H.J,,
Unfortunately, the answer is yes. This patch still introduces
regressions in the g++ test suite.l These are all some form of...
Executing on host:
/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/gcc/testsuite/g++/../../xg++
-B/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/gcc/testsuite/g++/../../
/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/gcc/testsuite/g++.dg/abi/empty7.C
-fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++
-I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/include/x86_64-apple-darwin14.3.0
-I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/include
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/libsupc++
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/include/backward
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/testsuite/util
-fmessage-length=0 -std=gnu++98 -fabi-version=0
-L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-B/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-multiply_defined suppress -lm -m32 -o ./empty7.exe (timeout =
300)
spawn -ignore SIGHUP
/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/gcc/testsuite/g++/../../xg++
-B/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/gcc/testsuite/g++/../../
/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/gcc/testsuite/g++.dg/abi/empty7.C
-fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++
-I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/include/x86_64-apple-darwin14.3.0
-I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/include
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/libsupc++
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/include/backward
-I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/libstdc++-v3/testsuite/util
-fmessage-length=0 -std=gnu++98 -fabi-version=0
-L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-B/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libstdc++-v3/src/.libs
-multiply_defined suppress -lm -m32 -o ./empty7.exe^M
ld: warning: direct access in S2::S2() to global weak symbol vtable
for S2 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol VTT
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol VTT
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S8::S8() to global weak symbol vtable
for S8 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
output is:
ld: warning: direct access in S2::S2() to global weak symbol vtable
for S2 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol vtable
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol VTT
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S5::S5() to global weak symbol VTT
for S5 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
ld: warning: direct access in S8::S8() to global weak symbol vtable
for S8 means the weak symbol cannot be overridden at runtime. This was
likely caused by different translation units being compiled with
different visibility settings.^M
FAIL: g++.dg/abi/empty7.C -std=gnu++98 (test for excess errors)
Darwin has really twitchy support weak symbol support so any major
rewrite will definitely be stage 1 material and likely require us to
contact the darwin linker developer at Apple for a consultation on the
meaning of these linker warnings.
Jack
On Sat, Feb 7, 2015 at 7:27 AM, H.J. Lu <hjl.to...@gmail.com> wrote:
> On Sat, Feb 07, 2015 at 03:28:38AM -0500, Jack Howarth wrote:
>> H.J.,
>> The new patch bootstraps okay on x86_64-apple-darwin14 but I
>
> Does it cause any regressions on x86_64-apple-darwin14?
>
>> discovered that you need a small adjustment in the deja-gnu
>> statements...
>>
>> --- /Users/howarth/gcc-5-20150206/gcc/testsuite/gcc.dg/visibility-22.c
>> 2015-02-06 21:45:04.000000000 -0500
>> +++
>> /sw/src/fink.build/gcc50-5.0.0-1000/gcc-5-20150206/gcc/testsuite/gcc.dg/visibility-22.c
>> 2015-02-07 03:24:42.000000000 -0500
>> @@ -8,9 +8,9 @@
>> /* For kernel modules and static RTPs, the loader treats undefined weak
>> symbols in the same way as undefined strong symbols. The test
>> therefore fails to load, so skip it. */
>> +/* { dg-options "-fPIC" { target fpic } } */
>> /* { dg-additional-options "-Wl,-undefined,dynamic_lookup" { target
>> *-*-darwin* } } */
>> /* { dg-additional-options "-Wl,-flat_namespace" { target
>> *-*-darwin[89]* } } */
>> -/* { dg-options "-fPIC" { target fpic } } */
>>
>> extern void foo () __attribute__((weak,visibility("hidden")));
>> int
>>
>> If you don't define a dg-options line first, the dg-additional-options
>> lines have no effect.
>> Jack
>
> Here is the updated patch.
>
> H.J.
> ---
> From 8e61705db8177d41fac45dbeffa4faf6163d4c94 Mon Sep 17 00:00:00 2001
> From: "H.J. Lu" <hjl.to...@gmail.com>
> Date: Thu, 5 Feb 2015 14:28:58 -0800
> Subject: [PATCH] Handle symbol visibility/locality for PIE/PIC
>
> If a hidden weak symbol isn't defined in the TU, we can't assume it will
> be defined in another TU at link time. It makes a difference in code
> generation when compiling for PIC. If we assume that a hidden weak
> undefined symbol is local, the address checking may be optimized out and
> leads to the wrong code. This means that a symbol with user specified
> visibility is local only if it is locally resolved or defined, not weak
> or not compiling for PIC. When symbol visibility is specified in the
> source, we should always output symbol visibility even if symbol isn't
> local to the TU.
>
> If a global data symbol is defined in the TU, it is always local to the
> executable, regardless if it is a common symbol or not. If we aren't
> compiling for shared library, locally defined global data symbol binds
> locally.
>
> gcc/
>
> PR rtl-optimization/32219
> * cgraphunit.c (varpool_node::finalize_decl): Set definition
> first before calling notice_global_symbol so that it is
> available to notice_global_symbol.
> * varasm.c (default_binds_local_p_1): Resolve defined data
> symbol locally if not building shared library. Resolve symbol
> with user specified visibility locally only if it is locally
> resolved or defined, not weak or not compiling for PIC.
> (default_elf_asm_output_external): Always output visibility
> specified in the source.
> * config/darwin-protos.h (darwin_output_external): New.
> * config/darwin.c (darwin_output_external): Likewise.
> * config/darwin.h (ASM_OUTPUT_EXTERNAL): Likewise.
>
> gcc/testsuite/
>
> PR rtl-optimization/32219
> * gcc.dg/visibility-22.c: New test.
> * gcc.dg/visibility-23.c: Likewise.
> * gcc.target/i386/pr32219-1.c: Likewise.
> * gcc.target/i386/pr32219-2.c: Likewise.
> * gcc.target/i386/pr32219-3.c: Likewise.
> * gcc.target/i386/pr32219-4.c: Likewise.
> * gcc.target/i386/pr32219-5.c: Likewise.
> * gcc.target/i386/pr32219-6.c: Likewise.
> * gcc.target/i386/pr32219-7.c: Likewise.
> * gcc.target/i386/pr32219-8.c: Likewise.
> * gcc.target/i386/pr64317.c: Expect GOTOFF relocation instead
> of GOT relocation.
> ---
> gcc/cgraphunit.c | 4 +++-
> gcc/config/darwin-protos.h | 1 +
> gcc/config/darwin.c | 15 +++++++++++++
> gcc/config/darwin.h | 9 ++++++++
> gcc/testsuite/gcc.dg/visibility-22.c | 22 +++++++++++++++++++
> gcc/testsuite/gcc.dg/visibility-23.c | 14 +++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-1.c | 16 ++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-2.c | 16 ++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-3.c | 17 +++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-4.c | 17 +++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-5.c | 16 ++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-6.c | 16 ++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-7.c | 17 +++++++++++++++
> gcc/testsuite/gcc.target/i386/pr32219-8.c | 17 +++++++++++++++
> gcc/testsuite/gcc.target/i386/pr64317.c | 2 +-
> gcc/varasm.c | 35
> ++++++++++++++++++-------------
> 16 files changed, 217 insertions(+), 17 deletions(-)
> create mode 100644 gcc/testsuite/gcc.dg/visibility-22.c
> create mode 100644 gcc/testsuite/gcc.dg/visibility-23.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-1.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-2.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-3.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-4.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-5.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-6.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-7.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr32219-8.c
>
> diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
> index 35b244e..71367a3 100644
> --- a/gcc/cgraphunit.c
> +++ b/gcc/cgraphunit.c
> @@ -792,8 +792,10 @@ varpool_node::finalize_decl (tree decl)
>
> if (node->definition)
> return;
> - notice_global_symbol (decl);
> + /* Set definition first before calling notice_global_symbol so that
> + it is available to notice_global_symbol. */
> node->definition = true;
> + notice_global_symbol (decl);
> if (TREE_THIS_VOLATILE (decl) || DECL_PRESERVE_P (decl)
> /* Traditionally we do not eliminate static variables when not
> optimizing and when not doing toplevel reoder. */
> diff --git a/gcc/config/darwin-protos.h b/gcc/config/darwin-protos.h
> index 249b9c1..10a77fc 100644
> --- a/gcc/config/darwin-protos.h
> +++ b/gcc/config/darwin-protos.h
> @@ -89,6 +89,7 @@ extern tree darwin_handle_weak_import_attribute (tree
> *node, tree name,
> extern void machopic_output_stub (FILE *, const char *, const char *);
> extern void darwin_globalize_label (FILE *, const char *);
> extern void darwin_assemble_visibility (tree, int);
> +extern void darwin_output_external (FILE *, tree, const char *name);
>
> extern void darwin_asm_output_dwarf_delta (FILE *, int, const char *,
> const char *);
> diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c
> index 40804b8..5025ef7 100644
> --- a/gcc/config/darwin.c
> +++ b/gcc/config/darwin.c
> @@ -2762,6 +2762,21 @@ darwin_assemble_visibility (tree decl, int vis)
> "not supported in this configuration; ignored");
> }
>
> +/* Emit text to declare externally defined symbols. Used to support
> + undefined hidden visibility with Darwin's private extern feature. */
> +
> +void
> +darwin_output_external (FILE *file ATTRIBUTE_UNUSED, tree decl,
> + const char *name ATTRIBUTE_UNUSED)
> +{
> + /* We output the name if and only if TREE_SYMBOL_REFERENCED is set and
> + visibility is specified in the source in order to avoid putting out
> + names that are never really used. */
> + if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))
> + && DECL_VISIBILITY_SPECIFIED (decl))
> + darwin_assemble_visibility (decl, DECL_VISIBILITY (decl));
> +}
> +
> /* vec used by darwin_asm_dwarf_section.
> Maybe a hash tab would be better here - but the intention is that this is
> a very short list (fewer than 16 items) and each entry should (ideally,
> diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
> index b61dbb5..c9a1b34 100644
> --- a/gcc/config/darwin.h
> +++ b/gcc/config/darwin.h
> @@ -700,6 +700,15 @@ extern GTY(()) section *
> darwin_sections[NUM_DARWIN_SECTIONS];
> #undef TARGET_ASM_ASSEMBLE_VISIBILITY
> #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
>
> +/* A C statement (sans semicolon) to output to the stdio stream STREAM
> + any text necessary for declaring the name of an external symbol
> + named NAME which is referenced in this compilation but not defined.
> + Used to support undefined hidden visibility with Darwin's private
> + extern feature. */
> +
> +#undef ASM_OUTPUT_EXTERNAL
> +#define ASM_OUTPUT_EXTERNAL darwin_output_external
> +
> /* Extra attributes for Darwin. */
> #define SUBTARGET_ATTRIBUTE_TABLE \
> /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler,
> \
> diff --git a/gcc/testsuite/gcc.dg/visibility-22.c
> b/gcc/testsuite/gcc.dg/visibility-22.c
> new file mode 100644
> index 0000000..a118a6e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/visibility-22.c
> @@ -0,0 +1,22 @@
> +/* PR target/32219 */
> +/* { dg-do run } */
> +/* { dg-require-visibility "" } */
> +/* { dg-options "-O2 -fPIC" { target fpic } } */
> +/* This test requires support for undefined weak symbols. This support
> + is not available on hppa*-*-hpux*. The test is skipped rather than
> + xfailed to suppress the warning that would otherwise arise. */
> +/* { dg-skip-if "" { "hppa*-*-hpux*" "*-*-aix*" } "*" { "" } } */
> +/* For kernel modules and static RTPs, the loader treats undefined weak
> + symbols in the same way as undefined strong symbols. The test
> + therefore fails to load, so skip it. */
> +/* { dg-additional-options "-Wl,-undefined,dynamic_lookup" { target
> *-*-darwin* } } */
> +/* { dg-additional-options "-Wl,-flat_namespace" { target *-*-darwin[89]* }
> } */
> +
> +extern void foo () __attribute__((weak,visibility("hidden")));
> +int
> +main()
> +{
> + if (foo)
> + foo ();
> + return 0;
> +}
> diff --git a/gcc/testsuite/gcc.dg/visibility-23.c
> b/gcc/testsuite/gcc.dg/visibility-23.c
> new file mode 100644
> index 0000000..347578e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/visibility-23.c
> @@ -0,0 +1,14 @@
> +/* PR target/32219 */
> +/* { dg-do compile } */
> +/* { dg-require-visibility "" } */
> +/* { dg-final { scan-hidden "foo" } } */
> +/* { dg-options "-O2 -fPIC" { target fpic } } */
> +
> +extern void foo () __attribute__((weak,visibility("hidden")));
> +int
> +main()
> +{
> + if (foo)
> + foo ();
> + return 0;
> +}
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-1.c
> b/gcc/testsuite/gcc.target/i386/pr32219-1.c
> new file mode 100644
> index 0000000..5bd80a0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-1.c
> @@ -0,0 +1,16 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpie" } */
> +
> +/* Common symbol with -fpie. */
> +int xxx;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx\\(%rip\\), %eax" { target { !
> ia32 } } } } */
> +/* { dg-final { scan-assembler-not "xxx@GOTPCREL" { target { ! ia32 } } } }
> */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax"
> { target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-2.c
> b/gcc/testsuite/gcc.target/i386/pr32219-2.c
> new file mode 100644
> index 0000000..0cf2eb5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-2.c
> @@ -0,0 +1,16 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpic" } */
> +
> +/* Common symbol with -fpic. */
> +int xxx;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx\\(%rip\\), %eax" { target
> { ! ia32 } } } } */
> +/* { dg-final { scan-assembler "xxx@GOTPCREL" { target { ! ia32 } } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\),
> %eax" { target ia32 } } } */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-3.c
> b/gcc/testsuite/gcc.target/i386/pr32219-3.c
> new file mode 100644
> index 0000000..911f2a5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-3.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpie" } */
> +
> +/* Weak common symbol with -fpie. */
> +__attribute__((weak))
> +int xxx;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx\\(%rip\\), %eax" { target { !
> ia32 } } } } */
> +/* { dg-final { scan-assembler-not "xxx@GOTPCREL" { target { ! ia32 } } } }
> */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax"
> { target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-4.c
> b/gcc/testsuite/gcc.target/i386/pr32219-4.c
> new file mode 100644
> index 0000000..3d43439
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-4.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpic" } */
> +
> +/* Weak common symbol with -fpic. */
> +__attribute__((weak))
> +int xxx;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx\\(%rip\\), %eax" { target
> { ! ia32 } } } } */
> +/* { dg-final { scan-assembler "xxx@GOTPCREL" { target { ! ia32 } } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\),
> %eax" { target ia32 } } } */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-5.c
> b/gcc/testsuite/gcc.target/i386/pr32219-5.c
> new file mode 100644
> index 0000000..ee7442e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-5.c
> @@ -0,0 +1,16 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpie" } */
> +
> +/* Initialized symbol with -fpie. */
> +int xxx = -1;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx\\(%rip\\), %eax" { target { !
> ia32 } } } } */
> +/* { dg-final { scan-assembler-not "xxx@GOTPCREL" { target { ! ia32 } } } }
> */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax"
> { target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-6.c
> b/gcc/testsuite/gcc.target/i386/pr32219-6.c
> new file mode 100644
> index 0000000..f261433
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-6.c
> @@ -0,0 +1,16 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpic" } */
> +
> +/* Initialized symbol with -fpic. */
> +int xxx = -1;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx\\(%rip\\), %eax" { target
> { ! ia32 } } } } */
> +/* { dg-final { scan-assembler "xxx@GOTPCREL" { target { ! ia32 } } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\),
> %eax" { target ia32 } } } */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-7.c
> b/gcc/testsuite/gcc.target/i386/pr32219-7.c
> new file mode 100644
> index 0000000..12aaf72
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-7.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpie" } */
> +
> +/* Weak initialized symbol with -fpie. */
> +__attribute__((weak))
> +int xxx = -1;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx\\(%rip\\), %eax" { target { !
> ia32 } } } } */
> +/* { dg-final { scan-assembler-not "xxx@GOTPCREL" { target { ! ia32 } } } }
> */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax"
> { target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr32219-8.c
> b/gcc/testsuite/gcc.target/i386/pr32219-8.c
> new file mode 100644
> index 0000000..2e4fba0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr32219-8.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile { target *-*-linux* } } */
> +/* { dg-options "-O2 -fpic" } */
> +
> +/* Weak initialized symbol with -fpic. */
> +__attribute__((weak))
> +int xxx = -1;
> +
> +int
> +foo ()
> +{
> + return xxx;
> +}
> +
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx\\(%rip\\), %eax" { target
> { ! ia32 } } } } */
> +/* { dg-final { scan-assembler "xxx@GOTPCREL" { target { ! ia32 } } } } */
> +/* { dg-final { scan-assembler-not "movl\[ \t\]xxx@GOTOFF\\(%\[^,\]*\\),
> %eax" { target ia32 } } } */
> +/* { dg-final { scan-assembler "movl\[ \t\]xxx@GOT\\(%\[^,\]*\\), %eax" {
> target ia32 } } } */
> diff --git a/gcc/testsuite/gcc.target/i386/pr64317.c
> b/gcc/testsuite/gcc.target/i386/pr64317.c
> index 33f5b5d..32969fc 100644
> --- a/gcc/testsuite/gcc.target/i386/pr64317.c
> +++ b/gcc/testsuite/gcc.target/i386/pr64317.c
> @@ -1,7 +1,7 @@
> /* { dg-do compile { target { *-*-linux* && ia32 } } } */
> /* { dg-options "-O2 -fpie" } */
> /* { dg-final { scan-assembler "addl\[ \\t\]+\[$\]_GLOBAL_OFFSET_TABLE_,
> %ebx" } } */
> -/* { dg-final { scan-assembler "movl\[ \\t\]+c@GOT\[(\]%ebx\[)\]" } } */
> +/* { dg-final { scan-assembler "movl\[ \\t\]+c@GOTOFF\[(\]%ebx\[)\]" } } */
> /* { dg-final { scan-assembler-not "movl\[ \\t\]+\[0-9]+\[(\]%esp\[)\],
> %ebx" } } */
> long c;
>
> diff --git a/gcc/varasm.c b/gcc/varasm.c
> index eb65b1f..f7c13af 100644
> --- a/gcc/varasm.c
> +++ b/gcc/varasm.c
> @@ -6826,11 +6826,17 @@ default_binds_local_p_1 (const_tree exp, int shlib)
> && (TREE_STATIC (exp) || DECL_EXTERNAL (exp)))
> {
> varpool_node *vnode = varpool_node::get (exp);
> - if (vnode && (resolution_local_p (vnode->resolution) ||
> vnode->in_other_partition))
> - resolved_locally = true;
> - if (vnode
> - && resolution_to_local_definition_p (vnode->resolution))
> - resolved_to_local_def = true;
> + /* If not building shared library, common or initialized symbols
> + are also resolved locally, regardless they are weak or not. */
> + if (vnode)
> + {
> + if ((!shlib && vnode->definition)
> + || vnode->in_other_partition
> + || resolution_local_p (vnode->resolution))
> + resolved_locally = true;
> + if (resolution_to_local_definition_p (vnode->resolution))
> + resolved_to_local_def = true;
> + }
> }
> else if (TREE_CODE (exp) == FUNCTION_DECL && TREE_PUBLIC (exp))
> {
> @@ -6859,9 +6865,14 @@ default_binds_local_p_1 (const_tree exp, int shlib)
> else if (! TREE_PUBLIC (exp))
> local_p = true;
> /* A variable is local if the user has said explicitly that it will
> - be. */
> + be and it is resolved or defined locally, not compiling for PIC or
> + not weak. */
> else if ((DECL_VISIBILITY_SPECIFIED (exp)
> || resolved_to_local_def)
> + && (resolved_locally
> + || !flag_pic
> + || !DECL_EXTERNAL (exp)
> + || !DECL_WEAK (exp))
> && DECL_VISIBILITY (exp) != VISIBILITY_DEFAULT)
> local_p = true;
> /* Variables defined outside this object might not be local. */
> @@ -6880,13 +6891,6 @@ default_binds_local_p_1 (const_tree exp, int shlib)
> symbols resolved from other modules. */
> else if (shlib)
> local_p = false;
> - /* Uninitialized COMMON variable may be unified with symbols
> - resolved from other modules. */
> - else if (DECL_COMMON (exp)
> - && !resolved_locally
> - && (DECL_INITIAL (exp) == NULL
> - || (!in_lto_p && DECL_INITIAL (exp) == error_mark_node)))
> - local_p = false;
> /* Otherwise we're left with initialized (or non-common) global data
> which is of necessity defined locally. */
> else
> @@ -7445,9 +7449,10 @@ default_elf_asm_output_external (FILE *file
> ATTRIBUTE_UNUSED,
> {
> /* We output the name if and only if TREE_SYMBOL_REFERENCED is
> set in order to avoid putting out names that are never really
> - used. */
> + used. Always output visibility specified in the source. */
> if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))
> - && targetm.binds_local_p (decl))
> + && (DECL_VISIBILITY_SPECIFIED (decl)
> + || targetm.binds_local_p (decl)))
> maybe_assemble_visibility (decl);
> }
>
> --
> 2.1.0
>
