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author | dfr <dfr@FreeBSD.org> | 2000-04-24 17:08:04 +0000 |
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committer | dfr <dfr@FreeBSD.org> | 2000-04-24 17:08:04 +0000 |
commit | f85fa734fac6ee4d477cc35cbd5f6792ee363275 (patch) | |
tree | 9ed563c48f845edd65be62b51a0fafa2dfb53e8c /sys/kern/linker_if.m | |
parent | 83cf368bcb1ed12c47c378e4dc5e357b191f2208 (diff) | |
download | FreeBSD-src-f85fa734fac6ee4d477cc35cbd5f6792ee363275.zip FreeBSD-src-f85fa734fac6ee4d477cc35cbd5f6792ee363275.tar.gz |
* Rewrite to use kobj(9) instead of hard-coded function tables.
* Report link errors to stdout with uprintf() so that the user can see
what went wrong (PR kern/9214).
* Add support code to allow module symbols to be loaded into GDB using
the debugger's "sharedlibrary" command.
Diffstat (limited to 'sys/kern/linker_if.m')
-rw-r--r-- | sys/kern/linker_if.m | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/kern/linker_if.m b/sys/kern/linker_if.m new file mode 100644 index 0000000..e354d12 --- /dev/null +++ b/sys/kern/linker_if.m @@ -0,0 +1,75 @@ +# +# Copyright (c) 2000 Doug Rabson +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +#include <sys/linker.h> + +INTERFACE linker; + +# +# Lookup a symbol in the file's symbol table. If the symbol is not +# found then return ENOENT, otherwise zero. +# +METHOD int lookup_symbol { + linker_file_t file; + const char* name; + c_linker_sym_t* symp; +}; + +METHOD int symbol_values { + linker_file_t file; + c_linker_sym_t sym; + linker_symval_t* valp; +}; + +METHOD int search_symbol { + linker_file_t file; + caddr_t value; + c_linker_sym_t* symp; + long* diffp; +}; + +# +# Unload a file, releasing dependancies and freeing storage. +# +METHOD void unload { + linker_file_t file; +}; + +# +# Load a file, returning the new linker_file_t in *result. If +# the class does not recognise the file type, zero should be +# returned, without modifying *result. If the file is +# recognised, the file should be loaded, *result set to the new +# file and zero returned. If some other error is detected an +# appropriate errno should be returned. +# +STATICMETHOD int load_file { + linker_class_t cls; + const char* filename; + linker_file_t* result; +}; |