rename sed_cmds to patch-llvm.sh (#745)

Make the name and location of the script that patches LLVM to include
our llvm frontend more meaningful.

Signed-off-by: David Korczynski <[email protected]>

Signed-off-by: David Korczynski <[email protected]>

Author: DavidKorczynski

build_all.sh

@@ -54,7 +54,7 @@ else
   git checkout release/14.x
 
   echo "Applying diffs to insert Fuzz Introspector plugin in the LLVM pipeline"
-  $BASE/sed_cmds.sh
+  $BASE/frontends/llvm/patch-llvm.sh
 
   # Now copy over the LLVM code we have
   # This includes our inspector pass and the files included.

doc/Architecture.md

@@ -78,7 +78,7 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level,
   MPM.addPass(FuzzIntrospectorPass());
 ```
 i.e. we only add `MPM.addPass(FuzzIntrospectorPass());` to the LTO pass builder pipeline. All
-of the LLVM patches are given in [sed_cmds.sh](/sed_cmds.sh)
+of the LLVM patches are given in [patch-llvm.sh](/frontends/llvm/patch-llvm.sh)
 
 ### Output of LLVM plugin
 The output of the LLVM pass is composed of two files for each fuzzer executable

doc/LocalBuild.md

@@ -67,7 +67,7 @@ git clone https://github.com/llvm/llvm-project/
 cd llvm-project/
 
 # Patch Clang to run fuzz introspector
-../../sed_cmds.sh
+../../frontends/llvm/patch-llvm.sh
 cp -rf ../../frontends/llvm/include/llvm/Transforms/FuzzIntrospector/ ./llvm/include/llvm/Transforms/FuzzIntrospector
 cp -rf ../../frontends/llvm/lib/Transforms/FuzzIntrospector ./llvm/lib/Transforms/FuzzIntrospector
 cd ../

sed_cmds.sh renamed to frontends/llvm/patch-llvm.sh

@@ -35,7 +35,6 @@ rm -rf ./oss-fuzz/infra/base-images/base-clang/fuzz-introspector/
 mkdir ./oss-fuzz/infra/base-images/base-clang/fuzz-introspector/
 
 cp -rf ../frontends ./oss-fuzz/infra/base-images/base-clang/fuzz-introspector/frontends
-cp ../sed_cmds.sh ./oss-fuzz/infra/base-images/base-clang/fuzz-introspector/sed_cmds.sh
 cp -rf ../src ./oss-fuzz/infra/base-images/base-clang/fuzz-introspector/src
 cp -rf ../src ./oss-fuzz/infra/base-images/base-builder/src
 

oss_fuzz_integration/build_all_custom_images.sh

@@ -1,8 +1,8 @@
 diff --git a/infra/base-images/base-builder/Dockerfile b/infra/base-images/base-builder/Dockerfile
-index 12c08499..9808589b 100644
+index d77a9486..7e88da2b 100644
 --- a/infra/base-images/base-builder/Dockerfile
 +++ b/infra/base-images/base-builder/Dockerfile
-@@ -162,5 +162,9 @@ COPY cargo compile compile_afl compile_libfuzzer compile_honggfuzz \
+@@ -161,5 +161,9 @@ COPY cargo compile compile_afl compile_libfuzzer compile_honggfuzz \
  COPY llvmsymbol.diff $SRC
  COPY detect_repo.py /opt/cifuzz/
  COPY bazel.bazelrc /root/.bazelrc
@@ -13,7 +13,7 @@ index 12c08499..9808589b 100644
 
  CMD ["compile"]
 diff --git a/infra/base-images/base-clang/Dockerfile b/infra/base-images/base-clang/Dockerfile
-index aa4eca97..1a3a122f 100644
+index 6cc06bee..1e4a2496 100644
 --- a/infra/base-images/base-clang/Dockerfile
 +++ b/infra/base-images/base-clang/Dockerfile
 @@ -45,6 +45,8 @@ RUN apt-get update && apt-get install -y git && \
@@ -25,6 +25,19 @@ index aa4eca97..1a3a122f 100644
  RUN /root/checkout_build_install_llvm.sh
  RUN rm /root/checkout_build_install_llvm.sh
 
+diff --git a/infra/base-images/base-clang/checkout_build_install_llvm.sh b/infra/base-images/base-clang/checkout_build_install_llvm.sh
+index 2b403cfd..65f0ea55 100755
+--- a/infra/base-images/base-clang/checkout_build_install_llvm.sh
++++ b/infra/base-images/base-clang/checkout_build_install_llvm.sh
+@@ -129,7 +129,7 @@ cp -rf /fuzz-introspector/frontends/llvm/lib/Transforms/FuzzIntrospector ./llvm/
+ 
+ # LLVM currently does not support dynamically loading LTO passes. Thus, we
+ # hardcode it into Clang instead. Ref: https://reviews.llvm.org/D77704
+-/fuzz-introspector/sed_cmds.sh
++/fuzz-introspector/frontends/llvm/patch-llvm.sh
+ cd $OLD_WORKING_DIR
+ 
+ mkdir -p $WORK/llvm-stage2 $WORK/llvm-stage1
 diff --git a/infra/base-images/base-runner/Dockerfile b/infra/base-images/base-runner/Dockerfile
 index bc034e19..929e3499 100755
 --- a/infra/base-images/base-runner/Dockerfile