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, 24 insertions, 8 deletions

diff --git a/src/box64context.c b/src/box64context.c
index 5d5155fa..b52e41e3 100644
--- a/src/box64context.c
+++ b/src/box64context.c
@@ -23,6 +23,9 @@
 #include "gltools.h"
 #include "rbtree.h"
 #include "dynarec.h"
+#ifdef BOX32
+#include "box32.h"
+#endif
 
 EXPORTDYN
 void initAllHelpers(box64context_t* context)
@@ -31,6 +34,9 @@ void initAllHelpers(box64context_t* context)
     if(inited)
         return;
     my_context = context;
+    #ifdef BOX32
+    init_hash_helper();
+    #endif
     init_pthread_helper();
     init_bridge_helper();
     init_signal_helper(context);
@@ -47,6 +53,9 @@ void finiAllHelpers(box64context_t* context)
     fini_pthread_helper(context);
     fini_signal_helper();
     fini_bridge_helper();
+    #ifdef BOX32
+    fini_hash_helper();
+    #endif
     fini_custommem_helper(context);
     finied = 1;
 }
@@ -75,6 +84,7 @@ void free_tlsdatasize(void* p)
 }
 
 void x64Syscall(x64emu_t *emu);
+void x86Syscall(x64emu_t *emu);
 
 int unlockMutex()
 {
@@ -223,15 +233,21 @@ box64context_t *NewBox64Context(int argc)
     context->system = NewBridge();
     // Cannot use Bridge name as the map is not initialized yet
     // create vsyscall
-    context->vsyscall = AddBridge(context->system, vFEv, x64Syscall, 0, NULL);
+    context->vsyscall = AddBridge(context->system, vFEv, box64_is32bits?x86Syscall:x64Syscall, 0, NULL);
     // create the vsyscalls
-    context->vsyscalls[0] = AddVSyscall(context->system, 96);
-    context->vsyscalls[1] = AddVSyscall(context->system, 201);
-    context->vsyscalls[2] = AddVSyscall(context->system, 309);
-    // create the alternate to map at address
-    addAlternate((void*)0xffffffffff600000, (void*)context->vsyscalls[0]);
-    addAlternate((void*)0xffffffffff600400, (void*)context->vsyscalls[1]);
-    addAlternate((void*)0xffffffffff600800, (void*)context->vsyscalls[2]);
+    if(box64_is32bits) {
+        #ifdef BOX32
+        addAlternate((void*)0xffffe400, from_ptrv(context->vsyscall));
+        #endif
+    } else {
+        context->vsyscalls[0] = AddVSyscall(context->system, 96);
+        context->vsyscalls[1] = AddVSyscall(context->system, 201);
+        context->vsyscalls[2] = AddVSyscall(context->system, 309);
+        // create the alternate to map at address
+        addAlternate((void*)0xffffffffff600000, (void*)context->vsyscalls[0]);
+        addAlternate((void*)0xffffffffff600400, (void*)context->vsyscalls[1]);
+        addAlternate((void*)0xffffffffff600800, (void*)context->vsyscalls[2]);
+    }
     // create exit bridge
     context->exit_bridge = AddBridge(context->system, NULL, NULL, 0, NULL);
     // get handle to box64 itself