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Diffstat (limited to 'README')
| -rw-r--r-- | README | 39 |
1 files changed, 37 insertions, 2 deletions
@@ -59,7 +59,7 @@ Suse linux 9.1 is shipped with a patched GCC version 3.3.3, having the rpm named gcc-3.3.3-41. That version has a serious optimization bug that makes it unusable for building the Erlang emulator. Please upgrade GCC to a newer version before building on Suse 9.1. Suse Linux -EnterpriSe edition 9 (SLES9) has gcc-3.3.3-43 and is not affected. +Enterprise edition 9 (SLES9) has gcc-3.3.3-43 and is not affected. gcc-4.3.0 has a serious optimizer bug. It produces an Erlang emulator that will crash immediately. The bug is supposed to be fixed in gcc-4.3.1. @@ -130,7 +130,7 @@ Installing How to build and install Erlang/OTP ----------------------------------- -If you are building in a Git reposistory, see +If you are building in a Git repository, see http://wiki.github.com/erlang/otp @@ -243,6 +243,41 @@ if './otp_build remove_prebuilt_files' is invoked. If you or your system has special requirements please read the Makefile for additional configuration information. + +How to build a debug enabled Erlang runtime system +-------------------------------------------------- + +After completing all the normal building steps described above a debug +enabled runtime system can be built. To do this you have to change +directory to $ERL_TOP/erts/emulator. + +In this directory execute: + + make debug FLAVOR=$FLAVOR + +where $FLAVOR is either "plain" or "smp". The flavor options will +produce a beam.debug and beam.smp.debug executable respectively. The +files are installed along side with the normal (opt) versions beam.smp +and beam. + +To start the debug enabled runtime system execute: + + $ERL_TOP/bin/cerl -debug + +The debug enabled runtime system features lock violation checking, +assert checking and various sanity checks to help a developer ensure +correctness. Some of these features can be enabled on a normal beam +using appropriate configure options. + +There are other types of runtime systems that can be built as well +using the similar steps just described. + + make $TYPE FLAVOR=$FLAVOR + +where $TYPE is opt, gcov, gprof, debug, valgrind, lcnt. These +different beam types are useful for debugging and profiling purposes. + + Support for SMP (Symmetric Multi Processing) -------------------------------------------- |