x64 host detection for android.toolchain.cmake on windows (Patch #3110)

Added by qwerty qwerty over 11 years ago. Updated over 11 years ago.

Status:Cancelled Start date:2013-06-21
Priority:Low Due date:
Assignee:Alexander Smorkalov % Done:

0%
Category:android
Target version:-
Affected version:branch 'master' (2.4.9) Operating System:Windows
Difficulty:Medium HW Platform:x64
Pull request:

Description

Following line:

  1. detect current host platform
    if( NOT DEFINED ANDROID_NDK_HOST_X64 AND CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")

does not correctly detects x64 on 64bit Windows where CMAKE_HOST_SYSTEM_PROCESSOR is equal to "x86". It is not a big trouble but lower in code we may find the following lines:

if( NOT ANDROID_NDK_HOST_X64 )
set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} )
endif()

So in situation when host system is Windows and ANDROID_NDK_HOST_X64 is not set by user android.toolchain.cmake replaces correct x64 search path with x32 bit path.

Possible solutions:
  • Do not overwrite ANDROID_NDK_HOST_SYSTEM_NAME (just erase the check) and try to search in it first (nothing bad shall happen in this case)
  • Somehow fix host detection (cmake bug?)

Tested on CMake 2.8.6 with android-ndk-r8e-windows-x86_64

History

#1
Updated by Kirill Kornyakov over 11 years ago

  • Assignee changed from Andrey Kamaev to Alexander Smorkalov
  • Category changed from build/install to android
  • Difficulty changed from Easy to Medium

#2
Updated by Alexander Smorkalov over 11 years ago

  • Assignee changed from Alexander Smorkalov to Andrey Pavlenko

#3
Updated by Alexander Smorkalov over 11 years ago

It looks like cmake bug. I check your issue with cmake 2.8.11 and it works right. Cmake detects processor as AMD64.
It is not OpenCV issue. I cancel the ticket.

  • Assignee changed from Andrey Pavlenko to Alexander Smorkalov
  • Status changed from New to Cancelled

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