48 lines
2.0 KiB
Plaintext
48 lines
2.0 KiB
Plaintext
$NetBSD: README.mknative,v 1.4 2006/11/23 23:33:56 uwe Exp $
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This file describes how to use the cross-compiler to generate the
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native files for GDB on a target platform.
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NOTE: DO NOT RUN "mknative" BY HAND! It requires the Makefile in this
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directory to set up certain environments first.
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Since libc's features change over time, the config.h files can change as a
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result; thus the instructions below are the same no matter whether
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bootstrapping on a cross or native host. This is important: even on a
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"native" host, you should bootstrap the toolchain by building from an
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up-to-date source tree to a $DESTDIR using the exact same instructions.
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In these notes, MACHINE is the $MACHINE of the target. These files can be
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cross-generated. Though a $MACHINE_ARCH all uses the same config files, you
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must pick a specific $MACHINE so that building the requisite bits below will
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work.
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1. Set MKMAINTAINERTOOLS=yes in mk.conf. (Needed so that src/tools/gettext
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gets built, eliciting proper HAVE_*GETTEXT* defns in config.h files.)
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2. Build and install a cross toolchain (via "build.sh -m MACHINE tools").
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3. At top level, do "nbmake-MACHINE do-distrib-dirs obj includes".
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4. In src/gnu/lib/crtstuff4 do "nbmake-MACHINE depend all install"
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5. In src/lib/csu, src/gnu/lib/libgcc4, and src/lib, do
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"nbmake-MACHINE all install".
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6. In src/tools/gdb, do "nbmake-MACHINE obj native-gdb".
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This will do a full configury in ${.OBJDIR}/.native that is a "Canadian"
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cross toolchain (--build reflects the host platform, but --host and
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--target are the target). The result is a tree that would build a
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native-to-NetBSD GDB on a cross host, and mknative pulls glue data
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from this.
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NOTE: this step writes files under src/gnu/usr.bin/gdb6, so you
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need to do it in a writable src tree!
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7. Try out a full build using "nbmake-MACHINE" in
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src/gnu/usr.bin/gdb6; the result should include a native GDB.
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8. If all is well, commit the glue files and directories added to
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src/gnu/usr.bin/gdb6.
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