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chore: Do not duplicate sanitizer flags (#7058)

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Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Ayaz Salikhov
2026-05-05 17:32:43 +01:00
committed by GitHub
parent 6e6fb9cdf3
commit 27f7fdb3a6
7 changed files with 179 additions and 299 deletions
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1
.github/workflows/reusable-build-test-config.yml vendored
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@@ -143,7 +143,6 @@ jobs:
working-directory: ${{ env.BUILD_DIR }}
env:
BUILD_TYPE: ${{ inputs.build_type }}
SANITIZERS: ${{ inputs.sanitizers }}
CMAKE_ARGS: ${{ inputs.cmake_args }}
run: |
cmake \

6
BUILD.md
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@@ -530,16 +530,16 @@ stored inside the build directory, as either of:
## Sanitizers
To build dependencies and xrpld with sanitizer instrumentation, set the
`SANITIZERS` environment variable (only once before running conan and cmake) and use the `sanitizers` profile in conan:
`SANITIZERS` environment variable when running `conan install` and use the `sanitizers` profile:
```bash
export SANITIZERS=address,undefinedbehavior
conan install .. --output-folder . --profile:all sanitizers --build missing --settings build_type=Debug
cmake -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake -DCMAKE_BUILD_TYPE=Debug -Dxrpld=ON -Dtests=ON ..
```
You can then build and test as usual, with the generated `xrpld` binary containing the sanitizer instrumentation. When you run it, it will report any sanitizer errors it detects in the console output.
See [Sanitizers docs](./docs/build/sanitizers.md) for more details.
## Options

241
cmake/XrplSanitizers.cmake
View File

@@ -1,140 +1,33 @@
#[===================================================================[
Configure sanitizers based on environment variables.
Apply sanitizer flags built by the Conan profile.
This module reads the following environment variables:
- SANITIZERS: The sanitizers to enable. Possible values:
- "address"
- "address,undefinedbehavior"
- "thread"
- "thread,undefinedbehavior"
- "undefinedbehavior"
Parsing, validation, and flag construction are performed in conan/profiles/sanitizers.
This module reads the following CMake variables injected by the Conan toolchain via extra_variables:
The compiler type and platform are detected in CompilationEnv.cmake.
The sanitizer compile options are applied to the 'common' interface library
which is linked to all targets in the project.
- SANITIZERS: The active sanitizers (e.g. "address,undefinedbehavior").
- SANITIZERS_COMPILER_FLAGS: Space-separated compiler flags.
- SANITIZERS_LINKER_FLAGS: Space-separated linker flags.
Internal flag variables set by this module:
- SANITIZER_TYPES: List of sanitizer types to enable (e.g., "address",
"thread", "undefined"). And two more flags for undefined behavior sanitizer (e.g., "float-divide-by-zero", "unsigned-integer-overflow").
This list is joined with commas and passed to -fsanitize=<list>.
- SANITIZERS_COMPILE_FLAGS: Compiler flags for sanitizer instrumentation.
Includes:
* -fno-omit-frame-pointer: Preserves frame pointers for stack traces
* -O1: Minimum optimization for reasonable performance
* -fsanitize=<types>: Enables sanitizer instrumentation
* -fsanitize-ignorelist=<path>: (Clang only) Compile-time ignorelist
* -mcmodel=large/medium: (GCC only) Code model for large binaries
* -Wno-stringop-overflow: (GCC only) Suppresses false positive warnings
* -Wno-tsan: (For GCC TSAN combination only) Suppresses atomic_thread_fence warnings
- SANITIZERS_LINK_FLAGS: Linker flags for sanitizer runtime libraries.
Includes:
* -fsanitize=<types>: Links sanitizer runtime libraries
* -mcmodel=large/medium: (GCC only) Matches compile-time code model
- SANITIZERS_RELOCATION_FLAGS: (GCC only, x86_64 only) Code model flags for linking.
Used to handle large instrumented binaries on x86_64:
* -mcmodel=large: For AddressSanitizer (prevents relocation errors)
* -mcmodel=medium: For ThreadSanitizer (large model is incompatible)
On ARM64, these flags are omitted since GCC does not support
-mcmodel=large with -fPIC, and -mcmodel=medium does not exist.
The flags are applied to the 'common' interface library which is linked to all targets in the project.
#]===================================================================]
include_guard(GLOBAL)
include(CompilationEnv)
# Read environment variable
set(SANITIZERS "")
if(DEFINED ENV{SANITIZERS})
set(SANITIZERS "$ENV{SANITIZERS}")
endif()
# Set SANITIZERS_ENABLED flag for use in other modules
if(SANITIZERS MATCHES "address|thread|undefinedbehavior")
set(SANITIZERS_ENABLED TRUE)
else()
if(NOT DEFINED SANITIZERS)
set(SANITIZERS_ENABLED FALSE)
return()
endif()
set(SANITIZERS_ENABLED TRUE)
# Sanitizers are not supported on Windows/MSVC
if(is_msvc)
message(
FATAL_ERROR
"Sanitizers are not supported on Windows/MSVC. "
"Please unset the SANITIZERS environment variable."
)
endif()
message(STATUS "=== Configuring Sanitizers ===")
message(STATUS " SANITIZERS: ${SANITIZERS}")
message(STATUS " Compile flags: ${SANITIZERS_COMPILER_FLAGS}")
message(STATUS " Link flags: ${SANITIZERS_LINKER_FLAGS}")
message(STATUS "Configuring sanitizers: ${SANITIZERS}")
# Parse SANITIZERS value to determine which sanitizers to enable
set(enable_asan FALSE)
set(enable_tsan FALSE)
set(enable_ubsan FALSE)
# Normalize SANITIZERS into a list
set(san_list "${SANITIZERS}")
string(REPLACE "," ";" san_list "${san_list}")
separate_arguments(san_list)
foreach(san IN LISTS san_list)
if(san STREQUAL "address")
set(enable_asan TRUE)
elseif(san STREQUAL "thread")
set(enable_tsan TRUE)
elseif(san STREQUAL "undefinedbehavior")
set(enable_ubsan TRUE)
else()
message(
FATAL_ERROR
"Unsupported sanitizer type: ${san}"
"Supported: address, thread, undefinedbehavior and their combinations."
)
endif()
endforeach()
# Validate sanitizer compatibility
if(enable_asan AND enable_tsan)
message(
FATAL_ERROR
"AddressSanitizer and ThreadSanitizer are incompatible and cannot be enabled simultaneously. "
"Use 'address' or 'thread', optionally with 'undefinedbehavior'."
)
endif()
# Frame pointer is required for meaningful stack traces. Sanitizers recommend minimum of -O1 for reasonable performance
set(SANITIZERS_COMPILE_FLAGS "-fno-omit-frame-pointer" "-O1")
# Build the sanitizer flags list
set(SANITIZER_TYPES)
if(enable_asan)
list(APPEND SANITIZER_TYPES "address")
elseif(enable_tsan)
list(APPEND SANITIZER_TYPES "thread")
endif()
if(enable_ubsan)
# UB sanitizer flags
list(APPEND SANITIZER_TYPES "undefined" "float-divide-by-zero")
if(is_clang)
# Clang supports additional UB checks. More info here
# https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html
list(APPEND SANITIZER_TYPES "unsigned-integer-overflow")
endif()
endif()
# Configure code model for GCC on amd64 Use large code model for ASAN to avoid relocation errors Use medium code model
# for TSAN (large is not compatible with TSAN)
set(SANITIZERS_RELOCATION_FLAGS)
# Compiler-specific configuration
# GCC with sanitizers is incompatible with mold, gold, and lld linkers.
# Namely, the instrumented binary exceeds size limits imposed by these linkers.
if(is_gcc)
# Disable mold, gold and lld linkers for GCC with sanitizers Use default linker (bfd/ld) which is more lenient with
# mixed code models This is needed since the size of instrumented binary exceeds the limits set by mold, lld and
# gold linkers
set(use_mold OFF CACHE BOOL "Use mold linker" FORCE)
set(use_gold OFF CACHE BOOL "Use gold linker" FORCE)
set(use_lld OFF CACHE BOOL "Use lld linker" FORCE)
@@ -142,82 +35,62 @@ if(is_gcc)
STATUS
" Disabled mold, gold, and lld linkers for GCC with sanitizers"
)
# Suppress false positive warnings in GCC with stringop-overflow
list(APPEND SANITIZERS_COMPILE_FLAGS "-Wno-stringop-overflow")
if(is_amd64 AND enable_asan)
message(STATUS " Using large code model (-mcmodel=large)")
list(APPEND SANITIZERS_COMPILE_FLAGS "-mcmodel=large")
list(APPEND SANITIZERS_RELOCATION_FLAGS "-mcmodel=large")
elseif(enable_tsan)
# GCC doesn't support atomic_thread_fence with tsan. Suppress warnings.
list(APPEND SANITIZERS_COMPILE_FLAGS "-Wno-tsan")
if(is_amd64)
message(STATUS " Using medium code model (-mcmodel=medium)")
list(APPEND SANITIZERS_COMPILE_FLAGS "-mcmodel=medium")
list(APPEND SANITIZERS_RELOCATION_FLAGS "-mcmodel=medium")
endif()
endif()
# Join sanitizer flags with commas for -fsanitize option
list(JOIN SANITIZER_TYPES "," SANITIZER_TYPES_STR)
# Add sanitizer to compile and link flags
list(APPEND SANITIZERS_COMPILE_FLAGS "-fsanitize=${SANITIZER_TYPES_STR}")
set(SANITIZERS_LINK_FLAGS
"${SANITIZERS_RELOCATION_FLAGS}"
"-fsanitize=${SANITIZER_TYPES_STR}"
)
elseif(is_clang)
# Add ignorelist for Clang (GCC doesn't support this) Use CMAKE_SOURCE_DIR to get the path to the ignorelist
set(IGNORELIST_PATH
"${CMAKE_SOURCE_DIR}/sanitizers/suppressions/sanitizer-ignorelist.txt"
)
if(NOT EXISTS "${IGNORELIST_PATH}")
message(
FATAL_ERROR
"Sanitizer ignorelist not found: ${IGNORELIST_PATH}"
)
endif()
list(
APPEND SANITIZERS_COMPILE_FLAGS
"-fsanitize-ignorelist=${IGNORELIST_PATH}"
)
message(STATUS " Using sanitizer ignorelist: ${IGNORELIST_PATH}")
# Join sanitizer flags with commas for -fsanitize option
list(JOIN SANITIZER_TYPES "," SANITIZER_TYPES_STR)
# Add sanitizer to compile and link flags
list(APPEND SANITIZERS_COMPILE_FLAGS "-fsanitize=${SANITIZER_TYPES_STR}")
set(SANITIZERS_LINK_FLAGS "-fsanitize=${SANITIZER_TYPES_STR}")
endif()
message(STATUS " Compile flags: ${SANITIZERS_COMPILE_FLAGS}")
message(STATUS " Link flags: ${SANITIZERS_LINK_FLAGS}")
# Flags arrive as space-separated strings; split into CMake lists before use
separate_arguments(
sanitizers_compiler_flags
UNIX_COMMAND
"${SANITIZERS_COMPILER_FLAGS}"
)
separate_arguments(
sanitizers_linker_flags
UNIX_COMMAND
"${SANITIZERS_LINKER_FLAGS}"
)
# Apply the sanitizer flags to the 'common' interface library This is the same library used by XrplCompiler.cmake
target_compile_options(
common
INTERFACE
$<$<COMPILE_LANGUAGE:CXX>:${SANITIZERS_COMPILE_FLAGS}>
$<$<COMPILE_LANGUAGE:C>:${SANITIZERS_COMPILE_FLAGS}>
$<$<COMPILE_LANGUAGE:CXX>:${sanitizers_compiler_flags}>
$<$<COMPILE_LANGUAGE:C>:${sanitizers_compiler_flags}>
)
target_link_options(common INTERFACE ${sanitizers_linker_flags})
# Apply linker flags
target_link_options(common INTERFACE ${SANITIZERS_LINK_FLAGS})
# This module appends -fsanitize-ignorelist=<path> for Clang builds.
# The ignorelist path contains CMAKE_SOURCE_DIR, so it must be set here, rather than in the Conan profile.
# GCC does not support -fsanitize-ignorelist.
if(is_clang)
set(ignorelist_path
"${CMAKE_SOURCE_DIR}/sanitizers/suppressions/sanitizer-ignorelist.txt"
)
if(NOT EXISTS "${ignorelist_path}")
message(
FATAL_ERROR
"Sanitizer ignorelist not found: ${ignorelist_path}"
)
endif()
target_compile_options(
common
INTERFACE
$<$<COMPILE_LANGUAGE:CXX>:-fsanitize-ignorelist=${ignorelist_path}>
$<$<COMPILE_LANGUAGE:C>:-fsanitize-ignorelist=${ignorelist_path}>
)
message(STATUS " Ignorelist: ${ignorelist_path}")
endif()
# Define SANITIZERS macro for BuildInfo.cpp
set(sanitizers_list)
if(enable_asan)
if(SANITIZERS MATCHES "address")
set(enable_asan ON)
list(APPEND sanitizers_list "ASAN")
endif()
if(enable_tsan)
if(SANITIZERS MATCHES "thread")
set(enable_tsan ON)
list(APPEND sanitizers_list "TSAN")
endif()
if(enable_ubsan)
if(SANITIZERS MATCHES "undefinedbehavior")
set(enable_ubsan ON)
list(APPEND sanitizers_list "UBSAN")
endif()

2
conan/profiles/ci
View File

@@ -1 +1 @@
include(sanitizers)
include(sanitizers)

182
conan/profiles/sanitizers
View File

@@ -3,96 +3,120 @@ include(default)
{% set arch = detect_api.detect_arch() %}
{% set sanitizers = os.getenv("SANITIZERS") %}
[conf]
{% if sanitizers %}
{% if compiler == "gcc" %}
{% if "address" in sanitizers or "thread" in sanitizers or "undefinedbehavior" in sanitizers %}
{% set sanitizer_list = [] %}
{% set defines = [] %}
{% set model_code = "" %}
{% set extra_cxxflags = ["-fno-omit-frame-pointer", "-O1", "-Wno-stringop-overflow"] %}
{% if not sanitizers %}
{# Sanitizers not configured; no additional settings needed #}
{% else %}
{% if "address" in sanitizers %}
{% set _ = sanitizer_list.append("address") %}
{% if arch == "x86_64" %}
{% set model_code = "-mcmodel=large" %}
{% endif %}
{% set _ = defines.append("BOOST_USE_ASAN")%}
{% set _ = defines.append("BOOST_USE_UCONTEXT")%}
{% elif "thread" in sanitizers %}
{% set _ = sanitizer_list.append("thread") %}
{% if arch == "x86_64" %}
{% set model_code = "-mcmodel=medium" %}
{% endif %}
{% set _ = extra_cxxflags.append("-Wno-tsan") %}
{% set _ = defines.append("BOOST_USE_TSAN")%}
{% set _ = defines.append("BOOST_USE_UCONTEXT")%}
{% endif %}
{% if compiler == "msvc" %}
{{ "Sanitizers are not supported on Windows/MSVC. Please unset the SANITIZERS environment variable." }}
{% endif %}
{% if "undefinedbehavior" in sanitizers %}
{% set _ = sanitizer_list.append("undefined") %}
{% set _ = sanitizer_list.append("float-divide-by-zero") %}
{% endif %}
{% set known_sanitizers = ["address", "thread", "undefinedbehavior"] %}
{% set provided_sanitizers = [] %}
{% for san in sanitizers.split(",") %}
{% set san = san.strip() %}
{% if san not in known_sanitizers %}
{{ "Unknown sanitizer in SANITIZERS: " ~ san }}
{% endif %}
{% set _ = provided_sanitizers.append(san) %}
{% endfor %}
{% set sanitizer_flags = "-fsanitize=" ~ ",".join(sanitizer_list) ~ " " ~ model_code %}
{% set enable_asan = "address" in provided_sanitizers %}
{% set enable_tsan = "thread" in provided_sanitizers %}
{% set enable_ubsan = "undefinedbehavior" in provided_sanitizers %}
tools.build:cxxflags+=['{{sanitizer_flags}} {{" ".join(extra_cxxflags)}}']
tools.build:sharedlinkflags+=['{{sanitizer_flags}}']
tools.build:exelinkflags+=['{{sanitizer_flags}}']
tools.build:defines+={{defines}}
{% endif %}
{% elif compiler == "apple-clang" or compiler == "clang" %}
{% if "address" in sanitizers or "thread" in sanitizers or "undefinedbehavior" in sanitizers %}
{% set sanitizer_list = [] %}
{% set defines = [] %}
{% set extra_cxxflags = ["-fno-omit-frame-pointer", "-O1"] %}
{% if enable_asan and enable_tsan %}
{{ "AddressSanitizer and ThreadSanitizer are incompatible and cannot be enabled simultaneously." }}
{% endif %}
{% if "address" in sanitizers %}
{% set _ = sanitizer_list.append("address") %}
{% set _ = defines.append("BOOST_USE_ASAN")%}
{% set _ = defines.append("BOOST_USE_UCONTEXT")%}
{% elif "thread" in sanitizers %}
{% set _ = sanitizer_list.append("thread") %}
{% set _ = defines.append("BOOST_USE_TSAN")%}
{% set _ = defines.append("BOOST_USE_UCONTEXT")%}
{% endif %}
{% set sanitizer_types = [] %}
{% set defines = [] %}
{% if "undefinedbehavior" in sanitizers %}
{% set _ = sanitizer_list.append("undefined") %}
{% set _ = sanitizer_list.append("float-divide-by-zero") %}
{% set _ = sanitizer_list.append("unsigned-integer-overflow") %}
{% endif %}
{% if enable_asan %}
{% set _ = sanitizer_types.append("address") %}
{% set _ = defines.append("BOOST_USE_ASAN") %}
{% set _ = defines.append("BOOST_USE_UCONTEXT") %}
{% elif enable_tsan %}
{% set _ = sanitizer_types.append("thread") %}
{% set _ = defines.append("BOOST_USE_TSAN") %}
{% set _ = defines.append("BOOST_USE_UCONTEXT") %}
{% endif %}
{% set sanitizer_flags = "-fsanitize=" ~ ",".join(sanitizer_list) %}
tools.build:cxxflags+=['{{sanitizer_flags}} {{" ".join(extra_cxxflags)}}']
tools.build:sharedlinkflags+=['{{sanitizer_flags}}']
tools.build:exelinkflags+=['{{sanitizer_flags}}']
tools.build:defines+={{defines}}
{% endif %}
{% if enable_ubsan %}
{% set _ = sanitizer_types.append("undefined") %}
{% set _ = sanitizer_types.append("float-divide-by-zero") %}
{# Clang supports additional UB checks beyond the GCC baseline #}
{% if compiler == "clang" or compiler == "apple-clang" %}
{% set _ = sanitizer_types.append("unsigned-integer-overflow") %}
{% endif %}
{% endif %}
{# Frame pointer required for meaningful stack traces; -O1 for reasonable performance #}
{% set compile_flags = ["-fno-omit-frame-pointer", "-O1"] %}
{% if compiler == "gcc" %}
{# Suppress false positive warnings with GCC #}
{% set _ = compile_flags.append("-Wno-stringop-overflow") %}
{% set relocation_flags = [] %}
{% if arch == "x86_64" and enable_asan %}
{# Large code model prevents relocation errors in instrumented ASAN binaries #}
{% set _ = compile_flags.append("-mcmodel=large") %}
{% set _ = relocation_flags.append("-mcmodel=large") %}
{% elif enable_tsan %}
{# GCC doesn't support atomic_thread_fence with TSAN; suppress warnings #}
{% set _ = compile_flags.append("-Wno-tsan") %}
{% if arch == "x86_64" %}
{# Medium code model for TSAN; large is incompatible #}
{% set _ = compile_flags.append("-mcmodel=medium") %}
{% set _ = relocation_flags.append("-mcmodel=medium") %}
{% endif %}
{% endif %}
{% set fsanitize = "-fsanitize=" ~ ",".join(sanitizer_types) %}
{% set _ = compile_flags.append(fsanitize) %}
{% set _ = relocation_flags.append(fsanitize) %}
{% set sanitizer_compiler_flags = " ".join(compile_flags) %}
{% set sanitizer_linker_flags = " ".join(relocation_flags) %}
{% elif compiler == "clang" or compiler == "apple-clang" %}
{% set fsanitize = "-fsanitize=" ~ ",".join(sanitizer_types) %}
{% set _ = compile_flags.append(fsanitize) %}
{% set sanitizer_compiler_flags = " ".join(compile_flags) %}
{% set sanitizer_linker_flags = fsanitize %}
{% endif %}
[conf]
tools.build:defines+={{defines}}
tools.build:cxxflags+=['{{sanitizer_compiler_flags}}']
tools.build:sharedlinkflags+=['{{sanitizer_linker_flags}}']
tools.build:exelinkflags+=['{{sanitizer_linker_flags}}']
tools.info.package_id:confs+=["tools.build:cxxflags", "tools.build:exelinkflags", "tools.build:sharedlinkflags", "tools.build:defines"]
# &: means "apply only to the consumer/root package"
&:tools.cmake.cmaketoolchain:extra_variables={"SANITIZERS": "{{sanitizers}}", "SANITIZERS_COMPILER_FLAGS": "{{sanitizer_compiler_flags}}", "SANITIZERS_LINKER_FLAGS": "{{sanitizer_linker_flags}}"}
[options]
{% if sanitizers %}
{% if "address" in sanitizers %}
# Build Boost.Context with ucontext backend (not fcontext) so that
# ASAN fiber-switching annotations (__sanitizer_start/finish_switch_fiber)
# are compiled into the library. fcontext (assembly) has no ASAN support.
# define=BOOST_USE_ASAN=1 is critical: it must be defined when building
# Boost.Context itself so the ucontext backend compiles in the ASAN annotations.
boost/*:extra_b2_flags=context-impl=ucontext address-sanitizer=on define=BOOST_USE_ASAN=1
boost/*:without_context=False
# Boost stacktrace fails to build with some sanitizers
boost/*:without_stacktrace=True
{% elif "thread" in sanitizers %}
# Build Boost.Context with ucontext backend for TSAN. fcontext (assembly)
# has no TSAN annotations, so without this the BOOST_USE_TSAN/BOOST_USE_UCONTEXT
# defines in [conf] would be ineffective.
boost/*:extra_b2_flags=context-impl=ucontext thread-sanitizer=on define=BOOST_USE_TSAN=1
boost/*:without_context=False
boost/*:without_stacktrace=True
{% endif %}
{% if enable_asan %}
# Build Boost.Context with ucontext backend (not fcontext) so that
# ASAN fiber-switching annotations (__sanitizer_start/finish_switch_fiber)
# are compiled into the library. fcontext (assembly) has no ASAN support.
# define=BOOST_USE_ASAN=1 is critical: it must be defined when building
# Boost.Context itself so the ucontext backend compiles in the ASAN annotations.
boost/*:extra_b2_flags=context-impl=ucontext address-sanitizer=on define=BOOST_USE_ASAN=1
boost/*:without_context=False
# Boost stacktrace fails to build with some sanitizers
boost/*:without_stacktrace=True
{% elif enable_tsan %}
# Build Boost.Context with ucontext backend for TSAN. fcontext (assembly)
# has no TSAN annotations, so without this the BOOST_USE_TSAN/BOOST_USE_UCONTEXT
# defines in [conf] would be ineffective.
boost/*:extra_b2_flags=context-impl=ucontext thread-sanitizer=on define=BOOST_USE_TSAN=1
boost/*:without_context=False
boost/*:without_stacktrace=True
{% endif %}
{% endif %}

1
cspell.config.yaml
View File

@@ -71,6 +71,7 @@ words:
- citardauq
- clawback
- clawbacks
- cmaketoolchain
- coeffs
- coldwallet
- compr

45
docs/build/sanitizers.md vendored
View File

@@ -1,15 +1,17 @@
# Sanitizer Configuration for Xrpld
This document explains how to properly configure and run sanitizers (AddressSanitizer, undefinedbehaviorSanitizer, ThreadSanitizer) with the xrpld project.
This document explains how to properly configure and run sanitizers (`AddressSanitizer`, `UndefinedBehaviorSanitizer`, `ThreadSanitizer`) with the xrpld project.
Corresponding suppression files are located in the `sanitizers/suppressions` directory.
> [!CAUTION]
> Do not mix Address and Thread sanitizers - they are incompatible.
> Also, we don't yet support MSVC sanitizers, so this is only for Clang/GCC builds.
- [Sanitizer Configuration for Xrpld](#sanitizer-configuration-for-xrpld)
- [Building with Sanitizers](#building-with-sanitizers)
- [Summary](#summary)
- [Build steps:](#build-steps)
- [Install dependencies](#install-dependencies)
- [Call CMake](#call-cmake)
- [Build](#build)
- [Running Tests with Sanitizers](#running-tests-with-sanitizers)
- [AddressSanitizer (ASAN)](#addresssanitizer-asan)
- [ThreadSanitizer (TSan)](#threadsanitizer-tsan)
@@ -33,9 +35,13 @@ Corresponding suppression files are located in the `sanitizers/suppressions` dir
Follow the same instructions as mentioned in [BUILD.md](../../BUILD.md) but with the following changes:
1. Make sure you have a clean build directory.
2. Set the `SANITIZERS` environment variable before calling conan install and cmake. Only set it once. Make sure both conan and cmake read the same values.
2. Set the `SANITIZERS` environment variable before calling `conan install`. Only set it once.
Example: `export SANITIZERS=address,undefinedbehavior`
3. Optionally use `--profile:all sanitizers` with Conan to build dependencies with sanitizer instrumentation. [!NOTE]Building with sanitizer-instrumented dependencies is slower but produces fewer false positives.
3. Use `--profile:all sanitizers` with Conan to build dependencies with sanitizer instrumentation.
> [!NOTE]
> Building with sanitizer-instrumented dependencies is slower but produces fewer false positives.
4. Set `ASAN_OPTIONS`, `LSAN_OPTIONS`, `UBSAN_OPTIONS` and `TSAN_OPTIONS` environment variables to configure sanitizer behavior when running executables. [More details below](#running-tests-with-sanitizers).
---
@@ -51,36 +57,13 @@ cd .build
#### Install dependencies
The `SANITIZERS` environment variable is used by both Conan and CMake.
The `SANITIZERS` environment variable is used during `conan install` command.
```bash
export SANITIZERS=address,undefinedbehavior
# Standard build (without instrumenting dependencies)
conan install .. --output-folder . --build missing --settings build_type=Debug
# Or with sanitizer-instrumented dependencies (takes longer but fewer false positives)
conan install .. --output-folder . --profile:all sanitizers --build missing --settings build_type=Debug
SANITIZERS=address,undefinedbehavior conan install .. --output-folder . --build missing --settings build_type=Debug --profile:all sanitizers
```
[!CAUTION]
Do not mix Address and Thread sanitizers - they are incompatible.
Since you already set the `SANITIZERS` environment variable when running Conan, same values will be read for the next part.
#### Call CMake
```bash
cmake .. -G Ninja \
-DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake \
-DCMAKE_BUILD_TYPE=Debug \
-Dtests=ON -Dxrpld=ON
```
#### Build
```bash
cmake --build . --parallel 4
```
Proceed with the rest of the build instructions as mentioned in [BUILD.md](../../BUILD.md).
## Running Tests with Sanitizers