Added preliminary Box32 support (#1760)

* Improve the ReserveHigMemory helper function

* [BOX32] Added some wrapping infrastructure

* [BOX32] More wrapped 32bits lib infrastructure

* [BOX32] Added callback and tls 32bits handling

* [BOX32] Added more 32bits, around wrappers and elfs

* [BOX32] Added the 32bits version of myalign

* [BOX32] More wrapped libs and 32bits fixes and imrpovments

* [BOX32] Added some 32bits tests

* [BOX32] Try to enable some Box32 build and test on the CI

* [BOX32] Disable Box32 testing on CI platform that use qemu

* [BOX32] Another attempt to disable Box32 testing on CI platform that use qemu

* [BOX32] Small fix for another attempt to disable Box32 testing on CI platform that use qemu

* [BOX32] Yet another fix for another attempt to disable Box32 testing on CI platform that use qemu

* [BOX32] Fixed a typo in CI script

* [BOX32] Better scratch alighnment and enabled more tests

* [BOX32] Added (partial) wrapped 32bits librt

* [BOX32] Added mention of Box32 in README

* [BOX32] Added phtread handling, and numerous fixes to 32bits handling. [ARM64_DYNAREC] Fixed access to segment with negative offset

* [BOX32] Added system libs and cpp testing, plus some more fixes

* [BOX32] Fix previous commit

* [BOX32] Better stack adjustment for 32bits processes

* [BOX32] Added getenv wrapped 32bits function and friends

* [BOX32] Don't look for box86 for a Box32 build

* [BOX32] Don't do 32bits cppThreads test for now on CI

* [BOX32] Enabled a few more 32bits tests

* [BOX32] For ld_lib_path for both CppThreads tests

* [BOX32] [ANDROID] Some Fixes for Android Build

* [BOX32] Still need to disable cppThread_32bits test on CI for some reason

* [BOX32] [ANDROID] Don't show PreInit Array Warning (#1751)

* [BOX32] [ANDROID] One More Fix for Android Build That I forgotten to … (#1752)

* [BOX32] [ANDROID] One More Fix for Android Build That I forgotten to push before

* [BOX32] [ANDROID] Try to Create __libc_init

* [BOX32] [ANDROID] Try to disable NEEDED_LIBS for now (libdl is not wrapped)

* [BOX32] Updated generated files

* [BOX32] Added 32bits context functions

* [BOX32] Added 32bits signal handling

* [BOX32] Added some missing 32bits elfloader functions

* [BOX32] Fix build on x86_64 machine

* [BOX32] Better fix for x86_64 build

* [BOX32] Actually added missing libs, and re-enabled cppThreads_32bits test

* [BOX32] Added wrapped 32bits libdl

* [BOX32] Try to re-enabled Box32 test on CI for ARM64 builds

* [BOX32] fine-tuning Box32 test on CI for ARM64 builds

* [BOX32] More fine-tuning to Box32 test on CI for ARM64 builds

* [BOX32] Enabled Box32 test on CI for LA64 and RV64 builds too

* [BOX32] re-Disabled Box32 test on CI for LA64 and RV64 builds, not working for now

* [BOX32] Temporarily disabled cppThreads_32bits test on CI

---------

Co-authored-by: KreitinnSoftware <pablopro5051@gmail.com>
Co-authored-by: KreitinnSoftware <80591934+KreitinnSoftware@users.noreply.github.com>

1 files changed, 97 insertions, 0 deletions

diff --git a/src/wrapped32/wrappedlibpthread.c b/src/wrapped32/wrappedlibpthread.c
new file mode 100755
index 00000000..d7881f6b
--- /dev/null
+++ b/src/wrapped32/wrappedlibpthread.c
@@ -0,0 +1,97 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include "wrappedlibs.h"
+
+#include "debug.h"
+#include "wrapper32.h"
+#include "bridge.h"
+#include "librarian/library_private.h"
+#include "x64emu.h"
+#include "emu/x64emu_private.h"
+#include "box32context.h"
+#include "librarian.h"
+
+static const char* libpthreadName = "libpthread.so.0";
+#define LIBNAME libpthread
+
+typedef int (*iFpp_t)(void*, void*);
+typedef int (*iFppu_t)(void*, void*, uint32_t);
+EXPORT int my32_pthread_setname_np(x64emu_t* emu, void* t, void* n)
+{
+    static void* f = NULL;
+    static int need_load = 1;
+    if(need_load) {
+        library_t* lib = GetLibInternal(libpthreadName);
+        if(!lib) return 0;
+        f = dlsym(lib->w.lib, "pthread_setname_np");
+        need_load = 0;
+    }
+    if(f)
+        return ((iFpp_t)f)(t, n);
+    return 0;
+}
+EXPORT int my32_pthread_getname_np(x64emu_t* emu, void* t, void* n, uint32_t s)
+{
+    static void* f = NULL;
+    static int need_load = 1;
+    if(need_load) {
+        library_t* lib = GetLibInternal(libpthreadName);
+        if(!lib) return 0;
+        f = dlsym(lib->w.lib, "pthread_getname_np");
+        need_load = 0;
+    }
+    if(f)
+        return ((iFppu_t)f)(t, n, s);
+    else 
+        strncpy((char*)n, "dummy", s);
+    return 0;
+}
+
+EXPORT int my32_pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
+{
+    return pthread_rwlock_wrlock(rwlock);
+}
+EXPORT int my32_pthread_rwlock_rdlock(pthread_rwlock_t* rwlock)
+{
+    return pthread_rwlock_rdlock(rwlock);
+}
+EXPORT int my32_pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
+{
+    return pthread_rwlock_unlock(rwlock);
+}
+
+EXPORT int32_t my32_pthread_atfork(x64emu_t *emu, void* prepare, void* parent, void* child)
+{
+    // this is partly incorrect, because the emulated functions should be executed by actual fork and not by my32_atfork...
+    if(my_context->atfork_sz==my_context->atfork_cap) {
+        my_context->atfork_cap += 4;
+        my_context->atforks = (atfork_fnc_t*)realloc(my_context->atforks, my_context->atfork_cap*sizeof(atfork_fnc_t));
+    }
+    int i = my_context->atfork_sz++;
+    my_context->atforks[i].prepare = (uintptr_t)prepare;
+    my_context->atforks[i].parent = (uintptr_t)parent;
+    my_context->atforks[i].child = (uintptr_t)child;
+    my_context->atforks[i].handle = NULL;
+    
+    return 0;
+}
+EXPORT int32_t my32___pthread_atfork(x64emu_t *emu, void* prepare, void* parent, void* child) __attribute__((alias("my32_pthread_atfork")));
+
+EXPORT void my32___pthread_initialize()
+{
+    // nothing, the lib initialize itself now
+}
+
+#define PRE_INIT\
+    if(1)                                                       \
+        lib->w.lib = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL);     \
+    else
+
+#include "wrappedlib_init32.h"
+