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* xdiff: update to xdiff from git 2.40.1ethomson/xdiffEdward Thomson2023-05-1111-129/+131
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* xdiff: move xdiff to 'deps'Edward Thomson2023-03-0317-0/+4399
| | | | | | | xdiff is a dependency (from git core) and more properly belongs in the 'deps' directory. Move it there, and add a stub for cmake to resolve xdiff from the system location in the future. (At present, bundled xdiff remains hardcoded.)
* Add OpenSSL deprection warningEdward Thomson2023-02-021-0/+2
| | | | | Add `OPENSSL_API_COMPAT=0x10100000L` since we use the now-deprecated low-level hash functions.
* zlib: Silence some warnings from Visual Studio C.Mark Adler2022-07-122-5/+5
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* zlib: slide_hash: add MSAN annotation to suppress known read from ↵Andrzej Hunt2022-07-121-0/+5
| | | | | | | | | | | | | | | | | | | | | uninitialised memory slide_hash knowingly reads (possibly) uninitialised memory, see comment lower down about prev[n] potentially being garbage. In this case, the result is never used - so we don't care about MSAN complaining about this read. By adding the no_sanitize("memory") attribute, clients of zlib won't see this (unnecessary) error when building and running with MemorySanitizer. An alternative approach is for clients to build zlib with -fsanitize-ignorelist=... where the ignorelist contains something like 'fun:slide_hash'. But that's more work and needs to be redone for any and all CI systems running a given project with MSAN. Adding this annotation to zlib's sources is overall more convenient - but also won't affect non-MSAN builds. This specific issue was found while running git's test suite, but has also been reported by other clients, see e.g. #518.
* zlib: declare prototypes for new functionsEdward Thomson2022-07-122-1/+10
| | | | | The `crc32_combine_gen64` missed a prototype in our define path. Add one.
* zlib: updated bundled zlib to v1.2.12Edward Thomson2022-07-1215-959/+10735
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* ntlmclient: LibreSSL 3.5 removed HMAC_CTX_cleanupCharlie Li2022-07-031-1/+3
| | | | | | https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.5.0-relnotes.txt Modify guard to declare dummy function.
* ntmlclient: don't declare dummy HMAC_CTX_cleanup when building with libresslPeter Pettersson2021-12-311-1/+1
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* Merge pull request #6094 from visualgitio/commit-graph-long-longEdward Thomson2021-12-231-4/+4
|\ | | | | Fix a long long that crept past
| * Fix long long constants in macro in ntlmclientCalvin Buckley2021-10-181-4/+4
| | | | | | | | This should be propagated to upstream.
* | cmake: use PROJECT_SOURCE_DIR of CMAKE_SOURCE_DIRJosh Junon2021-12-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also applies to *_BINARY_DIR. This effectively reverts 84083dcc8bd41332ccac9d7b537f3e254d79011c, which broke all users of libgit2 that use it as a CMake subdirectory (via `add_subdirectory()`). This is because CMAKE_SOURCE_DIR refers to the root-most CMake directory, which in the case of `add_subdirectory()` is a parent project to libgit2 and thus the paths don't make any sense to the configuration files. Corollary, CMAKE_SOURCE_DIR only makes sense if the CMake project is always the root project - which can rarely be guaranteed. In all honesty, CMake should deprecate and eventually remove CMAKE_SOURCE_DIR and CMAKE_BINARY_DIR. It's been the source of headaches and confusion for years, they're rarely useful over CMAKE_CURRENT_(SOURCE|BINARY)_DIR or PROJECT_(SOURCE|BINARY)_DIR, and they cause a lot of confusing configuration and source code layouts to boot. Any time they are used, they break `add_subdirectory()` almost 100% of the time, cause confusing error messages, and hide subtle bugs.
* | cmake: use CMAKE_SOURCE_DIR and CMAKE_BINARY_DIRethomson/cleanupEdward Thomson2021-11-221-5/+3
| | | | | | | | | | | | Instead of using the project-specific `libgit2_SOURCE_DIR` and `libgit2_BINARY_DIR` variables, use `CMAKE_SOURCE_DIR` and `CMAKE_BINARY_DIR`.
* | ntmlclient: make enum C90 compliant by removing trailing commaPeter Pettersson2021-11-152-6/+6
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* | cmake: stylistic refactoringEdward Thomson2021-10-184-137/+137
|/ | | | | Ensure that we always use lowercase function names, and that we do not have spaces preceding open parentheses, for consistency.
* ntlmclient: update to ntlmclient 0.9.1Edward Thomson2021-08-2416-345/+622
| | | | The ntlmclient dependency can now dynamically load OpenSSL.
* zlib: Add support for building with Chromium's zlib implementationlhchavez2020-12-231-0/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change builds libgit2 using Chromium's zlib implementation by invoking cmake with `-DUSE_BUNDLED_ZLIB=ON -DUSE_CHROMIUM_ZLIB=ON`, which is ~10% faster than the bundled zlib for the core::zstream suite. This version of zlib has some optimizations: a) Decompression (Intel+ARM): inflate_fast, adler32, crc32, etc. b) Compression (Intel): fill_window, longest_match, hash function, etc. Due to the introduction of SIMD optimizations, and to get the maximum performance out of this fork of zlib, this requires an x86_64 processor with SSE4.2 and CLMUL (anything Westmere or later, ~2010). The Chromium zlib implementation also supports ARM with NEON, but it has not been enabled in this patch. Performance =========== TL;DR: Running just `./libgit2_clar -score::zstream` 100 times in a loop took 0:56.30 before and 0:50.67 after (~10% reduction!). The bundled and system zlib implementations on an Ubuntu Focal system perform relatively similar (the bundled one is marginally better due to the compiler being able to inline some functions), so only the bundled and Chromium zlibs were compared. For a more balanced comparison (to ensure that nothing regressed overall), `libgit2_clar` under `perf` was also run, and the zlib-related functions were compared. Bundled ------- ```shell cmake \ -DUSE_BUNDLED_ZLIB=ON \ -DUSE_CHROMIUM_ZLIB=OFF \ -DCMAKE_BUILD_TYPE="RelWithDebInfo" \ -DCMAKE_C_FLAGS="-fPIC -fno-omit-frame-pointer" \ -GNinja \ .. ninja perf record --call-graph=dwarf ./libgit2_clar perf report --children ``` ``` Samples: 87K of event 'cycles', Event count (approx.): 75923450603 Children Self Command Shared Objec Symbol + 4.14% 0.01% libgit2_clar libgit2_clar [.] git_zstream_get_output_chunk + 2.91% 0.00% libgit2_clar libgit2_clar [.] git_zstream_get_output + 0.69% 0.00% libgit2_clar libgit2_clar [.] git_zstream_get_output (inlined) 0.17% 0.00% libgit2_clar libgit2_clar [.] git_zstream_init 0.02% 0.00% libgit2_clar libgit2_clar [.] git_zstream_reset 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_eos 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_done 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_free (inlined) Samples: 87K of event 'cycles', Event count (approx.): 75923450603 Children Self Command Shared Objec Symbol + 3.12% 0.01% libgit2_clar libgit2_clar [.] deflate + 2.65% 1.48% libgit2_clar libgit2_clar [.] deflate_slow + 1.60% 0.55% libgit2_clar libgit2_clar [.] inflate + 0.53% 0.00% libgit2_clar libgit2_clar [.] write_deflate 0.49% 0.36% libgit2_clar libgit2_clar [.] inflate_fast 0.46% 0.02% libgit2_clar libgit2_clar [.] deflate_fast 0.19% 0.19% libgit2_clar libgit2_clar [.] inflate_table 0.16% 0.01% libgit2_clar libgit2_clar [.] inflateInit_ 0.15% 0.00% libgit2_clar libgit2_clar [.] inflateInit2_ (inlined) 0.10% 0.00% libgit2_clar libgit2_clar [.] deflateInit_ 0.10% 0.00% libgit2_clar libgit2_clar [.] deflateInit2_ 0.03% 0.00% libgit2_clar libgit2_clar [.] deflateReset (inlined) 0.02% 0.00% libgit2_clar libgit2_clar [.] deflateReset 0.02% 0.00% libgit2_clar libgit2_clar [.] inflateEnd 0.02% 0.00% libgit2_clar libgit2_clar [.] deflateEnd 0.01% 0.00% libgit2_clar libgit2_clar [.] deflateResetKeep 0.01% 0.01% libgit2_clar libgit2_clar [.] inflateReset2 0.01% 0.00% libgit2_clar libgit2_clar [.] deflateReset (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateReset (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] deflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateResetKeep (inlined) ``` Chromium -------- ```shell cmake \ -DUSE_BUNDLED_ZLIB=ON \ -DUSE_CHROMIUM_ZLIB=ON \ -DCMAKE_BUILD_TYPE="RelWithDebInfo" \ -DCMAKE_C_FLAGS="-fPIC -fno-omit-frame-pointer" \ -GNinja \ .. ninja perf record --call-graph=dwarf ./libgit2_clar perf report --children ``` ``` Samples: 97K of event 'cycles', Event count (approx.): 80862210917 Children Self Command Shared Objec Symbol + 3.31% 0.00% libgit2_clar libgit2_clar [.] git_zstream_get_output_chunk + 2.27% 0.01% libgit2_clar libgit2_clar [.] git_zstream_get_output + 0.55% 0.00% libgit2_clar libgit2_clar [.] git_zstream_get_output (inlined) 0.18% 0.00% libgit2_clar libgit2_clar [.] git_zstream_init 0.02% 0.00% libgit2_clar libgit2_clar [.] git_zstream_reset 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_free (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_done 0.00% 0.00% libgit2_clar libgit2_clar [.] git_zstream_free Samples: 97K of event 'cycles', Event count (approx.): 80862210917 Children Self Command Shared Objec Symbol + 2.55% 0.01% libgit2_clar libgit2_clar [.] deflate + 2.25% 1.41% libgit2_clar libgit2_clar [.] deflate_slow + 1.10% 0.52% libgit2_clar libgit2_clar [.] inflate 0.36% 0.00% libgit2_clar libgit2_clar [.] write_deflate 0.30% 0.03% libgit2_clar libgit2_clar [.] deflate_fast 0.28% 0.15% libgit2_clar libgit2_clar [.] inflate_fast_chunk_ 0.19% 0.19% libgit2_clar libgit2_clar [.] inflate_table 0.17% 0.01% libgit2_clar libgit2_clar [.] inflateInit_ 0.16% 0.00% libgit2_clar libgit2_clar [.] inflateInit2_ (inlined) 0.15% 0.00% libgit2_clar libgit2_clar [.] deflateInit_ 0.15% 0.00% libgit2_clar libgit2_clar [.] deflateInit2_ 0.11% 0.01% libgit2_clar libgit2_clar [.] adler32_z 0.09% 0.09% libgit2_clar libgit2_clar [.] adler32_simd_ 0.05% 0.00% libgit2_clar libgit2_clar [.] deflateReset (inlined) 0.05% 0.00% libgit2_clar libgit2_clar [.] deflate_read_buf 0.03% 0.00% libgit2_clar libgit2_clar [.] inflateEnd 0.02% 0.00% libgit2_clar libgit2_clar [.] deflateReset 0.01% 0.00% libgit2_clar libgit2_clar [.] deflateEnd 0.01% 0.01% libgit2_clar libgit2_clar [.] inflateReset2 0.01% 0.00% libgit2_clar libgit2_clar [.] inflateReset (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] adler32 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateResetKeep (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] deflateResetKeep 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] inflateStateCheck (inlined) 0.00% 0.00% libgit2_clar libgit2_clar [.] deflateStateCheck (inlined) ```
* Include `${MBEDTLS_INCLUDE_DIR}` when compiling `crypt_mbedtls.c`Elliot Saba2020-10-201-0/+1
| | | | | | Without this, mbedTLS installs in non-default install locations that are otherwise found by the `FindmbedTLS.cmake` module are not found by the C preprocessor at compile time.
* ntlm: update ntlm dependency for htonllethomson/ntlm_htonllEdward Thomson2020-10-115-42/+23
| | | | | Update ntlm to include an htonll that is not dependent on system libraries.
* pcre: upgrade to 8.44ethomson/pcreEdward Thomson2020-10-045-25/+26
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* pcre: upgrade to 8.43Edward Thomson2020-10-044-12/+22
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* pcre: include the licenseEdward Thomson2020-10-041-0/+93
| | | | | We included their COPYING file, which was _not_ in fact their license. Add the LICENSE file as well.
* deps: ntlmclient: #error out on unknown platformsFrançois Revol2020-08-211-1/+5
| | | | | We explicitly pass win32 & macOS, although some old version might not have it.
* deps: ntlmclient: fix htonll for HaikuFrançois Revol2020-08-211-0/+3
| | | | Use B_HOST_TO_BENDIAN_INT64 for that.
* Merge pull request #5567 from lhchavez/msanEdward Thomson2020-07-091-0/+1
|\ | | | | Make the tests pass cleanly with MemorySanitizer
| * Make the tests pass cleanly with MemorySanitizerlhchavez2020-06-301-0/+1
| | | | | | | | | | | | | | | | | | This change: * Initializes a few variables that were being read before being initialized. * Includes https://github.com/madler/zlib/pull/393. As such, it only works reliably with `-DUSE_BUNDLED_ZLIB=ON`.
* | Make NTLMClient Memory and UndefinedBehavior Sanitizer-cleanlhchavez2020-06-301-11/+8
|/ | | | | | | | | | | This change makes the code pass the libgit2 tests cleanly when MSan/UBSan are enabled. Notably: * Changes malloc/memset combos into calloc for easier auditing. * Makes `write_buf` return early if the buffer length is empty to avoid arithmetic with NULL pointers (which UBSan does not like). * Initializes a few arrays that were sometimes being read before being written to.
* cmake: Sort source files for reproducible buildspks/cmake-sort-reproducible-buildsPatrick Steinhardt2020-05-153-8/+11
| | | | | | | | | | | We currently use `FILE(GLOB ...)` in most places to find source and header files. This is problematic in that the order of files returned depends on the operating system's directory iteration order and may thus not be deterministic. As a result, we link object files in unspecified order, which may cause the linker to emit different code across runs. Fix this issue by sorting all code used as input to the libgit2 library to improve the reliability of reproducible builds.
* deps: ntlmclient: use htobe64 on NetBSD toonia2020-04-051-1/+1
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* cmake: streamline backend detectionPatrick Steinhardt2020-04-011-5/+5
| | | | | | | We're currently doing unnecessary work to auto-detect backends even if the functionality is disabled altogether. Let's fix this by removing the extraneous FOO_BACKEND variables, instead letting auto-detection modify the variable itself.
* ntlmclient: silence deprecation warnings for CommonCrypto backendPatrick Steinhardt2020-03-131-0/+2
| | | | | The `CC_MD4()` function has been deprecated in macOS 10.15. Silence this warning for now until we implement a proper fix.
* deps: ntlmclient: fix htonll on big endian FreeBSDPatrick Steinhardt2020-02-261-1/+1
| | | | | | | | | | | | In commit 3828ea67b (deps: ntlmclient: fix missing htonll symbols on FreeBSD and SunOS, 2020-02-21), we've fixed compilation on BSDs due to missing `htonll` wrappers. While we are now using `htobe64` for both Linux and OpenBSD, we decided to use `bswap64` on FreeBSD. While correct on little endian systems, where we will swap from little- to big-endian, we will also do the swap on big endian systems. As a result, we do not use network byte order on such systems. Fix the issue by using htobe64, as well.
* deps: ntlmclient: fix missing htonll symbols on FreeBSD and SunOSPatrick Steinhardt2020-02-241-0/+22
| | | | | | | | | The ntlmclient dependency defines htonll on Linux-based systems, only. As a result, non-Linux systems will run into compiler and/or linker errors due to undefined symbols. Fix this issue for FreeBSD, OpenBSD and SunOS/OpenSolaris by including the proper headers and defining the symbol accordingly.
* ntlm: prevent (spurious) compiler warningsJosh Bleecher Snyder2020-01-091-1/+3
| | | | | | | Pull in commit https://github.com/ethomson/ntlmclient/commit/e7b2583e1bc28c33c43854e7c318e859b4e83bef to fix #5353.
* ntlm: fix failure to find openssl headersJason Haslam2019-08-291-0/+1
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* zlib: remove unused functionsEdward Thomson2019-06-242-14/+0
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* http_parser: cast pointer arithmetic safelyEdward Thomson2019-06-241-5/+11
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* deps: ntlmclient: disable implicit fallthrough warningsPatrick Steinhardt2019-06-141-0/+2
| | | | | | | | | | The ntlmclient dependency has quite a lot of places with implicit fallthroughs. As at least modern GCC has enabled warnings on implicit fallthroughs by default, the developer is greeted with a wall of warnings when compiling that dependency. Disable implicit fallthrough warnings for ntlmclient to fix this issue.
* http_parser: handle URLs with colon but no portEdward Thomson2019-06-111-1/+0
| | | | | | When the end of the host is reached, and we're at the colon separating the host with the port (ie, there is no numeric port) then do not error. This is allowed by RFC 3986.
* ntlm: add ntlmclient as a dependencyEdward Thomson2019-06-1018-0/+4455
| | | | Include https://github.com/ethomson/ntlmclient as a dependency.
* cmake: disable fallthrough warnings for PCREethomson/pcre_warningsEdward Thomson2019-05-221-0/+1
| | | | | Our PCRE dependency has uncommented fallthroughs in switch statements. Turn off warnings for those in the PCRE code.
* regex: don't warn on unused functionsEdward Thomson2019-05-191-0/+2
| | | | PCRE includes compatibility functions that may go unused. Don't warn.
* regexec: use pcre as our fallback/builtin regexEdward Thomson2019-05-1943-11974/+47105
| | | | | | | Use PCRE 8.42 as the builtin regex implementation, using its POSIX compatibility layer. PCRE uses ASCII by default and the users locale will not influence its behavior, so its `regcomp` implementation is similar to `regcomp_l` with a C locale.
* Attempt at fixing the MingW64 compilationlhchavez2019-01-061-0/+1
| | | | It seems like MingW64's size_t is defined differently than in Linux.
* docs: clarify and include licenses of dependenciesPatrick Steinhardt2018-08-305-0/+2024
| | | | | | | | While our contribution guide tries to make clear the licenses that apply to libgit2, it does not make clear that different licenses apply to our bundled dependencies. Make this clear by listing each dependency together with the licenses that they are governed by. Furthermore, bundle the complete license texts next to the code they apply to.
* deps: fix implicit fallthrough warning in http-parserPatrick Steinhardt2018-06-221-0/+2
| | | | | | | | | | | | | | | | GCC 7 has introduced new warnings for implicit fallthrough in switch statements. Whenever there is no branch in a case block, GCC will watch out for some heuristics which indicate that the implicit fallthrough is intended, like a "fallthrough" comment. The third-party http-parser code manages to trick this heuristic in one case, even though there is a "FALLTHROUGH" comment. Fortunately, GCC has also added a strictness level to the -Wimplicit-fallthrough diagnostic, such that we can loosen this heuristic and make it more lax. Set -Wimplicit-fallthrough=1 in http-parser's CMake build instructions, which is the strictest level that gets rid of the warning. This level will treat any kind of comment as a "fallthrough" comment, which silences the warning.
* deps: upgrade embedded zlib to version 1.2.11Patrick Steinhardt2018-03-0715-724/+1816
| | | | | | | | | | | | | The current version of zlib bundled with libgit2 is version 1.2.8. This version has several CVEs assigned: - CVE-2016-9843 - CVE-2016-9841 - CVE-2016-9842 - CVE-2016-9840 Upgrade the bundled version to the current release 1.2.11, which has these vulnerabilities fixes.
* mingw: update TLS option flagsEdward Thomson2018-02-271-4/+6
| | | | | | | | Include the constants for `WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1` and `WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2` so that they can be used by mingw. This updates both the `deps/winhttp` framework (for classic mingw) and adds the defines for mingw64, which does not use that framework.
* cmake: use project-relative binary and source directoriesPatrick Steinhardt2017-10-201-1/+1
| | | | | | | | | | | | | | | | | | | Due to our split of CMake files into multiple modules, we had to replace some uses of the `${CMAKE_CURRENT_SOURCE_DIR}` and `${CMAKE_CURRENT_BINARY_DIR}` variables and replace them with `${CMAKE_SOURCE_DIR}` and `${CMAKE_BINARY_DIR}`. This enabled us to still be able to refer to top-level files when defining build instructions inside of a subdirectory. When replacing all variables, it was assumed that the absolute set of variables is always relative to the current project. But in fact, this is not the case, as these variables always point to the source and binary directory as given by the top-levl project. So the change actually broke the ability to include libgit2 directly as a subproject, as source files cannot be found anymore. Fix this by instead using project-specific source and binary directories with `${libgit2_SOURCE_DIR}` and `${libgit2_BINARY_DIR}`.
* cmake: fix static linking for bundled depsPatrick Steinhardt2017-09-203-3/+3
| | | | | | | | | | | | | | | | | Our bundled deps are being built as simple static libraries which are then linked into the libgit2 library via `TARGET_LINK_LIBRARIES`. While this works for a dynamically built libgit2 library, using this function to link two static libraries does not have the expected outcome of merging those static libraries into one big library. This leads to symbols of our bundled deps being undefined in the resulting libgit2 archive. As we have bumped our minimum CMake version to 2.8.11, we can now easily make use of object libraries for our bundled dependencies. So build instructions are still self-contained inside of the dependency directories and the resulting object libraries can just be added to the LIBGIT2_OBJECTS list, which will cause them to be linked into the final resulting static library. This fixes the issue of undefined symbols.
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