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MDEV-33478: Tests massively fail with clang-18 -fsanitize=memory

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Starting with clang-16, MemorySanitizer appears to check that
uninitialized values not be passed by value nor returned.
Previously, it was allowed to copy uninitialized data in such cases.

get_foreign_key_info(): Remove a local variable that was passed
uninitialized to a function.

DsMrr_impl: Initialize key_buffer, because DsMrr_impl::dsmrr_init()
is reading it.

test_bind_result_ext1(): MYSQL_TYPE_LONG is 32 bits, hence we must
use a 32-bit type, such as int. sizeof(long) differs between
LP64 and LLP64 targets.
This commit is contained in:
Marko Mäkelä
2024-03-18 16:01:29 +02:00
parent fb774eb1eb
commit 09d991d01c
8 changed files with 25 additions and 19 deletions
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4
tests/mysql_client_test.c
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@@ -3842,7 +3842,7 @@ static void test_bind_result_ext1()
short i_data;
uchar b_data;
int f_data;
long bData;
int bData;
char d_data[20];
double szData;
MYSQL_BIND my_bind[8];
@@ -3938,7 +3938,7 @@ static void test_bind_result_ext1()
fprintf(stdout, "\n data (float) : %d(%lu)", f_data, length[4]);
fprintf(stdout, "\n data (double) : %s(%lu)", d_data, length[5]);
fprintf(stdout, "\n data (bin) : %ld(%lu)", bData, length[6]);
fprintf(stdout, "\n data (bin) : %d(%lu)", bData, length[6]);
fprintf(stdout, "\n data (str) : %g(%lu)", szData, length[7]);
}