Initial QSfera import
This commit is contained in:
+100
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//go:build enable_antithesis_sdk
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package internal
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import (
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"encoding/json"
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"log"
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"math/rand"
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"os"
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)
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func Json_data(v any) error {
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if data, err := json.Marshal(v); err != nil {
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return err
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} else {
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handler.output(string(data))
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return nil
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}
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}
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func Get_random() uint64 {
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return handler.random()
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}
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func Notify(edge uint64) bool {
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return handler.notify(edge)
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}
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func InitCoverage(num_edges uint64, symbols string) uint64 {
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return handler.init_coverage(num_edges, symbols)
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}
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type libHandler interface {
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output(message string)
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random() uint64
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notify(edge uint64) bool
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init_coverage(num_edges uint64, symbols string) uint64
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}
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const (
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errorLogLinePrefix = "[* antithesis-sdk-go *]"
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)
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var handler libHandler
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type localHandler struct {
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outputFile *os.File // can be nil
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}
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func (h *localHandler) output(message string) {
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msg_len := len(message)
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if msg_len == 0 {
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return
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}
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if h.outputFile != nil {
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h.outputFile.WriteString(message + "\n")
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}
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}
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func (h *localHandler) random() uint64 {
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return rand.Uint64()
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}
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func (h *localHandler) notify(edge uint64) bool {
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return false
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}
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func (h *localHandler) init_coverage(num_edges uint64, symbols string) uint64 {
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return 0
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}
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func init() {
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handler = init_in_antithesis()
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if handler == nil {
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// Otherwise fallback to the local handler.
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handler = openLocalHandler()
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}
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}
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// If `localOutputEnvVar` is set to a non-empty path, attempt to open that path and truncate the file
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// to serve as the log file of the local handler.
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// Otherwise, we don't have a log file, and logging is a no-op in the local handler.
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func openLocalHandler() *localHandler {
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path, is_set := os.LookupEnv(localOutputEnvVar)
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if !is_set || len(path) == 0 {
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return &localHandler{nil}
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}
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// Open the file R/W (create if needed and possible)
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file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0644)
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if err != nil {
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log.Printf("%s Failed to open path %s: %v", errorLogLinePrefix, path, err)
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file = nil
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} else if err = file.Truncate(0); err != nil {
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log.Printf("%s Failed to truncate file at %s: %v", errorLogLinePrefix, path, err)
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file = nil
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}
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return &localHandler{file}
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}
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+12
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package internal
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// --------------------------------------------------------------------------------
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// Versions
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// --------------------------------------------------------------------------------
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const SDK_Version = "0.7.0"
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const Protocol_Version = "1.1.0"
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// --------------------------------------------------------------------------------
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// Environment Vars
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// --------------------------------------------------------------------------------
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const localOutputEnvVar = "ANTITHESIS_SDK_LOCAL_OUTPUT"
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Generated
Vendored
+160
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//go:build enable_antithesis_sdk && linux && amd64 && cgo
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package internal
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import (
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"fmt"
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"unsafe"
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"os"
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)
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// --------------------------------------------------------------------------------
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// To build and run an executable with this package
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//
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// CC=clang CGO_ENABLED=1 go run ./main.go
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// --------------------------------------------------------------------------------
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// \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
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//
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// The commented lines below, and the `import "C"` line which must directly follow
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// the commented lines are used by CGO. They are load-bearing, and should not be
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// changed without first understanding how CGO uses them.
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//
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// \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
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// #cgo LDFLAGS: -ldl
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//
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// #include <dlfcn.h>
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// #include <stdbool.h>
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// #include <stdint.h>
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// #include <stdlib.h>
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//
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// typedef void (*go_fuzz_json_data_fn)(const char *data, size_t size);
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// void
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// go_fuzz_json_data(void *f, const char *data, size_t size) {
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// ((go_fuzz_json_data_fn)f)(data, size);
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// }
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//
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// typedef void (*go_fuzz_flush_fn)(void);
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// void
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// go_fuzz_flush(void *f) {
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// ((go_fuzz_flush_fn)f)();
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// }
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//
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// typedef uint64_t (*go_fuzz_get_random_fn)(void);
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// uint64_t
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// go_fuzz_get_random(void *f) {
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// return ((go_fuzz_get_random_fn)f)();
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// }
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//
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// typedef bool (*go_notify_coverage_fn)(size_t);
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// int
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// go_notify_coverage(void *f, size_t edges) {
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// bool b = ((go_notify_coverage_fn)f)(edges);
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// return b ? 1 : 0;
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// }
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//
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// typedef uint64_t (*go_init_coverage_fn)(size_t num_edges, const char *symbols);
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// uint64_t
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// go_init_coverage(void *f, size_t num_edges, const char *symbols) {
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// return ((go_init_coverage_fn)f)(num_edges, symbols);
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// }
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//
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import "C"
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const (
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defaultNativeLibraryPath = "/usr/lib/libvoidstar.so"
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)
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type voidstarHandler struct {
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fuzzJsonData unsafe.Pointer
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fuzzFlush unsafe.Pointer
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fuzzGetRandom unsafe.Pointer
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initCoverage unsafe.Pointer
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notifyCoverage unsafe.Pointer
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}
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func (h *voidstarHandler) output(message string) {
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msg_len := len(message)
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if msg_len == 0 {
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return
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}
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cstrMessage := C.CString(message)
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defer C.free(unsafe.Pointer(cstrMessage))
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C.go_fuzz_json_data(h.fuzzJsonData, cstrMessage, C.ulong(msg_len))
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C.go_fuzz_flush(h.fuzzFlush)
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}
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func (h *voidstarHandler) random() uint64 {
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return uint64(C.go_fuzz_get_random(h.fuzzGetRandom))
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}
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func (h *voidstarHandler) init_coverage(num_edge uint64, symbols string) uint64 {
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cstrSymbols := C.CString(symbols)
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defer C.free(unsafe.Pointer(cstrSymbols))
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return uint64(C.go_init_coverage(h.initCoverage, C.ulong(num_edge), cstrSymbols))
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}
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func (h *voidstarHandler) notify(edge uint64) bool {
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ival := int(C.go_notify_coverage(h.notifyCoverage, C.ulong(edge)))
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return ival == 1
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}
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// Attempt to load libvoidstar and some symbols from `path`
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func openSharedLib(path string) (*voidstarHandler, error) {
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cstrPath := C.CString(path)
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defer C.free(unsafe.Pointer(cstrPath))
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dlError := func(message string) error {
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return fmt.Errorf("%s: (%s)", message, C.GoString(C.dlerror()))
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}
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sharedLib := C.dlopen(cstrPath, C.int(C.RTLD_NOW))
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if sharedLib == nil {
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return nil, dlError("Can not load the Antithesis native library")
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}
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loadFunc := func(name string) (symbol unsafe.Pointer, err error) {
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cstrName := C.CString(name)
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defer C.free(unsafe.Pointer(cstrName))
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if symbol = C.dlsym(sharedLib, cstrName); symbol == nil {
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err = dlError(fmt.Sprintf("Can not access symbol %s", name))
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}
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return
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}
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fuzzJsonData, err := loadFunc("fuzz_json_data")
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if err != nil {
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return nil, err
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}
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fuzzFlush, err := loadFunc("fuzz_flush")
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if err != nil {
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return nil, err
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}
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fuzzGetRandom, err := loadFunc("fuzz_get_random")
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if err != nil {
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return nil, err
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}
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notifyCoverage, err := loadFunc("notify_coverage")
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if err != nil {
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return nil, err
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}
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initCoverage, err := loadFunc("init_coverage_module")
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if err != nil {
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return nil, err
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}
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return &voidstarHandler{fuzzJsonData, fuzzFlush, fuzzGetRandom, initCoverage, notifyCoverage}, nil
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}
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// If we have a file at `defaultNativeLibraryPath`, we load the shared library
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// (and panic on any error encountered during load).
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func init_in_antithesis() libHandler {
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if _, err := os.Stat(defaultNativeLibraryPath); err == nil {
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handler, err := openSharedLib(defaultNativeLibraryPath)
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if err != nil {
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panic(err)
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}
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return handler
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}
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return nil
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}
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Generated
Vendored
+7
@@ -0,0 +1,7 @@
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//go:build enable_antithesis_sdk && (!linux || !amd64 || !cgo)
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package internal
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func init_in_antithesis() libHandler {
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return nil
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}
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