aboutsummaryrefslogtreecommitdiff
path: root/ld/ldgram.y
diff options
context:
space:
mode:
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/ldgram.y
parent5947319ef398728052a22575e1d0de0e94e4220f (diff)
downloadgdb-cdf969539c718acb1f3f031b2c55d5274a538717.zip
gdb-cdf969539c718acb1f3f031b2c55d5274a538717.tar.gz
gdb-cdf969539c718acb1f3f031b2c55d5274a538717.tar.bz2
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/ldgram.y')
-rw-r--r--ld/ldgram.y6
1 files changed, 5 insertions, 1 deletions
diff --git a/ld/ldgram.y b/ld/ldgram.y
index a664258..9973b07 100644
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -141,7 +141,7 @@ static int error_index;
%token DEFINED TARGET_K SEARCH_DIR MAP ENTRY
%token <integer> NEXT
%token SIZEOF ALIGNOF ADDR LOADADDR MAX_K MIN_K
-%token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS
+%token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS NOCROSSREFS_TO
%token ORIGIN FILL
%token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
%token ALIGNMOD AT SUBALIGN HIDDEN PROVIDE PROVIDE_HIDDEN AS_NEEDED
@@ -353,6 +353,10 @@ ifile_p1:
{
lang_add_nocrossref ($3);
}
+ | NOCROSSREFS_TO '(' nocrossref_list ')'
+ {
+ lang_add_nocrossref_to ($3);
+ }
| EXTERN '(' extern_name_list ')'
| INSERT_K AFTER NAME
{ lang_add_insert ($3, 0); }