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Remove import symbols from relo table 

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@1930 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo 2009-06-23 18:55:57 +00:00
parent e9f5886585
commit 6d2642ec8d
2 changed files with 9 additions and 22 deletions
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28
nuttx/binfmt/libnxflat/libnxflat_bind.c
View File

@ -186,9 +186,7 @@ static inline int nxflat_gotrelocs(FAR struct nxflat_loadinfo_s *loadinfo)
DEBUGASSERT(offset >= loadinfo->isize && offset < (loadinfo->isize + loadinfo->dsize));
relocs = (FAR struct nxflat_reloc_s*)(offset - loadinfo->isize + loadinfo->dspace->region);
/* Now, traverse the relocation list of imported symbols and attempt to bind
* each GOT relocation (imported symbols will be handled elsewhere).
*/
/* Now, traverse the relocation list of and bind each GOT relocation. */
ret = OK; /* Assume success */
for (i = 0; i < nrelocs; i++)
@ -223,16 +221,10 @@ static inline int nxflat_gotrelocs(FAR struct nxflat_loadinfo_s *loadinfo)
}
break;
/* NXFLAT_RELOC_TYPE_ABS32 Meaning: Offset refers to a struct nxflat_import_s
* describing a function pointer to be
* imported.
* Fixup: Provide the absolute function address
* in the struct nxflat_import_s instance.
*/
case NXFLAT_RELOC_TYPE_ABS32:
default:
{
/* These will be handled together in nxflat_bindimports */
bdbg("ERROR: Unrecognized relocation type: %d\n", NXFLAT_RELOC_TYPE(reloc.r_info));
result = -EINVAL;
}
break;
}
@ -370,22 +362,18 @@ static inline int nxflat_bindimports(FAR struct nxflat_loadinfo_s *loadinfo,
int nxflat_bind(FAR struct nxflat_loadinfo_s *loadinfo,
FAR const struct symtab_s *exports, int nexports)
{
/* First bind all GOT relocations (omitting absolute symbol relocations) */
/* First bind all GOT relocations */
int ret = nxflat_gotrelocs(loadinfo);
if (ret == OK)
{
/* Then bind the imported symbol, absolute relocations separately.
* There is no particular reason to do these separately over than
* traversing the import list directly is simpler than traversing
* it indirectly through the relocation list.
*/
/* Then bind the imported symbol, absolute relocations separately. */
ret = nxflat_bindimports(loadinfo, exports, nexports);
if (ret == OK)
{
/* Zero the BSS area, trashing the relocations that lived in space
* in the file.
/* Zero the BSS area, trashing the relocations that lived in that
* space in the loaded file.
*/
memset((void*)(loadinfo->dspace->region + loadinfo->datasize),

3
nuttx/include/nxflat.h
View File

@ -176,8 +176,7 @@ struct nxflat_reloc_s
#define NXFLAT_RELOC_TYPE_REL32I 0
#define NXFLAT_RELOC_TYPE_REL32D 1
#define NXFLAT_RELOC_TYPE_ABS32 2
#define NXFLAT_RELOC_TYPE_NUM 3 /* Number of relocation types */
#define NXFLAT_RELOC_TYPE_NUM 2 /* Number of relocation types */
/****************************************************************************
* NXFLAT Imported symbol type