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united the static fat runtime dispatcher with the BSD support.

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This commit is contained in:
Gregory Economou
2024-04-15 14:59:08 +03:00
parent 2e86b8524d
commit d96206a12f
4 changed files with 240 additions and 63 deletions
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12
cmake/build_wrapper.sh
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@@ -15,13 +15,21 @@ SYMSFILE=$(mktemp -p /tmp ${PREFIX}_rename.syms.XXXXX)
KEEPSYMS=$(mktemp -p /tmp keep.syms.XXXXX)
# find the libc used by gcc
LIBC_SO=$("$@" --print-file-name=libc.so.6)
NM_FLAG="-f"
if [ `uname` = "FreeBSD" ]; then
# for freebsd, we will specify the name,
# we will leave it work as is in linux
LIBC_SO=/lib/libc.so.7
# also, in BSD, the nm flag -F corresponds to the -f flag in linux.
NM_FLAG="-F"
fi
cp ${KEEPSYMS_IN} ${KEEPSYMS}
# get all symbols from libc and turn them into patterns
nm -f p -g -D ${LIBC_SO} | sed -s 's/\([^ @]*\).*/^\1$/' >> ${KEEPSYMS}
nm ${NM_FLAG} p -g -D ${LIBC_SO} | sed 's/\([^ @]*\).*/^\1$/' >> ${KEEPSYMS}
# build the object
"$@"
# rename the symbols in the object
nm -f p -g ${OUT} | cut -f1 -d' ' | grep -v -f ${KEEPSYMS} | sed -e "s/\(.*\)/\1\ ${PREFIX}_\1/" >> ${SYMSFILE}
nm ${NM_FLAG} p -g ${OUT} | cut -f1 -d' ' | grep -v -f ${KEEPSYMS} | sed -e "s/\(.*\)/\1\ ${PREFIX}_\1/" >> ${SYMSFILE}
if test -s ${SYMSFILE}
then
objcopy --redefine-syms=${SYMSFILE} ${OUT}

35
cmake/osdetection.cmake
View File

@@ -4,14 +4,13 @@ endif(CMAKE_SYSTEM_NAME MATCHES "Linux")
if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
set(FREEBSD true)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH true)
endif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
if(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
set(NETBSD true)
endif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
if (LINUX AND (ARCH_IA32 OR ARCH_X86_64))
if (ARCH_IA32 OR ARCH_X86_64)
option(FAT_RUNTIME "Build a library that supports multiple microarchitectures" ON)
else()
option(FAT_RUNTIME "Build a library that supports multiple microarchitectures" OFF)
@@ -19,26 +18,22 @@ endif()
if (FAT_RUNTIME)
message("Checking Fat Runtime Requirements...")
if (NOT LINUX)
message(FATAL_ERROR "Fat runtime is only supported on Linux OS")
else()
if (USE_CPU_NATIVE AND FAT_RUNTIME)
message(FATAL_ERROR "Fat runtime is not compatible with Native CPU detection")
endif()
if (USE_CPU_NATIVE AND FAT_RUNTIME)
message(FATAL_ERROR "Fat runtime is not compatible with Native CPU detection")
endif()
if (NOT (ARCH_IA32 OR ARCH_X86_64 OR ARCH_AARCH64))
message(FATAL_ERROR "Fat runtime is only supported on Intel and Aarch64 architectures")
if (NOT (ARCH_IA32 OR ARCH_X86_64 OR ARCH_AARCH64))
message(FATAL_ERROR "Fat runtime is only supported on Intel and Aarch64 architectures")
else()
message(STATUS "Building Fat runtime for multiple microarchitectures")
message(STATUS "generator is ${CMAKE_GENERATOR}")
if (NOT (CMAKE_GENERATOR MATCHES "Unix Makefiles" OR
(CMAKE_VERSION VERSION_GREATER "3.0" AND CMAKE_GENERATOR MATCHES "Ninja")))
message (FATAL_ERROR "Building the fat runtime requires the Unix Makefiles generator, or Ninja with CMake v3.0 or higher")
else()
message(STATUS "Building Fat runtime for multiple microarchitectures")
message(STATUS "generator is ${CMAKE_GENERATOR}")
if (NOT (CMAKE_GENERATOR MATCHES "Unix Makefiles" OR
(CMAKE_VERSION VERSION_GREATER "3.0" AND CMAKE_GENERATOR MATCHES "Ninja")))
message (FATAL_ERROR "Building the fat runtime requires the Unix Makefiles generator, or Ninja with CMake v3.0 or higher")
else()
include (${CMAKE_MODULE_PATH}/attrib.cmake)
if (NOT HAS_C_ATTR_IFUNC)
message(FATAL_ERROR "Compiler does not support ifunc attribute, cannot build fat runtime")
endif()
include (${CMAKE_MODULE_PATH}/attrib.cmake)
if (NOT HAS_C_ATTR_IFUNC)
message(FATAL_ERROR "Compiler does not support ifunc attribute, cannot build fat runtime")
endif()
endif()
endif()