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711b980654
Currently, libFuzzer will exit with an error message if a non-existent directory is provided for any of the appropriate arguments. For cases where libFuzzer is used in a specialized embedded environment, it would be much easier to have libFuzzer create the directories for the user. This patch accommodates for this scenario by allowing the user to provide the argument `-create_missing_dirs=1` which makes libFuzzer attempt to create the `artifact_prefix`, `exact_artifact_path`, `features_dir` and/or corpus directory if they don't already exist rather than throw an error and exit. Split off from D84808 as requested [here](https://reviews.llvm.org/D84808#2208546). Reviewed By: morehouse Differential Revision: https://reviews.llvm.org/D86733
64 lines
3.7 KiB
Plaintext
64 lines
3.7 KiB
Plaintext
RUN: %cpp_compiler %S/SimpleTest.cpp -o %t-SimpleTest
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RUN: rm -rf %t/SUB1
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RUN: mkdir -p %t/SUB1/SUB2/SUB3
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RUN: echo a > %t/SUB1/a
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RUN: echo b > %t/SUB1/SUB2/b
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RUN: echo c > %t/SUB1/SUB2/SUB3/c
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RUN: %run %t-SimpleTest %t/SUB1 -runs=0 2>&1 | FileCheck %s --check-prefix=SUBDIRS
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SUBDIRS: INFO: seed corpus: files: 3 min: 2b max: 2b total: 6b
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RUN: echo -n zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz > %t/SUB1/f64
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RUN: cat %t/SUB1/f64 %t/SUB1/f64 %t/SUB1/f64 %t/SUB1/f64 > %t/SUB1/f256
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RUN: cat %t/SUB1/f256 %t/SUB1/f256 %t/SUB1/f256 %t/SUB1/f256 > %t/SUB1/f1024
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RUN: cat %t/SUB1/f1024 %t/SUB1/f1024 %t/SUB1/f1024 %t/SUB1/f1024 > %t/SUB1/f4096
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RUN: cat %t/SUB1/f4096 %t/SUB1/f4096 > %t/SUB1/f8192
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RUN: %run %t-SimpleTest %t/SUB1 -runs=0 2>&1 | FileCheck %s --check-prefix=LONG
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LONG: INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 8192 bytes
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RUN: rm -rf %t/SUB1
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# Verify error message prints to console when directory does not exist
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RUN: rm -rf %t.dir && mkdir -p %t.dir
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RUN: not %run %t-SimpleTest -artifact_prefix=%t.dir/NONEXISTENT_DIR/ 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR_RGX
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RUN: not %run %t-SimpleTest -artifact_prefix=%t.dir/NONEXISTENT_DIR/myprefix 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR_RGX
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RUN: not %run %t-SimpleTest -features_dir=%t.dir/NONEXISTENT_DIR/ 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR_RGX
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RUN: not %run %t-SimpleTest %t.dir/NONEXISTENT_DIR 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR_RGX
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RUN: not %run %t-SimpleTest -exact_artifact_path=%t.dir/NONEXISTENT_DIR/myprefix 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR_RGX
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NONEXISTENT_DIR_RGX: ERROR: The required directory "{{.*/NONEXISTENT_DIR/?}}" does not exist
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# Verify error message prints to console when given directory is an empty
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# string
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RUN: not %run %t-SimpleTest "" 2>&1 | FileCheck %s --check-prefix=INVALID_DIR_RGX
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INVALID_DIR_RGX: ERROR: Provided directory path is an empty string
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# Verify error message prints to console when directory creation fails
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# For platforms without functioning chmod (i.e. Windows), use a forbidden
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# character in the directory name.
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RUN: rm -rf %t.dir && mkdir -p %t.dir/access_restricted
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RUN: chmod u-w %t.dir/access_restricted || true
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RUN: not %run %t-SimpleTest -create_missing_dirs=1 %t.dir/access_restricted/?corpus? 2>&1 | FileCheck %s --check-prefix=DIR_CREATION_FAILURE
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DIR_CREATION_FAILURE: ERROR: Failed to create directory "{{.*/access_restricted/\?corpus\?}}"
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# Verify directories and sub-directories are created when -create_missing_dirs=1
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RUN: not %run %t-SimpleTest -create_missing_dirs=1 -artifact_prefix=%t.dir/subdira/./././artifacts/ -features_dir=%t.dir/subdirb/dummy_dir/././../subdirb/features/ %t.dir/subdirc/corpus
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RUN: test -e %t.dir/subdira/artifacts/
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RUN: test -e %t.dir/subdirb/subdirb/features/
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RUN: test -e %t.dir/subdirc/corpus/
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RUN: test -e %t.dir/subdirb/dummy_dir
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# Verify directories and sub-directories are created for exact_artifact_path
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# when -create_missing_dirs=1
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RUN: not %run %t-SimpleTest -create_missing_dirs=1 -exact_artifact_path=%t.dir/subdird/exact_artifacts/abc
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RUN: test -e %t.dir/subdird/exact_artifacts/abc
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# Verify directories and sub-directories are created for artifact_prefix when
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# it's referring to a file name prefix and -create_missing_dirs=1
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RUN: not %run %t-SimpleTest -create_missing_dirs=1 -artifact_prefix=%t.dir/subdire/myprefix
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RUN: test -e %t.dir/subdire/ && not test -e %t.dir/subdire/myprefix
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# Verify directories are created when referring to relative paths and
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# -create_missing_dirs=1
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RUN: cd %t.dir && not %run %t-SimpleTest -create_missing_dirs=1 -artifact_prefix=cwd_artifacts/ -features_dir=cwd_features/subdirtest/ ./cwd_corpus
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RUN: test -e %t.dir/cwd_artifacts/
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RUN: test -e %t.dir/cwd_features/subdirtest/
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RUN: test -e %t.dir/cwd_corpus/
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