_and_eval("(%s)->vmcoreinfo.paddr" % vmci)
+        size = gdb.parse_and_eval("(%s)->vmcoreinfo.size" % vmci)
 
         fmt = le16_to_cpu(fmt)
         addr = le64_to_cpu(addr)
-- 
2.15.0.277.ga3d2ad2c43