[binutils-gdb] x86: Suggest -fPIE when not building shared object
H.J.Lu
hjl@sourceware.org
Wed Apr 17 17:26:00 GMT 2019
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9a7f0679fd3b9815b8eb938bfdad3934b8435419
commit 9a7f0679fd3b9815b8eb938bfdad3934b8435419
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Apr 17 10:22:19 2019 -0700
x86: Suggest -fPIE when not building shared object
When PIC is needed, linker should suggest -fPIE, instead of -fPIC, when
not building shared object.
bfd/
* elf64-x86-64.c (elf_x86_64_need_pic): Suggest -fPIE when not
building shared object.
* elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Likewise.
ld/
* testsuite/ld-i386/i386.exp: Run pr18801a and pr18801b instead
of pr18801.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr18801.d: Removed.
* testsuite/ld-x86-64/pr18801.d: Likewise.
* testsuite/ld-i386/pr18801a.d: New file.
* testsuite/ld-i386/pr18801b.d: Likewise.
* testsuite/ld-x86-64/pr18801a.d: Likewise.
* testsuite/ld-x86-64/pr18801b.d: Likewise.
* testsuite/ld-x86-64/pie2.d: Suggest -fPIE instead of -fPIC.
* testsuite/ld-x86-64/pie2.d: Likewise.
* testsuite/ld-x86-64/pr19719.d: Likewise.
* testsuite/ld-x86-64/pr19807-2a.d: Likewise.
* testsuite/ld-x86-64/pr19969.d: Likewise.
* testsuite/ld-x86-64/pr21997-1a.err: Likewise.
* testsuite/ld-x86-64/pr21997-1b.err: Likewise.
* testsuite/ld-x86-64/pr22001-1a.err: Likewise.
* testsuite/ld-x86-64/pr22001-1b.err: Likewise.
* testsuite/ld-x86-64/pr22791-1.err: Likewise.
Diff:
---
bfd/ChangeLog | 6 ++++++
bfd/elf64-x86-64.c | 21 +++++++++++++++------
bfd/elfxx-x86.c | 3 ++-
ld/ChangeLog | 22 ++++++++++++++++++++++
ld/testsuite/ld-i386/i386.exp | 3 ++-
ld/testsuite/ld-i386/{pr18801.d => pr18801a.d} | 3 ++-
ld/testsuite/ld-i386/pr18801b.d | 4 ++++
ld/testsuite/ld-x86-64/pie2.d | 2 +-
ld/testsuite/ld-x86-64/{pr18801.d => pr18801a.d} | 3 ++-
ld/testsuite/ld-x86-64/pr18801b.d | 4 ++++
ld/testsuite/ld-x86-64/pr19719.d | 2 +-
ld/testsuite/ld-x86-64/pr19807-2a.d | 2 +-
ld/testsuite/ld-x86-64/pr19969.d | 2 +-
ld/testsuite/ld-x86-64/pr21997-1a.err | 2 +-
ld/testsuite/ld-x86-64/pr21997-1b.err | 2 +-
ld/testsuite/ld-x86-64/pr22001-1a.err | 2 +-
ld/testsuite/ld-x86-64/pr22001-1b.err | 2 +-
ld/testsuite/ld-x86-64/pr22791-1.err | 2 +-
ld/testsuite/ld-x86-64/x86-64.exp | 3 ++-
19 files changed, 70 insertions(+), 20 deletions(-)
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 2d1c14f..e61981f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,11 @@
2019-04-17 H.J. Lu <hongjiu.lu@intel.com>
+ * elf64-x86-64.c (elf_x86_64_need_pic): Suggest -fPIE when not
+ building shared object.
+ * elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Likewise.
+
+2019-04-17 H.J. Lu <hongjiu.lu@intel.com>
+
PR ld/24458
* elfxx-x86.h (SYMBOL_DEFINED_NON_SHARED_P): Also check x86
linker_def.
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index 27e23a0..2f69239 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -1422,7 +1422,7 @@ elf_x86_64_need_pic (struct bfd_link_info *info,
v = _("protected symbol ");
else
v = _("symbol ");
- pic = _("; recompile with -fPIC");
+ pic = NULL;
break;
}
@@ -1432,15 +1432,24 @@ elf_x86_64_need_pic (struct bfd_link_info *info,
else
{
name = bfd_elf_sym_name (input_bfd, symtab_hdr, isym, NULL);
- pic = _("; recompile with -fPIC");
+ pic = NULL;
}
if (bfd_link_dll (info))
- object = _("a shared object");
- else if (bfd_link_pie (info))
- object = _("a PIE object");
+ {
+ object = _("a shared object");
+ if (!pic)
+ pic = _("; recompile with -fPIC");
+ }
else
- object = _("a PDE object");
+ {
+ if (bfd_link_pie (info))
+ object = _("a PIE object");
+ else
+ object = _("a PDE object");
+ if (!pic)
+ pic = _("; recompile with -fPIE");
+ }
/* xgettext:c-format */
_bfd_error_handler (_("%pB: relocation %s against %s%s`%s' can "
diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
index e661ad3..78ed41a 100644
--- a/bfd/elfxx-x86.c
+++ b/bfd/elfxx-x86.c
@@ -1381,7 +1381,8 @@ _bfd_x86_elf_size_dynamic_sections (bfd *output_bfd,
{
info->callbacks->einfo
(_("%P%X: read-only segment has dynamic IFUNC relocations;"
- " recompile with -fPIC\n"));
+ " recompile with %s\n"),
+ bfd_link_dll (info) ? "-fPIC" : "-fPIE");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 0fae659..c1632c2 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,27 @@
2019-04-17 H.J. Lu <hongjiu.lu@intel.com>
+ * testsuite/ld-i386/i386.exp: Run pr18801a and pr18801b instead
+ of pr18801.
+ * testsuite/ld-x86-64/x86-64.exp: Likewise.
+ * testsuite/ld-i386/pr18801.d: Removed.
+ * testsuite/ld-x86-64/pr18801.d: Likewise.
+ * testsuite/ld-i386/pr18801a.d: New file.
+ * testsuite/ld-i386/pr18801b.d: Likewise.
+ * testsuite/ld-x86-64/pr18801a.d: Likewise.
+ * testsuite/ld-x86-64/pr18801b.d: Likewise.
+ * testsuite/ld-x86-64/pie2.d: Suggest -fPIE instead of -fPIC.
+ * testsuite/ld-x86-64/pie2.d: Likewise.
+ * testsuite/ld-x86-64/pr19719.d: Likewise.
+ * testsuite/ld-x86-64/pr19807-2a.d: Likewise.
+ * testsuite/ld-x86-64/pr19969.d: Likewise.
+ * testsuite/ld-x86-64/pr21997-1a.err: Likewise.
+ * testsuite/ld-x86-64/pr21997-1b.err: Likewise.
+ * testsuite/ld-x86-64/pr22001-1a.err: Likewise.
+ * testsuite/ld-x86-64/pr22001-1b.err: Likewise.
+ * testsuite/ld-x86-64/pr22791-1.err: Likewise.
+
+2019-04-17 H.J. Lu <hongjiu.lu@intel.com>
+
PR ld/24458
* testsuite/ld-x86-64/x86-64.exp: Run PR ld/24458 tests.
* testsuite/ld-x86-64/pr24458.s: New file.
diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp
index e9c2cfb..9579df6 100644
--- a/ld/testsuite/ld-i386/i386.exp
+++ b/ld/testsuite/ld-i386/i386.exp
@@ -512,7 +512,8 @@ run_dump_test "pr14215"
run_dump_test "pr17057"
run_dump_test "pr17935-1"
run_dump_test "pr17935-2"
-run_dump_test "pr18801"
+run_dump_test "pr18801a"
+run_dump_test "pr18801b"
run_dump_test "pr18815"
run_dump_test "pr19939a"
run_dump_test "pr19939b"
diff --git a/ld/testsuite/ld-i386/pr18801.d b/ld/testsuite/ld-i386/pr18801a.d
similarity index 74%
rename from ld/testsuite/ld-i386/pr18801.d
rename to ld/testsuite/ld-i386/pr18801a.d
index 4bb2efb..f8dc3f1 100644
--- a/ld/testsuite/ld-i386/pr18801.d
+++ b/ld/testsuite/ld-i386/pr18801a.d
@@ -1,3 +1,4 @@
+#source: pr18801.s
#as: --32
#ld: -m elf_i386 -pie
-#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIC
+#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIE
diff --git a/ld/testsuite/ld-i386/pr18801b.d b/ld/testsuite/ld-i386/pr18801b.d
new file mode 100644
index 0000000..f1d5c8d
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr18801b.d
@@ -0,0 +1,4 @@
+#source: pr18801.s
+#as: --32
+#ld: -m elf_i386 -shared
+#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIC
diff --git a/ld/testsuite/ld-x86-64/pie2.d b/ld/testsuite/ld-x86-64/pie2.d
index 9532141..37ca9dd 100644
--- a/ld/testsuite/ld-x86-64/pie2.d
+++ b/ld/testsuite/ld-x86-64/pie2.d
@@ -1,3 +1,3 @@
#as: --64
#ld: -pie -melf_x86_64
-#error: .*relocation R_X86_64_32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIC
+#error: .*relocation R_X86_64_32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIE
diff --git a/ld/testsuite/ld-x86-64/pr18801.d b/ld/testsuite/ld-x86-64/pr18801a.d
similarity index 74%
rename from ld/testsuite/ld-x86-64/pr18801.d
rename to ld/testsuite/ld-x86-64/pr18801a.d
index 459db6b..b527f04 100644
--- a/ld/testsuite/ld-x86-64/pr18801.d
+++ b/ld/testsuite/ld-x86-64/pr18801a.d
@@ -1,3 +1,4 @@
+#source: pr18801.s
#as: --64
#ld: -melf_x86_64 -pie
-#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIC
+#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIE
diff --git a/ld/testsuite/ld-x86-64/pr18801b.d b/ld/testsuite/ld-x86-64/pr18801b.d
new file mode 100644
index 0000000..7cdb2cd
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr18801b.d
@@ -0,0 +1,4 @@
+#source: pr18801.s
+#as: --64
+#ld: -melf_x86_64 -shared
+#error: read-only segment has dynamic IFUNC relocations; recompile with -fPIC
diff --git a/ld/testsuite/ld-x86-64/pr19719.d b/ld/testsuite/ld-x86-64/pr19719.d
index 03cfc15..b5220c7 100644
--- a/ld/testsuite/ld-x86-64/pr19719.d
+++ b/ld/testsuite/ld-x86-64/pr19719.d
@@ -1,3 +1,3 @@
#as: --64
#ld: -pie -melf_x86_64
-#error: .*relocation R_X86_64_32 against undefined symbol `foo' can not be used when making a PIE object; recompile with -fPIC
+#error: .*relocation R_X86_64_32 against undefined symbol `foo' can not be used when making a PIE object; recompile with -fPIE
diff --git a/ld/testsuite/ld-x86-64/pr19807-2a.d b/ld/testsuite/ld-x86-64/pr19807-2a.d
index c99852a..da044e3 100644
--- a/ld/testsuite/ld-x86-64/pr19807-2a.d
+++ b/ld/testsuite/ld-x86-64/pr19807-2a.d
@@ -1,4 +1,4 @@
#source: pr19807-2.s
#as: --64
#ld: -pie -melf_x86_64
-#error: .*relocation R_X86_64_32 against `.data' can not be used when making a PIE object; recompile with -fPIC
+#error: .*relocation R_X86_64_32 against `.data' can not be used when making a PIE object; recompile with -fPIE
diff --git a/ld/testsuite/ld-x86-64/pr19969.d b/ld/testsuite/ld-x86-64/pr19969.d
index 1aea67c..2bca08f 100644
--- a/ld/testsuite/ld-x86-64/pr19969.d
+++ b/ld/testsuite/ld-x86-64/pr19969.d
@@ -1,4 +1,4 @@
#source: pr19969b.S
#as: --64
#ld: -melf_x86_64 tmpdir/pr19969.so
-#error: .*relocation R_X86_64_32 against symbol `foo' can not be used when making a PDE object; recompile with -fPIC
+#error: .*relocation R_X86_64_32 against symbol `foo' can not be used when making a PDE object; recompile with -fPIE
diff --git a/ld/testsuite/ld-x86-64/pr21997-1a.err b/ld/testsuite/ld-x86-64/pr21997-1a.err
index 5d663a3..e57ebd1 100644
--- a/ld/testsuite/ld-x86-64/pr21997-1a.err
+++ b/ld/testsuite/ld-x86-64/pr21997-1a.err
@@ -1,2 +1,2 @@
-.*relocation R_X86_64_PC32 against protected symbol `protected' can not be used when making a P(D|I)E object; recompile with -fPIC
+.*relocation R_X86_64_PC32 against protected symbol `protected' can not be used when making a P(D|I)E object; recompile with -fPIE
#...
diff --git a/ld/testsuite/ld-x86-64/pr21997-1b.err b/ld/testsuite/ld-x86-64/pr21997-1b.err
index 365de67..a99fc1d 100644
--- a/ld/testsuite/ld-x86-64/pr21997-1b.err
+++ b/ld/testsuite/ld-x86-64/pr21997-1b.err
@@ -1,2 +1,2 @@
-.*relocation R_X86_64_32S against protected symbol `protected' can not be used when making a P(D|I)E object; recompile with -fPIC
+.*relocation R_X86_64_32S against protected symbol `protected' can not be used when making a P(D|I)E object; recompile with -fPIE
#...
diff --git a/ld/testsuite/ld-x86-64/pr22001-1a.err b/ld/testsuite/ld-x86-64/pr22001-1a.err
index 640aa07..0cd4170 100644
--- a/ld/testsuite/ld-x86-64/pr22001-1a.err
+++ b/ld/testsuite/ld-x86-64/pr22001-1a.err
@@ -1,2 +1,2 @@
-.*relocation R_X86_64_PC32 against symbol `copy' can not be used when making a P(D|I)E object; recompile with -fPIC
+.*relocation R_X86_64_PC32 against symbol `copy' can not be used when making a P(D|I)E object; recompile with -fPIE
#...
diff --git a/ld/testsuite/ld-x86-64/pr22001-1b.err b/ld/testsuite/ld-x86-64/pr22001-1b.err
index 9617e73..e9a80e3 100644
--- a/ld/testsuite/ld-x86-64/pr22001-1b.err
+++ b/ld/testsuite/ld-x86-64/pr22001-1b.err
@@ -1,2 +1,2 @@
-.*relocation R_X86_64_32S against symbol `copy' can not be used when making a P(D|I)E object; recompile with -fPIC
+.*relocation R_X86_64_32S against symbol `copy' can not be used when making a P(D|I)E object; recompile with -fPIE
#...
diff --git a/ld/testsuite/ld-x86-64/pr22791-1.err b/ld/testsuite/ld-x86-64/pr22791-1.err
index 5500fa5..8c55659 100644
--- a/ld/testsuite/ld-x86-64/pr22791-1.err
+++ b/ld/testsuite/ld-x86-64/pr22791-1.err
@@ -1,2 +1,2 @@
-.*relocation R_X86_64_PC32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIC
+.*relocation R_X86_64_PC32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIE
#...
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index 7ebc461..98aa4b0 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -566,7 +566,8 @@ run_dump_test "pr17935-1"
run_dump_test "pr17935-2"
run_dump_test "pr18160"
run_dump_test "pr18176"
-run_dump_test "pr18801"
+run_dump_test "pr18801a"
+run_dump_test "pr18801b"
run_dump_test "pr18815"
run_dump_test "pr19013"
run_dump_test "pr19013-x32"
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