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* ldlang.c (lang_get_regions): Add extra parameter 'have_vma' which if true will
prevent the LMA region being used as a replacement for a default VMA region. (lang_leave_output_section_statement): Pass extra parameter. (lang_leave_overlay): Likewise. * ld.texinfo (Output Section LMA): Document that the LMA region can be set to the VMA region if no VMA has been set. * ldlang.h (struct lang_output_section_phdr_list): Create a typedef for this type. Minor formatting fixes.
This commit is contained in:
Nick Clifton
147
ld/ldlang.h
147
ld/ldlang.h
@@ -25,7 +25,8 @@
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#define DEFAULT_MEMORY_REGION "*default*"
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typedef enum {
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typedef enum
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{
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lang_input_file_is_l_enum,
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lang_input_file_is_symbols_only_enum,
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lang_input_file_is_marker_enum,
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@@ -34,17 +35,20 @@ typedef enum {
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lang_input_file_is_file_enum
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} lang_input_file_enum_type;
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struct _fill_type {
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struct _fill_type
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{
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size_t size;
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unsigned char data[1];
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};
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typedef struct statement_list {
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typedef struct statement_list
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{
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union lang_statement_union *head;
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union lang_statement_union **tail;
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} lang_statement_list_type;
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typedef struct memory_region_struct {
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typedef struct memory_region_struct
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{
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char *name;
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struct memory_region_struct *next;
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bfd_vma origin;
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@@ -56,9 +60,11 @@ typedef struct memory_region_struct {
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bfd_boolean had_full_message;
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} lang_memory_region_type;
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typedef struct lang_statement_header_struct {
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typedef struct lang_statement_header_struct
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{
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union lang_statement_union *next;
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enum statement_enum {
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enum statement_enum
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{
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lang_output_section_statement_enum,
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lang_assignment_statement_enum,
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lang_input_statement_enum,
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@@ -79,24 +85,28 @@ typedef struct lang_statement_header_struct {
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} type;
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} lang_statement_header_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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union etree_union *exp;
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} lang_assignment_statement_type;
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typedef struct lang_target_statement_struct {
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typedef struct lang_target_statement_struct
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{
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lang_statement_header_type header;
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const char *target;
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} lang_target_statement_type;
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typedef struct lang_output_statement_struct {
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typedef struct lang_output_statement_struct
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{
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lang_statement_header_type header;
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const char *name;
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} lang_output_statement_type;
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/* Section types specified in a linker script. */
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enum section_type {
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enum section_type
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{
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normal_section,
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dsect_section,
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copy_section,
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@@ -105,16 +115,18 @@ enum section_type {
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overlay_section
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};
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/* This structure holds a list of program headers describing segments
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in which this section should be placed. */
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/* This structure holds a list of program headers describing
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segments in which this section should be placed. */
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struct lang_output_section_phdr_list {
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typedef struct lang_output_section_phdr_list
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{
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struct lang_output_section_phdr_list *next;
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const char *name;
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bfd_boolean used;
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};
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} lang_output_section_phdr_list;
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typedef struct lang_output_section_statement_struct {
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typedef struct lang_output_section_statement_struct
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{
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lang_statement_header_type header;
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union etree_union *addr_tree;
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lang_statement_list_type children;
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@@ -125,15 +137,15 @@ typedef struct lang_output_section_statement_struct {
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bfd_boolean processed;
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asection *bfd_section;
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flagword flags; /* Or together of all input sections */
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flagword flags; /* Or together of all input sections. */
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enum section_type sectype;
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struct memory_region_struct *region;
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struct memory_region_struct *lma_region;
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lang_memory_region_type *region;
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lang_memory_region_type *lma_region;
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size_t block_value;
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fill_type *fill;
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int subsection_alignment; /* alignment of components */
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int section_alignment; /* alignment of start of section */
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int subsection_alignment; /* Alignment of components. */
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int section_alignment; /* Alignment of start of section. */
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union etree_union *load_base;
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@@ -143,25 +155,29 @@ typedef struct lang_output_section_statement_struct {
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to move '.' past all the overlaid sections. */
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union etree_union *update_dot_tree;
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struct lang_output_section_phdr_list *phdrs;
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lang_output_section_phdr_list *phdrs;
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} lang_output_section_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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} lang_common_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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} lang_object_symbols_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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fill_type *fill;
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int size;
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asection *output_section;
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} lang_fill_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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unsigned int type;
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union etree_union *exp;
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@@ -172,7 +188,8 @@ typedef struct {
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/* Generate a reloc in the output file. */
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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/* Reloc to generate. */
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@@ -181,12 +198,12 @@ typedef struct {
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/* Reloc howto structure. */
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reloc_howto_type *howto;
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/* Section to generate reloc against. Exactly one of section and
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name must be NULL. */
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/* Section to generate reloc against.
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Exactly one of section and name must be NULL. */
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asection *section;
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/* Name of symbol to generate reloc against. Exactly one of section
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and name must be NULL. */
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/* Name of symbol to generate reloc against.
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Exactly one of section and name must be NULL. */
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const char *name;
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/* Expression for addend. */
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@@ -202,13 +219,14 @@ typedef struct {
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bfd_vma output_vma;
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} lang_reloc_statement_type;
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typedef struct lang_input_statement_struct {
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typedef struct lang_input_statement_struct
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{
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lang_statement_header_type header;
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/* Name of this file. */
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const char *filename;
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/* Name to use for the symbol giving address of text start */
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/* Usually the same as filename, but for a file spec'd with -l
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this is the -l switch itself rather than the filename. */
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/* Name to use for the symbol giving address of text start.
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Usually the same as filename, but for a file spec'd with
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-l this is the -l switch itself rather than the filename. */
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const char *local_sym_name;
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bfd *the_bfd;
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@@ -222,9 +240,9 @@ typedef struct lang_input_statement_struct {
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/* Point to the next file - whatever it is, wanders up and down
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archives */
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union lang_statement_union *next;
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/* Point to the next file, but skips archive contents */
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/* Point to the next file, but skips archive contents. */
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union lang_statement_union *next_real_file;
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bfd_boolean is_archive;
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@@ -241,7 +259,6 @@ typedef struct lang_input_statement_struct {
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/* 1 means this is base file of incremental load.
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Do not load this file's text or data.
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Also default text_start to after this file's bss. */
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bfd_boolean just_syms_flag;
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/* Whether to search for this entry as a dynamic archive. */
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@@ -259,20 +276,23 @@ typedef struct lang_input_statement_struct {
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bfd_boolean real;
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} lang_input_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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asection *section;
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lang_input_statement_type *ifile;
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} lang_input_section_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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asection *section;
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union lang_statement_union *file;
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} lang_afile_asection_pair_statement_type;
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typedef struct lang_wild_statement_struct {
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typedef struct lang_wild_statement_struct
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{
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lang_statement_header_type header;
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const char *filename;
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bfd_boolean filenames_sorted;
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@@ -281,13 +301,15 @@ typedef struct lang_wild_statement_struct {
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lang_statement_list_type children;
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} lang_wild_statement_type;
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typedef struct lang_address_statement_struct {
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typedef struct lang_address_statement_struct
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{
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lang_statement_header_type header;
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const char *section_name;
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union etree_union *address;
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} lang_address_statement_type;
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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bfd_vma output_offset;
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size_t size;
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@@ -300,12 +322,14 @@ typedef struct {
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symbols are found. The effect is to search a group of libraries as
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though they were a single library. */
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typedef struct {
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typedef struct
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{
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lang_statement_header_type header;
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lang_statement_list_type children;
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} lang_group_statement_type;
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typedef union lang_statement_union {
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typedef union lang_statement_union
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{
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lang_statement_header_type header;
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lang_wild_statement_type wild_statement;
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lang_data_statement_type data_statement;
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@@ -328,7 +352,8 @@ typedef union lang_statement_union {
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/* This structure holds information about a program header, from the
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PHDRS command in the linker script. */
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struct lang_phdr {
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struct lang_phdr
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{
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struct lang_phdr *next;
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const char *name;
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unsigned long type;
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@@ -341,16 +366,18 @@ struct lang_phdr {
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/* This structure is used to hold a list of sections which may not
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cross reference each other. */
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struct lang_nocrossref {
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typedef struct lang_nocrossref
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{
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struct lang_nocrossref *next;
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const char *name;
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};
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} lang_nocrossref_type;
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/* The list of nocrossref lists. */
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struct lang_nocrossrefs {
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struct lang_nocrossrefs
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{
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struct lang_nocrossrefs *next;
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struct lang_nocrossref *list;
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lang_nocrossref_type *list;
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};
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extern struct lang_nocrossrefs *nocrossref_list;
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@@ -358,7 +385,8 @@ extern struct lang_nocrossrefs *nocrossref_list;
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/* This structure is used to hold a list of input section names which
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will not match an output section in the linker script. */
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struct unique_sections {
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struct unique_sections
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{
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struct unique_sections *next;
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const char *name;
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};
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@@ -366,7 +394,8 @@ struct unique_sections {
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/* This structure records symbols for which we need to keep track of
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definedness for use in the DEFINED () test. */
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struct lang_definedness_hash_entry {
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struct lang_definedness_hash_entry
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{
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struct bfd_hash_entry root;
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int iteration;
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};
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@@ -389,9 +418,9 @@ extern int lang_statement_iteration;
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extern void lang_init
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(void);
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extern struct memory_region_struct *lang_memory_region_lookup
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extern lang_memory_region_type *lang_memory_region_lookup
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(const char *const, bfd_boolean);
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extern struct memory_region_struct *lang_memory_region_default
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extern lang_memory_region_type *lang_memory_region_default
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(asection *);
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extern void lang_map
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(void);
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@@ -431,15 +460,15 @@ extern void lang_startup
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extern void lang_float
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(bfd_boolean);
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extern void lang_leave_output_section_statement
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(fill_type *, const char *, struct lang_output_section_phdr_list *,
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(fill_type *, const char *, lang_output_section_phdr_list *,
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const char *);
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extern void lang_abs_symbol_at_end_of
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(const char *, const char *);
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extern void lang_abs_symbol_at_beginning_of
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(const char *, const char *);
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extern void lang_statement_append
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(struct statement_list *, union lang_statement_union *,
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union lang_statement_union **);
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(lang_statement_list_type *, lang_statement_union_type *,
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lang_statement_union_type **);
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extern void lang_for_each_input_file
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(void (*dothis) (lang_input_statement_type *));
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extern void lang_for_each_file
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@@ -501,16 +530,16 @@ extern void lang_new_phdr
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(const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *,
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etree_type *);
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extern void lang_add_nocrossref
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(struct lang_nocrossref *);
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(lang_nocrossref_type *);
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extern void lang_enter_overlay
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(etree_type *, etree_type *);
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extern void lang_enter_overlay_section
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(const char *);
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extern void lang_leave_overlay_section
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(fill_type *, struct lang_output_section_phdr_list *);
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(fill_type *, lang_output_section_phdr_list *);
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extern void lang_leave_overlay
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(etree_type *, int, fill_type *, const char *,
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struct lang_output_section_phdr_list *, const char *);
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lang_output_section_phdr_list *, const char *);
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extern struct bfd_elf_version_tree *lang_elf_version_info;
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