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authorMatthew Fortune <matthew.fortune@imgtec.com>2016-04-14 11:49:53 +0100
committerMatthew Fortune <matthew.fortune@imgtec.com>2016-04-18 12:45:46 +0100
commitcdf969539c718acb1f3f031b2c55d5274a538717 (patch)
tree003ffa5726fcc2217dc4aafcdeb1efa46ff88b04 /ld/ldlang.h
parent5947319ef398728052a22575e1d0de0e94e4220f (diff)
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Add new NOCROSSREFS_TO linker script command
NOCROSSREFS_TO is similar to the existing NOCROSSREFS command but only checks one direction of cross referencing. ld/ChangeLog * ld.texinfo: Document NOCROSSREFS_TO script command. * ldlang.h (struct lang_nocrossrefs): Add onlyfirst field. (lang_add_nocrossref_to): New prototype. * ldcref.c (check_local_sym_xref): Use onlyfirst to only look for symbols defined in the first section. (check_nocrossref): Likewise. * ldgram.y (NOCROSSREFS_TO): New script command. * ldlang.c (lang_add_nocrossref): Set onlyfirst to FALSE. (lang_add_nocrossref_to): New function. * ldlex.l (NOCROSSREFS_TO): New token. * NEWS: Mention NOCROSSREFS_TO. * testsuite/ld-scripts/cross4.t: New file. * testsuite/ld-scripts/cross5.t: Likewise. * testsuite/ld-scripts/cross6.t: Likewise. * testsuite/ld-scripts/cross7.t: Likewise. * testsuite/ld-scripts/crossref.exp: Run 4 new NOCROSSREFS_TO tests.
Diffstat (limited to 'ld/ldlang.h')
-rw-r--r--ld/ldlang.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/ld/ldlang.h b/ld/ldlang.h
index 65d768b..0cb147c 100644
--- a/ld/ldlang.h
+++ b/ld/ldlang.h
@@ -464,6 +464,7 @@ struct lang_nocrossrefs
{
struct lang_nocrossrefs *next;
lang_nocrossref_type *list;
+ bfd_boolean onlyfirst;
};
/* This structure is used to hold a list of input section names which
@@ -654,6 +655,8 @@ extern void lang_new_phdr
etree_type *);
extern void lang_add_nocrossref
(lang_nocrossref_type *);
+extern void lang_add_nocrossref_to
+ (lang_nocrossref_type *);
extern void lang_enter_overlay
(etree_type *, etree_type *);
extern void lang_enter_overlay_section