linux-user: decode MAP_{UNINITIALIZED,EXECUTABLE} in strace

Signed-off-by: Mike Frysinger <[email protected]>
Signed-off-by: Riku Voipio <[email protected]>

Author: vapier

linux-user/strace.c

@@ -398,6 +398,7 @@ UNUSED static struct flags mmap_flags[] = {
     FLAG_TARGET(MAP_DENYWRITE),
     FLAG_TARGET(MAP_FIXED),
     FLAG_TARGET(MAP_GROWSDOWN),
+    FLAG_TARGET(MAP_EXECUTABLE),
 #ifdef MAP_LOCKED
     FLAG_TARGET(MAP_LOCKED),
 #endif
@@ -407,6 +408,9 @@ UNUSED static struct flags mmap_flags[] = {
     FLAG_TARGET(MAP_NORESERVE),
 #ifdef MAP_POPULATE
     FLAG_TARGET(MAP_POPULATE),
+#endif
+#ifdef TARGET_MAP_UNINITIALIZED
+    FLAG_TARGET(MAP_UNINITIALIZED),
 #endif
     FLAG_END,
 };

linux-user/syscall_defs.h

@@ -999,6 +999,7 @@ struct target_winsize {
 #define TARGET_MAP_NORESERVE	0x4000		/* don't check for reservations */
 #define TARGET_MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define TARGET_MAP_NONBLOCK	0x10000		/* do not block on IO */
+#define TARGET_MAP_UNINITIALIZED 0x4000000	/* for anonymous mmap, memory could be uninitialized */
 #endif
 
 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_CRIS)