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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-20 19:17:08 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-20 19:17:08 +0000 |
commit | 5bef7b71f4b1487826ec490003cf368ff427a9f8 (patch) | |
tree | 6b6dfc4a49884a3c8cd2e0699366ea39ec14e8ba /nuttx/binfmt | |
parent | 0ad6e847ed22411dc9092e99a01e4199f66e06dc (diff) | |
download | px4-nuttx-5bef7b71f4b1487826ec490003cf368ff427a9f8.tar.gz px4-nuttx-5bef7b71f4b1487826ec490003cf368ff427a9f8.tar.bz2 px4-nuttx-5bef7b71f4b1487826ec490003cf368ff427a9f8.zip |
Add symbol table support
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1917 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/binfmt')
-rw-r--r-- | nuttx/binfmt/Makefile | 8 | ||||
-rw-r--r-- | nuttx/binfmt/symtab_findbyname.c | 97 |
2 files changed, 103 insertions, 2 deletions
diff --git a/nuttx/binfmt/Makefile b/nuttx/binfmt/Makefile index 589964c86..30a2fb260 100644 --- a/nuttx/binfmt/Makefile +++ b/nuttx/binfmt/Makefile @@ -47,12 +47,16 @@ BINFMT_CSRCS = binfmt_globals.c binfmt_register.c binfmt_unregister.c \ binfmt_loadmodule.c binfmt_unloadmodule.c binfmt_execmodule.c \ binfmt_dumpmodule.c +SYMTAB_ASRCS = +SYMTAB_CSRCS = symtab_findbyname.c symtab_findbyvalue.c \ + symtab_findorderedbyname.c symtab_findorderedbyvalue.c + SUBDIRS = libnxflat -ASRCS = $(BINFMT_ASRCS) $(LIBNXFLAT_ASRCS) +ASRCS = $(BINFMT_ASRCS) $(SYMTAB_ASRCS) $(LIBNXFLAT_ASRCS) AOBJS = $(ASRCS:.S=$(OBJEXT)) -CSRCS = $(BINFMT_CSRCS) $(LIBNXFLAT_CSRCS) +CSRCS = $(BINFMT_CSRCS) $(SYMTAB_CSRCS) $(LIBNXFLAT_CSRCS) COBJS = $(CSRCS:.c=$(OBJEXT)) SRCS = $(ASRCS) $(CSRCS) diff --git a/nuttx/binfmt/symtab_findbyname.c b/nuttx/binfmt/symtab_findbyname.c new file mode 100644 index 000000000..c56ac161e --- /dev/null +++ b/nuttx/binfmt/symtab_findbyname.c @@ -0,0 +1,97 @@ +/**************************************************************************** + * binfmt/symtab_findbyname.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 + * COPYRIGHT OWNER 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> + +#include <debug.h> +#include <assert.h> +#include <errno.h> + +#include <nuttx/symtab.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/*********************************************************************** + * Public Functions + ***********************************************************************/ + +/**************************************************************************** + * Name: symtab_findbyname + * + * Description: + * Find the symbol in the symbol table with the matching name. + * This version assumes that table is not ordered with respect to symbol + * name and, hence, access time will be linear with respect to nsyms. + * + * Returned Value: + * A reference to the symbol table entry if an entry with the matching + * name is found; NULL is returned if the entry is not found. + * + ****************************************************************************/ + +FAR const struct symtab_s * +symtab_findbyname(FAR const struct symtab_s *symtab, + FAR const char *name, int nsyms) +{ + DEBUGASSERT(symtab != NULL && name != NULL); + for (; nsyms > 0; symtab++, nsyms--) + { + if (strcmp(name, symtab->sym_name) == 0) + { + return symtab; + } + } + return NULL; +} + |