diff --git a/openair1/PHY/TOOLS/lte_dfts.c b/openair1/PHY/TOOLS/lte_dfts.c
index 00e1b0b5cef1f313e58305a66bb0ba71c968cba8..b50e6c5e3425de2a41122123219022ec15eb257c 100644
--- a/openair1/PHY/TOOLS/lte_dfts.c
+++ b/openair1/PHY/TOOLS/lte_dfts.c
@@ -58,10 +58,10 @@
#define print_ints(s,x) printf("%s %d %d %d %d\n",s,(x)[0],(x)[1],(x)[2],(x)[3])
-static int16_t conjugatedft[32] __attribute__((aligned(32))) = {-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1};
+const static int16_t conjugatedft[32] __attribute__((aligned(32))) = {-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1};
-static int16_t reflip[32] __attribute__((aligned(32))) = {1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1};
+const static int16_t reflip[32] __attribute__((aligned(32))) = {1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1};
#if defined(__x86_64__) || defined(__i386__)
static inline void cmac(__m128i a,__m128i b, __m128i *re32, __m128i *im32) __attribute__((always_inline));
@@ -474,33 +474,33 @@ static inline int16x8_t packed_cmult2(int16x8_t a,int16x8_t b, int16x8_t b2)
#endif
-static int16_t W0s[16]__attribute__((aligned(32))) = {32767,0,32767,0,32767,0,32767,0,32767,0,32767,0,32767,0,32767,0};
+const static int16_t W0s[16]__attribute__((aligned(32))) = {32767,0,32767,0,32767,0,32767,0,32767,0,32767,0,32767,0,32767,0};
-static int16_t W13s[16]__attribute__((aligned(32))) = {-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378};
-static int16_t W23s[16]__attribute__((aligned(32))) = {-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378};
+const static int16_t W13s[16]__attribute__((aligned(32))) = {-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378,-16384,-28378};
+const static int16_t W23s[16]__attribute__((aligned(32))) = {-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378,-16384,28378};
-static int16_t W15s[16]__attribute__((aligned(32))) = {10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163};
-static int16_t W25s[16]__attribute__((aligned(32))) = {-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260};
-static int16_t W35s[16]__attribute__((aligned(32))) = {-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260};
-static int16_t W45s[16]__attribute__((aligned(32))) = {10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163};
+const static int16_t W15s[16]__attribute__((aligned(32))) = {10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163,10126,-31163};
+const static int16_t W25s[16]__attribute__((aligned(32))) = {-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260,-26509,-19260};
+const static int16_t W35s[16]__attribute__((aligned(32))) = {-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260,-26510,19260};
+const static int16_t W45s[16]__attribute__((aligned(32))) = {10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163,10126,31163};
#if defined(__x86_64__) || defined(__i386__)
-__m128i *W0 = (__m128i *)W0s;
-__m128i *W13 = (__m128i *)W13s;
-__m128i *W23 = (__m128i *)W23s;
-__m128i *W15 = (__m128i *)W15s;
-__m128i *W25 = (__m128i *)W25s;
-__m128i *W35 = (__m128i *)W35s;
-__m128i *W45 = (__m128i *)W45s;
+const __m128i *W0 = (__m128i *)W0s;
+const __m128i *W13 = (__m128i *)W13s;
+const __m128i *W23 = (__m128i *)W23s;
+const __m128i *W15 = (__m128i *)W15s;
+const __m128i *W25 = (__m128i *)W25s;
+const __m128i *W35 = (__m128i *)W35s;
+const __m128i *W45 = (__m128i *)W45s;
#ifdef __AVX2__
-__m256i *W0_256 = (__m256i *)W0s;
-__m256i *W13_256 = (__m256i *)W13s;
-__m256i *W23_256 = (__m256i *)W23s;
-__m256i *W15_256 = (__m256i *)W15s;
-__m256i *W25_256 = (__m256i *)W25s;
-__m256i *W35_256 = (__m256i *)W35s;
-__m256i *W45_256 = (__m256i *)W45s;
+const __m256i *W0_256 = (__m256i *)W0s;
+const __m256i *W13_256 = (__m256i *)W13s;
+const __m256i *W23_256 = (__m256i *)W23s;
+const __m256i *W15_256 = (__m256i *)W15s;
+const __m256i *W25_256 = (__m256i *)W25s;
+const __m256i *W35_256 = (__m256i *)W35s;
+const __m256i *W45_256 = (__m256i *)W45s;
#endif
#elif defined(__arm__)
@@ -512,23 +512,23 @@ int16x8_t *W25 = (int16x8_t *)W25s;
int16x8_t *W35 = (int16x8_t *)W35s;
int16x8_t *W45 = (int16x8_t *)W45s;
#endif
-static int16_t dft_norm_table[16] = {9459, //12
- 6689,//24
- 5461,//36
- 4729,//482
- 4230,//60
- 23170,//72
- 3344,//96
- 3153,//108
- 2991,//120
- 18918,//sqrt(3),//144
- 18918,//sqrt(3),//180
- 16384,//2, //192
- 18918,//sqrt(3), // 216
- 16384,//2, //240
- 18918,//sqrt(3), // 288
- 14654
- }; //sqrt(5) //300
+const static int16_t dft_norm_table[16] = {9459, //12
+ 6689,//24
+ 5461,//36
+ 4729,//482
+ 4230,//60
+ 23170,//72
+ 3344,//96
+ 3153,//108
+ 2991,//120
+ 18918,//sqrt(3),//144
+ 18918,//sqrt(3),//180
+ 16384,//2, //192
+ 18918,//sqrt(3), // 216
+ 16384,//2, //240
+ 18918,//sqrt(3), // 288
+ 14654
+}; //sqrt(5) //300
#if defined(__x86_64__) || defined(__i386__)
@@ -2036,42 +2036,42 @@ static inline void transpose4_ooff(int16x4_t *x,int16x4_t *y,int off)
// 16-point optimized DFT kernel
-int16_t tw16[24] __attribute__((aligned(32))) = { 32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,
+const static int16_t tw16[24] __attribute__((aligned(32))) = { 32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,
32767,0,23169,-23170,0 ,-32767,-23170,-23170,
32767,0,12539,-30273,-23170,-23170,-30273,12539
};
-int16_t tw16a[24] __attribute__((aligned(32))) = {32767,0,30272,12540,23169 ,23170,12539 ,30273,
+const static int16_t tw16a[24] __attribute__((aligned(32))) = {32767,0,30272,12540,23169 ,23170,12539 ,30273,
32767,0,23169,23170,0 ,32767,-23170,23170,
32767,0,12539,30273,-23170,23170,-30273,-12539
};
-int16_t tw16b[24] __attribute__((aligned(32))) = { 0,32767,-12540,30272,-23170,23169 ,-30273,12539,
+const static int16_t tw16b[24] __attribute__((aligned(32))) = { 0,32767,-12540,30272,-23170,23169 ,-30273,12539,
0,32767,-23170,23169,-32767,0 ,-23170,-23170,
0,32767,-30273,12539,-23170,-23170,12539 ,-30273
};
-int16_t tw16c[24] __attribute__((aligned(32))) = { 0,32767,12540,30272,23170,23169 ,30273 ,12539,
+const static int16_t tw16c[24] __attribute__((aligned(32))) = { 0,32767,12540,30272,23170,23169 ,30273 ,12539,
0,32767,23170,23169,32767,0 ,23170 ,-23170,
0,32767,30273,12539,23170,-23170,-12539,-30273
};
-int16_t tw16rep[48] __attribute__((aligned(32))) = { 32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,
+const static int16_t tw16rep[48] __attribute__((aligned(32))) = { 32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,32767,0,30272,-12540,23169 ,-23170,12539 ,-30273,
32767,0,23169,-23170,0 ,-32767,-23170,-23170,32767,0,23169,-23170,0 ,-32767,-23170,-23170,
32767,0,12539,-30273,-23170,-23170,-30273,12539,32767,0,12539,-30273,-23170,-23170,-30273,12539
};
-int16_t tw16arep[48] __attribute__((aligned(32))) = {32767,0,30272,12540,23169 ,23170,12539 ,30273,32767,0,30272,12540,23169 ,23170,12539 ,30273,
+const static int16_t tw16arep[48] __attribute__((aligned(32))) = {32767,0,30272,12540,23169 ,23170,12539 ,30273,32767,0,30272,12540,23169 ,23170,12539 ,30273,
32767,0,23169,23170,0 ,32767,-23170,23170,32767,0,23169,23170,0 ,32767,-23170,23170,
32767,0,12539,30273,-23170,23170,-30273,-12539,32767,0,12539,30273,-23170,23170,-30273,-12539
};
-int16_t tw16brep[48] __attribute__((aligned(32))) = { 0,32767,-12540,30272,-23170,23169 ,-30273,12539,0,32767,-12540,30272,-23170,23169 ,-30273,12539,
+const static int16_t tw16brep[48] __attribute__((aligned(32))) = { 0,32767,-12540,30272,-23170,23169 ,-30273,12539,0,32767,-12540,30272,-23170,23169 ,-30273,12539,
0,32767,-23170,23169,-32767,0 ,-23170,-23170,0,32767,-23170,23169,-32767,0 ,-23170,-23170,
0,32767,-30273,12539,-23170,-23170,12539 ,-30273,0,32767,-30273,12539,-23170,-23170,12539 ,-30273
};
-int16_t tw16crep[48] __attribute__((aligned(32))) = { 0,32767,12540,30272,23170,23169 ,30273 ,12539,0,32767,12540,30272,23170,23169 ,30273 ,12539,
+const static int16_t tw16crep[48] __attribute__((aligned(32))) = { 0,32767,12540,30272,23170,23169 ,30273 ,12539,0,32767,12540,30272,23170,23169 ,30273 ,12539,
0,32767,23170,23169,32767,0 ,23170 ,-23170,0,32767,23170,23169,32767,0 ,23170 ,-23170,
0,32767,30273,12539,23170,-23170,-12539,-30273,0,32767,30273,12539,23170,-23170,-12539,-30273
};
@@ -2502,7 +2502,7 @@ static inline void idft16_simd256(int16_t *x,int16_t *y)
// 64-point optimized DFT
-int16_t tw64[96] __attribute__((aligned(32))) = {
+const static int16_t tw64[96] __attribute__((aligned(32))) = {
32767,0,32609,-3212,32137,-6393,31356,-9512,
30272,-12540,28897,-15447,27244,-18205,25329,-20788,
23169,-23170,20787,-25330,18204,-27245,15446,-28898,
@@ -2517,7 +2517,7 @@ int16_t tw64[96] __attribute__((aligned(32))) = {
-30273,12539,-25330,20787,-18205,27244,-9512,31356
};
-int16_t tw64rep[192] __attribute__((aligned(32))) = {
+const static int16_t tw64rep[192] __attribute__((aligned(32))) = {
32767,0,32609,-3212,32137,-6393,31356,-9512,32767,0,32609,-3212,32137,-6393,31356,-9512,
30272,-12540,28897,-15447,27244,-18205,25329,-20788,30272,-12540,28897,-15447,27244,-18205,25329,-20788,
23169,-23170,20787,-25330,18204,-27245,15446,-28898,23169,-23170,20787,-25330,18204,-27245,15446,-28898,
@@ -2532,7 +2532,7 @@ int16_t tw64rep[192] __attribute__((aligned(32))) = {
-30273,12539,-25330,20787,-18205,27244,-9512,31356,-30273,12539,-25330,20787,-18205,27244,-9512,31356
};
-int16_t tw64a[96] __attribute__((aligned(32))) = {
+const static int16_t tw64a[96] __attribute__((aligned(32))) = {
32767,0,32609,3212,32137,6393,31356,9512,
30272,12540,28897,15447,27244,18205,25329,20788,
23169,23170,20787,25330,18204,27245,15446,28898,
@@ -2546,7 +2546,7 @@ int16_t tw64a[96] __attribute__((aligned(32))) = {
-23170,23170,-28898,15447,-32138,6393,-32610,-3211,
-30273,-12539,-25330,-20787,-18205,-27244,-9512,-31356
};
-int16_t tw64arep[192] __attribute__((aligned(32))) = {
+const static int16_t tw64arep[192] __attribute__((aligned(32))) = {
32767,0,32609,3212,32137,6393,31356,9512,32767,0,32609,3212,32137,6393,31356,9512,
30272,12540,28897,15447,27244,18205,25329,20788,30272,12540,28897,15447,27244,18205,25329,20788,
23169,23170,20787,25330,18204,27245,15446,28898,23169,23170,20787,25330,18204,27245,15446,28898,
@@ -2561,7 +2561,7 @@ int16_t tw64arep[192] __attribute__((aligned(32))) = {
-30273,-12539,-25330,-20787,-18205,-27244,-9512,-31356,-30273,-12539,-25330,-20787,-18205,-27244,-9512,-31356
};
-int16_t tw64b[96] __attribute__((aligned(32))) = {
+const static int16_t tw64b[96] __attribute__((aligned(32))) = {
0,32767,-3212,32609,-6393,32137,-9512,31356,
-12540,30272,-15447,28897,-18205,27244,-20788,25329,
-23170,23169,-25330,20787,-27245,18204,-28898,15446,
@@ -2576,7 +2576,7 @@ int16_t tw64b[96] __attribute__((aligned(32))) = {
12539,-30273,20787,-25330,27244,-18205,31356,-9512
};
-int16_t tw64brep[192] __attribute__((aligned(32))) = {
+const static int16_t tw64brep[192] __attribute__((aligned(32))) = {
0,32767,-3212,32609,-6393,32137,-9512,31356,0,32767,-3212,32609,-6393,32137,-9512,31356,
-12540,30272,-15447,28897,-18205,27244,-20788,25329,-12540,30272,-15447,28897,-18205,27244,-20788,25329,
-23170,23169,-25330,20787,-27245,18204,-28898,15446,-23170,23169,-25330,20787,-27245,18204,-28898,15446,
@@ -2591,7 +2591,7 @@ int16_t tw64brep[192] __attribute__((aligned(32))) = {
12539,-30273,20787,-25330,27244,-18205,31356,-9512,12539,-30273,20787,-25330,27244,-18205,31356,-9512
};
-int16_t tw64c[96] __attribute__((aligned(32))) = {
+const static int16_t tw64c[96] __attribute__((aligned(32))) = {
0,32767,3212,32609,6393,32137,9512,31356,
12540,30272,15447,28897,18205,27244,20788,25329,
23170,23169,25330,20787,27245,18204,28898,15446,
@@ -2606,7 +2606,7 @@ int16_t tw64c[96] __attribute__((aligned(32))) = {
-12539,-30273,-20787,-25330,-27244,-18205,-31356,-9512
};
-int16_t tw64crep[192] __attribute__((aligned(32))) = {
+const static int16_t tw64crep[192] __attribute__((aligned(32))) = {
0,32767,3212,32609,6393,32137,9512,31356,0,32767,3212,32609,6393,32137,9512,31356,
12540,30272,15447,28897,18205,27244,20788,25329,12540,30272,15447,28897,18205,27244,20788,25329,
23170,23169,25330,20787,27245,18204,28898,15446,23170,23169,25330,20787,27245,18204,28898,15446,