Thread: gcc 13 warnings

gcc 13 warnings

From

Pavel Stehule

Date:

16 March 2023, 16:40:04

see

[504/2287] Compiling C object src/backend/postgres_lib.a.p/access_transam_xlogrecovery.c.o
In function ‘recoveryStopsAfter’,
inlined from ‘PerformWalRecovery’ at ../src/backend/access/transam/xlogrecovery.c:1749:8:
../src/backend/access/transam/xlogrecovery.c:2737:42: warning: ‘recordXtime’ may be used uninitialized [-Wmaybe-uninitialized]
2737 | recoveryStopTime = recordXtime;
| ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
../src/backend/access/transam/xlogrecovery.c: In function ‘PerformWalRecovery’:
../src/backend/access/transam/xlogrecovery.c:2628:21: note: ‘recordXtime’ was declared here
2628 | TimestampTz recordXtime;
| ^~~~~~~~~~~
[1642/2287] Compiling C object src/bin/pgbench/pgbench.p/pgbench.c.o
In function ‘coerceToInt’,
inlined from ‘evalStandardFunc’ at ../src/bin/pgbench/pgbench.c:2617:11:
../src/bin/pgbench/pgbench.c:2042:17: warning: ‘vargs[0].type’ may be used uninitialized [-Wmaybe-uninitialized]
2042 | if (pval->type == PGBT_INT)
| ~~~~^~~~~~
../src/bin/pgbench/pgbench.c: In function ‘evalStandardFunc’:
../src/bin/pgbench/pgbench.c:2250:22: note: ‘vargs’ declared here
2250 | PgBenchValue vargs[MAX_FARGS];
| ^~~~~
In function ‘coerceToInt’,
inlined from ‘evalStandardFunc’ at ../src/bin/pgbench/pgbench.c:2617:11:
../src/bin/pgbench/pgbench.c:2044:32: warning: ‘vargs[0].u.ival’ may be used uninitialized [-Wmaybe-uninitialized]
2044 | *ival = pval->u.ival;
| ~~~~~~~^~~~~
../src/bin/pgbench/pgbench.c: In function ‘evalStandardFunc’:
../src/bin/pgbench/pgbench.c:2250:22: note: ‘vargs’ declared here
2250 | PgBenchValue vargs[MAX_FARGS];
| ^~~~~
In function ‘coerceToInt’,
inlined from ‘evalStandardFunc’ at ../src/bin/pgbench/pgbench.c:2617:11:
../src/bin/pgbench/pgbench.c:2049:40: warning: ‘vargs[0].u.dval’ may be used uninitialized [-Wmaybe-uninitialized]
2049 | double dval = rint(pval->u.dval);
| ^~~~~~~~~~~~~~~~~~
../src/bin/pgbench/pgbench.c: In function ‘evalStandardFunc’:
../src/bin/pgbench/pgbench.c:2250:22: note: ‘vargs’ declared here
2250 | PgBenchValue vargs[MAX_FARGS];
| ^~~~~
[1700/2287] Compiling C object src/pl/plpgsql/src/plpgsql.so.p/pl_exec.c.o
In file included from ../src/include/access/htup_details.h:22,
from ../src/pl/plpgsql/src/pl_exec.c:21:
In function ‘assign_simple_var’,
inlined from ‘exec_set_found’ at ../src/pl/plpgsql/src/pl_exec.c:8307:2:
../src/include/varatt.h:230:36: warning: array subscript 0 is outside array bounds of ‘char[0]’ [-Warray-bounds=]
230 | (((varattrib_1b_e *) (PTR))->va_tag)
| ^
../src/include/varatt.h:94:12: note: in definition of macro ‘VARTAG_IS_EXPANDED’
94 | (((tag) & ~1) == VARTAG_EXPANDED_RO)
| ^~~
../src/include/varatt.h:284:57: note: in expansion of macro ‘VARTAG_1B_E’
284 | #define VARTAG_EXTERNAL(PTR) VARTAG_1B_E(PTR)
| ^~~~~~~~~~~
../src/include/varatt.h:301:57: note: in expansion of macro ‘VARTAG_EXTERNAL’
301 | (VARATT_IS_EXTERNAL(PTR) && !VARTAG_IS_EXPANDED(VARTAG_EXTERNAL(PTR)))
| ^~~~~~~~~~~~~~~
../src/pl/plpgsql/src/pl_exec.c:8495:17: note: in expansion of macro ‘VARATT_IS_EXTERNAL_NON_EXPANDED’
8495 | VARATT_IS_EXTERNAL_NON_EXPANDED(DatumGetPointer(newvalue)))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘exec_set_found’:
cc1: note: source object is likely at address zero

Regards

Pavel