diff options
Diffstat (limited to 'contrib/plugins')
| -rw-r--r-- | contrib/plugins/Makefile | 26 | ||||
| -rw-r--r-- | contrib/plugins/win32_linker.c | 34 |
2 files changed, 56 insertions, 4 deletions
diff --git a/contrib/plugins/Makefile b/contrib/plugins/Makefile index 8ba78c7a32..1783750cf6 100644 --- a/contrib/plugins/Makefile +++ b/contrib/plugins/Makefile @@ -17,12 +17,25 @@ NAMES += execlog NAMES += hotblocks NAMES += hotpages NAMES += howvec + +# The lockstep example communicates using unix sockets, +# and can't be easily made to work on windows. +ifneq ($(CONFIG_WIN32),y) NAMES += lockstep +endif + NAMES += hwprofile NAMES += cache NAMES += drcov -SONAMES := $(addsuffix .so,$(addprefix lib,$(NAMES))) +ifeq ($(CONFIG_WIN32),y) +SO_SUFFIX := .dll +LDLIBS += $(shell $(PKG_CONFIG) --libs glib-2.0) +else +SO_SUFFIX := .so +endif + +SONAMES := $(addsuffix $(SO_SUFFIX),$(addprefix lib,$(NAMES))) # The main QEMU uses Glib extensively so it's perfectly fine to use it # in plugins (which many example do). @@ -35,15 +48,20 @@ all: $(SONAMES) %.o: %.c $(CC) $(CFLAGS) $(PLUGIN_CFLAGS) -c -o $@ $< -lib%.so: %.o -ifeq ($(CONFIG_DARWIN),y) +ifeq ($(CONFIG_WIN32),y) +lib%$(SO_SUFFIX): %.o win32_linker.o ../../plugins/qemu_plugin_api.lib + $(CC) -shared -o $@ $^ $(LDLIBS) +else ifeq ($(CONFIG_DARWIN),y) +lib%$(SO_SUFFIX): %.o $(CC) -bundle -Wl,-undefined,dynamic_lookup -o $@ $^ $(LDLIBS) else +lib%$(SO_SUFFIX): %.o $(CC) -shared -o $@ $^ $(LDLIBS) endif + clean: - rm -f *.o *.so *.d + rm -f *.o *$(SO_SUFFIX) *.d rm -Rf .libs .PHONY: all clean diff --git a/contrib/plugins/win32_linker.c b/contrib/plugins/win32_linker.c new file mode 100644 index 0000000000..7534b2b8bf --- /dev/null +++ b/contrib/plugins/win32_linker.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2023, Greg Manning <gmanning@rapitasystems.com> + * + * This hook, __pfnDliFailureHook2, is documented in the microsoft documentation here: + * https://learn.microsoft.com/en-us/cpp/build/reference/error-handling-and-notification + * It gets called when a delay-loaded DLL encounters various errors. + * We handle the specific case of a DLL looking for a "qemu.exe", + * and give it the running executable (regardless of what it is named). + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + */ + +#include <windows.h> +#include <delayimp.h> + +FARPROC WINAPI dll_failure_hook(unsigned dliNotify, PDelayLoadInfo pdli); + + +PfnDliHook __pfnDliFailureHook2 = dll_failure_hook; + +FARPROC WINAPI dll_failure_hook(unsigned dliNotify, PDelayLoadInfo pdli) { + if (dliNotify == dliFailLoadLib) { + /* If the failing request was for qemu.exe, ... */ + if (strcmp(pdli->szDll, "qemu.exe") == 0) { + /* Then pass back a pointer to the top level module. */ + HMODULE top = GetModuleHandle(NULL); + return (FARPROC) top; + } + } + /* Otherwise we can't do anything special. */ + return 0; +} + |