• Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Register
  • Login
UBports Robot Logo UBports Forum
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Register
  • Login
  1. Home
  2. erotavlas
E
Offline
  • Profile
  • Following 0
  • Followers 0
  • Topics 0
  • Posts 3
  • Groups 0

erotavlas

@erotavlas

1
Reputation
245
Profile views
3
Posts
0
Followers
0
Following
Joined 7 Dec 2016, 15:12
Last Online 30 Sept 2020, 20:04

erotavlas Unfollow Follow

Best posts made by erotavlas

  • RE: Pine64 PinePhone

    Hi,
    I have some questions about pine64 pinePhone:

    1. I read that UBports will be available as option for the phone. Is the current pinePhone a prototype/development phone or is it at final stage/release phone?
    2. Does UBports support android app? For instance via anbox?
    3. I read here that there are some important stuff that do not work. Do you think that is just a question of time?
    4. Do you have info about SAR value of pinePhone?
      Thank you
    posted in News
    E
    erotavlas
    12 Apr 2020, 08:50

Latest posts made by erotavlas

  • RE: Pine64 PinePhone

    Hi,
    I have some questions about pine64 pinePhone:

    1. I read that UBports will be available as option for the phone. Is the current pinePhone a prototype/development phone or is it at final stage/release phone?
    2. Does UBports support android app? For instance via anbox?
    3. I read here that there are some important stuff that do not work. Do you think that is just a question of time?
    4. Do you have info about SAR value of pinePhone?
      Thank you
    posted in News
    E
    erotavlas
    12 Apr 2020, 08:50
  • RE: Ubuntu touch: different compiling behaviour with different GCC versions

    I corrected all the errors: one was located in file system/core/adb/transport.c, another one in frameworks/base/libs/androidfw/AssetManager.cpp and the other four were located in file frameworks/base/libs/androidfw/ResourceType.cpp. Now I can compile with GCC 4,5,6. In few words, since c++11 has been introduced the type char16_t and GCC 6 supports -std=gnu++14 instead of -std=gnu++98. So since all the warnings are considered as errors due to -Werror a cast from const uint16_t* to const char16_t* solved all the problems. I do not why android developers did not change this.
    I filed a bug to CM, in particular the involved version is 12.1 aka android 5.1.

    posted in Porting
    E
    erotavlas
    10 Dec 2016, 19:05
  • Ubuntu touch: different compiling behaviour with different GCC versions

    Hi,
    I found a strange behaviour of GCC. In few words, I can successfully compile with GCC 5 or GCC 4 while I cannot compile with GCC 6.
    From GCC manual: In GCC 6 the default mode for C++ is now -std=gnu++14 instead of -std=gnu++98 while GCC 5 the default mode for C is now -std=gnu11 instead of -std=gnu89.
    I think that using c++14 causes different behaviour with the same code with respect to previous GCC versions.
    I found the source of problem at least for one error during compiling with GCC 6:
    [CODE]system/core/adb/transport.c:807:9: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation] if (error_out)[/CODE]
    is detected by GCC 6 thank to a new warning -Wmisleading-indentation added to -Wall option https://gcc.gnu.org/gcc-6/porting_to.html while is not detected by GCC 5 or lower version.
    The current source code:
    [CODE]
    if (error_out)
    error_out = "insufficient permissions for device";
    continue;
    [/CODE]
    it should be:
    [CODE]
    if (error_out)
    {
    error_out = "insufficient permissions for device";
    }
    continue;[/CODE]
    with brackets for a better clearness https://stackoverflow.com/questions/2125066/is-it-bad-practice-to-use-an-if-statement-without-brackets#2125207
    After that I corrected this small error, another error appears related to invalid type conversion from const uint16_t
    to const char16_t
    :
    [CODE]
    frameworks/base/libs/androidfw/AssetManager.cpp: In member function ‘android::String8 android::AssetManager::getPkgName(const char*)’:
    frameworks/base/libs/androidfw/AssetManager.cpp:480:63: error: invalid conversion from ‘const char16_t*’ to ‘const uint16_t* {aka const short unsigned int*}’ [-fpermissive]
    const uint16_t* str = tree.getAttributeStringValue(idx, &len);
    ~~~~~~~~~~~~~~~~~~^
    frameworks/base/libs/androidfw/AssetManager.cpp:481:46: error: invalid conversion from ‘const uint16_t* {aka const short unsigned int*}’ to ‘const char16_t*’ [-fpermissive]
    pkgName = (str ? String8(str, len) : String8());
    ^
    In file included from frameworks/base/include/androidfw/Asset.h:30:0,
    from frameworks/base/libs/androidfw/AssetManager.cpp:26:
    system/core/include/utils/String8.h:56:33: note: initializing argument 1 of ‘android::String8::String8(const char16_t*, size_t)’
    explicit String8(const char16_t* o, size_t numChars);

    [/CODE]
    In this case the error is related to android utils library android::String8 which uses different return type. So, I think that such problem should be not related to ubuntu touch, but to general android and CM. Is there a way to compile android or CM with GCC 6?
    I search on the web about this behaviour without success.

    Thank you

    posted in Porting
    E
    erotavlas
    7 Dec 2016, 15:19