support ndk >= r22

1 files changed, 75 insertions, 13 deletions

diff --git a/xmake/modules/detect/sdks/find_ndk.lua b/xmake/modules/detect/sdks/find_ndk.lua
index 996b63e8c..bc07f6081 100644
--- a/xmake/modules/detect/sdks/find_ndk.lua
+++ b/xmake/modules/detect/sdks/find_ndk.lua
@@ -25,6 +25,24 @@ import("core.project.config")
 import("core.cache.detectcache")
 import("lib.detect.find_directory")
 
+-- get triple
+function _get_triple(arch)
+    local triples =
+    {
+        ["armv5te"]     = "arm-linux-androideabi"   -- deprecated
+    ,   ["armv7-a"]     = "arm-linux-androideabi"   -- deprecated
+    ,   ["armeabi"]     = "arm-linux-androideabi"   -- removed in ndk r17
+    ,   ["armeabi-v7a"] = "arm-linux-androideabi"
+    ,   ["arm64-v8a"]   = "aarch64-linux-android"
+    ,   i386            = "i686-linux-android"      -- deprecated
+    ,   x86             = "i686-linux-android"
+    ,   x86_64          = "x86_64-linux-android"
+    ,   mips            = "mips-linux-android"      -- removed in ndk r17
+    ,   mips64          = "mips64-linux-android"    -- removed in ndk r17
+    }
+    return triples[arch]
+end
+
 -- find ndk directory
 function _find_ndkdir(sdkdir)
 
@@ -46,7 +64,7 @@ function _find_ndkdir(sdkdir)
 end
 
 -- find the sdk version of ndk
-function _find_ndk_sdkver(sdkdir, bindir, arch)
+function _find_ndk_sdkver(sdkdir, bindir, sysroot, arch)
 
     -- uses llvm stl?
     local use_llvm = false
@@ -60,18 +78,32 @@ function _find_ndk_sdkver(sdkdir, bindir, arch)
         use_llvm = true
     end
 
+    -- get triple
+    local triple = _get_triple(arch)
+
     -- try to select the best compatible version
     local sdkver = "16"
     if use_llvm or arch == "arm64-v8a" then
         sdkver = "21"
     end
+    if sysroot then
+        if os.isdir(path.join(sysroot, "usr", "lib", triple, sdkver)) then
+            return sdkver
+        end
+    end
     if os.isdir(path.join(sdkdir, "platforms", "android-" .. sdkver)) then
         return sdkver
     end
 
     -- find the max version
     local sdkver_max = 0
-    for _, sdkdir in ipairs(os.dirs(path.join(sdkdir, "platforms", "android-*"))) do
+    local sdkver_dir_pattern
+    if sysroot and os.isdir(path.join(sysroot, "usr", "lib")) then
+        sdkver_dir_pattern = path.join(sysroot, "usr", "lib", triple, "*")
+    else
+        sdkver_dir_pattern = path.join(sdkdir, "platforms", "android-*")
+    end
+    for _, sdkdir in ipairs(os.dirs(sdkver_dir_pattern)) do
 
         -- get version
         local filename = path.filename(sdkdir)
@@ -95,6 +127,25 @@ function _find_ndk_toolchains_ver(bindir)
     return bindir:match("%-(%d*%.%d*)[/\\]")
 end
 
+-- find sysroot directory
+function _find_ndk_sysroot(sdkdir)
+
+    -- get sysroot above ndk r22
+    -- @see https://github.com/android/ndk/wiki/Changelog-r22
+    local prebuilt = (is_host("macosx") and "darwin" or os.host()) .. "-x86_64"
+    local sysroot_r22 = path.join(sdkdir, "toolchains", "llvm", "prebuilt", prebuilt, "sysroot")
+    if os.isdir(sysroot_r22) then
+        return sysroot_r22
+    end
+
+    -- get sysroot above ndk r14
+    -- @see https://android.googlesource.com/platform/ndk/+/master/docs/UnifiedHeaders.md
+    local sysroot_r14 = path.join(sdkdir, "sysroot")
+    if os.isdir(sysroot_r14) then
+        return sysroot_r14
+    end
+end
+
 -- find the ndk toolchain
 function _find_ndk(sdkdir, arch, ndk_sdkver, ndk_toolchains_ver)
 
@@ -145,9 +196,6 @@ function _find_ndk(sdkdir, arch, ndk_sdkver, ndk_toolchains_ver)
         return
     end
 
-    -- find the sdk version
-    local sdkver = ndk_sdkver or _find_ndk_sdkver(sdkdir, bindir, arch)
-
     -- find the gcc toolchain
     local gcc_toolchain = find_directory("bin", path.join(sdkdir, "toolchains", gcc_toolchain_subdir, "prebuilt", "*"))
     if gcc_toolchain then
@@ -157,21 +205,35 @@ function _find_ndk(sdkdir, arch, ndk_sdkver, ndk_toolchains_ver)
     -- find the toolchains version
     local toolchains_ver = ndk_toolchains_ver or _find_ndk_toolchains_ver(gcc_toolchain or bindir)
 
+    -- find sysroot directory
+    local sysroot = _find_ndk_sysroot(sdkdir)
+
+    -- find the sdk version
+    local sdkver = ndk_sdkver or _find_ndk_sdkver(sdkdir, bindir, sysroot, arch)
+
     -- get ndk version, e.g. r16b, ..
     local ndkver = nil
-    local ndk_version_header = path.join(sdkdir, "sysroot/usr/include/android/ndk-version.h")
-    if os.isfile(ndk_version_header) then
-        local ndk_version_info = io.readfile(ndk_version_header)
-        if ndk_version_info then
-            ndk_version_info = ndk_version_info:match("#define __NDK_MAJOR__ (%d+)")
+    if sysroot then
+        local ndk_version_header = path.join(sysroot, "usr/include/android/ndk-version.h")
+        if os.isfile(ndk_version_header) then
+            local ndk_version_info = io.readfile(ndk_version_header)
             if ndk_version_info then
-                ndkver = tonumber(ndk_version_info)
+                ndk_version_info = ndk_version_info:match("#define __NDK_MAJOR__ (%d+)")
+                if ndk_version_info then
+                    ndkver = tonumber(ndk_version_info)
+                end
             end
         end
     end
 
-    -- ok?
-    return {ndkver = ndkver, sdkdir = sdkdir, bindir = bindir, cross = cross, sdkver = sdkver, gcc_toolchain = gcc_toolchain, toolchains_ver = toolchains_ver}
+    return {ndkver = ndkver,
+            sdkdir = sdkdir,
+            bindir = bindir,
+            cross = cross,
+            sdkver = sdkver,
+            gcc_toolchain = gcc_toolchain,
+            toolchains_ver = toolchains_ver,
+            sysroot = sysroot}
 end
 
 -- find ndk toolchains