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authorFangrui Song <maskray@google.com>2021-05-11 23:10:45 -0700
committerAlan Modra <amodra@gmail.com>2021-05-13 12:53:49 +0930
commitcf893b0ef7482ec11df3787772f35e820ef2592a (patch)
tree77832443e8f794f951b402a1824b2151d107f999 /ld
parent4863cddb5079ce34007c5bebc0315b8eddb9ef6d (diff)
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ld: Add -Bno-symbolic
PR 27834 * ldlex.h (enum option_values): Add OPTION_NO_SYMBOLIC. * lexsup.c (ld_options): Add -Bno-symbolic. (parse_args): Handle -Bno-symbolic. * ld.texi: Document -Bno-symbolic. * NEWS: Mention -Bno-symbolic. * testsuite/ld-elf/shared.exp: Add a test.
Diffstat (limited to 'ld')
-rw-r--r--ld/ChangeLog10
-rw-r--r--ld/NEWS2
-rw-r--r--ld/ld.texi5
-rw-r--r--ld/ldlex.h1
-rw-r--r--ld/lexsup.c5
-rw-r--r--ld/testsuite/ld-elf/shared.exp7
6 files changed, 30 insertions, 0 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 77b10eb..e9aae88 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,13 @@
+2021-05-13 Fangrui Song <maskray@google.com>
+
+ PR 27834
+ * ldlex.h (enum option_values): Add OPTION_NO_SYMBOLIC.
+ * lexsup.c (ld_options): Add -Bno-symbolic.
+ (parse_args): Handle -Bno-symbolic.
+ * ld.texi: Document -Bno-symbolic.
+ * NEWS: Mention -Bno-symbolic.
+ * testsuite/ld-elf/shared.exp: Add a test.
+
2021-05-12 Richard Earnshaw <rearnsha@arm.com>
* testsuite/ld-arm/arm-elf.exp (farcall test for v8-m.mainline):
diff --git a/ld/NEWS b/ld/NEWS
index d1aa3b0..a5ed905 100644
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -8,6 +8,8 @@
* Add -z start-stop-gc to disable special treatment of __start_*/__stop_*
references when --gc-sections.
+* Add -Bno-symbolic to cancel -Bsymbolic and -Bsymbolic-functions.
+
Changes in 2.36:
* Add libdep plugin, for linking dependencies of static libraries that
diff --git a/ld/ld.texi b/ld/ld.texi
index fe653da..2987468 100644
--- a/ld/ld.texi
+++ b/ld/ld.texi
@@ -1633,6 +1633,11 @@ symbols to the definition within the shared library, if any.
This option is only meaningful on ELF platforms which support shared
libraries.
+@kindex -Bno-symbolic
+@item -Bno-symbolic
+This option can cancel previously specified @samp{-Bsymbolic} and
+@samp{-Bsymbolic-functions}.
+
@kindex --dynamic-list=@var{dynamic-list-file}
@item --dynamic-list=@var{dynamic-list-file}
Specify the name of a dynamic list file to the linker. This is
diff --git a/ld/ldlex.h b/ld/ldlex.h
index 3ce1ad4..e0f0241 100644
--- a/ld/ldlex.h
+++ b/ld/ldlex.h
@@ -54,6 +54,7 @@ enum option_values
OPTION_OFORMAT,
OPTION_RELAX,
OPTION_NO_RELAX,
+ OPTION_NO_SYMBOLIC,
OPTION_RETAIN_SYMBOLS_FILE,
OPTION_RPATH,
OPTION_RPATH_LINK,
diff --git a/ld/lexsup.c b/ld/lexsup.c
index f6b6b2e..dcb2d9d 100644
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -302,6 +302,8 @@ static const struct ld_option ld_options[] =
'\0', NULL, NULL, ONE_DASH },
{ {"static", no_argument, NULL, OPTION_NON_SHARED},
'\0', NULL, NULL, ONE_DASH },
+ { {"Bno-symbolic", no_argument, NULL, OPTION_NO_SYMBOLIC},
+ '\0', NULL, N_("Don't bind global references locally"), ONE_DASH },
{ {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
'\0', NULL, N_("Bind global references locally"), ONE_DASH },
{ {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
@@ -1301,6 +1303,9 @@ parse_args (unsigned argc, char **argv)
case OPTION_STATS:
config.stats = true;
break;
+ case OPTION_NO_SYMBOLIC:
+ opt_symbolic = symbolic_unset;
+ break;
case OPTION_SYMBOLIC:
opt_symbolic = symbolic;
break;
diff --git a/ld/testsuite/ld-elf/shared.exp b/ld/testsuite/ld-elf/shared.exp
index 6bf4978..d00358e 100644
--- a/ld/testsuite/ld-elf/shared.exp
+++ b/ld/testsuite/ld-elf/shared.exp
@@ -618,6 +618,10 @@ set build_tests {
{"Build libdl2k.so with --export-dynamic-symbol-list=dl2.list and -Bsymbolic"
"-shared -Wl,--export-dynamic-symbol-list=dl2.list,-Bsymbolic" "-fPIC"
{dl2.c dl2xxx.c} {} "libdl2k.so"}
+ # Check that -Bno-symbolic cancels -Bsymbolic.
+ {"Build libdl2l.so with -Bsymbolic -Bno-symbolic and --export-dynamic-symbol=foo"
+ "-shared -Wl,-Bsymbolic,-Bno-symbolic,--export-dynamic-symbol=foo" "-fPIC"
+ {dl2.c dl2xxx.c} {} "libdl2l.so"}
{"Build libdl4a.so with --dynamic-list=dl4.list"
"-shared -Wl,--dynamic-list=dl4.list" "-fPIC"
{dl4.c dl4xxx.c} {} "libdl4a.so"}
@@ -1028,6 +1032,9 @@ set run_tests [list \
[list "Run with libdl2k.so" \
"-Wl,--no-as-needed tmpdir/libdl2k.so" "" \
{dl2main.c} "dl2k" "dl2a.out" ] \
+ [list "Run with libdl2l.so" \
+ "-Wl,--no-as-needed tmpdir/libdl2l.so" "" \
+ {dl2main.c} "dl2l" "dl2b.out" ] \
[list "Run with libdl4a.so" \
"-Wl,--no-as-needed tmpdir/libdl4a.so" "" \
{dl4main.c} "dl4a" "dl4a.out" "-fPIC"] \