make dynamic linker tell the debugger its own pathname
use the main program's PT_INTERP header if possible, since this is
sure to be a correct (and hopefully absolute) pathname.
diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index 76f416c..a171df9 100644
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -577,12 +577,16 @@
decode_dyn(lib);
if (aux[AT_PHDR]) {
+ size_t interp_off = 0;
/* Find load address of the main program, via AT_PHDR vs PT_PHDR. */
phdr = (void *)aux[AT_PHDR];
for (i=aux[AT_PHNUM]; i; i--, phdr=(void *)((char *)phdr + aux[AT_PHENT])) {
if (phdr->p_type == PT_PHDR)
app->base = (void *)(aux[AT_PHDR] - phdr->p_vaddr);
+ else if (phdr->p_type == PT_INTERP)
+ interp_off = (size_t)phdr->p_vaddr;
}
+ if (interp_off) lib->name = (char *)app->base + interp_off;
app->name = argv[0];
app->dynv = (void *)(app->base + find_dyn(
(void *)aux[AT_PHDR], aux[AT_PHNUM], aux[AT_PHENT]));
@@ -612,6 +616,7 @@
}
runtime = 0;
close(fd);
+ lib->name = ldname;
app->name = argv[0];
app->dynv = (void *)(app->base + dyno);
aux[AT_ENTRY] = ehdr->e_entry;