This is a PHP 7 compatibilty macro which was segfaulting due to the
temporary variable being defined in the do..while scoped block (to
swallow semicolon for macros), e.g:
zval *arr;
VIRT_ARRAY_INIT(arr);
VIRT_ADD_ASSOC_STRING(arr, "foo", "bar"); // <= segfault here
The VIRT_ARRAY_INIT above was expanding to:
do {
zval z_arr; // <= local scope definition
arr = &z_arr;
array_init(arr);
} while (0)
After this patch, the macro expands to:
zval z_arr; // now defined in the scope of the macro caller
do {
arr = &z_arr;
array_init(arr);
} while (0)
which solved the issue.
---
src/util.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/src/util.h b/src/util.h
index 3af77d4..c96fd0c 100644
--- a/src/util.h
+++ b/src/util.h
@@ -151,10 +151,11 @@
} \
} while(0)
-# define VIRT_ARRAY_INIT(_name) do { \
+# define VIRT_ARRAY_INIT(_name) \
zval z##_name; \
- _name = &z##_name; \
- array_init(_name); \
+ do { \
+ _name = &z##_name; \
+ array_init(_name); \
} while(0)
# else /* PHP_MAJOR_VERSION < 7 */
--
2.21.0
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
