[PATCH 4/8] Cygwin: Make dumper scan more than first 4GB of VM on x86_64
Jon Turney
jon.turney@dronecode.org.uk
Wed Jul 1 21:25:25 GMT 2020
It's unclear that we need an end address here at all, or can just rely
on VirtualQueryEx() failing when we reach the end of memory regions.
---
winsup/utils/dumper.cc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/winsup/utils/dumper.cc b/winsup/utils/dumper.cc
index dcf01e800..ccc4bd12f 100644
--- a/winsup/utils/dumper.cc
+++ b/winsup/utils/dumper.cc
@@ -296,7 +296,7 @@ dumper::collect_memory_sections ()
return 0;
LPBYTE current_page_address;
- LPBYTE last_base = (LPBYTE) 0xFFFFFFFF;
+ LPBYTE last_base = (LPBYTE) -1;
SIZE_T last_size = (SIZE_T) 0;
SIZE_T done;
@@ -307,7 +307,7 @@ dumper::collect_memory_sections ()
if (hProcess == NULL)
return 0;
- for (current_page_address = 0; current_page_address < (LPBYTE) 0xFFFF0000;)
+ for (current_page_address = 0; current_page_address < (LPBYTE) -1;)
{
if (!VirtualQueryEx (hProcess, current_page_address, &mbi, sizeof (mbi)))
break;
--
2.27.0
More information about the Cygwin-patches
mailing list