Fix /proc/<PID>/maps output for PEB and TEBs on W10 1511

        * fhandler_process.cc (heap_info::fill_if_match): Return NULL, not 0.
        (thread_info::fill_if_match): Ditto.
        (thread_info::fill_if_match): New method to extract TEB info from
        PEB/TEB region since W10 1511.
        (format_process_maps): Drop outdated FIXME comment.  Add code to handle
        PEB/TEB region since W10 1511.
        * mmap.cc (posix_madvise): Align comment to new W10 1511 version.
        * wincap.h (wincaps::has_new_pebteb_region): New element.
        * wincap.cc: Implement above element throughout.
        (wincap_10_1511): New global wincaps to support Windows 10 since 1511.
        (wincapc::init): Use wincap_10_1511 for W10 builds >= 10586.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

1 files changed, 44 insertions, 1 deletions

diff --git a/winsup/cygwin/wincap.cc b/winsup/cygwin/wincap.cc
index 6e98df6c4..4bf62d725 100644
--- a/winsup/cygwin/wincap.cc
+++ b/winsup/cygwin/wincap.cc
@@ -51,6 +51,7 @@ wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
+  has_new_pebteb_region:false,
 };
 
 wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -84,6 +85,7 @@ wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:true,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
+  has_new_pebteb_region:false,
 };
 
 wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -117,6 +119,7 @@ wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
+  has_new_pebteb_region:false,
 };
 
 wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -150,6 +153,7 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:false,
+  has_new_pebteb_region:false,
 };
 
 wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -183,6 +187,7 @@ wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:false,
+  has_new_pebteb_region:false,
 };
 
 wincaps wincap_10 __attribute__((section (".cygwin_dll_common"), shared)) = {
@@ -216,6 +221,41 @@ wincaps wincap_10 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:true,
+  has_new_pebteb_region:false,
+};
+
+wincaps wincap_10_1511 __attribute__((section (".cygwin_dll_common"), shared)) = {
+  def_guard_pages:2,
+  max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
+  is_server:false,
+  has_mandatory_integrity_control:true,
+  needs_count_in_si_lpres2:false,
+  has_recycle_dot_bin:true,
+  has_gaa_on_link_prefix:true,
+  has_gaa_largeaddress_bug:false,
+  supports_all_posix_ai_flags:true,
+  has_restricted_stack_args:false,
+  has_transactions:true,
+  has_sendmsg:true,
+  has_broken_udf:false,
+  has_broken_alloc_console:true,
+  has_always_all_codepages:true,
+  has_localenames:true,
+  has_fast_cwd:true,
+  has_restricted_raw_disk_access:true,
+  use_dont_resolve_hack:false,
+  has_console_logon_sid:true,
+  wow64_has_secondary_stack:false,
+  has_program_compatibility_assistant:true,
+  has_pipe_reject_remote_clients:true,
+  terminate_thread_frees_stack:true,
+  has_precise_system_time:true,
+  has_microsoft_accounts:true,
+  has_set_thread_stack_guarantee:true,
+  has_broken_rtl_query_process_debug_information:false,
+  has_processor_groups:true,
+  has_broken_prefetchvm:false,
+  has_new_pebteb_region:true,
 };
 
 wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));
@@ -263,7 +303,10 @@ wincapc::init ()
 	break;
       case 10:
       default:
-	caps = &wincap_10;
+	if (version.dwBuildNumber >= 10586)
+	  caps = &wincap_10_1511;
+	else
+	  caps = &wincap_10;
 	break;
     }