tree 866051cf8e8a9cb2896fde1f5ba7d70697df987a
parent 533a7283922d9702c59e54360d3fca53314044c0
author Gilles Peskine <Gilles.Peskine@arm.com> 1638984339 +0100
committer Gilles Peskine <Gilles.Peskine@arm.com> 1638984415 +0100

mbedtls_ssl_handshake_params: move group_list earlier to save code size

Placing group_list earlier seems to help significantly, not just as a matter
of placing it in the 128-element (512-byte) access window.

Results (arm-none-eabi-gcc 7.3.1, build_arm_none_eabi_gcc_m0plus build):
library/ssl_cli.o: 19559 -> 19551 (diff: 8)
library/ssl_msg.o: 24690 -> 24674 (diff: 16)
library/ssl_srv.o: 20418 -> 20406 (diff: 12)
library/ssl_tls.o: 20555 -> 20519 (diff: 36)
library/ssl_tls13_client.o: 7244 -> 7240 (diff: 4)
library/ssl_tls13_generic.o: 4693 -> 4697 (diff: -4)

Results (same architecture, config-suite-b.h + MBEDTLS_ECDH_LEGACY_CONTEXT +
MBEDTLS_ECP_RESTARTABLE):
library/ssl_cli.o: 2864 -> 2860 (diff: 4)
library/ssl_tls.o: 6566 -> 6546 (diff: 20)

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>