* ldgram.y (sect_constraint): New.

	(ONLY_IF_RO, ONLY_IF_RW): New tokens.
	(section): Add sect_constraint.  Pass additional argument
	to lang_enter_output_section_statement.
	* mri.c (mri_draw_tree): Pass additional argument to
	lang_enter_output_section_statement.
	* emultempl/pe.em (place_orphan): Likewise.
	(output_prev_sec_find): Disregard output section statements with
	constraint == -1.
	* emultempl/mmo.em (output_prev_sec_find): Likewise.
	(mmo_place_orphan): Pass additional argument to
	lang_enter_output_section_statement.
	* emultempl/elf32.em (output_prev_sec_find): Disregard output section
	statements with constraint == -1.
	(place_orphan): Pass additional argument to
	lang_enter_output_section_statement.
	* ldlang.c (lang_enter_overlay_section): Likewise.
	(lang_output_section_find_1): New.
	(lang_output_section_find): Use it.
	(lang_output_section_statement_lookup_1): New.
	(lang_output_section_statement_lookup): Use it.
	(check_section_callback, check_input_sections): New.
	(map_input_to_output_sections): Check if all input sections
	are readonly if ONLY_IF_RO or ONLY_IF_RW was seen.
	(strip_excluded_output_sections): Disregard output section statements
	with constraint == -1.
	(lang_record_phdrs): Likewise.
	(lang_enter_output_section_statement): Add constraint argument.
	Use lang_output_section_statement_lookup_1.
	* ldlang.h (lang_output_section_statement_type): Add constraint
	and all_input_readonly fields.
	(lang_enter_output_section_statement): Adjust prototype.
	* ldlex.l (ONLY_IF_RO, ONLY_IF_RW): New tokens.
	* scripttempl/elf.sc (.eh_frame, .gcc_except_table): Move into text
	segment if all input sections are readonly.

1 files changed, 3 insertions, 1 deletions

diff --git a/ld/ldlang.h b/ld/ldlang.h
index 0ba31bb..0b56c27 100644
--- a/ld/ldlang.h
+++ b/ld/ldlang.h
@@ -146,6 +146,8 @@ typedef struct lang_output_section_statement_struct
 
   int subsection_alignment;	/* Alignment of components.  */
   int section_alignment;	/* Alignment of start of section.  */
+  int constraint;
+  bfd_boolean all_input_readonly;
 
   union etree_union *load_base;
 
@@ -438,7 +440,7 @@ extern lang_output_section_statement_type *lang_enter_output_section_statement
    enum section_type sectype,
    etree_type *align,
    etree_type *subalign,
-   etree_type *);
+   etree_type *, int);
 extern void lang_final
   (void);
 extern void lang_process