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[PULL 05/11] fuzz: add mangled object name to linker script
From: |
Stefan Hajnoczi |
Subject: |
[PULL 05/11] fuzz: add mangled object name to linker script |
Date: |
Fri, 5 Jun 2020 10:47:44 +0100 |
From: Alexander Bulekov <alxndr@bu.edu>
Previously, we relied on "FuzzerTracePC*(.bss*)" to place libfuzzer's
fuzzer::TPC object into our contiguous shared-memory region. This does
not work for some libfuzzer builds, so this addition identifies the
region by its mangled name: *(.bss._ZN6fuzzer3TPCE);
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200512030133.29896-4-alxndr@bu.edu
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
tests/qtest/fuzz/fork_fuzz.ld | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tests/qtest/fuzz/fork_fuzz.ld b/tests/qtest/fuzz/fork_fuzz.ld
index e086bba873..bfb667ed06 100644
--- a/tests/qtest/fuzz/fork_fuzz.ld
+++ b/tests/qtest/fuzz/fork_fuzz.ld
@@ -28,6 +28,11 @@ SECTIONS
/* Internal Libfuzzer TracePC object which contains the ValueProfileMap
*/
FuzzerTracePC*(.bss*);
+ /*
+ * In case the above line fails, explicitly specify the (mangled) name of
+ * the object we care about
+ */
+ *(.bss._ZN6fuzzer3TPCE);
}
.data.fuzz_end : ALIGN(4K)
{
--
2.25.4
- [PULL 00/11] Block patches, Stefan Hajnoczi, 2020/06/05
- [PULL 01/11] io_uring: retry io_uring_submit() if it fails with errno=EINTR, Stefan Hajnoczi, 2020/06/05
- [PULL 02/11] io_uring: use io_uring_cq_ready() to check for ready cqes, Stefan Hajnoczi, 2020/06/05
- [PULL 03/11] fuzz: add datadir for oss-fuzz compatability, Stefan Hajnoczi, 2020/06/05
- [PULL 04/11] fuzz: fix typo in i440fx-qtest-reboot arguments, Stefan Hajnoczi, 2020/06/05
- [PULL 05/11] fuzz: add mangled object name to linker script,
Stefan Hajnoczi <=
- [PULL 06/11] fuzz: run the main-loop in fork-server process, Stefan Hajnoczi, 2020/06/05
- [PULL 08/11] memory: Extract memory_region_msync() from memory_region_writeback(), Stefan Hajnoczi, 2020/06/05
- [PULL 07/11] memory: Rename memory_region_do_writeback -> memory_region_writeback, Stefan Hajnoczi, 2020/06/05
- [PULL 09/11] hw/block: Let the NVMe emulated device be target-agnostic, Stefan Hajnoczi, 2020/06/05
- [PULL 10/11] exec: Rename qemu_ram_writeback() as qemu_ram_msync(), Stefan Hajnoczi, 2020/06/05
- [PULL 11/11] block: Factor out bdrv_run_co(), Stefan Hajnoczi, 2020/06/05
- Re: [PULL 00/11] Block patches, Peter Maydell, 2020/06/05