SYS-OSS/FRET-qemu
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As a shared object

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This commit is contained in:
Andrea Fioraldi 2021-09-10 17:41:39 +02:00
parent eff38adb3b
commit eff5e7577b
2 changed files with 11 additions and 8 deletions
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12
configure vendored
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@ -449,8 +449,6 @@ slirp_smbd="$default_feature"
malloc_trim="auto" malloc_trim="auto"
gio="$default_feature" gio="$default_feature"
libafl_bridge=""
# parse CC options second # parse CC options second
for opt do for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
@ -1583,12 +1581,10 @@ for opt do
;; ;;
--disable-slirp-smbd) slirp_smbd=no --disable-slirp-smbd) slirp_smbd=no
;; ;;
--with-libafl-bridge=*) --as-shared-lib)
libafl_bridge="$optarg" QEMU_LDFLAGS="$QEMU_LDFLAGS -shared"
if ! (file "$libafl_bridge" | grep "ar archive" > /dev/null); then QEMU_CFLAGS="QEMU_CFLAGS -fPIC -DAS_SHARED_LIB=1"
error_exit "$libafl_bridge is not an ar archive" QEMU_CXXFLAGS="QEMU_CXXFLAGS -fPIC -DAS_SHARED_LIB=1"
fi
QEMU_LDFLAGS="$QEMU_LDFLAGS -Wl,--whole-archive $libafl_bridge -Wl,-no-whole-archive -lm -ldl -pthread"
;; ;;
*) *)
echo "ERROR: unknown option $opt" echo "ERROR: unknown option $opt"

7
linux-user/main.c
View File

@ -654,7 +654,14 @@ int libafl_qemu_run(void)
//// --- End LibAFL code --- //// --- End LibAFL code ---
#ifdef AS_SHARED_LIB
int qemu_user_init(int argc, char **argv, char **envp);
__attribute__((section(".init_array"))) static void *ctr = &qemu_user_init;
int qemu_user_init(int argc, char **argv, char **envp)
#else
int main(int argc, char **argv, char **envp) int main(int argc, char **argv, char **envp)
#endif
{ {
struct target_pt_regs regs1, *regs = &regs1; struct target_pt_regs regs1, *regs = &regs1;
//struct image_info info1, *info = &info1; //struct image_info info1, *info = &info1;