[PATCH v2 3/4] ntdll: Update cached debug registers in get_initial_context().
Paul Gofman
pgofman at codeweavers.com
Mon May 24 06:45:42 CDT 2021
Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
---
v2:
- added patch.
dlls/ntdll/unix/signal_i386.c | 9 +++++++++
dlls/ntdll/unix/signal_x86_64.c | 9 +++++++++
2 files changed, 18 insertions(+)
diff --git a/dlls/ntdll/unix/signal_i386.c b/dlls/ntdll/unix/signal_i386.c
index da635c0f516..ee88f178c91 100644
--- a/dlls/ntdll/unix/signal_i386.c
+++ b/dlls/ntdll/unix/signal_i386.c
@@ -2473,6 +2473,15 @@ PCONTEXT DECLSPEC_HIDDEN get_initial_context( LPTHREAD_START_ROUTINE entry, void
wait_suspend( &context );
ctx = (CONTEXT *)((ULONG_PTR)context.Esp & ~15) - 1;
*ctx = context;
+ if (context.ContextFlags & CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)
+ {
+ x86_thread_data()->dr0 = context.Dr0;
+ x86_thread_data()->dr1 = context.Dr1;
+ x86_thread_data()->dr2 = context.Dr2;
+ x86_thread_data()->dr3 = context.Dr3;
+ x86_thread_data()->dr6 = context.Dr6;
+ x86_thread_data()->dr7 = context.Dr7;
+ }
}
else
{
diff --git a/dlls/ntdll/unix/signal_x86_64.c b/dlls/ntdll/unix/signal_x86_64.c
index b2cda5eef13..8f04818411b 100644
--- a/dlls/ntdll/unix/signal_x86_64.c
+++ b/dlls/ntdll/unix/signal_x86_64.c
@@ -2745,6 +2745,15 @@ PCONTEXT DECLSPEC_HIDDEN get_initial_context( LPTHREAD_START_ROUTINE entry, void
wait_suspend( &context );
ctx = (CONTEXT *)((ULONG_PTR)context.Rsp & ~15) - 1;
*ctx = context;
+ if (context.ContextFlags & CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64)
+ {
+ amd64_thread_data()->dr0 = context.Dr0;
+ amd64_thread_data()->dr1 = context.Dr1;
+ amd64_thread_data()->dr2 = context.Dr2;
+ amd64_thread_data()->dr3 = context.Dr3;
+ amd64_thread_data()->dr6 = context.Dr6;
+ amd64_thread_data()->dr7 = context.Dr7;
+ }
}
else
{
--
2.31.1
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