illumos gcc 14.3.0 bringup

Makefile.in

@@ -655,7 +655,7 @@ STAGEautofeedback_TFLAGS = $(STAGE3_TFLAGS)
 # may result in additional warnings.
 STAGEautofeedback_CONFIGURE_FLAGS = $(filter-out --enable-werror-always,$(STAGE_CONFIGURE_FLAGS))
 
-do-compare = @do_compare@
+do-compare = $(srcdir)/contrib/compare-debug $$f1 $$f2
 do-compare3 = $(do-compare)
 
 # -----------------------------------------------

README.md

@@ -0,0 +1,39 @@
+This is the GCC used for compiling illumos.
+
+The `il-*` branches contain the the patches used for building illumos, which
+are rebased versions of those used for Solaris/OpenSolaris, and then
+additional changes.  The versions actually in use are tagged with
+`il-VERSION-ilN` where _N_ version the illumos changes over the GCC version in
+question.
+
+The `wip/*` branches are works in progress and _should never be used_
+
+The `codesourcery/*` and `sun/*` branches contain the original GCCs as patched by
+CodeSourcery and Sun Microsystems for use compiling Solaris and OpenSolaris as
+was, and the GCCFSS patches of Sun's
+
+When building the compilers for illumos use the flags generally used are:
+
+i386
+~~~sh
+../../configure --prefix=/opt/gcc/$VER --with-as=/usr/bin/gas --with-gnu-as \
+   --with-ld=/usr/bin/ld --without-gnu-ld --enable-languages="c,c++,objc" \
+   --enable-shared  --with-mpfr-include=/usr/include/mpfr \
+   --with-gmp-include=/usr/include/gmp \
+   --with-pkgversion="Illumos $(git describe --all)" \
+   --with-bugurl="http://github.com/richlowe/gcc/issues"
+~~~
+
+sparc
+~~~sh
+../../configure --prefix=/opt/gcc/$VER --without-gnu-as --with-as=/usr/ccs/bin/as" \
+   --with-ld=/usr/bin/ld --without-gnu-ld --enable-languages="c,c++,objc" \
+   --enable-shared  --with-mpfr-include=/usr/include/mpfr \
+   --with-gmp-include=/usr/include/gmp \
+   --with-pkgversion="Illumos $(git describe --all)" \
+   --with-bugurl="http://github.com/richlowe/gcc/issues"
+~~~
+
+Please use the correct `--with-bugurl` and `--with-pkgversion` flags as
+appropriate for any modifications you make, but please also be sure that they
+accurately describe what is in use (ie, are not left at the defaults) either.

contrib/make_sunver.pl

@@ -55,7 +55,7 @@
 # columns.
 
 # The path to elfdump.
-my $elfdump = "/usr/ccs/bin/elfdump";
+my $elfdump = "/usr/bin/elfdump";
 
 if (-f $elfdump) {
     open ELFDUMP,$elfdump.' -s '.(join ' ',@OBJECTS).'|' or die $!;

fixincludes/fixinc.in

@@ -212,7 +212,7 @@ search_dirs=""
 
 while [ -n "$dirs" ] && [ $levels -gt 0 ]
 do
-  levels=`expr $levels - 1`
+  levels=`expr $levels - 1; true`
   newdirs=
   for d in $dirs
   do
@@ -340,7 +340,7 @@ if $LINKS; then
           cd $LIB
           while [ x$dirname != x ]; do
             component=`echo $dirname | sed -e 's|/.*$||'`
-            mkdir $component >/dev/null 2>&1
+            mkdir -p $component >/dev/null 2>&1
             cd $component
             dirmade=$dirmade/$component
             dirname=`echo $dirname | sed -e 's|[^/]*//*||'`

gcc/attribs.cc

@@ -709,6 +709,15 @@ decl_attributes (tree *node, tree attributes, int flags,
 	attributes = tree_cons (get_identifier ("no_icf"),  NULL, attributes);
     }
 
+  /* If the user passed -fno-clone-functions, all functions should be treated
+     as "noclone" */
+  if (TREE_CODE (*node) == FUNCTION_DECL
+      && !flag_clone_functions)
+    {
+      if (lookup_attribute ("noclone", attributes) == NULL)
+	attributes = tree_cons (get_identifier ("noclone"),  NULL, attributes);
+    }
+
   targetm.insert_attributes (*node, &attributes);
 
   /* Note that attributes on the same declaration are not necessarily

gcc/common.opt

@@ -1231,6 +1231,11 @@ fcode-hoisting
 Common Var(flag_code_hoisting) Optimization
 Enable code hoisting.
 
+fclone-functions
+Common Var(flag_clone_functions) Init(1)
+Allow the compiler to clone functions to facilitate certain optimizations.
+Enabled by default.
+
 fcombine-stack-adjustments
 Common Var(flag_combine_stack_adjustments) Optimization
 Looks for opportunities to reduce stack adjustments and stack references.
@@ -2343,6 +2348,10 @@ fomit-frame-pointer
 Common Var(flag_omit_frame_pointer) Optimization
 When possible do not generate stack frames.
 
+fforce-omit-frame-pointer
+Common Var(flag_force_omit_frame_pointer) Optimization
+When possible, do not generate stack frames. Hinders debugging with mdb and dtrace.
+
 fopenmp-target-simd-clone
 Common Alias(fopenmp-target-simd-clone=,any,none)
 
@@ -2931,6 +2940,10 @@ fstrict-aliasing
 Common Var(flag_strict_aliasing) Optimization
 Assume strict aliasing rules apply.
 
+fstrict-calling-conventions
+Common Var(flag_strict_calling_conventions) Init(1)
+Use strict ABI calling conventions even for static functions
+
 fstrict-overflow
 Common
 Treat signed overflow as undefined.  Negated as -fwrapv -fwrapv-pointer.

gcc/config/i386/i386-options.cc

@@ -2796,6 +2796,11 @@ ix86_option_override_internal (bool main_args_p,
 	&= ~(OPTION_MASK_ISA2_AVX5124FMAPS | OPTION_MASK_ISA2_AVX5124VNNIW);
     }
 
+  if (!TARGET_64BIT_P (opts->x_ix86_isa_flags) && TARGET_SAVE_ARGS) {
+    warning (0, "-msave-args only works in x32 or 64-bit mode; ignoring");
+    opts->x_ix86_target_flags &= ~OPTION_MASK_SAVE_ARGS;
+  }
+
   /* Validate -mpreferred-stack-boundary= value or default it to
      PREFERRED_STACK_BOUNDARY_DEFAULT.  */
   ix86_preferred_stack_boundary = PREFERRED_STACK_BOUNDARY_DEFAULT;
@@ -3261,6 +3266,18 @@ ix86_option_override_internal (bool main_args_p,
       free (str);
     }
 
+  /*
+   * We never want to omit the frame pointer, regardless of the optimisation
+   * level or options to gcc - we like stack traces too much and it is of
+   * questionable benefit anyway, even on i386.
+   */
+
+  if (flag_force_omit_frame_pointer == 0)
+    {
+      flag_omit_frame_pointer = 0;
+      opts->x_flag_omit_frame_pointer = 0;
+    }
+
   /* Save the initial options in case the user does function specific
      options.  */
   if (main_args_p)