Accepting request 1290114 from devel:gcc

- Tune for power10 for SLES 16.  [jsc#PED-12029]
- Tune for z15 for SLES 16.  [jsc#PED-253]

OBS-URL: https://build.opensuse.org/request/show/1290114
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/gcc13?expand=0&rev=37

gcc13-bsc1216664.patch

@@ -1,58 +0,0 @@
-From 7562f089a190953b8ef615b90b7b0520e812a930 Mon Sep 17 00:00:00 2001
-From: Richard Biener <rguenther@suse.de>
-Date: Mon, 6 Nov 2023 11:31:40 +0100
-Subject: [PATCH] libstdc++/112351 - deal with __gthread_once failure during
- locale init
-To: gcc-patches@gcc.gnu.org
-
-The following makes the C++98 locale init path follow the way the
-C++11 performs initialization.  This way we deal with pthread_once
-failing, falling back to non-threadsafe initialization which, given we
-initialize from the library, should be serialized by the dynamic
-loader already.
-
-	PR libstdc++/112351
-libstdc++-v3/
-	* src/c++98/locale.cc (locale::facet::_S_initialize_once):
-	Check whether _S_c_locale is already initialized.
-	(locale::facet::_S_get_c_locale): Always perform non-threadsafe
-	init when threadsafe init failed.
----
- libstdc++-v3/src/c++98/locale.cc | 13 ++++++++-----
- 1 file changed, 8 insertions(+), 5 deletions(-)
-
-diff --git a/libstdc++-v3/src/c++98/locale.cc b/libstdc++-v3/src/c++98/locale.cc
-index d308140bab7..1ef0c394cd7 100644
---- a/libstdc++-v3/src/c++98/locale.cc
-+++ b/libstdc++-v3/src/c++98/locale.cc
-@@ -206,6 +206,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
-   void
-   locale::facet::_S_initialize_once()
-   {
-+    // Need to check this because we could get called once from
-+    // _S_get_c_locale() when the program is single-threaded, and then again
-+    // (via __gthread_once) when it's multi-threaded.
-+    if (_S_c_locale)
-+      return;
-+
-     // Initialize the underlying locale model.
-     _S_create_c_locale(_S_c_locale, _S_c_name);
-   }
-@@ -216,12 +222,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
- #ifdef __GTHREADS
-     if (__gthread_active_p())
-       __gthread_once(&_S_once, _S_initialize_once);
--    else
- #endif
--      {
--	if (!_S_c_locale)
--	  _S_initialize_once();
--      }
-+    if (__builtin_expect (!_S_c_locale, 0))
-+      _S_initialize_once();
-     return _S_c_locale;
-   }
- 
--- 
-2.35.3
-

gcc13-rs6000-Adjust-fpatchable-function-entry.patch

@@ -1,265 +0,0 @@
-From 8926dc1cbe8fa3b9ae35bf03ec503bbc40f9cf37 Mon Sep 17 00:00:00 2001
-From: Giuliano Belinassi <gbelinassi@suse.de>
-Date: Thu, 25 Jul 2024 11:54:22 -0300
-Subject: [PATCH] Backport rs6000: Adjust -fpatchable-function-entry* support
- for dual entry
-
-Original message:
-As the discussion in PR112980, although the current
-implementation for -fpatchable-function-entry* conforms
-with the documentation (making N NOPs be consecutive),
-it's inefficient for both kernel and userspace livepatching
-(see comments in PR for the details).
-
-So this patch is to change the current implementation by
-emitting the "before" NOPs before global entry point and
-the "after" NOPs after local entry point.  The new behavior
-would not keep NOPs to be consecutive, so the documentation
-is updated to emphasize this
-
-Backport to gcc-13
-
-Authored-by: Kewen Lin <linkw@linux.ibm.com>
-Backported-by: Giuliano Belinassi <gbelinassi@suse.de>
-
-	PR target/112980
-
-gcc/ChangeLog:
-
-	* config/rs6000/rs6000-logue.cc (rs6000_output_function_prologue):
-	Adjust the handling on patch area emitting with dual entry, remove
-	the restriction on "before" NOPs count, not emit "before" NOPs any
-	more but only emit "after" NOPs.
-	* config/rs6000/rs6000.cc (rs6000_print_patchable_function_entry):
-	Adjust by respecting cfun->machine->stop_patch_area_print.
-	(rs6000_elf_declare_function_name): For ELFv2 with dual entry, set
-	cfun->machine->stop_patch_area_print as true.
-	* config/rs6000/rs6000.h (struct machine_function): Remove member
-	global_entry_emitted, add new member stop_patch_area_print.
-	* doc/invoke.texi (option -fpatchable-function-entry): Adjust the
-	documentation for PowerPC ELFv2 dual entry.
-
-gcc/testsuite/ChangeLog:
-
-	* c-c++-common/patchable_function_entry-default.c: Adjust.
-	* gcc.target/powerpc/pr99888-4.c: Likewise.
-	* gcc.target/powerpc/pr99888-5.c: Likewise.
-	* gcc.target/powerpc/pr99888-6.c: Likewise.
-
-Signed-off-by: Giuliano Belinassi <gbelinassi@suse.de>
----
- gcc/config/rs6000/rs6000-logue.cc             | 40 +++++--------------
- gcc/config/rs6000/rs6000.cc                   | 15 +++++--
- gcc/config/rs6000/rs6000.h                    | 10 +++--
- gcc/doc/invoke.texi                           |  8 ++--
- .../patchable_function_entry-default.c        |  3 --
- gcc/testsuite/gcc.target/powerpc/pr99888-4.c  |  4 +-
- gcc/testsuite/gcc.target/powerpc/pr99888-5.c  |  4 +-
- gcc/testsuite/gcc.target/powerpc/pr99888-6.c  |  4 +-
- 8 files changed, 33 insertions(+), 55 deletions(-)
-
-diff --git a/gcc/config/rs6000/rs6000-logue.cc b/gcc/config/rs6000/rs6000-logue.cc
-index 208404e6864..3835bc943ad 100644
---- a/gcc/config/rs6000/rs6000-logue.cc
-+++ b/gcc/config/rs6000/rs6000-logue.cc
-@@ -4001,43 +4001,21 @@ rs6000_output_function_prologue (FILE *file)
- 	  fprintf (file, "\tadd 2,2,12\n");
- 	}
- 
--      unsigned short patch_area_size = crtl->patch_area_size;
--      unsigned short patch_area_entry = crtl->patch_area_entry;
--      /* Need to emit the patching area.  */
--      if (patch_area_size > 0)
--	{
--	  cfun->machine->global_entry_emitted = true;
--	  /* As ELFv2 ABI shows, the allowable bytes between the global
--	     and local entry points are 0, 4, 8, 16, 32 and 64 when
--	     there is a local entry point.  Considering there are two
--	     non-prefixed instructions for global entry point prologue
--	     (8 bytes), the count for patchable nops before local entry
--	     point would be 2, 6 and 14.  It's possible to support those
--	     other counts of nops by not making a local entry point, but
--	     we don't have clear use cases for them, so leave them
--	     unsupported for now.  */
--	  if (patch_area_entry > 0)
--	    {
--	      if (patch_area_entry != 2
--		  && patch_area_entry != 6
--		  && patch_area_entry != 14)
--		error ("unsupported number of nops before function entry (%u)",
--		       patch_area_entry);
--	      rs6000_print_patchable_function_entry (file, patch_area_entry,
--						     true);
--	      patch_area_size -= patch_area_entry;
--	    }
--	}
--
-       fputs ("\t.localentry\t", file);
-       assemble_name (file, name);
-       fputs (",.-", file);
-       assemble_name (file, name);
-       fputs ("\n", file);
-       /* Emit the nops after local entry.  */
--      if (patch_area_size > 0)
--	rs6000_print_patchable_function_entry (file, patch_area_size,
--					       patch_area_entry == 0);
-+      unsigned short patch_area_size = crtl->patch_area_size;
-+      unsigned short patch_area_entry = crtl->patch_area_entry;
-+      if (patch_area_size > patch_area_entry)
-+	{
-+	  cfun->machine->stop_patch_area_print = false;
-+	  patch_area_size -= patch_area_entry;
-+	  rs6000_print_patchable_function_entry (file, patch_area_size,
-+						 patch_area_entry == 0);
-+	}
-     }
- 
-   else if (rs6000_pcrel_p ())
-diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
-index 2b876c90e6f..a08ed7466dd 100644
---- a/gcc/config/rs6000/rs6000.cc
-+++ b/gcc/config/rs6000/rs6000.cc
-@@ -14936,12 +14936,14 @@ rs6000_print_patchable_function_entry (FILE *file,
- 				       bool record_p)
- {
-   bool global_entry_needed_p = rs6000_global_entry_point_prologue_needed_p ();
--  /* For a function which needs global entry point, we will emit the
--     patchable area before and after local entry point under the control of
--     cfun->machine->global_entry_emitted, see the handling in function
-+  /* For a function which needs global entry point, we will only emit the
-+     patchable area after local entry point under the control of
-+     !cfun->machine->stop_patch_area_print, see the handling in functions
-      rs6000_output_function_prologue.  */
--  if (!global_entry_needed_p || cfun->machine->global_entry_emitted)
-+  if (!cfun->machine->stop_patch_area_print)
-     default_print_patchable_function_entry (file, patch_area_size, record_p);
-+  else
-+    gcc_assert (global_entry_needed_p);
- }
- 
- enum rtx_code
-@@ -21115,6 +21117,11 @@ rs6000_elf_declare_function_name (FILE *file, const char *name, tree decl)
-       fprintf (file, "\t.previous\n");
-     }
-   ASM_OUTPUT_LABEL (file, name);
-+  /* At this time, the "before" NOPs have been already emitted,
-+     let's stop generic code from printing the "after" NOPs and
-+     emit just after local entry later.  */
-+  if (rs6000_global_entry_point_prologue_needed_p ())
-+    cfun->machine->stop_patch_area_print = true;
- }
- 
- static void rs6000_elf_file_end (void) ATTRIBUTE_UNUSED;
-diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
-index 9f02025b0c8..ebe97beb182 100644
---- a/gcc/config/rs6000/rs6000.h
-+++ b/gcc/config/rs6000/rs6000.h
-@@ -2437,10 +2437,12 @@ typedef struct GTY(()) machine_function
-   bool lr_is_wrapped_separately;
-   bool toc_is_wrapped_separately;
-   bool mma_return_type_error;
--  /* Indicate global entry is emitted, only useful when the function requires
--     global entry.  It helps to control the patchable area before and after
--     local entry.  */
--  bool global_entry_emitted;
-+  /* With ELFv2 ABI dual entry points being adopted, generic framework
-+     targetm.asm_out.print_patchable_function_entry would generate "after"
-+     NOPs before local entry, it is wrong.  This flag is to stop it from
-+     printing patch area before local entry, it is only useful when the
-+     function requires dual entry points.  */
-+  bool stop_patch_area_print;
- } machine_function;
- #endif
- 
-diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
-index b17d0cf9341..0cdc5ac8c61 100644
---- a/gcc/doc/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -17449,11 +17449,11 @@ If @code{N=0}, no pad location is recorded.
- The NOP instructions are inserted at---and maybe before, depending on
- @var{M}---the function entry address, even before the prologue.  On
- PowerPC with the ELFv2 ABI, for a function with dual entry points,
--the local entry point is this function entry address.
-+@var{M} NOP instructions are inserted before the global entry point and
-+@var{N} - @var{M} NOP instructions are inserted after the local entry
-+point, which means the NOP instructions may not be consecutive.
- 
--The maximum value of @var{N} and @var{M} is 65535.  On PowerPC with the
--ELFv2 ABI, for a function with dual entry points, the supported values
--for @var{M} are 0, 2, 6 and 14.
-+The maximum value of @var{N} and @var{M} is 65535.
- @end table
- 
- 
-diff --git a/gcc/testsuite/c-c++-common/patchable_function_entry-default.c b/gcc/testsuite/c-c++-common/patchable_function_entry-default.c
-index 3ccbafc87db..899938b4aa3 100644
---- a/gcc/testsuite/c-c++-common/patchable_function_entry-default.c
-+++ b/gcc/testsuite/c-c++-common/patchable_function_entry-default.c
-@@ -1,9 +1,6 @@
- /* { dg-do compile { target { ! { nvptx*-*-* visium-*-* } } } } */
- /* { dg-options "-O2 -fpatchable-function-entry=3,1" } */
- /* { dg-additional-options "-fno-pie" { target sparc*-*-* } } */
--/* See PR99888, one single preceding nop isn't allowed on powerpc_elfv2,
--   so overriding with two preceding nops to make it pass there.  */
--/* { dg-additional-options "-fpatchable-function-entry=3,2" { target powerpc_elfv2 } } */
- /* { dg-final { scan-assembler-times "nop|NOP|SWYM" 3 { target { ! { alpha*-*-* riscv*-*-* } } } } } */
- /* { dg-final { scan-assembler-times "bis" 3 { target alpha*-*-* } } } */
- /* { dg-final { scan-assembler-times "nop\n" 3 { target riscv*-*-* } } } */
-diff --git a/gcc/testsuite/gcc.target/powerpc/pr99888-4.c b/gcc/testsuite/gcc.target/powerpc/pr99888-4.c
-index 00a8d4d316e..6f23f2bb939 100644
---- a/gcc/testsuite/gcc.target/powerpc/pr99888-4.c
-+++ b/gcc/testsuite/gcc.target/powerpc/pr99888-4.c
-@@ -2,12 +2,10 @@
- /* There is no global entry point prologue with pcrel.  */
- /* { dg-options "-mno-pcrel -fpatchable-function-entry=1,1" } */
- 
--/* Verify one error emitted for unexpected 1 nop before local
--   entry.  */
-+/* Verify there is no error with 1 nop before local entry.  */
- 
- extern int a;
- 
- int test (int b) {
-   return a + b;
- }
--/* { dg-error "unsupported number of nops before function entry \\(1\\)" "" { target *-*-* } .-1 } */
-diff --git a/gcc/testsuite/gcc.target/powerpc/pr99888-5.c b/gcc/testsuite/gcc.target/powerpc/pr99888-5.c
-index 39d3b4465f1..13f192ebd20 100644
---- a/gcc/testsuite/gcc.target/powerpc/pr99888-5.c
-+++ b/gcc/testsuite/gcc.target/powerpc/pr99888-5.c
-@@ -2,12 +2,10 @@
- /* There is no global entry point prologue with pcrel.  */
- /* { dg-options "-mno-pcrel -fpatchable-function-entry=7,3" } */
- 
--/* Verify one error emitted for unexpected 3 nops before local
--   entry.  */
-+/* Verify no error emitted for 3 nops before local entry.  */
- 
- extern int a;
- 
- int test (int b) {
-   return a + b;
- }
--/* { dg-error "unsupported number of nops before function entry \\(3\\)" "" { target *-*-* } .-1 } */
-diff --git a/gcc/testsuite/gcc.target/powerpc/pr99888-6.c b/gcc/testsuite/gcc.target/powerpc/pr99888-6.c
-index c6c18dcc7ac..431c69cae9a 100644
---- a/gcc/testsuite/gcc.target/powerpc/pr99888-6.c
-+++ b/gcc/testsuite/gcc.target/powerpc/pr99888-6.c
-@@ -2,8 +2,7 @@
- /* There is no global entry point prologue with pcrel.  */
- /* { dg-options "-mno-pcrel" } */
- 
--/* Verify one error emitted for unexpected 4 nops before local
--   entry.  */
-+/* Verify no error emitted for 4 nops before local entry.  */
- 
- extern int a;
- 
-@@ -11,4 +10,3 @@ __attribute__ ((patchable_function_entry (20, 4)))
- int test (int b) {
-   return a + b;
- }
--/* { dg-error "unsupported number of nops before function entry \\(4\\)" "" { target *-*-* } .-1 } */
--- 
-2.45.2
-