[llvm] 5528784 - [ORC][examples] Fix off-by-one error when handling null terminators.

[Lang Hames via llvm-commits]

Author: Lang Hames
Date: 2022-05-20T19:33:49-07:00
New Revision: 55287840fe3f0d175ca649f0b665ccc0c184eb5d

URL: https://github.com/llvm/llvm-project/commit/55287840fe3f0d175ca649f0b665ccc0c184eb5d
DIFF: https://github.com/llvm/llvm-project/commit/55287840fe3f0d175ca649f0b665ccc0c184eb5d.diff

LOG: [ORC][examples] Fix off-by-one error when handling null terminators.

LLVMCreateMemoryBufferWithMemoryRange checks for a null terminator after the
given range, so we need to pass the length of the module string (excluding the
null terminator).

Added: 
    

Modified: 
    llvm/examples/OrcV2Examples/OrcV2CBindingsLazy/OrcV2CBindingsLazy.c

Removed: 
    


################################################################################
diff  --git a/llvm/examples/OrcV2Examples/OrcV2CBindingsLazy/OrcV2CBindingsLazy.c b/llvm/examples/OrcV2Examples/OrcV2CBindingsLazy/OrcV2CBindingsLazy.c
index 0f4f979127e85..fd90671bbb344 100644
--- a/llvm/examples/OrcV2Examples/OrcV2CBindingsLazy/OrcV2CBindingsLazy.c
+++ b/llvm/examples/OrcV2Examples/OrcV2CBindingsLazy/OrcV2CBindingsLazy.c
@@ -127,8 +127,8 @@ int main(int argc, char *argv[]) {
     LLVMErrorRef Err;
 
     LLVMOrcThreadSafeModuleRef FooTSM;
-    if ((Err =
-             parseExampleModule(FooMod, sizeof(FooMod), "foo-mod", &FooTSM))) {
+    if ((Err = parseExampleModule(FooMod, sizeof(FooMod) - 1, "foo-mod",
+                                  &FooTSM))) {
       MainResult = handleError(Err);
       goto jit_cleanup;
     }
@@ -142,8 +142,8 @@ int main(int argc, char *argv[]) {
     }
 
     LLVMOrcThreadSafeModuleRef BarTSM;
-    if ((Err =
-             parseExampleModule(BarMod, sizeof(BarMod), "bar-mod", &BarTSM))) {
+    if ((Err = parseExampleModule(BarMod, sizeof(BarMod) - 1, "bar-mod",
+                                  &BarTSM))) {
       MainResult = handleError(Err);
       goto jit_cleanup;
     }
@@ -155,7 +155,7 @@ int main(int argc, char *argv[]) {
     }
 
     LLVMOrcThreadSafeModuleRef MainTSM;
-    if ((Err = parseExampleModule(MainMod, sizeof(MainMod), "main-mod",
+    if ((Err = parseExampleModule(MainMod, sizeof(MainMod) - 1, "main-mod",
                                   &MainTSM))) {
       MainResult = handleError(Err);
       goto jit_cleanup;