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build: Drop option for disabling hardening

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Building unhardened executables is not a supported use case that should
be maintained and those that want unhardened executables can still
override them by appending disable flags.

For example:

cmake -B build -DAPPEND_CPPFLAGS='-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 -fno-stack-protector -fcf-protection=none -fno-stack-clash-protection' -DAPPEND_LDFLAGS='-Wl,-z,lazy -Wl,-z,norelro -Wl,-z,noseparate-code'
This commit is contained in:
David Gumberg 2025-03-14 10:35:17 -07:00
parent f57db75e91
commit 00ba3ba303
2 changed files with 59 additions and 64 deletions
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4
CMakeLists.txt
View File

@ -128,7 +128,6 @@ if(WITH_BDB)
endif()
cmake_dependent_option(BUILD_WALLET_TOOL "Build bitcoin-wallet tool." ${BUILD_TESTS} "ENABLE_WALLET" OFF)
option(ENABLE_HARDENING "Attempt to harden the resulting executables." ON)
option(REDUCE_EXPORTS "Attempt to reduce exported symbols in the resulting executables." OFF)
option(WERROR "Treat compiler warnings as errors." OFF)
option(WITH_CCACHE "Attempt to use ccache for compiling." ON)
@ -481,7 +480,6 @@ try_append_cxx_flags("-fmacro-prefix-map=A=B" TARGET core_interface SKIP_LINK
# -fstack-reuse=none for all gcc builds. (Only gcc understands this flag).
try_append_cxx_flags("-fstack-reuse=none" TARGET core_interface)
if(ENABLE_HARDENING)
add_library(hardening_interface INTERFACE)
target_link_libraries(core_interface INTERFACE hardening_interface)
if(MSVC)
@ -550,7 +548,6 @@ if(ENABLE_HARDENING)
try_append_linker_flag("-Wl,-fixup_chains" TARGET hardening_interface)
endif()
endif()
endif()
if(REDUCE_EXPORTS)
set(CMAKE_CXX_VISIBILITY_PRESET hidden)
@ -684,7 +681,6 @@ message("Cross compiling ....................... ${cross_status}")
message("C++ compiler .......................... ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}, ${CMAKE_CXX_COMPILER}")
include(FlagsSummary)
flags_summary()
message("Attempt to harden executables ......... ${ENABLE_HARDENING}")
message("Treat compiler warnings as errors ..... ${WERROR}")
message("Use ccache for compiling .............. ${WITH_CCACHE}")
message("\n")

1
CMakePresets.json
View File

@ -77,7 +77,6 @@
"BUILD_UTIL_CHAINSTATE": "ON",
"BUILD_WALLET_TOOL": "ON",
"ENABLE_EXTERNAL_SIGNER": "ON",
"ENABLE_HARDENING": "ON",
"ENABLE_WALLET": "ON",
"WARN_INCOMPATIBLE_BDB": "OFF",
"WITH_BDB": "ON",