From: "Richard W.M. Jones" <rjones@redhat.com>
To: sbrivio@redhat.com
Cc: passt-dev@passt.top
Subject: [PATCH passt v2 5/7] XXX build: Add extra syscalls needed by AFL instrumentation
Date: Thu, 17 Nov 2022 18:49:36 +0000 [thread overview]
Message-ID: <20221117184938.2270462-6-rjones@redhat.com> (raw)
In-Reply-To: <20221117184938.2270462-1-rjones@redhat.com>
This is a hack. Ideally there'd be a way to build a "non-production"
build of passt which would turn off all the encapsulation features.
They are not relevant for fuzzing and simply add overhead.
---
Makefile | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Makefile b/Makefile
index ced7af2..ee496fe 100644
--- a/Makefile
+++ b/Makefile
@@ -119,6 +119,19 @@ all: $(BIN) $(MANPAGES) docs
static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
static: clean all
+# XXX Hack for AFL instrumentation
+EXTRA_SYSCALLS += \
+ clone \
+ getpid \
+ gettid \
+ madvise \
+ mmap \
+ mprotect \
+ prctl \
+ rt_sigprocmask \
+ sched_yield \
+ sigaltstack
+
seccomp.h: seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
@ EXTRA_SYSCALLS="$(EXTRA_SYSCALLS)" ./seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
--
@@ -119,6 +119,19 @@ all: $(BIN) $(MANPAGES) docs
static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
static: clean all
+# XXX Hack for AFL instrumentation
+EXTRA_SYSCALLS += \
+ clone \
+ getpid \
+ gettid \
+ madvise \
+ mmap \
+ mprotect \
+ prctl \
+ rt_sigprocmask \
+ sched_yield \
+ sigaltstack
+
seccomp.h: seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
@ EXTRA_SYSCALLS="$(EXTRA_SYSCALLS)" ./seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
--
2.37.0.rc2
next prev parent reply other threads:[~2022-11-17 18:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 18:49 [PATCH passt v2 0/7] Add fuzzing Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 1/7] build: Force-create pasta symlink Richard W.M. Jones
2022-11-18 1:30 ` David Gibson
2022-11-18 7:56 ` Stefano Brivio
2022-11-17 18:49 ` [PATCH passt v2 2/7] build: Remove *~ files with make clean Richard W.M. Jones
2022-11-18 1:31 ` David Gibson
2022-11-17 18:49 ` [PATCH passt v2 3/7] passt, tap: Add --fd option Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 4/7] passt, tap: Process data on the socket before HUP/ERR events Richard W.M. Jones
2022-11-18 1:32 ` David Gibson
2022-11-17 18:49 ` Richard W.M. Jones [this message]
2022-11-17 18:49 ` [PATCH passt v2 6/7] XXX passt: Kill seccomp and other isolation mechanisms Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 7/7] Import fuzzing wrapper from libnbd Richard W.M. Jones
2022-11-17 19:06 ` [PATCH passt v2 0/7] Add fuzzing Richard W.M. Jones
2022-11-18 10:12 ` Richard W.M. Jones
2022-11-25 9:23 ` Stefano Brivio
2022-11-25 10:11 ` Richard W.M. Jones
2022-11-29 13:34 ` Stefano Brivio
2022-11-29 13:44 ` Richard W.M. Jones
2022-11-30 1:11 ` David Gibson
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