diff options
| author | Sverker Eriksson <[email protected]> | 2016-04-12 20:41:58 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2016-04-15 19:02:49 +0200 |
| commit | 85a6623152988c267cea008d20616b61ea9c223c (patch) | |
| tree | c83b93cb1ca5e3f396c62bd4cb7f723d97c9221e /erts/configure.in | |
| parent | 90641d82a4b07e6b0be142d07ac85107b8ebee9d (diff) | |
| download | otp-85a6623152988c267cea008d20616b61ea9c223c.tar.gz otp-85a6623152988c267cea008d20616b61ea9c223c.tar.bz2 otp-85a6623152988c267cea008d20616b61ea9c223c.zip | |
erts: Add 'exec_alloc' for hipe code
that uses its own super carrier (erts_exec_mmapper)
to guarantee low addressed and executable memory (PROT_EXEC).
Currently only used on x86_64 that needs low memory
for HiPE/AMD64's small code model.
By initializing erts_exec_mapper early we secure
its low memory area before erts_literal_mmapper might
steal it.
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index 0257079c3b..462a13269e 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -3351,6 +3351,13 @@ if test X${enable_hipe} = Xyes; then AC_DEFINE(HIPE,[1],[Define to enable HiPE]) HIPE_HELPERS="xmerl syntax_tools edoc" ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS hipe" + case "$ARCH" in + amd64) + # For now exec_alloc is only used for hipe on amd64 + AC_MSG_NOTICE([Enable exec_alloc for hipe code allocation]) + ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS exec_alloc" + ;; + esac fi fi AC_SUBST(HIPE_HELPERS) |