x64 NDR: Fix crashes/undefined behaviour with 2+ GB of allocated RAM

2025-03-01 22:31:10 +06:00
parent 843dee5707
commit f290cc0173
3 changed files with 34 additions and 34 deletions
--- a/src/codegen_new/codegen_backend_x86-64.c
+++ b/src/codegen_new/codegen_backend_x86-64.c
@@ -360,7 +360,7 @@ codegen_backend_prologue(codeblock_t *block)
        host_x86_MOV32_BASE_OFFSET_REG(block, REG_RSP, IREG_TOP_diff_stack_offset, REG_EAX);
    }
    if (block->flags & CODEBLOCK_NO_IMMEDIATES)
-        host_x86_MOV64_REG_IMM(block, REG_R12, (uintptr_t) ram);
+        host_x86_MOV64_REG_IMM(block, REG_R12, ((uintptr_t) ram) + 2147483648ULL);
 }

 void