Generate keypair file for c program deployment (#15080) (#15110)

* Generate keypair file for c program deployment

* Build and use solana-keygen in test-stable-perf

(cherry picked from commit bba1b49663)

Co-authored-by: Jack May <jack@solana.com>

sdk/bpf/c/bpf.mk

@@ -168,6 +168,11 @@ $1: $2
 	@echo "[lld] $1 ($2)"
 	$(_@)mkdir -p $(dir $1)
 	$(_@)$(LLD) $(BPF_LLD_FLAGS) -o $1 $2
+ifeq (,$(wildcard $(subst .so,-keypair.json,$1)))
+	$(_@)solana-keygen new --no-passphrase --silent -o $(subst .so,-keypair.json,$1)
+endif
+	@echo To deploy this program:
+	@echo $$$$ solana program deploy $(realpath $1)
 endef
 
 define TEST_C_RULE