update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / tools / vcpkg / ports / libffi / win64-disable-stackframe-check.patch

diff --git a/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/ports/libffi/win64-disable-stackframe-check.patch b/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/ports/libffi/win64-disable-stackframe-check.patch
new file mode 100644 (file)
index 0000000..ce3d3ca
--- /dev/null
+++ b/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/ports/libffi/win64-disable-stackframe-check.patch
@@ -0,0 +1,43 @@
+From 53291b332b1bc061a3409d3b60c38f313609b98e Mon Sep 17 00:00:00 2001
+From: Matthew Waters <matthew@centricular.com>
+Date: Fri, 16 Mar 2018 15:10:04 +1100
+Subject: [PATCH] x86/win64: disable runtime stack frame checks with msvc
+ around built assembly
+
+MSVC can add truntime code that checks if a stack frame is mismanaged
+however our custom assembly delibrately accesses and modifies the parent
+stack frame.  Fortunately we can disable that specific check for the
+function call so do that.
+---
+ src/x86/ffiw64.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/src/x86/ffiw64.c b/src/x86/ffiw64.c
+index f7875252..88bb3a34 100644
+--- a/src/x86/ffiw64.c
++++ b/src/x86/ffiw64.c
+@@ -106,6 +106,14 @@ EFI64(ffi_prep_cif_machdep)(ffi_cif *cif)
+   return FFI_OK;
+ }
+ 
++/* we perform some black magic here to use some of the parent's
++ * stack frame in ff_call_win64() that breaks with the msvc compiler
++ * with the /RTCs or /GZ flags.  Disable the 'Stack frame run time
++ * error checking' for this function so we don't hit weird exceptions
++ * in debug builds */
++#if defined(_MSC_VER)
++#pragma runtime_checks("s", off)
++#endif
+ static void
+ ffi_call_int (ffi_cif *cif, void (*fn)(void), void *rvalue,
+             void **avalue, void *closure)
+@@ -170,6 +178,9 @@ ffi_call_int (ffi_cif *cif, void (*fn)(void), void *rvalue,
+ 
+   ffi_call_win64 (stack, frame, closure);
+ }
++#if defined(_MSC_VER)
++#pragma runtime_checks("s", restore)
++#endif
+ 
+ void
+ EFI64(ffi_call)(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)