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| author | Narayan Kamath <narayan@google.com> | 2014-05-12 11:12:55 +0000 |
|---|---|---|
| committer | Narayan Kamath <narayan@google.com> | 2014-05-12 11:12:55 +0000 |
| commit | 85b60dd97d351766fe1023e9eba23df23644953d (patch) | |
| tree | f76927331a8ea211f37334f6337cc8086c28d501 /docs | |
| parent | 2016d8782c69b0ac6729b47884d874a606ebba52 (diff) | |
| download | ndk-85b60dd97d351766fe1023e9eba23df23644953d.tar.gz | |
Revert "cpu-features: Support 32-bit ARM binaries running on an ARM64 kernel."
This reverts commit 2016d8782c69b0ac6729b47884d874a606ebba52.
Change-Id: I4cdfa6dcc39e5fdd14fc3287d6f44e09eaa910c7
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/text/CPU-FEATURES.text | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/docs/text/CPU-FEATURES.text b/docs/text/CPU-FEATURES.text index 4ec6d20f7..3d6b2adca 100644 --- a/docs/text/CPU-FEATURES.text +++ b/docs/text/CPU-FEATURES.text @@ -43,8 +43,8 @@ Two functions are provided for now: AndroidCpuFamily android_getCpuFamily(); -Returns a value matching the CPU family/architecture supported by the -current process as an enum. Currently, the following families are defined: +Returns the target device's CPU Family as an enum. +Currently, the following families are defined: * `ANDROID_CPU_FAMILY_ARM` @@ -52,15 +52,6 @@ current process as an enum. Currently, the following families are defined: * `ANDROID_CPU_FAMILY_MIPS` - * `ANDROID_CPU_FAMILY_ARM64` - - * `ANDROID_CPU_FAMILY_X86_64` - - * `ANDROID_CPU_FAMILY_MIPS64` - -Note that when running a 32-bit executable on a 64-bit system, this function -will return the 32-bit family value only. - Secondly: uint64_t android_getCpuFeatures(); @@ -69,8 +60,7 @@ Returns the set of optional features supported by the device's CPU. The result is a set of bit-flags, each corresponding to one CPU Family-specific optional feature. -Currently, only the following flags are defined, for the 32-bit ARM CPU -Family: +Currently, only the following flags are defined, for the ARM CPU Family: * `ANDROID_CPU_ARM_FEATURE_VFPv2` > Indicates that the device's CPU supports VFPv2 instruction set. @@ -132,7 +122,7 @@ Family: available since ARMv6. Together they provide atomic update on memory with the help of exclusive monitor. -And the following flags for the 32-bit x86 CPU Family: +And the following flags for the x86 CPU Family: * `ANDROID_CPU_X86_FEATURE_SSSE3` > Indicates that the device's CPU supports the SSSE3 instruction @@ -146,8 +136,6 @@ And the following flags for the 32-bit x86 CPU Family: > Indicates that the device's CPU supports the MOVBE instruction. This one is specific to some Intel IA-32 CPUs, like the Atom. -Other CPU families do not have extensions listed at the moment, which -means that android_getCpuFeatures() will return 0 for them. The following function is also defined to return the max number of CPU cores on the target device: |