[crashtracker] Move FFI to its own crate (#551)

Cargo.toml

@@ -5,6 +5,7 @@
 members = [
   "alloc",
   "crashtracker",
+  "crashtracker-ffi",
   "profiling",
   "profiling-ffi",
   "profiling-replayer",

LICENSE-3rdparty.yml

@@ -1,4 +1,4 @@
-root_name: datadog-alloc, datadog-crashtracker, ddcommon, ddtelemetry, datadog-ddsketch, datadog-profiling, datadog-profiling-ffi, data-pipeline-ffi, data-pipeline, datadog-trace-normalization, datadog-trace-protobuf, datadog-trace-utils, ddcommon-ffi, build_common, ddtelemetry-ffi, symbolizer-ffi, datadog-profiling-replayer, tools, datadog-ipc, datadog-ipc-macros, tarpc, tarpc-plugins, spawn_worker, cc_utils, datadog-sidecar, datadog-sidecar-macros, datadog-sidecar-ffi, sidecar_mockgen, datadog-trace-obfuscation, test_spawn_from_lib, datadog-serverless-trace-mini-agent, datadog-trace-mini-agent
+root_name: datadog-alloc, datadog-crashtracker, ddcommon, ddtelemetry, datadog-ddsketch, datadog-crashtracker-ffi, ddcommon-ffi, build_common, datadog-profiling, datadog-profiling-ffi, data-pipeline-ffi, data-pipeline, datadog-trace-normalization, datadog-trace-protobuf, datadog-trace-utils, ddtelemetry-ffi, symbolizer-ffi, datadog-profiling-replayer, tools, datadog-ipc, datadog-ipc-macros, tarpc, tarpc-plugins, spawn_worker, cc_utils, datadog-sidecar, datadog-sidecar-macros, datadog-sidecar-ffi, sidecar_mockgen, datadog-trace-obfuscation, test_spawn_from_lib, datadog-serverless-trace-mini-agent, datadog-trace-mini-agent
 third_party_libraries:
 - package_name: addr2line
   package_version: 0.21.0
@@ -5682,7 +5682,7 @@ third_party_libraries:
   - license: Apache-2.0
     text: "                              Apache License\n                        Version 2.0, January 2004\n                     http://www.apache.org/licenses/\n\nTERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION\n\n1. Definitions.\n\n   \"License\" shall mean the terms and conditions for use, reproduction,\n   and distribution as defined by Sections 1 through 9 of this document.\n\n   \"Licensor\" shall mean the copyright owner or entity authorized by\n   the copyright owner that is granting the License.\n\n   \"Legal Entity\" shall mean the union of the acting entity and all\n   other entities that control, are controlled by, or are under common\n   control with that entity. 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 - package_name: chrono
-  package_version: 0.4.37
+  package_version: 0.4.38
   repository: https://github.com/chronotope/chrono
   license: MIT OR Apache-2.0
   licenses:

build-profiling-ffi.sh

@@ -211,7 +211,7 @@ DESTDIR=$destdir cargo build --package tools --bins
 
 echo "Generating $destdir/include/libdatadog headers..."
 # ADD headers based on selected features.
-HEADERS="$destdir/include/datadog/common.h $destdir/include/datadog/profiling.h $destdir/include/datadog/telemetry.h"
+HEADERS="$destdir/include/datadog/common.h $destdir/include/datadog/profiling.h $destdir/include/datadog/telemetry.h $destdir/include/datadog/crashtracker.h"
 case $ARG_FEATURES in
     *data-pipeline-ffi*)
         HEADERS="$HEADERS $destdir/include/datadog/data-pipeline.h"

crashtracker-ffi/Cargo.toml

@@ -0,0 +1,33 @@
+# Copyright 2021-Present Datadog, Inc. https://www.datadoghq.com/
+# SPDX-License-Identifier: Apache-2.0
+
+[package]
+name = "datadog-crashtracker-ffi"
+edition.workspace = true
+version.workspace = true
+rust-version.workspace = true
+license.workspace = true
+
+[lib]
+bench = false
+
+[features]
+default = ["cbindgen", "collector", "demangler", "receiver"]
+cbindgen = ["build_common/cbindgen"]
+# Enables the in-process collection of crash-info
+collector = []
+demangler = ["dep:symbolic-demangle", "dep:symbolic-common"]
+# Enables the use of this library to receiver crash-info from a suitable collector
+receiver = []
+
+[build-dependencies]
+build_common = { path = "../build-common" }
+
+[dependencies]
+anyhow = "1.0"
+datadog-crashtracker = { path = "../crashtracker" }
+ddcommon = { path = "../ddcommon" }
+ddcommon-ffi = { path = "../ddcommon-ffi", default-features = false }
+hyper = {version = "0.14", default-features = false}
+symbolic-demangle = { version = "12.8.0", default-features = false, features = ["rust", "cpp", "msvc"], optional = true }
+symbolic-common = { version = "12.8.0", default-features = false, optional = true }

crashtracker-ffi/build.rs

@@ -0,0 +1,10 @@
+// Copyright 2021-Present Datadog, Inc. https://www.datadoghq.com/
+// SPDX-License-Identifier: Apache-2.0
+extern crate build_common;
+
+use build_common::generate_and_configure_header;
+
+fn main() {
+    let header_name = "crashtracker.h";
+    generate_and_configure_header(header_name);
+}

crashtracker-ffi/cbindgen.toml

@@ -0,0 +1,51 @@
+# Copyright 2021-Present Datadog, Inc. https://www.datadoghq.com/
+# SPDX-License-Identifier: Apache-2.0
+
+language = "C"
+cpp_compat = true
+tab_width = 2
+header = """// Copyright 2021-Present Datadog, Inc. https://www.datadoghq.com/
+// SPDX-License-Identifier: Apache-2.0
+"""
+include_guard = "DDOG_CRASHTRACKER_H"
+style = "both"
+pragma_once = true
+
+no_includes = true
+sys_includes = ["stdbool.h", "stddef.h", "stdint.h"]
+includes = ["common.h"]
+
+[export]
+prefix = "ddog_crasht_"
+renaming_overrides_prefixing = true
+
+[export.rename]
+"ByteSlice" = "ddog_ByteSlice"
+"CancellationToken" = "ddog_CancellationToken"
+"CharSlice" = "ddog_CharSlice"
+"Endpoint" = "ddog_Endpoint"
+"Error" = "ddog_Error"
+"HttpStatus" = "ddog_HttpStatus"
+"Option_U32" = "ddog_Option_U32"
+"Slice_CChar" = "ddog_Slice_CChar"
+"Slice_I64" = "ddog_Slice_I64"
+"Slice_U8" = "ddog_Slice_U8"
+"Tag" = "ddog_Tag"
+"Timespec" = "ddog_Timespec"
+"Vec_Tag" = "ddog_Vec_Tag"
+"Vec_U8" = "ddog_Vec_U8"
+
+[export.mangle]
+rename_types = "PascalCase"
+
+[enum]
+prefix_with_name = true
+rename_variants = "ScreamingSnakeCase"
+
+[fn]
+must_use = "DDOG_CHECK_RETURN"
+
+[parse]
+parse_deps = true
+include = ["ddcommon", "ddcommon-ffi", "datadog-crashtracker", "ux"]
+

profiling-ffi/src/crashtracker/collector/counters.rs → crashtracker-ffi/src/collector/counters.rs

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use super::datatypes::ProfilingOpTypes;
-use crate::crashtracker::datatypes::*;
+use crate::Result;
 use anyhow::Context;
 
 /// Resets all counters to 0.
@@ -15,9 +15,9 @@ use anyhow::Context;
 /// No safety concerns.
 #[no_mangle]
 #[must_use]
-pub unsafe extern "C" fn ddog_prof_Crashtracker_reset_counters() -> CrashtrackerResult {
+pub unsafe extern "C" fn ddog_crasht_reset_counters() -> Result {
     datadog_crashtracker::reset_counters()
-        .context("ddog_prof_Crashtracker_begin_profiling_op failed")
+        .context("ddog_crasht_reset_counters failed")
         .into()
 }
 
@@ -28,11 +28,9 @@ pub unsafe extern "C" fn ddog_prof_Crashtracker_reset_counters() -> Crashtracker
 ///
 /// # Safety
 /// No safety concerns.
-pub unsafe extern "C" fn ddog_prof_Crashtracker_begin_profiling_op(
-    op: ProfilingOpTypes,
-) -> CrashtrackerResult {
+pub unsafe extern "C" fn ddog_crasht_begin_profiling_op(op: ProfilingOpTypes) -> Result {
     datadog_crashtracker::begin_profiling_op(op)
-        .context("ddog_prof_Crashtracker_begin_profiling_op failed")
+        .context("ddog_crasht_begin_profiling_op failed")
         .into()
 }
 
@@ -43,10 +41,8 @@ pub unsafe extern "C" fn ddog_prof_Crashtracker_begin_profiling_op(
 ///
 /// # Safety
 /// No safety concerns.
-pub unsafe extern "C" fn ddog_prof_Crashtracker_end_profiling_op(
-    op: ProfilingOpTypes,
-) -> CrashtrackerResult {
+pub unsafe extern "C" fn ddog_crasht_end_profiling_op(op: ProfilingOpTypes) -> Result {
     datadog_crashtracker::end_profiling_op(op)
-        .context("ddog_prof_Crashtracker_end_profiling_op failed")
+        .context("ddog_crasht_end_profiling_op failed")
         .into()
 }