diff --git a/libavutil/arm/float_dsp_init_arm.c b/libavutil/arm/float_dsp_init_arm.c
index b133d32c9a8e1806a20ab8a8096bb0e10922246a..e45969e2eb8a960d4578e9ffab84c4fd43ec61b2 100644
--- a/libavutil/arm/float_dsp_init_arm.c
+++ b/libavutil/arm/float_dsp_init_arm.c
@@ -18,11 +18,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/attributes.h"
 #include "libavutil/float_dsp.h"
 #include "cpu.h"
 #include "float_dsp_arm.h"
 
-void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp)
+av_cold void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp)
 {
     int cpu_flags = av_get_cpu_flags();
 
diff --git a/libavutil/arm/float_dsp_init_neon.c b/libavutil/arm/float_dsp_init_neon.c
index a7245ad92b966df3400818c8261ddd3ffe57559c..617bf5d576c2ce39fa3b17198f082b15a443e240 100644
--- a/libavutil/arm/float_dsp_init_neon.c
+++ b/libavutil/arm/float_dsp_init_neon.c
@@ -21,6 +21,7 @@
 
 #include <stdint.h>
 
+#include "libavutil/attributes.h"
 #include "libavutil/float_dsp.h"
 #include "float_dsp_arm.h"
 
@@ -45,7 +46,7 @@ void ff_butterflies_float_neon(float *v1, float *v2, int len);
 
 float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
 
-void ff_float_dsp_init_neon(AVFloatDSPContext *fdsp)
+av_cold void ff_float_dsp_init_neon(AVFloatDSPContext *fdsp)
 {
     fdsp->vector_fmul = ff_vector_fmul_neon;
     fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_neon;
diff --git a/libavutil/arm/float_dsp_init_vfp.c b/libavutil/arm/float_dsp_init_vfp.c
index 7247d567627f7e36f4244a808881225829bffd98..b6a226a4ddb8734da0ac81c91b77e75ad8fc0c66 100644
--- a/libavutil/arm/float_dsp_init_vfp.c
+++ b/libavutil/arm/float_dsp_init_vfp.c
@@ -18,6 +18,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/attributes.h"
 #include "libavutil/float_dsp.h"
 #include "cpu.h"
 #include "float_dsp_arm.h"
@@ -28,7 +29,7 @@ void ff_vector_fmul_vfp(float *dst, const float *src0, const float *src1,
 void ff_vector_fmul_reverse_vfp(float *dst, const float *src0,
                                 const float *src1, int len);
 
-void ff_float_dsp_init_vfp(AVFloatDSPContext *fdsp)
+av_cold void ff_float_dsp_init_vfp(AVFloatDSPContext *fdsp)
 {
     int cpu_flags = av_get_cpu_flags();
 
diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c
index a40b029a29ae8b5956430d335edee7b0a342aa8c..3eda27a3c3045b9c370d0e0d0b2e9dcb1b66d2b0 100644
--- a/libavutil/float_dsp.c
+++ b/libavutil/float_dsp.c
@@ -17,7 +17,7 @@
  */
 
 #include "config.h"
-
+#include "libavutil/attributes.h"
 #include "float_dsp.h"
 
 static void vector_fmul_c(float *dst, const float *src0, const float *src1,
@@ -112,7 +112,7 @@ float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len)
     return p;
 }
 
-void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
+av_cold void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
 {
     fdsp->vector_fmul = vector_fmul_c;
     fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
diff --git a/libavutil/hmac.c b/libavutil/hmac.c
index f82b5a3d77e709d89733c0098bb125a94a2c9510..f87728e181bdb8c5d1170041ba9ae58424ecb1d3 100644
--- a/libavutil/hmac.c
+++ b/libavutil/hmac.c
@@ -20,6 +20,7 @@
 
 #include <string.h>
 
+#include "attributes.h"
 #include "hmac.h"
 #include "md5.h"
 #include "sha.h"
@@ -38,7 +39,7 @@ struct AVHMAC {
     int keylen;
 };
 
-static void sha1_init(void *ctx)
+static av_cold void sha1_init(void *ctx)
 {
     av_sha_init(ctx, 160);
 }
diff --git a/libavutil/lls.c b/libavutil/lls.c
index bbcab6cf9fbb774076bf323326decdd05a45cc60..246189bdf73c511a52a204e4907784c97b4f28fe 100644
--- a/libavutil/lls.c
+++ b/libavutil/lls.c
@@ -28,10 +28,11 @@
 #include <math.h>
 #include <string.h>
 
+#include "attributes.h"
 #include "version.h"
 #include "lls.h"
 
-void avpriv_init_lls(LLSModel *m, int indep_count)
+av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
 {
     memset(m, 0, sizeof(LLSModel));
     m->indep_count = indep_count;
@@ -118,7 +119,7 @@ double avpriv_evaluate_lls(LLSModel *m, double *param, int order)
 }
 
 #if FF_API_LLS_PRIVATE
-void av_init_lls(LLSModel *m, int indep_count)
+av_cold void av_init_lls(LLSModel *m, int indep_count)
 {
     avpriv_init_lls(m, indep_count);
 }
diff --git a/libavutil/ppc/float_dsp_init.c b/libavutil/ppc/float_dsp_init.c
index bd682f5a3043c672eeda8fb8b0093ecda8694f5b..4ed278798e3d3a7a50d214b7d447c431632f4935 100644
--- a/libavutil/ppc/float_dsp_init.c
+++ b/libavutil/ppc/float_dsp_init.c
@@ -19,11 +19,12 @@
  */
 
 #include "config.h"
+#include "libavutil/attributes.h"
 #include "libavutil/cpu.h"
 #include "libavutil/float_dsp.h"
 #include "float_dsp_altivec.h"
 
-void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int bit_exact)
+av_cold void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int bit_exact)
 {
 #if HAVE_ALTIVEC
     int mm_flags = av_get_cpu_flags();
diff --git a/libavutil/sha.c b/libavutil/sha.c
index c7c6ce38cfc04ead96fc606840bc366a5467a4ef..2d9b58cda65502f63fc15b09164ad87f6345b9b6 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -22,6 +22,8 @@
  */
 
 #include <string.h>
+
+#include "attributes.h"
 #include "avutil.h"
 #include "bswap.h"
 #include "sha.h"
@@ -251,7 +253,7 @@ static void sha256_transform(uint32_t *state, const uint8_t buffer[64])
 }
 
 
-int av_sha_init(AVSHA* ctx, int bits)
+av_cold int av_sha_init(AVSHA *ctx, int bits)
 {
     ctx->digest_len = bits >> 5;
     switch (bits) {
diff --git a/libavutil/x86/float_dsp_init.c b/libavutil/x86/float_dsp_init.c
index 34863013ccff052bc371c764244715edfaf67ecc..03925da1117d06a05417b700ff7be09892482415 100644
--- a/libavutil/x86/float_dsp_init.c
+++ b/libavutil/x86/float_dsp_init.c
@@ -18,6 +18,7 @@
 
 #include "config.h"
 
+#include "libavutil/attributes.h"
 #include "libavutil/cpu.h"
 #include "libavutil/float_dsp.h"
 #include "cpu.h"
@@ -121,7 +122,7 @@ static void vector_fmul_window_sse(float *dst, const float *src0,
 }
 #endif /* HAVE_6REGS && HAVE_INLINE_ASM */
 
-void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
+av_cold void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
 {
     int mm_flags = av_get_cpu_flags();