author | Periklis Ntanasis <pntanasis@gmail.com> |
Fri, 28 Jun 2013 22:06:57 +0300 | |
branch | spacecampaign |
changeset 9290 | 478aa681e702 |
parent 9225 | d8d929f92633 |
child 9298 | 2d88d01bad07 |
permissions | -rw-r--r-- |
9152 | 1 |
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#TESTING TIME |
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include(CheckCCompilerFlag) |
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#when you need to check for a linker flag, just leave the argument of "check_c_compiler_flag" empty |
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# CMAKE_C{XX}_FLAGS is for compiler flags (c and c++) |
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# CMAKE_EXE_LINKER_FLAGS is for linker flags (also add them to pascal_flags and haskell_flags) |
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stack-protector flag needs to be passed to the linker as well
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# CMAKE_SHARED_LIBRARY_<lang>_FLAGS same but for shared libraries |
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make sure that also CXX sources pick up the flags (although I'm not 100% of the correctness of the tests)
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#TODO: should there be two different checks for C and CXX? |
6bf5359d5d14
make sure that also CXX sources pick up the flags (although I'm not 100% of the correctness of the tests)
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#stack protection, when found it needs to go in the linker flags too |
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#it is disabled on win32 because it adds a dll and messes with linker |
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#(see 822312 654424 on bugzilla.redhat.com) |
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check_c_compiler_flag("-fstack-protector-all -fstack-protector" HAVE_STACKPROTECTOR) |
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if(HAVE_STACKPROTECTOR AND (NOT WIN32)) |
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use target name instead of the resulting library, use more macros around
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add_flag_append(CMAKE_C_FLAGS "-fstack-protector-all -fstack-protector") |
d8d929f92633
use target name instead of the resulting library, use more macros around
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parents:
9223
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add_flag_append(CMAKE_CXX_FLAGS "-fstack-protector-all -fstack-protector") |
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
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add_flag_append(CMAKE_EXE_LINKER_FLAGS "-fstack-protector-all -fstack-protector") |
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_flag_append(CMAKE_SHARED_LIBRARY_C_FLAGS "-fstack-protector-all -fstack-protector") |
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_flag_append(CMAKE_SHARED_LIBRARY_CXX_FLAGS "-fstack-protector-all -fstack-protector") |
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add fstack-protector and fvisibility=hidden to cmake tests
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endif() |
480f483de544
add fstack-protector and fvisibility=hidden to cmake tests
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9223
71fc5893071c
actually tests are there to be tested, just skip the variable assignment on windows
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#symbol visibility, not supported on Windows |
71fc5893071c
actually tests are there to be tested, just skip the variable assignment on windows
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check_c_compiler_flag("-fvisibility=hidden" HAVE_VISIBILITY) |
71fc5893071c
actually tests are there to be tested, just skip the variable assignment on windows
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if(HAVE_VISIBILITY AND (NOT WIN32)) |
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use target name instead of the resulting library, use more macros around
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parents:
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add_flag_append(CMAKE_C_FLAGS "-fvisibility=hidden") |
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_flag_append(CMAKE_CXX_FLAGS "-fvisibility=hidden") |
9155
480f483de544
add fstack-protector and fvisibility=hidden to cmake tests
koda
parents:
9154
diff
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endif() |
480f483de544
add fstack-protector and fvisibility=hidden to cmake tests
koda
parents:
9154
diff
changeset
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480f483de544
add fstack-protector and fvisibility=hidden to cmake tests
koda
parents:
9154
diff
changeset
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#check for noexecstack on ELF, Gentoo security |
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set(CMAKE_REQUIRED_FLAGS "-Wl,-z,noexecstack") |
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check_c_compiler_flag("" HAVE_NOEXECSTACK) |
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if(HAVE_NOEXECSTACK) |
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use target name instead of the resulting library, use more macros around
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parents:
9223
diff
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add_linker_flag("-znoexecstack") |
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endif() |
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#check for full relro on ELF, Debian security |
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set(CMAKE_REQUIRED_FLAGS "-Wl,-zrelro,-znow") |
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check_c_compiler_flag("" HAVE_RELROFULL) |
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if(HAVE_RELROFULL) |
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use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
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add_linker_flag("-zrelro") |
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_linker_flag("-znow") |
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else() |
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#if full relro is not available, try partial relro |
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set(CMAKE_REQUIRED_FLAGS "-Wl,-zrelro") |
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check_c_compiler_flag("" HAVE_RELROPARTIAL) |
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if(HAVE_RELROPARTIAL) |
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use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_linker_flag("-zrelro") |
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endif() |
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endif() |
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#check for ASLR on Windows Vista or later, requires binutils >= 2.20 |
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set(CMAKE_REQUIRED_FLAGS "-Wl,--nxcompat") |
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check_c_compiler_flag("" HAVE_WINASLR) |
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if(HAVE_WINASLR) |
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use target name instead of the resulting library, use more macros around
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parents:
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add_linker_flag("--nxcompat") |
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endif() |
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#check for DEP on Windows XP SP2 or later, requires binutils >= 2.20 |
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set(CMAKE_REQUIRED_FLAGS "-Wl,--dynamicbase") |
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check_c_compiler_flag("" HAVE_WINDEP) |
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if(HAVE_WINDEP) |
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use target name instead of the resulting library, use more macros around
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parents:
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add_linker_flag("--dynamicbase") |
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endif() |
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9206
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since shared libs are now our friends, let's optimise them
koda
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9169
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#this is actually an optimisation |
4788b24fee05
since shared libs are now our friends, let's optimise them
koda
parents:
9169
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set(CMAKE_REQUIRED_FLAGS "-Wl,--as-needed") |
4788b24fee05
since shared libs are now our friends, let's optimise them
koda
parents:
9169
diff
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check_c_compiler_flag("" HAVE_ASNEEDED) |
4788b24fee05
since shared libs are now our friends, let's optimise them
koda
parents:
9169
diff
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if(HAVE_ASNEEDED) |
9225
d8d929f92633
use target name instead of the resulting library, use more macros around
koda
parents:
9223
diff
changeset
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add_linker_flag("--as-needed") |
9206
4788b24fee05
since shared libs are now our friends, let's optimise them
koda
parents:
9169
diff
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endif() |
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#always unset or these flags will be spread everywhere |
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unset(CMAKE_REQUIRED_FLAGS) |
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