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author | Rickard Green <[email protected]> | 2013-07-10 15:08:16 +0200 |
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committer | Rickard Green <[email protected]> | 2013-07-10 15:08:16 +0200 |
commit | a8e229046356fadaa217d1a1606fde750d1e8aa1 (patch) | |
tree | 82600f7c06ddbacb0e976989b9251171a2658097 /HOWTO | |
parent | 393a6c033b7291679eab525cd599024de8b28eec (diff) | |
parent | 75f57c5f9a3bd03cb16e1663d40ea98bbb3ed487 (diff) | |
download | otp-a8e229046356fadaa217d1a1606fde750d1e8aa1.tar.gz otp-a8e229046356fadaa217d1a1606fde750d1e8aa1.tar.bz2 otp-a8e229046356fadaa217d1a1606fde750d1e8aa1.zip |
Merge branch 'maint'
* maint:
Add test cases for native atomics and jump table
Refuse to build SMP runtime by default without native atomics
Make information about use of jump table available via system_info BIF
Make ethread library information available via system_info BIF
Make emulator arguments available via the system_info BIF
Diffstat (limited to 'HOWTO')
-rw-r--r-- | HOWTO/INSTALL.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md index 8051bc4393..fa1b9d2e89 100644 --- a/HOWTO/INSTALL.md +++ b/HOWTO/INSTALL.md @@ -288,6 +288,14 @@ Some of the available `configure` options are: implementation available, you typically want to try using the `libatomic_ops` library. It can be downloaded from <http://www.hpl.hp.com/research/linux/atomic_ops/>. +* `--disable-smp-require-native-atomics` - By default `configure` will + fail if an SMP runtime system is about to be built, and no implementation + for native atomic memory accesses can be found. If this happens, you are + encouraged to find a native atomic implementation that can be used, e.g., + using `libatomic_ops`, but by passing `--disable-smp-require-native-atomics` + you can build using a fallback implementation based on mutexes or spinlocks. + Performance of the SMP runtime system will however suffer immensely without + an implementation for native atomic memory accesses. If you or your system has special requirements please read the `Makefile` for additional configuration information. |