From 17f7fa343721d9a0766d0c3e20835fa990899db6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Laci=20b=C3=A1?=
 <84271678+laciba96@users.noreply.github.com>
Date: Sat, 16 Oct 2021 19:43:50 +0200
Subject: [PATCH] Merge further fixes to the 32-bit recompiler

Remove mprotect usages in 32-bit x86 dynamic recompiler
---
 src/codegen/codegen_x86.c | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/src/codegen/codegen_x86.c b/src/codegen/codegen_x86.c
index f0b5169d4..b4ba9bc9f 100644
--- a/src/codegen/codegen_x86.c
+++ b/src/codegen/codegen_x86.c
@@ -1173,17 +1173,10 @@ static uint32_t gen_MEM_CHECK_WRITE_L()
 
 void codegen_init()
 {
-#ifdef __unix__
-	void *start;
-	size_t len;
-	long pagesize = sysconf(_SC_PAGESIZE);
-	long pagemask = ~(pagesize - 1);
-#endif
-        
 #ifdef _WIN32
         codeblock = VirtualAlloc(NULL, (BLOCK_SIZE+1) * sizeof(codeblock_t), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
 #elif defined __unix__
-        codeblock = mmap(NULL, (BLOCK_SIZE+1) * sizeof(codeblock_t), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, 0, 0);
+        codeblock = mmap(NULL, (BLOCK_SIZE+1) * sizeof(codeblock_t), PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, 0, 0);
 #else
         codeblock = malloc((BLOCK_SIZE+1) * sizeof(codeblock_t));
 #endif
@@ -1192,16 +1185,6 @@ void codegen_init()
         memset(codeblock, 0, (BLOCK_SIZE+1) * sizeof(codeblock_t));
         memset(codeblock_hash, 0, HASH_SIZE * sizeof(codeblock_t *));
 
-#ifdef __unix__
-	start = (void *)((long)codeblock & pagemask);
-	len = (((BLOCK_SIZE+1) * sizeof(codeblock_t)) + pagesize) & pagemask;
-	if (mprotect(start, len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
-	{
-		perror("mprotect");
-		exit(-1);
-	}
-#endif
-
         block_current = BLOCK_SIZE;
         block_pos = 0;
         mem_abrt_rout = (uint32_t)&codeblock[block_current].data[block_pos];