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This is some documentation I had in my own eglibc and SPE support that I did before Thomas JOURDAN's patches were merged. I adjusted it slightly to correspond correctly to the current code. -- Nate Case <ncase@xes-inc.com> Index: config/libc.in =================================================================== --- config/libc.in (revision 967) +++ config/libc.in (working copy) @@ -23,6 +23,13 @@ select LIBC_SUPPORT_NPTL select LIBC_SUPPORT_LINUXTHREADS depends on EXPERIMENTAL + help + EGLIBC (Embedded GLIBC) is a variant of the standard GNU GLIBC + that is designed to work well on embedded systems. EGLIBC strives + to be source and binary compatible with GLIBC. Its goals include + a reduced footprint, configurable components, and improved + cross-compilation support. EGLIBC also includes some embedded ports + (such as e500/spe) that are normally separate add-ons of GLIBC. if LIBC_EGLIBC source config/libc/eglibc.in Index: arch/powerpc/config.in =================================================================== --- arch/powerpc/config.in (revision 967) +++ arch/powerpc/config.in (working copy) @@ -14,4 +14,13 @@ depends on EXPERIMENTAL default n help - Add support for the Signal Processing Engine. + Add support for the Signal Processing Engine. This will set up + the toolchain so that it supports the SPE ABI extensions. This + mainly targets Freescale e500 processors. + + Setting this option will append "spe" to the end of your target + tuple name (e.g., powerpc-e500v2-linux-gnuspe) so that the gcc + configure/build system will know to include SPE ABI support. + It will also automatically add "-mabi=spe -mspe" to your + TARGET_CFLAGS, and "--enable-e500_double" to your CC_EXTRA_CONFIG, + so you do not need to explicitly add them. -- For unsubscribe information see http://sourceware.org/lists.html#faq
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