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fuzz: remove fork-fuzzing scaffolding

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Fork-fuzzing provides a few pros, but our implementation prevents us
from using fuzzers other than libFuzzer, and may be causing issues such
as coverage-failure builds on OSS-Fuzz. It is not a great long-term
solution as it depends on internal implementation details of libFuzzer
(which is no longer in active development). Remove it in favor of other
methods of resetting state between inputs.

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
This commit is contained in:
Alexander Bulekov 2023-02-04 23:29:50 -05:00
parent f031c95941
commit d2e6f9272d
5 changed files with 3 additions and 127 deletions
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6
tests/qtest/fuzz/meson.build
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@ -2,7 +2,7 @@ if not get_option('fuzzing')
subdir_done()
endif
specific_fuzz_ss.add(files('fuzz.c', 'fork_fuzz.c', 'qos_fuzz.c',
specific_fuzz_ss.add(files('fuzz.c', 'qos_fuzz.c',
'qtest_wrappers.c'), qos)
# Targets
@ -12,7 +12,7 @@ specific_fuzz_ss.add(when: 'CONFIG_VIRTIO_SCSI', if_true: files('virtio_scsi_fuz
specific_fuzz_ss.add(when: 'CONFIG_VIRTIO_BLK', if_true: files('virtio_blk_fuzz.c'))
specific_fuzz_ss.add(files('generic_fuzz.c'))
fork_fuzz = declare_dependency(
fuzz_ld = declare_dependency(
link_args: fuzz_exe_ldflags +
['-Wl,-wrap,qtest_inb',
'-Wl,-wrap,qtest_inw',
@ -35,4 +35,4 @@ fork_fuzz = declare_dependency(
'-Wl,-wrap,qtest_memset']
)
specific_fuzz_ss.add(fork_fuzz)
specific_fuzz_ss.add(fuzz_ld)