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-rw-r--r--lib/scudo/standalone/wrappers_c.inc16
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/scudo/standalone/wrappers_c.inc b/lib/scudo/standalone/wrappers_c.inc
index 2beddc724800..a9adbc83588b 100644
--- a/lib/scudo/standalone/wrappers_c.inc
+++ b/lib/scudo/standalone/wrappers_c.inc
@@ -38,8 +38,17 @@ INTERFACE WEAK struct SCUDO_MALLINFO SCUDO_PREFIX(mallinfo)(void) {
struct SCUDO_MALLINFO Info = {};
scudo::StatCounters Stats;
SCUDO_ALLOCATOR.getStats(Stats);
+ // Space allocated in mmapped regions (bytes)
+ Info.hblkhd = static_cast<__scudo_mallinfo_data_t>(Stats[scudo::StatMapped]);
+ // Maximum total allocated space (bytes)
+ Info.usmblks = Info.hblkhd;
+ // Space in freed fastbin blocks (bytes)
+ Info.fsmblks = static_cast<__scudo_mallinfo_data_t>(Stats[scudo::StatFree]);
+ // Total allocated space (bytes)
Info.uordblks =
static_cast<__scudo_mallinfo_data_t>(Stats[scudo::StatAllocated]);
+ // Total free space (bytes)
+ Info.fordblks = Info.fsmblks;
return Info;
}
@@ -170,7 +179,8 @@ INTERFACE WEAK void *SCUDO_PREFIX(aligned_alloc)(size_t alignment,
SCUDO_ALLOCATOR.allocate(size, scudo::Chunk::Origin::Malloc, alignment));
}
-INTERFACE WEAK int SCUDO_PREFIX(malloc_info)(int, FILE *) {
- errno = ENOTSUP;
- return -1;
+INTERFACE WEAK int SCUDO_PREFIX(malloc_info)(UNUSED int options, FILE *stream) {
+ fputs("<malloc version=\"scudo-1\">", stream);
+ fputs("</malloc>", stream);
+ return 0;
}