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Build error with ghc-8.2.2 for iOS
by Torsten Kemps-Benedix 24 Nov '17

24 Nov '17

Hello all, I try to build ghc-8.2.2 based on a brew installed ghc (8.2.1) on macOS 10.13.1 with current Xcode. I follow the guidelines at https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling/iOS <https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling/iOS> and come to an error at step 5 where ./configure CC=arm-apple-darwin10-clang --target=arm-apple-darwin10; make is being executed. The error reads… arm-apple-darwin10-clang -E -DPROFILING -DTHREADED_RTS -DDEBUG -fno-stack-protector -Wall -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Winline -Waggregate-return -Wpointer-arith -Wmissing-noreturn -Wnested-externs -Wredundant-decls -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -DUSE_LIBFFI_FOR_ADJUSTORS -fno-strict-aliasing -fno-common -Irts/dist/build/./autogen -Wno-unknown-pragmas -O2 -fomit-frame-pointer -g -DRtsWay=\"rts_v\" -Wno-strict-prototypes -MM -x c rts/linker/LoadArchive.c -MF rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm.bit clang: warning: optimization flag '-fomit-frame-pointer' is not supported for target 'armv7' [-Wignored-optimization-argument] rts/linker/LoadArchive.c:57:2: error: Unknown Darwin architecture #error Unknown Darwin architecture ^ 1 error generated. make[1]: *** [rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm] Error 1 make: *** [all] Error 2 This stems from the following code in rts/linker/LoadArchive.c… static StgBool loadFatArchive(char tmp[static 20], FILE* f, pathchar* path) { uint32_t nfat_arch, nfat_offset, cputype, cpusubtype; #if defined(i386_HOST_ARCH) const uint32_t mycputype = CPU_TYPE_X86; const uint32_t mycpusubtype = CPU_SUBTYPE_X86_ALL; #elif defined(x86_64_HOST_ARCH) const uint32_t mycputype = CPU_TYPE_X86_64; const uint32_t mycpusubtype = CPU_SUBTYPE_X86_64_ALL; #elif defined(powerpc_HOST_ARCH) const uint32_t mycputype = CPU_TYPE_POWERPC; const uint32_t mycpusubtype = CPU_SUBTYPE_POWERPC_ALL; #elif defined(powerpc64_HOST_ARCH) const uint32_t mycputype = CPU_TYPE_POWERPC64; const uint32_t mycpusubtype = CPU_SUBTYPE_POWERPC_ALL; #elif defined(aarch64_HOST_ARCH) const uint32_t mycputype = CPU_TYPE_ARM64; const uint32_t mycpusubtype = CPU_SUBTYPE_ARM64_ALL; #else #error Unknown Darwin architecture #endif It seems that the necessary architecture is not provided here? Any help would be very much appreciated! Thanks! Torsten

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FFI calls into Haskell taking a long time
by James Parker 16 Apr '16

16 Apr '16

Hi, I’m exporting a Haskell function that generates RSA keys for an iOS application. I’m using the crypto-pubkey and crypto-random packages. Unfortunately, the key generation is taking an extremely long time (around 5 minutes) when run in the simulator (XCode 7.2.1). When running Haskell code through Criterion, key generation only takes 110ms. When benchmarking a c program that links the Haskell FFI library (on my x86 laptop), key generation takes about 130ms. Does anyone have any ideas why this is so much slower on the simulator? I thought maybe there was an issue with running out of randomness, so I tried creating a fixed seed by using `createTestEntropyPool`, but this did not make any difference. I’ve included the relevant key generate function below. gen :: MonadRandom m => m (RSA.PublicKey, RSA.PrivateKey) gen = withCPRG $ \prg -> return $ RSA.generate prg 256 65537 instance MonadRandom IO where type MonadCPRG IO = SystemRNG withCPRG f = do entropy <- createEntropyPool (res, _) <- f $ cprgCreate entropy return res I’d appreciate any help. Thanks! James

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(no subject)
by Shahbaz Khan 08 Apr '16

08 Apr '16

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Upgrade scripts to XCode 7.2
by James Parker 22 Dec '15

22 Dec '15

Hi, I upgraded XCode to 7.2, however cabal-ios no longer works. When I run `cabal-ios install`, I get the following error. /usr/local/ghc-ios/i386-apple-darwin11-ld: line 8: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ld: No such file or directory /usr/local/ghc-ios/i386-apple-darwin11-ld: line 8: exec: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ld: cannot execute: No such file or directory Failed to install parsec-3.1.9 It looks like the scripts are now broken since Apple moved these files. Looking at my system, these are the only ld binaries available: $ find /Applications/Xcode.app | grep \/ld$ /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld /Applications/Xcode.app/Contents/Developer/usr/bin/ld It doesn’t look like there is a different version for each platform anymore. Does anyone know which ld to use and how to update the ghc-ios-scripts? Thanks! James

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Reading documents on the iPhone
by Freefire 13 Sep '15

13 Sep '15

Hi, I've come across a reading issue on the iPhone, that I asume must be either a document format or VoiceOver setting issue and wonder if anyone can help. I notice it in Access Note, and also when I try to read PDF files etc on my iPhone 5S. It is that they don't read in the way that I like and am used to in that I can't continually single finger swipe to the right to read lines/paragraphs/etc. the swipe doesn't seem to work at all in navigating the text, Rather, I have to place my finger on the screen and move it around, but the reading isn't fluent and doesn't often make sense due to where line ends come. I've tried putting double returns in Access Note, reading documents that are saved from Word, resaving them in different formats etc, but can't read them in a useful way with the swipe. Any advice? Thanks. Ian.

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Installing aeson as a dependency with cabal-ios
by James Parker 19 Aug '15

19 Aug '15

Hi, I’m attempting to install aeson as a dependency for another library with cabal-ios. I’m somewhat confused because I believe I’ve installed aeson (after removing the template haskell), but when I try to build my library, it attempts to install aeson again. Does anyone have any suggestions? You can find the build logs here <http://lpaste.net/7956551478481518592>. Thanks! James

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ARM64 Haskell via GHC 7.10.1 - How to build?
by Manuel Gómez 17 May '15

17 May '15

I see from the discussion in [#7942] that ARM64 support has been merged into GHC and should be available in 7.10.1. This is wonderful — and necessary for iOS development if one intends to pass through the Apple App Store, as since February new apps are rejected lest they support ARM64. However, while scripts seem to be provided in [ghc-ios-scripts] for installing binaries of GHC 7.8.3 for the iOS Simulator (i386-apple-darwin11) and actual iOS devices (arm-apple-darwin10, 32-bit ARM), the scripts for aarch64-apple-darwin14 (ARM64 on iOS devices) aren’t used by the main wrapper scripts and the installation scripts don’t appear to mention anything about installing a GHC built for ARM64 cross-compiling — indeed, it’s only 32-bit ARM via GHC 7.8.3. I can’t find any binary GHCs on the [downloads] either. Building GHC from source for cross-compiling to ARM64 is currently failing for me probably due to some trivial issue with my build environment. «./configure» says: checking version of gcc... configure: error: Need at least gcc version 3.0 (3.4+ recommended) That’s configuring with ./configure --target=aarch64-apple-darwin14 --with-gcc=aarch64-apple-darwin14-clang Furthermore, $ gcc -v Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1 Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn) Target: x86_64-apple-darwin14.3.0 Thread model: posix $ aarch64-apple-darwin14-clang aarch64-apple-darwin14-clang: line 7: /usr/local/opt/llvm/bin/clang: No such file or directory aarch64-apple-darwin14-clang: line 7: exec: /usr/local/opt/llvm/bin/clang: cannot execute: No such file or directory Note the [aarch64-apple-darwin14-clang] command I’m running there is the script from [ghc-ios-scripts], which seems overly simplistic compared to the same script for ARMv7 GHC-iOS: https://github.com/ghc-ios/ghc-ios-scripts/blob/master/arm-apple-darwin10-c… I suppose the solution might even be as simple as installing an adequate version of LLVM+Clang over there at «/usr/local/opt/llvm» which the commands seem to be looking for — but which version might be appropriate? Moreover, is there some guide on how to install what needs to be installed? The ghc-ios scripts get 3.0, yet some Trac comments seem to suggest some very recent version of LLVM, possibly 3.6 or maybe just the latest development version. Is this even something people have working? [#7942]: https://ghc.haskell.org/trac/ghc/ticket/7942 [ghc-ios-scripts]: https://github.com/ghc-ios/ghc-ios-scripts [aarch64-apple-darwin14-clang]: https://github.com/ghc-ios/ghc-ios-scripts/blob/master/aarch64-apple-darwin… [downloads]: https://downloads.haskell.org/~ghc/7.10.1/

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1/17/2015 10:31:13 AM
by Info 17 Jan '15

17 Jan '15

http://www.creativeinfotech.info/er/cebtbpeamuklddwqozfaryzataygbpojimedqtm… Info 1/17/2015 10:31:13 AM

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Up dateing the phone
by Ashwani Jassal 07 Dec '14

07 Dec '14

Hi there I want to up date my phone software from ios 8 to ios 8.1.1 . Can I do it by my self or I need sighted assistance to up date the phone software?

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New member
by Ashwani Jassal 06 Dec '14

06 Dec '14

Hi friends I am Ashwani Jassal from India and have just got I phone 5s. I need your experience and knowledge in order to operate my I phone efficiently. Hope, you all existing members will solve my queries and will make me an efficient user of I phone?

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