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elf: Emit warning if tunable is ill-formatted

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So caller knows that the tunable will be ignored.

Checked on x86_64-linux-gnu.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Adhemerval Zanella 2023-11-06 17:25:41 -03:00
parent 434eca873f
commit eb9291aaa6
1 changed files with 6 additions and 0 deletions
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6
elf/dl-tunables.c
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@ -235,6 +235,12 @@ parse_tunables (char *valstring)
{ {
struct tunable_toset_t tunables[tunables_list_size]; struct tunable_toset_t tunables[tunables_list_size];
int ntunables = parse_tunables_string (valstring, tunables); int ntunables = parse_tunables_string (valstring, tunables);
if (ntunables == -1)
{
_dl_error_printf (
"WARNING: ld.so: invalid GLIBC_TUNABLES `%s': ignored.\n", valstring);
return;
}
for (int i = 0; i < ntunables; i++) for (int i = 0; i < ntunables; i++)
tunable_initialize (tunables[i].t, tunables[i].value); tunable_initialize (tunables[i].t, tunables[i].value);