[WIP] LLVM changes

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src/mono/mono/mini/aot-compiler.c

@@ -11303,6 +11303,7 @@ init_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info)
 	info->plt_got_offset_base = acfg->plt_got_offset_base;
 	info->plt_got_info_offset_base = acfg->plt_got_info_offset_base;
 	info->got_size = acfg->got_offset * sizeof (target_mgreg_t);
+	info->llvm_got_size = acfg->llvm_got_offset * sizeof (target_mgreg_t);
 	info->plt_size = acfg->plt_offset;
 	info->nmethods = acfg->nmethods;
 	info->call_table_entry_size = acfg->call_table_entry_size;
@@ -11356,16 +11357,16 @@ emit_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info)
 	sindex = 0;
 	symbols [sindex ++] = acfg->got_symbol;
 	if (acfg->llvm) {
-		symbols [sindex ++] = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, acfg->llvm_got_symbol);
 		symbols [sindex ++] = acfg->llvm_eh_frame_symbol;
 	} else {
 		symbols [sindex ++] = NULL;
-		symbols [sindex ++] = NULL;
 	}
 	/* llvm_get_method */
 	symbols [sindex ++] = NULL;
 	/* llvm_get_unbox_tramp */
 	symbols [sindex ++] = NULL;
+	/* llvm_init_aotconst */
+	symbols [sindex ++] = NULL;
 	if (!acfg->aot_opts.llvm_only) {
 		symbols [sindex ++] = "jit_code_start";
 		symbols [sindex ++] = "jit_code_end";
@@ -11460,6 +11461,7 @@ emit_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info)
 	emit_int32 (acfg, info->plt_got_offset_base);
 	emit_int32 (acfg, info->plt_got_info_offset_base);
 	emit_int32 (acfg, info->got_size);
+	emit_int32 (acfg, info->llvm_got_size);
 	emit_int32 (acfg, info->plt_size);
 	emit_int32 (acfg, info->nmethods);
 	emit_int32 (acfg, info->nextra_methods);

src/mono/mono/mini/aot-runtime.c

@@ -2078,9 +2078,12 @@ init_amodule_got (MonoAotModule *amodule, gboolean preinit)
 		for (i = 0; i < npatches; ++i)
 			amodule->got [i] = amodule->shared_got [i];
 	}
-	if (amodule->llvm_got) {
-		for (i = 0; i < npatches; ++i)
+	if (amodule->info.flags & MONO_AOT_FILE_FLAG_WITH_LLVM) {
+		void (*init_aotconst) (int, gpointer) = (void (*)(int, gpointer))amodule->info.llvm_init_aotconst;
+		for (i = 0; i < npatches; ++i) {
 			amodule->llvm_got [i] = amodule->shared_got [i];
+			init_aotconst (i, amodule->llvm_got [i]);
+		}
 	}
 
 	mono_mempool_destroy (mp);
@@ -2299,7 +2302,10 @@ load_aot_module (MonoAssemblyLoadContext *alc, MonoAssembly *assembly, gpointer
 	memcpy (&amodule->info, info, sizeof (*info));
 
 	amodule->got = (void **)amodule->info.jit_got;
-	amodule->llvm_got = (void **)amodule->info.llvm_got;
+	/*
+	 * The llvm code keeps its data in separate scalar variables, so this just used by this module.
+	 */
+	amodule->llvm_got = g_malloc0 (sizeof (gpointer) * amodule->info.llvm_got_size);
 	amodule->globals = globals;
 	amodule->sofile = sofile;
 	amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
@@ -4704,6 +4710,11 @@ init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, M
 				got [got_slots [pindex]] = addr;
 				if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
 					register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
+
+				if (llvm) {
+					void (*init_aotconst) (int, gpointer) = (void (*)(int, gpointer))amodule->info.llvm_init_aotconst;
+					init_aotconst (got_slots [pindex], addr);
+				}
 			}
 			ji->type = MONO_PATCH_INFO_NONE;
 		}

src/mono/mono/mini/aot-runtime.h

@@ -11,7 +11,7 @@
 #include "mini.h"
 
 /* Version number of the AOT file format */
-#define MONO_AOT_FILE_VERSION 175
+#define MONO_AOT_FILE_VERSION 176
 
 #define MONO_AOT_TRAMP_PAGE_SIZE 16384
 
@@ -113,14 +113,14 @@ typedef struct MonoAotFileInfo
 #define MONO_AOT_FILE_INFO_FIRST_SYMBOL jit_got
 	/* Global Offset Table for JITted code */
 	gpointer jit_got;
-	/* Global Offset Table for LLVM code */
-	gpointer llvm_got;
 	/* Mono EH Frame created by llc when using LLVM */
 	gpointer mono_eh_frame;
 	/* Points to the get_method () function in the LLVM image or NULL */
 	gpointer llvm_get_method;
 	/* Points to the get_unbox_tramp () function in the LLVM image or NULL */
 	gpointer llvm_get_unbox_tramp;
+	/* Points to the init_aotconst () function in the LLVM image or NULL */
+	gpointer llvm_init_aotconst;
 	gpointer jit_code_start;
 	gpointer jit_code_end;
 	gpointer method_addresses;
@@ -184,6 +184,8 @@ typedef struct MonoAotFileInfo
 	guint32 plt_got_info_offset_base;
 	/* Number of entries in the GOT */
 	guint32 got_size;
+	/* Number of entries in the LLVM GOT */
+	guint32 llvm_got_size;
 	/* Number of entries in the PLT */
 	guint32 plt_size;
 	/* Number of methods */