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-rw-r--r--xpcom/reflect/xptcall/md/test/README6
-rwxr-xr-xxpcom/reflect/xptcall/md/test/clean.bat5
-rw-r--r--xpcom/reflect/xptcall/md/test/invoke_test.cpp187
-rwxr-xr-xxpcom/reflect/xptcall/md/test/mk_invoke.bat9
-rwxr-xr-xxpcom/reflect/xptcall/md/test/mk_stub.bat9
-rw-r--r--xpcom/reflect/xptcall/md/test/moz.build11
-rw-r--r--xpcom/reflect/xptcall/md/test/stub_test.cpp209
7 files changed, 436 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/test/README b/xpcom/reflect/xptcall/md/test/README
new file mode 100644
index 0000000000..04850b2e01
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/README
@@ -0,0 +1,6 @@
+These are just simple test programs in which stripped down versions of the
+XPConnect invoke and stubs code can be built and tested as the code is brought
+up on various platforms. These probrams do not test the param sizing and copying
+functionality of the routines. However, they do supply a place where the lowest
+level assembly language code can be developed and debugged in the simplest of
+contexts before it is moved into the real routines. \ No newline at end of file
diff --git a/xpcom/reflect/xptcall/md/test/clean.bat b/xpcom/reflect/xptcall/md/test/clean.bat
new file mode 100755
index 0000000000..f320e222c9
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/clean.bat
@@ -0,0 +1,5 @@
+@echo off
+echo deleting intermediate files
+if exist *.obj del *.obj > NUL
+if exist *.ilk del *.ilk > NUL
+if exist *.pdb del *.pdb > NUL \ No newline at end of file
diff --git a/xpcom/reflect/xptcall/md/test/invoke_test.cpp b/xpcom/reflect/xptcall/md/test/invoke_test.cpp
new file mode 100644
index 0000000000..f23a9ccf15
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/invoke_test.cpp
@@ -0,0 +1,187 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+
+typedef unsigned nsresult;
+typedef unsigned uint32_t;
+typedef unsigned nsXPCVariant;
+
+#if defined(WIN32)
+# define NS_IMETHOD virtual nsresult __stdcall
+# define NS_IMETHODIMP nsresult __stdcall
+#else
+# define NS_IMETHOD virtual nsresult
+# define NS_IMETHODIMP nsresult
+#endif
+
+class base {
+ public:
+ NS_IMETHOD ignored() = 0;
+};
+
+class foo : public base {
+ public:
+ NS_IMETHOD callme1(int i, int j) = 0;
+ NS_IMETHOD callme2(int i, int j) = 0;
+ NS_IMETHOD callme3(int i, int j) = 0;
+};
+
+class bar : public foo {
+ public:
+ NS_IMETHOD ignored() override;
+ NS_IMETHOD callme1(int i, int j) override;
+ NS_IMETHOD callme2(int i, int j) override;
+ NS_IMETHOD callme3(int i, int j) override;
+};
+
+/*
+class baz : public base {
+public:
+ NS_IMETHOD ignored() override;
+ NS_IMETHOD callme1() override;
+ NS_IMETHOD callme2() override;
+ NS_IMETHOD callme3() override;
+ void setfoo(foo* f) {other = f;}
+
+ foo* other;
+};
+NS_IMETHODIMP baz::ignored(){return 0;}
+*/
+
+NS_IMETHODIMP bar::ignored() { return 0; }
+
+NS_IMETHODIMP bar::callme1(int i, int j) {
+ printf("called bar::callme1 with: %d %d\n", i, j);
+ return 5;
+}
+
+NS_IMETHODIMP bar::callme2(int i, int j) {
+ printf("called bar::callme2 with: %d %d\n", i, j);
+ return 5;
+}
+
+NS_IMETHODIMP bar::callme3(int i, int j) {
+ printf("called bar::callme3 with: %d %d\n", i, j);
+ return 5;
+}
+
+void docall(foo* f, int i, int j) { f->callme1(i, j); }
+
+/***************************************************************************/
+#if defined(WIN32)
+
+static uint32_t __stdcall invoke_count_words(uint32_t paramCount,
+ nsXPCVariant* s) {
+ return paramCount;
+}
+
+static void __stdcall invoke_copy_to_stack(uint32_t* d, uint32_t paramCount,
+ nsXPCVariant* s) {
+ for (uint32_t i = 0; i < paramCount; i++, d++, s++) {
+ *((uint32_t*)d) = *((uint32_t*)s);
+ }
+}
+
+static nsresult __stdcall DoInvoke(void* that, uint32_t index,
+ uint32_t paramCount, nsXPCVariant* params) {
+ __asm {
+ push params
+ push paramCount
+ call invoke_count_words // stdcall, result in eax
+ shl eax,2 // *= 4
+ sub esp,eax // make space for params
+ mov edx,esp
+ push params
+ push paramCount
+ push edx
+ call invoke_copy_to_stack // stdcall
+ mov ecx,that // instance in ecx
+ push ecx // push this
+ mov edx,[ecx] // vtable in edx
+ mov eax,index
+ shl eax,2 // *= 4
+ add edx,eax
+ call [edx] // stdcall, i.e. callee cleans up stack.
+ }
+}
+
+#else
+/***************************************************************************/
+// just Linux_x86 now. Add other later...
+
+static uint32_t invoke_count_words(uint32_t paramCount, nsXPCVariant* s) {
+ return paramCount;
+}
+
+static void invoke_copy_to_stack(uint32_t* d, uint32_t paramCount,
+ nsXPCVariant* s) {
+ for (uint32_t i = 0; i < paramCount; i++, d++, s++) {
+ *((uint32_t*)d) = *((uint32_t*)s);
+ }
+}
+
+static nsresult DoInvoke(void* that, uint32_t index, uint32_t paramCount,
+ nsXPCVariant* params) {
+ uint32_t result;
+ void* fn_count = invoke_count_words;
+ void* fn_copy = invoke_copy_to_stack;
+
+ __asm__ __volatile__(
+ "pushl %4\n\t"
+ "pushl %3\n\t"
+ "movl %5, %%eax\n\t"
+ "call *%%eax\n\t" /* count words */
+ "addl $0x8, %%esp\n\t"
+ "shl $2, %%eax\n\t" /* *= 4 */
+ "subl %%eax, %%esp\n\t" /* make room for params */
+ "movl %%esp, %%edx\n\t"
+ "pushl %4\n\t"
+ "pushl %3\n\t"
+ "pushl %%edx\n\t"
+ "movl %6, %%eax\n\t"
+ "call *%%eax\n\t" /* copy params */
+ "addl $0xc, %%esp\n\t"
+ "movl %1, %%ecx\n\t"
+ "pushl %%ecx\n\t"
+ "movl (%%ecx), %%edx\n\t"
+ "movl %2, %%eax\n\t" /* function index */
+ "shl $2, %%eax\n\t" /* *= 4 */
+ "addl $8, %%eax\n\t" /* += 8 */
+ "addl %%eax, %%edx\n\t"
+ "call *(%%edx)\n\t" /* safe to not cleanup esp */
+ "movl %%eax, %0"
+ : "=g"(result) /* %0 */
+ : "g"(that), /* %1 */
+ "g"(index), /* %2 */
+ "g"(paramCount), /* %3 */
+ "g"(params), /* %4 */
+ "g"(fn_count), /* %5 */
+ "g"(fn_copy) /* %6 */
+ : "ax", "cx", "dx", "memory");
+
+ return result;
+}
+
+#endif
+/***************************************************************************/
+
+int main() {
+ nsXPCVariant params1[2] = {1, 2};
+ nsXPCVariant params2[2] = {2, 4};
+ nsXPCVariant params3[2] = {3, 6};
+
+ foo* a = new bar();
+
+ // printf("calling via C++...\n");
+ // docall(a, 12, 24);
+
+ printf("calling via ASM...\n");
+ DoInvoke(a, 1, 2, params1);
+ DoInvoke(a, 2, 2, params2);
+ DoInvoke(a, 3, 2, params3);
+
+ return 0;
+}
diff --git a/xpcom/reflect/xptcall/md/test/mk_invoke.bat b/xpcom/reflect/xptcall/md/test/mk_invoke.bat
new file mode 100755
index 0000000000..10a9be51de
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/mk_invoke.bat
@@ -0,0 +1,9 @@
+@echo off
+@echo deleing old output
+if exist invoke_test.obj del invoke_test.obj > NUL
+if exist invoke_test.ilk del invoke_test.ilk > NUL
+if exist *.pdb del *.pdb > NUL
+if exist invoke_test.exe del invoke_test.exe > NUL
+
+@echo building...
+cl /nologo -Zi -DWIN32 invoke_test.cpp \ No newline at end of file
diff --git a/xpcom/reflect/xptcall/md/test/mk_stub.bat b/xpcom/reflect/xptcall/md/test/mk_stub.bat
new file mode 100755
index 0000000000..f9af17affe
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/mk_stub.bat
@@ -0,0 +1,9 @@
+@echo off
+@echo deleing old output
+if exist stub_test.obj del stub_test.obj > NUL
+if exist stub_test.ilk del stub_test.ilk > NUL
+if exist *.pdb del *.pdb > NUL
+if exist stub_test.exe del stub_test.exe > NUL
+
+@echo building...
+cl /nologo -Zi -DWIN32 stub_test.cpp \ No newline at end of file
diff --git a/xpcom/reflect/xptcall/md/test/moz.build b/xpcom/reflect/xptcall/md/test/moz.build
new file mode 100644
index 0000000000..f31bcf64a3
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/moz.build
@@ -0,0 +1,11 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SimplePrograms(
+ [
+ "stub_test",
+ ]
+)
diff --git a/xpcom/reflect/xptcall/md/test/stub_test.cpp b/xpcom/reflect/xptcall/md/test/stub_test.cpp
new file mode 100644
index 0000000000..c83eb93ccc
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/test/stub_test.cpp
@@ -0,0 +1,209 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+
+typedef unsigned nsresult;
+typedef unsigned uint32_t;
+typedef unsigned nsXPCVariant;
+
+#if defined(WIN32)
+# define NS_IMETHOD virtual nsresult __stdcall
+# define NS_IMETHODIMP nsresult __stdcall
+#else
+# define NS_IMETHOD virtual nsresult
+# define NS_IMETHODIMP nsresult
+#endif
+
+class base {
+ public:
+ NS_IMETHOD ignored() = 0;
+};
+
+class foo : public base {
+ public:
+ NS_IMETHOD callme1(int i, int j) = 0;
+ NS_IMETHOD callme2(int i, int j) = 0;
+ NS_IMETHOD callme3(int i, int j) = 0;
+};
+
+class bar : public foo {
+ public:
+ NS_IMETHOD ignored() override;
+ NS_IMETHOD callme1(int i, int j) override;
+ NS_IMETHOD callme2(int i, int j) override;
+ NS_IMETHOD callme3(int i, int j) override;
+};
+
+class baz : public base {
+ public:
+ NS_IMETHOD ignored() override;
+ NS_IMETHOD callme1() override;
+ NS_IMETHOD callme2() override;
+ NS_IMETHOD callme3() override;
+ void setfoo(foo* f) { other = f; }
+
+ foo* other;
+};
+NS_IMETHODIMP baz::ignored() { return 0; }
+
+NS_IMETHODIMP bar::ignored() { return 0; }
+
+NS_IMETHODIMP bar::callme1(int i, int j) {
+ printf("called bar::callme1 with: %d %d\n", i, j);
+ return 15;
+}
+
+NS_IMETHODIMP bar::callme2(int i, int j) {
+ printf("called bar::callme2 with: %d %d\n", i, j);
+ return 25;
+}
+
+NS_IMETHODIMP bar::callme3(int i, int j) {
+ printf("called bar::callme3 with: %d %d\n", i, j);
+ return 35;
+}
+
+void docall(foo* f, int i, int j) { f->callme1(i, j); }
+
+/***************************************************************************/
+#if defined(WIN32)
+
+static int __stdcall PrepareAndDispatch(baz* self, uint32_t methodIndex,
+ uint32_t* args,
+ uint32_t* stackBytesToPop) {
+ fprintf(stdout, "PrepareAndDispatch (%p, %d, %p)\n", (void*)self, methodIndex,
+ (void*)args);
+ foo* a = self->other;
+ int p1 = (int)*args;
+ int p2 = (int)*(args + 1);
+ int out = 0;
+ switch (methodIndex) {
+ case 1:
+ out = a->callme1(p1, p2);
+ break;
+ case 2:
+ out = a->callme2(p1, p2);
+ break;
+ case 3:
+ out = a->callme3(p1, p2);
+ break;
+ }
+ *stackBytesToPop = 2 * 4;
+ return out;
+}
+
+# ifndef __GNUC__
+static __declspec(naked) void SharedStub(void) {
+ __asm {
+ push ebp // set up simple stack frame
+ mov ebp, esp // stack has: ebp/vtbl_index/retaddr/this/args
+ push ecx // make room for a ptr
+ lea eax, [ebp-4] // pointer to stackBytesToPop
+ push eax
+ lea ecx, [ebp+16] // pointer to args
+ push ecx
+ mov edx, [ebp+4] // vtbl_index
+ push edx
+ mov eax, [ebp+12] // this
+ push eax
+ call PrepareAndDispatch
+ mov edx, [ebp+8] // return address
+ mov ecx, [ebp-4] // stackBytesToPop
+ add ecx, 12 // for this, the index, and ret address
+ mov esp, ebp
+ pop ebp
+ add esp, ecx // fix up stack pointer
+ jmp edx // simulate __stdcall return
+ }
+}
+
+// these macros get expanded (many times) in the file #included below
+# define STUB_ENTRY(n) \
+ __declspec(naked) nsresult __stdcall baz::callme##n() { \
+ __asm push n __asm jmp SharedStub \
+ }
+
+# else /* __GNUC__ */
+
+# define STUB_ENTRY(n) \
+ nsresult __stdcall baz::callme##n() { \
+ uint32_t *args, stackBytesToPop; \
+ int result = 0; \
+ baz* obj; \
+ __asm__ __volatile__( \
+ "leal 0x0c(%%ebp), %0\n\t" /* args */ \
+ "movl 0x08(%%ebp), %1\n\t" /* this */ \
+ : "=r"(args), "=r"(obj)); \
+ result = PrepareAndDispatch(obj, n, args, &stackBytesToPop); \
+ fprintf(stdout, "stub returning: %d\n", result); \
+ fprintf(stdout, "bytes to pop: %d\n", stackBytesToPop); \
+ return result; \
+ }
+
+# endif /* ! __GNUC__ */
+
+#else
+/***************************************************************************/
+// just Linux_x86 now. Add other later...
+
+static int PrepareAndDispatch(baz* self, uint32_t methodIndex, uint32_t* args) {
+ foo* a = self->other;
+ int p1 = (int)*args;
+ int p2 = (int)*(args + 1);
+ switch (methodIndex) {
+ case 1:
+ a->callme1(p1, p2);
+ break;
+ case 2:
+ a->callme2(p1, p2);
+ break;
+ case 3:
+ a->callme3(p1, p2);
+ break;
+ }
+ return 1;
+}
+
+# define STUB_ENTRY(n) \
+ nsresult baz::callme##n() { \
+ void* method = PrepareAndDispatch; \
+ nsresult result; \
+ __asm__ __volatile__( \
+ "leal 0x0c(%%ebp), %%ecx\n\t" /* args */ \
+ "pushl %%ecx\n\t" \
+ "pushl $" #n \
+ "\n\t" /* method index */ \
+ "movl 0x08(%%ebp), %%ecx\n\t" /* this */ \
+ "pushl %%ecx\n\t" \
+ "call *%%edx" /* PrepareAndDispatch */ \
+ : "=a"(result) /* %0 */ \
+ : "d"(method) /* %1 */ \
+ : "memory"); \
+ return result; \
+ }
+
+#endif
+/***************************************************************************/
+
+STUB_ENTRY(1)
+STUB_ENTRY(2)
+STUB_ENTRY(3)
+
+int main() {
+ foo* a = new bar();
+ baz* b = new baz();
+
+ /* here we make the global 'check for alloc failure' checker happy */
+ if (!a || !b) return 1;
+
+ foo* c = (foo*)b;
+
+ b->setfoo(a);
+ c->callme1(1, 2);
+ c->callme2(2, 4);
+ c->callme3(3, 6);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 06:57:06 +0000