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* Makefile.in (earmsymbian.c): Depend on armbpabi.sc, not elf.sc.

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* ldexp.h (segment_type): New type.
	(segments): New variable.
	* ldexp.c (segments): New variable.
	(exp_print_token): Handle SEGMENT_START.
	(fold_binary): Likewise.
	* ldgram.y (SEGMENT_START): Declare it as a token.
	(exp): Handle SEGMENT_START.
	* ldlang.h (lang_address_statement_type): Add segment field.
	(lang_section_start): Change prototype.
	* ldlang.c (map_input_to_output_sections): Do not process section
	assignments if a corresponding SEGMENT_START has already been
	seen.
	(lang_section_start): Add segment parameter.
	* ldlex.l (SEGMENT_START): Add it.
	* lexsup.c (seg_segment_start): New function.
	(parse_args): Use it for -Tbss, -Tdata, and -Ttext.
	* ld.texinfo (SEGMENT_START): Document it.
	* emulparams/armsymbian.sh (EMBEDDED): Set it.
	* scripttempl/armbpabi.sc: Use SEGMENT_START to control segment
	base addresses.  Do not map relocations.
	* NEWS: Mention SEGMENT_START.
This commit is contained in:
Mark Mitchell
2004-10-26 18:41:52 +00:00
parent 1ec5cd3721
commit ba916c8af2
14 changed files with 235 additions and 150 deletions
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27
ld/ldexp.c
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@ -48,6 +48,8 @@ static bfd_vma align_n
struct exp_data_seg exp_data_seg;
segment_type *segments;
/* Print the string representation of the given token. Surround it
with spaces if INFIX_P is TRUE. */
@ -102,7 +104,8 @@ exp_print_token (token_code_type code, int infix_p)
{ REL, "relocatable" },
{ DATA_SEGMENT_ALIGN, "DATA_SEGMENT_ALIGN" },
{ DATA_SEGMENT_RELRO_END, "DATA_SEGMENT_RELRO_END" },
{ DATA_SEGMENT_END, "DATA_SEGMENT_END" }
{ DATA_SEGMENT_END, "DATA_SEGMENT_END" },
{ SEGMENT_START, "SEGMENT_START" }
};
unsigned int idx;
@ -305,7 +308,27 @@ fold_binary (etree_type *tree,
result = exp_fold_tree (tree->binary.lhs, current_section,
allocation_done, dot, dotp);
if (result.valid_p)
/* The SEGMENT_START operator is special because its first
operand is a string, not the name of a symbol. */
if (result.valid_p && tree->type.node_code == SEGMENT_START)
{
const char *segment_name;
segment_type *seg;
/* Check to see if the user has overridden the default
value. */
segment_name = tree->binary.rhs->name.name;
for (seg = segments; seg; seg = seg->next)
if (strcmp (seg->name, segment_name) == 0)
{
seg->used = TRUE;
result.value = seg->value;
result.str = NULL;
result.section = NULL;
break;
}
}
else if (result.valid_p)
{
etree_value_type other;