From: Mika Lindqvist <postmaster@raasu.org>
Date: Tue, 6 Feb 2018 08:16:44 +0000 (+0200)
Subject: [ARM/AArch64] Allow disabling NEON support in adler32_stub.
X-Git-Tag: 1.9.9-b1~651
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5478c6e8ac4b2a99c186f3bb642491f2d8628c75;p=thirdparty%2Fzlib-ng.git

[ARM/AArch64] Allow disabling NEON support in adler32_stub.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 07a98e7f6..01a75647d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -401,6 +401,7 @@ if(WITH_OPTIM)
         endif()
         if(WITH_NEON)
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NEONFLAG}")
+            add_definitions("-DARM_NEON_ADLER32")
             if(MSVC)
                 add_definitions("-D__ARM_NEON__=1")
             endif(MSVC)
@@ -415,6 +416,7 @@ if(WITH_OPTIM)
         endif()
         # We need to check WITH_NEON first
         if(WITH_NEON)
+            add_definitions("-DARM_NEON_ADLER32")
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NEONFLAG}")
             set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/adler32_neon.c)
             add_feature_info(NEON_FILLWINDOW 1 "Support NEON instructions in fill_window_arm, using \"${NEONFLAG}\"")
diff --git a/configure b/configure
index 26a1544b3..595713f2e 100755
--- a/configure
+++ b/configure
@@ -876,8 +876,8 @@ case "${ARCH}" in
                 SFLAGS="${SFLAGS} -DUNALIGNED_OK -DUNROLL_LESS"
 
                 if test $buildneon -eq 1; then
-                    CFLAGS="${CFLAGS} ${floatabi} -mfpu=neon"
-                    SFLAGS="${SFLAGS} ${floatabi} -mfpu=neon"
+                    CFLAGS="${CFLAGS} ${floatabi} -mfpu=neon -DARM_NEON_ADLER32"
+                    SFLAGS="${SFLAGS} ${floatabi} -mfpu=neon -DARM_NEON_ADLER32"
 
                     ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} adler32_neon.o"
                     ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} adler32_neon.lo"
@@ -891,8 +891,8 @@ case "${ARCH}" in
                 ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} crc32_acle.lo insert_string_acle.lo"
 
                 if test $buildneon -eq 1; then
-                    CFLAGS="${CFLAGS} ${floatabi} -mfpu=neon"
-                    SFLAGS="${SFLAGS} ${floatabi} -mfpu=neon"
+                    CFLAGS="${CFLAGS} ${floatabi} -mfpu=neon -DARM_NEON_ADLER32"
+                    SFLAGS="${SFLAGS} ${floatabi} -mfpu=neon -DARM_NEON_ADLER32"
 
                     ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} adler32_neon.o"
                     ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} adler32_neon.lo"
@@ -925,6 +925,8 @@ case "${ARCH}" in
             if test $native -eq 0; then
                 ARCH="${ARCH}+simd"
             fi
+            CFLAGS="${CFLAGS} -DARM_NEON_ADLER32"
+            SFLAGS="${SFLAGS} -DARM_NEON_ADLER32"
             ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} adler32_neon.o"
             ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} adler32_neon.lo"
         fi
diff --git a/functable.c b/functable.c
index 659e3fbd0..06dc41fb1 100644
--- a/functable.c
+++ b/functable.c
@@ -28,7 +28,7 @@ extern void fill_window_arm(deflate_state *s);
 
 /* adler32 */
 extern uint32_t adler32_c(uint32_t adler, const unsigned char *buf, size_t len);
-#if (defined(__ARM_NEON__) || defined(__ARM_NEON))
+#if ((defined(__ARM_NEON__) || defined(__ARM_NEON)) && defined(ARM_NEON_ADLER32))
 extern uint32_t adler32_neon(uint32_t adler, const unsigned char *buf, size_t len);
 #endif
 
@@ -76,7 +76,7 @@ ZLIB_INTERNAL uint32_t adler32_stub(uint32_t adler, const unsigned char *buf, si
     // Initialize default
     functable.adler32=&adler32_c;
 
-    #if (defined(__ARM_NEON__) || defined(__ARM_NEON))
+    #if ((defined(__ARM_NEON__) || defined(__ARM_NEON)) && defined(ARM_NEON_ADLER32))
         functable.adler32=&adler32_neon;
     #endif