diff options
Diffstat (limited to 'libdw/libdwP.h')
| -rw-r--r-- | libdw/libdwP.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libdw/libdwP.h b/libdw/libdwP.h index 3e1ef59b..36c2acd9 100644 --- a/libdw/libdwP.h +++ b/libdw/libdwP.h @@ -599,10 +599,23 @@ extern void __libdw_seterrno (int value) internal_function; #define libdw_typed_alloc(dbg, type) \ libdw_alloc (dbg, type, sizeof (type), 1) +/* Can only be used to undo the last libdw_alloc. */ +#define libdw_unalloc(dbg, type, tsize, cnt) \ + ({ struct libdw_memblock *_tail = __libdw_thread_tail (dbg); \ + size_t _required = (tsize) * (cnt); \ + /* We cannot know the padding, it is lost. */ \ + _tail->remaining += _required; }) \ + +#define libdw_typed_unalloc(dbg, type) \ + libdw_unalloc (dbg, type, sizeof (type), 1) + /* Callback to choose a thread-local memory allocation stack. */ extern struct libdw_memblock *__libdw_alloc_tail (Dwarf* dbg) __nonnull_attribute__ (1); +extern struct libdw_memblock *__libdw_thread_tail (Dwarf* dbg) + __nonnull_attribute__ (1); + /* Callback to allocate more. */ extern void *__libdw_allocate (Dwarf *dbg, size_t minsize, size_t align) __attribute__ ((__malloc__)) __nonnull_attribute__ (1); |