c - iOS library to BitCode -

-

i downloaded xcode 7 beta, , xcode complains of c libraries not being compiled bitcode. how go telling clang produce bitcode compatible ios? i've seen similar answers on stackoverflow, don't know if apply producing bitcode libraries ios.

edit:

i using correct setting, -fembed-bitcode, when try archive, error: ld: warning: ignoring file xxxx/xxxx, file built archive not architecture being linked (arm64). when use -fembed-bitcode-marker, can archive, error: full bitcode bundle not generated because xx/xx built bitcode marker. library must generated xcode archive build bitcode enabled.

any ideas on going wrong? library compiling successfully, doesn't let me archive. created simple add function , made library, , same symptoms, not library i'm compiling.

edit 2: must build both arm64 , armv7 versions using bitcode , lipo them together. using bitcode doesn't take away need fat library when archiving. source : https://forums.developer.apple.com/message/25132#25132

when building static libraries must following bitcode generation: 

-fembed-bitcode

note: command available xcode7+

in regards accepted answer of using -fembed-bitcode-marker

you should aware normal build -fembed-bitcode-marker option produce minimal size embedded bitcode sections without real content. done way of testing bitcode-related aspects of build without slowing down build process. actual bitcode content included when archive build.

bwilson apple staff. https://forums.developer.apple.com/thread/3971#12225

to more specific:

  • -fembed-bitcode-marker marks bitcode in binary after archive build.
  • -fembed-bitcode full bitcode generation , embedding, need use building static libraries.
  • xcode builds -fembed-bitcode-marker regular builds (like deploy simulator)
  • xcode builds -fembed-bitcode archive builds / production builds (as needed apple).

Comments

Post a Comment

Popular posts from this blog

php - Zend Framework / Skeleton-Application / Composer install issue -

-
i trying create zend framework application using skeleton in netbeans. when run composer install, following error message: "c:\php\php.exe" "c:\composer\composer.phar" "--ansi" "--no-interaction" "update" "--dev" using deprecated option "dev". dev packages installed default now. loading composer repositories package information updating dependencies (including require-dev) requirements not resolved installable set of packages. problem 1 - package requires php >=5.5 php version (5.4.42) not satisfy requirement. problem 2 - installation request zendframework/zendframework 2.5.1 -> satisfiable zendframework/zendframework[2.5.1]. - zendframework/zendframework 2.5.1 requires php >=5.5 -> php version (5.4.42) not satisfy requirement. done. apparently, zend framework only needs php 5.3+ contradicts above. need use php 5.4. my composer.json following: { "name": "
Read more

c# - Better 64-bit byte array hash -

-
i need hash algorithm produces 64-bit hash code ( long ) fewer collisions string.gethashcode() , fast (no expensive calls cryptographic functions). here's implementation of fnv still shows 3% of collisions after testing 2 million random strings. need number way lower. void main() { const string chars = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz!#@$%^&*()_+}{\":?><,./;'[]0123456789\\"; const int n = 2000000; var random = new random(); var hashes = new hashset<long>(); int collisions = 0; for(int = 0; < n; i++) { var len = random.next(chars.length); var str = new char[len]; (int j = 0; j < len; j++) { str[j] = chars[random.next(chars.length)]; } var s = new string(str); if(!hashes.add(get64bithash( s ))) collisions++; } console.writeline("collision percentage after " + n + " random strings: " + ((doubl
Read more

python - PyCharm Type error Message -

-
i'm newbie trying out ml/dbn in python (3.4) under pycharm (comm.ed 4.5). following definition def make_thetas(xmin,xmax,n): xs = np.linespace(xmin,xmax,n) widths = (xs[1:] - xs[:-1])/2.0 thetas = xs[:-1] + widths return thetas throws error "class 'tuple' not define ' sub ', '-' operator cannot used on instance" on - operator on third line (widths = ....) ideas on how code running under pycharm - works alright in interactive python window. thx. to all, after g'g lot have found workaround seems work within pycharm. workaround because (even python newbie) expected python not need explicit typecasting, not when using datatypes imported lib such numpy. def make_thetas(xmin,xmax,n): xs = np.array(np.linspace(xmin,xmax,n)) widths = (xs[1:] - xs[:-1])/2.0 thetas = xs[:-1]+ widths return thetas using docstrings type-hinting such below did not work def make_thetas(xmin,xmax,n): "&q
Read more