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-rw-r--r--bfd/ChangeLog6
-rw-r--r--bfd/elflink.c5
-rw-r--r--include/ChangeLog5
-rw-r--r--include/bfdlink.h3
-rw-r--r--ld/ChangeLog16
-rw-r--r--ld/ld.h3
-rw-r--r--ld/ldgram.y2
-rw-r--r--ld/ldlang.c2
-rw-r--r--ld/ldmain.c3
-rw-r--r--ld/lexsup.c2
-rw-r--r--ld/testsuite/ld-elf/pr21903.s15
-rw-r--r--ld/testsuite/ld-elf/pr21903a.d8
-rw-r--r--ld/testsuite/ld-elf/pr21903b.d8
-rw-r--r--ld/testsuite/ld-elf/pr21903c.d3
-rw-r--r--ld/testsuite/ld-elf/pr21903d.d4
-rw-r--r--ld/testsuite/ld-elf/pr21903e.d3
16 files changed, 82 insertions, 6 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 63813e47..7c58a86 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2017-08-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/21903:
+ * elflink.c (elf_link_add_object_symbols): Treat common symbol
+ as undefined for --no-define-common.
+
2017-08-05 Alan Modra <amodra@gmail.com>
* elf32-hppa.c (elf32_hppa_set_gp): Don't require an
diff --git a/bfd/elflink.c b/bfd/elflink.c
index eff53ac..0cc5f87 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -4250,6 +4250,11 @@ error_free_dyn:
override = FALSE;
+ /* Treat common symbol as undefined for --no-define-common. */
+ if (isym->st_shndx == SHN_COMMON
+ && info->inhibit_common_definition)
+ isym->st_shndx = SHN_UNDEF;
+
flags = BSF_NO_FLAGS;
sec = NULL;
value = isym->st_value;
diff --git a/include/ChangeLog b/include/ChangeLog
index 443cab0..332ae93 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/21903:
+ * bfdlink.h (bfd_link_info): Add inhibit_common_definition.
+
2017-07-31 Nick Clifton <nickc@redhat.com>
PR 21850
diff --git a/include/bfdlink.h b/include/bfdlink.h
index e7c7836..2370c0d 100644
--- a/include/bfdlink.h
+++ b/include/bfdlink.h
@@ -489,6 +489,9 @@ struct bfd_link_info
/* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */
unsigned int call_nop_as_suffix : 1;
+ /* TRUE if common symbols should be treated as undefined. */
+ unsigned int inhibit_common_definition : 1;
+
/* The 1-byte NOP for x86 call instruction. */
char call_nop_byte;
diff --git a/ld/ChangeLog b/ld/ChangeLog
index eb002e9..a041f0a 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,19 @@
+2017-08-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/21903:
+ * ld.h (command_line): Remove inhibit_common_definition.
+ * ldgram.y: Replace command_line.inhibit_common_definition with
+ link_info.inhibit_common_definition.
+ * ldlang.c (lang_common): Likewise.
+ * lexsup.c (parse_args): Likewise.
+ * ldmain.c (main): Only allow --no-define-common with -shared.
+ * testsuite/ld-elf/pr21903.s: New file.
+ * testsuite/ld-elf/pr21903a.d: Likewise.
+ * testsuite/ld-elf/pr21903b.d: Likewise.
+ * testsuite/ld-elf/pr21903c.d: Likewise.
+ * testsuite/ld-elf/pr21903d.d: Likewise.
+ * testsuite/ld-elf/pr21903e.d: Likewise.
+
2017-08-05 Alan Modra <amodra@gmail.com>
* testsuite/ld-unique/pr21529.d: Don't xfail hppa.
diff --git a/ld/ld.h b/ld/ld.h
index 162e156..c6fa124 100644
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -132,9 +132,6 @@ typedef struct
/* 1 => assign space to common symbols even if `relocatable_output'. */
bfd_boolean force_common_definition;
- /* 1 => do not assign addresses to common symbols. */
- bfd_boolean inhibit_common_definition;
-
/* If TRUE, build MIPS embedded PIC relocation tables in the output
file. */
bfd_boolean embedded_relocs;
diff --git a/ld/ldgram.y b/ld/ldgram.y
index 771d990..e2998f1 100644
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -339,7 +339,7 @@ ifile_p1:
| FORCE_GROUP_ALLOCATION
{ command_line.force_group_allocation = TRUE ; }
| INHIBIT_COMMON_ALLOCATION
- { command_line.inhibit_common_definition = TRUE ; }
+ { link_info.inhibit_common_definition = TRUE ; }
| INPUT '(' input_list ')'
| GROUP
{ lang_enter_group (); }
diff --git a/ld/ldlang.c b/ld/ldlang.c
index b8b214d..196b2cc 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -6260,7 +6260,7 @@ lang_check (void)
static void
lang_common (void)
{
- if (command_line.inhibit_common_definition)
+ if (link_info.inhibit_common_definition)
return;
if (bfd_link_relocatable (&link_info)
&& !command_line.force_common_definition)
diff --git a/ld/ldmain.c b/ld/ldmain.c
index 5d1a3f4..cb1e2d1 100644
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -395,6 +395,9 @@ main (int argc, char **argv)
if (argc == 2 && version_printed)
xexit (0);
+ if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info))
+ einfo (_("%P%F: --no-define-common may not be used without -shared\n"));
+
if (!lang_has_input_file)
{
if (version_printed || command_line.print_output_format)
diff --git a/ld/lexsup.c b/ld/lexsup.c
index 08106bc..effa277 100644
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -908,7 +908,7 @@ parse_args (unsigned argc, char **argv)
input_flags.dynamic = FALSE;
break;
case OPTION_NO_DEFINE_COMMON:
- command_line.inhibit_common_definition = TRUE;
+ link_info.inhibit_common_definition = TRUE;
break;
case OPTION_NO_DEMANGLE:
demangling = FALSE;
diff --git a/ld/testsuite/ld-elf/pr21903.s b/ld/testsuite/ld-elf/pr21903.s
new file mode 100644
index 0000000..9dbf96c
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903.s
@@ -0,0 +1,15 @@
+ .text
+ .global start /* Used by SH targets. */
+start:
+ .global _start
+_start:
+ .global __start
+__start:
+ .global main /* Used by HPPA targets. */
+main:
+ .dc.a foo
+ .ifdef HPUX
+foo .comm 4
+ .else
+ .comm foo, 4, 4
+ .endif
diff --git a/ld/testsuite/ld-elf/pr21903a.d b/ld/testsuite/ld-elf/pr21903a.d
new file mode 100644
index 0000000..020c561
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903a.d
@@ -0,0 +1,8 @@
+#source: pr21903.s
+#ld: -shared --no-define-common
+#readelf: --dyn-syms
+#target: *-*-linux* *-*-gnu*
+
+#...
+.*: 0+0 +0 +OBJECT +GLOBAL +DEFAULT +UND foo
+#pass
diff --git a/ld/testsuite/ld-elf/pr21903b.d b/ld/testsuite/ld-elf/pr21903b.d
new file mode 100644
index 0000000..decd4f3
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903b.d
@@ -0,0 +1,8 @@
+#source: pr21903.s
+#ld: -shared
+#readelf: --dyn-syms
+#target: *-*-linux* *-*-gnu*
+
+#...
+.*: [0-9a-f]+ +4 +OBJECT +GLOBAL +DEFAULT +[0-9]+ foo
+#pass
diff --git a/ld/testsuite/ld-elf/pr21903c.d b/ld/testsuite/ld-elf/pr21903c.d
new file mode 100644
index 0000000..d3910ec
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903c.d
@@ -0,0 +1,3 @@
+#source: pr21903.s
+#ld: --no-define-common
+#error: --no-define-common may not be used without -shared
diff --git a/ld/testsuite/ld-elf/pr21903d.d b/ld/testsuite/ld-elf/pr21903d.d
new file mode 100644
index 0000000..ec72900
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903d.d
@@ -0,0 +1,4 @@
+#source: pr21903.s
+#ld: --no-define-common -pie
+#target: *-*-linux* *-*-gnu*
+#error: --no-define-common may not be used without -shared
diff --git a/ld/testsuite/ld-elf/pr21903e.d b/ld/testsuite/ld-elf/pr21903e.d
new file mode 100644
index 0000000..894c595
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21903e.d
@@ -0,0 +1,3 @@
+#source: pr21903.s
+#ld: -r --no-define-common
+#error: --no-define-common may not be used without -shared
generated by cgit v1.1 at 2024-07-03 13:32:52 +0000