Accepting request 854204 from home:tomdevries:branches:devel:gcc-gdb-sle-15-changes

- Backport from master [jsc#13656]:
  * gdb-powerpc-remove-512-bytes-region-limit-if-2nd-dawr-is-avaliable.patch
- Require 8GB diskspace for x86_64.

OBS-URL: https://build.opensuse.org/request/show/854204
OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=267

_constraints

@@ -10,5 +10,15 @@
       </disk>
     </hardware>
   </overwrite>
+  <overwrite>
+    <conditions>
+      <arch>x86_64</arch>
+    </conditions>
+    <hardware>
+      <disk>
+        <size unit="G">8</size>
+      </disk>
+    </hardware>
+  </overwrite>
 </constraints>
 

gdb-powerpc-remove-512-bytes-region-limit-if-2nd-dawr-is-avaliable.patch

@@ -0,0 +1,72 @@
+PowerPC remove 512 bytes region limit if 2nd DAWR is avaliable.
+
+Power 10 introduces the 2nd DAWR (second watchpoint) and also removed
+a restriction that limit the watch region to 512 bytes.
+
+2020-11-08  Rogerio A. Cardoso  <rcardoso@linux.ibm.com>
+
+/gdb
+
+	* ppc-linux-nat.c: (PPC_DEBUG_FEATURE_DATA_BP_ARCH_31): New define.
+	(region_ok_for_hw_watchpoint): Check if 2nd DAWR is avaliable before
+	set region.
+
+---
+ gdb/ppc-linux-nat.c | 26 ++++++++++++++++++--------
+ 2 files changed, 23 insertions(+), 8 deletions(-)
+
+Index: gdb-10.1/gdb/ppc-linux-nat.c
+===================================================================
+--- gdb-10.1.orig/gdb/ppc-linux-nat.c
++++ gdb-10.1/gdb/ppc-linux-nat.c
+@@ -138,6 +138,11 @@ struct ppc_hw_breakpoint
+ #define PPC_DEBUG_FEATURE_DATA_BP_DAWR	0x10
+ #endif /* PPC_DEBUG_FEATURE_DATA_BP_DAWR */
+ 
++/* Feature defined on Linux kernel v5.1: Second watchpoint support.  */
++#ifndef PPC_DEBUG_FEATURE_DATA_BP_ARCH_31
++#define PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 0x20
++#endif /* PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 */
++
+ /* The version of the PowerPC HWDEBUG kernel interface that we will use, if
+    available.  */
+ #define PPC_DEBUG_CURRENT_VERSION 1
+@@ -2108,9 +2113,10 @@ ppc_linux_nat_target::region_ok_for_hw_w
+      watchpoints.  */
+   if (m_dreg_interface.hwdebug_p ())
+     {
+-      int region_size;
+       const struct ppc_debug_info &hwdebug_info = (m_dreg_interface
+ 						   .hwdebug_info ());
++      int region_size = hwdebug_info.data_bp_alignment;
++      int region_align = region_size;
+ 
+       /* Embedded DAC-based processors, like the PowerPC 440 have ranged
+ 	 watchpoints and can watch any access within an arbitrary memory
+@@ -2122,15 +2128,19 @@ ppc_linux_nat_target::region_ok_for_hw_w
+ 	return 2;
+       /* Check if the processor provides DAWR interface.  */
+       if (hwdebug_info.features & PPC_DEBUG_FEATURE_DATA_BP_DAWR)
+-	/* DAWR interface allows to watch up to 512 byte wide ranges which
+-	   can't cross a 512 byte boundary.  */
+-	region_size = 512;
+-      else
+-	region_size = hwdebug_info.data_bp_alignment;
++	{
++	  /* DAWR interface allows to watch up to 512 byte wide ranges.  */
++	  region_size = 512;
++	  /* DAWR interface allows to watch up to 512 byte wide ranges which
++	     can't cross a 512 byte bondary on machines that doesn't have a
++	     second DAWR (P9 or less).  */
++	  if (!(hwdebug_info.features & PPC_DEBUG_FEATURE_DATA_BP_ARCH_31))
++	    region_align = 512;
++	}
+       /* Server processors provide one hardware watchpoint and addr+len should
+          fall in the watchable region provided by the ptrace interface.  */
+-      if (region_size
+-	  && (addr + len > (addr & ~(region_size - 1)) + region_size))
++      if (region_align
++	  && (addr + len > (addr & ~(region_align - 1)) + region_size))
+ 	return 0;
+     }
+   /* addr+len must fall in the 8 byte watchable region for DABR-based

gdb.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Dec  9 07:56:36 UTC 2020 - Tom de Vries <tdevries@suse.com>
+
+- Backport from master [jsc#13656]:
+  * gdb-powerpc-remove-512-bytes-region-limit-if-2nd-dawr-is-avaliable.patch
+- Require 8GB diskspace for x86_64.
+
 -------------------------------------------------------------------
 Mon Nov 30 15:43:58 UTC 2020 - Tom de Vries <tdevries@suse.com>
 

gdb.spec

@@ -307,6 +307,7 @@ Patch2006:      gdb-symtab-use-early-continue-in-find_pc_sect_compunit.patch
 Patch2007:      gdb-fix-section-matching-in-find_pc_sect_compunit.patch
 Patch2008:      gdb-symtab-fix-language-of-frame-without-debug-info.patch
 Patch2009:      gdb-testsuite-fix-failure-in-gdb-base-step-over-no-symbols-exp.patch
+Patch2010:      gdb-powerpc-remove-512-bytes-region-limit-if-2nd-dawr-is-avaliable.patch
 
 # Testsuite patches
 
@@ -714,6 +715,7 @@ find -name "*.info*"|xargs rm -f
 %patch2007 -p1
 %patch2008 -p1
 %patch2009 -p1
+%patch2010 -p1
 
 %patch2500 -p1
 %if 0%{?suse_version} > 1500