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[68]l: proper end of instruction ranges in dwarf.

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R=rsc
CC=golang-dev
https://golang.org/cl/2542042
This commit is contained in:
Luuk van Dijk 2010-10-17 22:35:55 +02:00
parent cc9e6b5cdb
commit a647f59c1f
1 changed files with 6 additions and 9 deletions
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15
src/cmd/ld/dwarf.c
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@ -667,7 +667,7 @@ flushunit(vlong pc, vlong unitstart)
static void
writelines(void)
{
Prog *p, *q;
Prog *q;
Sym *s;
char *unitname;
vlong unitstart;
@ -676,7 +676,6 @@ writelines(void)
int i;
Linehist *lh;
q = nil;
unitstart = -1;
epc = pc = 0;
lc = 1;
@ -741,20 +740,18 @@ writelines(void)
if (!s->reachable)
continue;
p = s->text;
if (unitstart < 0) {
diag("reachable code before seeing any history: %P", p);
diag("reachable code before seeing any history: %P", s->text);
continue;
}
dwinfo->child = newdie(dwinfo->child, DW_ABRV_FUNCTION);
newattr(dwinfo->child, DW_AT_name, DW_CLS_STRING, strlen(s->name), s->name);
newattr(dwinfo->child, DW_AT_low_pc, DW_CLS_ADDRESS, s->text->pc, 0);
newattr(dwinfo->child, DW_AT_high_pc, DW_CLS_ADDRESS, s->text->pc + s->size, 0);
newattr(dwinfo->child, DW_AT_low_pc, DW_CLS_ADDRESS, s->value, 0);
epc = s->value + s->size;
newattr(dwinfo->child, DW_AT_high_pc, DW_CLS_ADDRESS, epc, 0);
for(q = p; q != P && (q == p || q->as != ATEXT); q = q->link) {
epc = q->pc;
for(q = s->text; q != P; q = q->link) {
lh = searchhist(q->line);
if (lh == nil) {
diag("corrupt history or bad absolute line: %P", q);