88 lines
2.3 KiB
Text
88 lines
2.3 KiB
Text
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Build Instructions for PJLIB/PJMEDIA/PJSIP RTEMS Port
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The RTEMS port uses the POSIX abstraction layer at the moment, and has been
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tested with RTEMS 4.6 on i386 target.
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Building RTEMS
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---------------
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I use RTEMS 4.6 on a cygwin host with i386/pc386 as target, but I think it
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should work with different RTEMS versions/hosts/targets.
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RTEMS was built with the following commands:
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$ /opt/src/rtems-4.6.6/configure --enable-cxx --enable-posix --enable-networking --enable-rdbg --enable-tests --enable-rtemsbsp=pc386 --target=i386-rtems
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$ make
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$ make install
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Supported Targets
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-----------------
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At the moment, pjlib supports i386 and mpc860 CPU target. For other targets,
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you would need to create/tweak the appropriate "m-xxx.mak" in "build" directory
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and the corresponding "m_xxx.h" header file in "pj/compat" directory.
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Please refer to pjlib porting guide about how to port PJLIB to new CPU target.
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Building PJLIB/PJMEDIA/PJSIP
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----------------------------
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Use the following steps to build the libraries:
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1. Set RTEMS_LIBRARY_PATH environment variable to point to your BSP directory
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(which is <RTEMS INSTALLATION POINT>/<BOARD SUPPORT PACKAGE>).
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For example (with sh):
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$ export RTEMS_LIBRARY_PATH=/opt/rtems-4.6/i386-rtems/pc386
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2. Unfortunately pjproject's configure script is unable to create "build.mak"
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for cross compilation (but this may change in the future), so we need to
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create "build.mak" manually.
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The file "README-configure" has some info about the variables in "build.mak".
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For example, the "build.mak" for i386 target:
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export MACHINE_NAME := i386
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export OS_NAME := rtems
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export HOST_NAME := mingw
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export CC_NAME := gcc
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export TARGET_NAME := i386-rtems
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export CROSS_COMPILE := i386-rtems-
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3. Put additional CFLAGS or LDFLAGS that are specific to your target in
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"user.mak".
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For example, my "user.mak" looks like this:
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export CFLAGS +=
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export LDFLAGS += -Wl,-Ttext,0x00100000 -Wl,--defsym -Wl,HeapSize=0x400000
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4. Build the libraries:
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$ make dep && make distclean && make
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5. That should be it. The libraries should be in "lib" directory and
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applications in "bin" directory.
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Acknowledgements
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----------------
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Many thanks for Phil Torre <ptorre at zetron dot com>, who did most of the
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initial porting and testing with pjlib etc. All credits go to him.
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