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Add safeguards for sufficient BUFFER_SIZE

This commit is contained in:
Martin Kroeker 2020-04-12 19:45:36 +02:00 committed by GitHub
parent a33d177430
commit 2a28448a96
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 1 deletions
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26
driver/others/memory.c
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@ -87,6 +87,30 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endif
#endif
/* Memory buffer must fit two matrix subblocks of maximal size */
#define XSTR(x) STR(x)
#define STR(x) #x
#if BUFFER_SIZE < (SGEMM_DEFAULT_P * SGEMM_DEFAULT_Q * 4 * 2) || \
BUFFER_SIZE < (SGEMM_DEFAULT_P * SGEMM_DEFAULT_R * 4 * 2) || \
BUFFER_SIZE < (SGEMM_DEFAULT_R * SGEMM_DEFAULT_Q * 4 * 2)
#warning BUFFER_SIZE is too small for P, Q, and R of SGEMM - large calculations may crash !
#endif
#if BUFFER_SIZE < (DGEMM_DEFAULT_P * DGEMM_DEFAULT_Q * 8 * 2) || \
BUFFER_SIZE < (DGEMM_DEFAULT_P * DGEMM_DEFAULT_R * 8 * 2) || \
BUFFER_SIZE < (DGEMM_DEFAULT_R * DGEMM_DEFAULT_Q * 8 * 2)
#warning BUFFER_SIZE is too small for P, Q, and R of DGEMM - large calculations may crash !
#endif
#if BUFFER_SIZE < (CGEMM_DEFAULT_P * CGEMM_DEFAULT_Q * 8 * 2) || \
BUFFER_SIZE < (CGEMM_DEFAULT_P * CGEMM_DEFAULT_R * 8 * 2) || \
BUFFER_SIZE < (CGEMM_DEFAULT_R * CGEMM_DEFAULT_Q * 8 * 2)
#warning BUFFER_SIZE is too small for P, Q, and R of CGEMM - large calculations may crash !
#endif
#if BUFFER_SIZE < (ZGEMM_DEFAULT_P * ZGEMM_DEFAULT_Q * 16 * 2) || \
BUFFER_SIZE < (ZGEMM_DEFAULT_P * ZGEMM_DEFAULT_R * 16 * 2) || \
BUFFER_SIZE < (ZGEMM_DEFAULT_R * ZGEMM_DEFAULT_Q * 16 * 2)
#warning BUFFER_SIZE is too small for P, Q, and R of ZGEMM - large calculations may crash !
#endif
#if defined(COMPILE_TLS)
#include <errno.h>
@ -2740,7 +2764,7 @@ void *blas_memory_alloc(int procpos){
#ifdef DEBUG
printf(" Position -> %d\n", position);
#endif
WMB;
memory[position].used = 1;
#if (defined(SMP) || defined(USE_LOCKING)) && !defined(USE_OPENMP)
UNLOCK_COMMAND(&alloc_lock);