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dtc: implement labels on memory reserve slots

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Allow a label to be placed on a memory reserve entry.
Change the parser to recognize and store them.  Emit
them when writing assembly output.

Signed-off-by: Milton Miller <miltonm@bga.com>
This commit is contained in:
Milton Miller 2007-07-07 01:18:49 -05:00 • committed by Jon Loeliger
parent 85ab5cc6ec
commit d429033851
2 changed files with 8 additions and 4 deletions
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8
dtc-parser.y
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@ -92,11 +92,11 @@ memreserves: memreserve memreserves {
}
;
memreserve: DT_MEMRESERVE DT_ADDR DT_ADDR ';' {
$$ = build_reserve_entry($2, $3, NULL);
memreserve: label DT_MEMRESERVE DT_ADDR DT_ADDR ';' {
$$ = build_reserve_entry($3, $4, $1);
}
| DT_MEMRESERVE DT_ADDR '-' DT_ADDR ';' {
$$ = build_reserve_entry($2, $4 - $2 + 1, NULL);
| label DT_MEMRESERVE DT_ADDR '-' DT_ADDR ';' {
$$ = build_reserve_entry($3, $5 - $3 + 1, $1);
}
;

4
flattree.c
View file

@ -497,6 +497,10 @@ void dt_to_asm(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys)
* as it appears .quad isn't available in some assemblers.
*/
for (re = bi->reservelist; re; re = re->next) {
if (re->label) {
fprintf(f, "\t.globl\t%s\n", re->label);
fprintf(f, "%s:\n", re->label);
}
fprintf(f, "\t.long\t0x%08x\n\t.long\t0x%08x\n",
(unsigned int)(re->re.address >> 32),
(unsigned int)(re->re.address & 0xffffffff));