glibc/nptl_db/db-symbols.awk
Florian Weimer 23ce1cf35a nptl: Move __nptl_create_event, __nptl_death_event into libc
In libthread_db, use the exported GLIBC_PRIVATE symbols directly
instead of relying on _thread_db_* variables in libpthread
(which used to be created by the DB_FUNCTION macros).

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-17 10:06:44 +02:00

50 lines
1.0 KiB
Awk

# This script processes the output of 'readelf -W -s' on the libpthread.so
# we've just built. It checks for all the symbols used in td_symbol_list.
BEGIN {
%define DB_RTLD_VARIABLE(name) /* Nothing. */
%define DB_MAIN_VARIABLE(name) /* Nothing. */
%define DB_MAIN_SYMBOL(name) /* Nothing. */
%define DB_MAIN_ARRAY_VARIABLE(name) /* Nothing. */
%define DB_LOOKUP_NAME(idx, name) required[STRINGIFY (name)] = 1;
%define DB_LOOKUP_NAME_TH_UNIQUE(idx, name) th_unique[STRINGIFY (name)] = 1;
%include "db-symbols.h"
in_symtab = 0;
}
/Symbol table '.symtab'/ { in_symtab=1; next }
NF == 0 { in_symtab=0; next }
!in_symtab { next }
NF >= 8 && $7 != "UND" { seen[$NF] = 1 }
END {
status = 0;
for (s in required) {
if (s in seen) print s, "ok";
else {
status = 1;
print s, "***MISSING***";
}
}
any = "";
for (s in th_unique) {
if (s in seen) {
any = s;
break;
}
}
if (any)
print "th_unique:", any;
else {
status = 1;
print "th_unique:", "***MISSING***";
}
exit(status);
}