From: hjl <hjl>
Date: Wed, 28 Sep 2005 00:34:20 +0000 (+0000)
Subject: 2005-09-27  H.J. Lu  <hongjiu.lu@intel.com>
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=57e544f5b44e29937f6ca31af750015a2d71c055;p=pf3gnuchains%2Fpf3gnuchains3x.git

2005-09-27  H.J. Lu  <hongjiu.lu@intel.com>

	* ld.texinfo (ALIGN): Document it as forcing output section
	alignment.

	* ldgram.y (ALIGN): Support it for forcing output section
	alignment.
---

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 0aedf6b575..85fc35a900 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2005-09-27  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* ld.texinfo (ALIGN): Document it as forcing output section
+	alignment.
+
+	* ldgram.y (ALIGN): Support it for forcing output section
+	alignment.
+
 2005-09-20  Alan Modra  <amodra@bigpond.net.au>
 
 	* ldlang.h (lang_output_section_statement_struct): Change type of
diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 2099971eb0..a95a329a1f 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -3065,7 +3065,7 @@ The full description of an output section looks like this:
 @smallexample
 @group
 @var{section} [@var{address}] [(@var{type})] :
-  [AT(@var{lma})] [SUBALIGN(@var{subsection_align})]
+  [AT(@var{lma})] [ALIGN(@var{section_align})] [SUBALIGN(@var{subsection_align})]
   @{
     @var{output-section-command}
     @var{output-section-command}
@@ -3641,7 +3641,7 @@ like this:
 @smallexample
 @group
 @var{section} [@var{address}] [(@var{type})] :
-  [AT(@var{lma})] [SUBALIGN(@var{subsection_align})]
+  [AT(@var{lma})] [ALIGN(@var{section_align})] [SUBALIGN(@var{subsection_align})]
   @{
     @var{output-section-command}
     @var{output-section-command}
@@ -3656,6 +3656,7 @@ remaining section attributes.
 @menu
 * Output Section Type::		Output section type
 * Output Section LMA::		Output section LMA
+* Forced Output Alignment::	Forced Output Alignment
 * Forced Input Alignment::	Forced Input Alignment
 * Output Section Region::	Output section region
 * Output Section Phdr::		Output section phdr
@@ -3769,6 +3770,15 @@ for (dst = &_bstart; dst< &_bend; dst++)
 @end group
 @end smallexample
 
+@node Forced Output Alignment
+@subsubsection Forced Output Alignment
+@kindex ALIGN(@var{section_align})
+@cindex forcing output section alignment
+@cindex output section alignment
+You can force an output section alignment by using ALIGN.  The value
+specified overrides any alignment given by input sections, whether
+larger or smaller.
+
 @node Forced Input Alignment
 @subsubsection Forced Input Alignment
 @kindex SUBALIGN(@var{subsection_align})
diff --git a/ld/ldgram.y b/ld/ldgram.y
index c8cf6c1d26..f6e2aa2215 100644
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -92,7 +92,7 @@ static int error_index;
 }
 
 %type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
-%type <etree> opt_exp_without_type opt_subalign
+%type <etree> opt_exp_without_type opt_subalign opt_align
 %type <fill> fill_opt fill_exp
 %type <name_list> exclude_name_list
 %type <wildcard_list> file_NAME_list
@@ -889,6 +889,11 @@ opt_at:
 	|	{ $$ = 0; }
 	;
 
+opt_align:
+		ALIGN_K '(' exp ')' { $$ = $3; }
+	|	{ $$ = 0; }
+	;
+
 opt_subalign:
 		SUBALIGN '(' exp ')' { $$ = $3; }
 	|	{ $$ = 0; }
@@ -904,20 +909,21 @@ sect_constraint:
 section:	NAME 		{ ldlex_expression(); }
 		opt_exp_with_type
 		opt_at
+		opt_align
 		opt_subalign	{ ldlex_popstate (); ldlex_script (); }
 		sect_constraint
 		'{'
 			{
 			  lang_enter_output_section_statement($1, $3,
 							      sectype,
-							      0, $5, $4, $7);
+							      $5, $6, $4, $8);
 			}
 		statement_list_opt
  		'}' { ldlex_popstate (); ldlex_expression (); }
 		memspec_opt memspec_at_opt phdr_opt fill_opt
 		{
 		  ldlex_popstate ();
-		  lang_leave_output_section_statement ($16, $13, $15, $14);
+		  lang_leave_output_section_statement ($17, $14, $16, $15);
 		}
 		opt_comma
 		{}