glibc/nptl_db/db-symbols.awk
Florian Weimer 3640654575 nptl_db: Re-use the ELF-to-abilist converter for ABI checking
The previous approach uses readelf -DWs, which does not produce
a stable output format (older binutils versions do not include
symbol version information).  This commit re-uses scripts/abilist.awk
with a tweak to include GLIBC_PRIVATE symbols.  This awk script
is based on objdump -T output, which appears to be stable over time.

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
2021-06-29 22:17:08 +02:00

46 lines
897 B
Awk

# This script processes the libc.so abilist (with GLIBC_PRIVATE
# symbols included). It checks for all the symbols used in td_symbol_list.
BEGIN {
%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;
}
/^GLIBC_PRIVATE / {
seen[$2] = 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);
}