Do not build P10-specific Chacha20 assembler on AIX

Fixes #18145 Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from #19865)
openssl · Dec 14, 2022 · cdcc439 · cdcc439
1 parent cda5515
commit cdcc439
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Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/crypto/chacha/build.info b/crypto/chacha/build.info
@@ -12,7 +12,10 @@ IF[{- !$disabled{asm} -}]
   $CHACHAASM_armv4=chacha-armv4.S
   $CHACHAASM_aarch64=chacha-armv8.S chacha-armv8-sve.S
 
-  $CHACHAASM_ppc32=chacha_ppc.c chacha-ppc.s chachap10-ppc.s
+  $CHACHAASM_ppc32=chacha_ppc.c chacha-ppc.s
+  IF[{- $target{sys_id} ne "AIX" -}]
+    $CHACHAASM_ppc32=chacha_ppc.c chacha-ppc.s chachap10-ppc.s
+  ENDIF
   $CHACHAASM_ppc64=$CHACHAASM_ppc32
 
   $CHACHAASM_c64xplus=chacha-c64xplus.s

diff --git a/crypto/chacha/chacha_ppc.c b/crypto/chacha/chacha_ppc.c
@@ -30,9 +30,11 @@ void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
                     size_t len, const unsigned int key[8],
                     const unsigned int counter[4])
 {
+#ifndef OPENSSL_SYS_AIX
     OPENSSL_ppccap_P & PPC_BRD31
-        ? ChaCha20_ctr32_vsx_p10(out, inp, len, key, counter)
-        :OPENSSL_ppccap_P & PPC_CRYPTO207
+        ? ChaCha20_ctr32_vsx_p10(out, inp, len, key, counter) :
+#endif
+          OPENSSL_ppccap_P & PPC_CRYPTO207
             ? ChaCha20_ctr32_vsx(out, inp, len, key, counter)
             : OPENSSL_ppccap_P & PPC_ALTIVEC
                  ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)