arm: Use .data.rel.ro for const data with relocations

[ffmpeg] / libavutil / cpu.c

diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 25af4c5580f7db6ae64b965e7fc0dcc04e7bddc0..354d21e76f3ce01a09abaa61b29087e90aed172e 100644 (file)
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -51,9 +51,14 @@ int av_get_cpu_flags(void)
     if (checked)
         return flags;
 
-    if (ARCH_ARM) flags = ff_get_cpu_flags_arm();
-    if (ARCH_PPC) flags = ff_get_cpu_flags_ppc();
-    if (ARCH_X86) flags = ff_get_cpu_flags_x86();
+    if (ARCH_AARCH64)
+        flags = ff_get_cpu_flags_aarch64();
+    if (ARCH_ARM)
+        flags = ff_get_cpu_flags_arm();
+    if (ARCH_PPC)
+        flags = ff_get_cpu_flags_ppc();
+    if (ARCH_X86)
+        flags = ff_get_cpu_flags_x86();
 
     flags  &= cpuflags_mask;
     checked = 1;
@@ -82,8 +87,11 @@ int av_parse_cpu_flags(const char *s)
 #define CPUFLAG_SSE42    (AV_CPU_FLAG_SSE42    | CPUFLAG_SSE4)
 #define CPUFLAG_AVX      (AV_CPU_FLAG_AVX      | CPUFLAG_SSE42)
 #define CPUFLAG_XOP      (AV_CPU_FLAG_XOP      | CPUFLAG_AVX)
+#define CPUFLAG_FMA3     (AV_CPU_FLAG_FMA3     | CPUFLAG_AVX)
 #define CPUFLAG_FMA4     (AV_CPU_FLAG_FMA4     | CPUFLAG_AVX)
 #define CPUFLAG_AVX2     (AV_CPU_FLAG_AVX2     | CPUFLAG_AVX)
+#define CPUFLAG_BMI1     (AV_CPU_FLAG_BMI1)
+#define CPUFLAG_BMI2     (AV_CPU_FLAG_BMI2     | CPUFLAG_BMI1)
     static const AVOption cpuflags_opts[] = {
         { "flags"   , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
 #if   ARCH_PPC
@@ -102,8 +110,11 @@ int av_parse_cpu_flags(const char *s)
         { "sse4.2"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42        },    .unit = "flags" },
         { "avx"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX          },    .unit = "flags" },
         { "xop"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP          },    .unit = "flags" },
+        { "fma3"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3         },    .unit = "flags" },
         { "fma4"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4         },    .unit = "flags" },
         { "avx2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2         },    .unit = "flags" },
+        { "bmi1"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI1         },    .unit = "flags" },
+        { "bmi2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI2         },    .unit = "flags" },
         { "3dnow"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW        },    .unit = "flags" },
         { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT     },    .unit = "flags" },
         { "cmov",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV     },    .unit = "flags" },
@@ -114,6 +125,10 @@ int av_parse_cpu_flags(const char *s)
         { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
         { "vfpv3",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3    },    .unit = "flags" },
         { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+#elif ARCH_AARCH64
+        { "armv8",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8    },    .unit = "flags" },
+        { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+        { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
 #endif
         { NULL },
     };
@@ -165,12 +180,25 @@ int av_cpu_count(void)
 #ifdef TEST
 
 #include <stdio.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "avstring.h"
+
+#if !HAVE_GETOPT
+#include "compat/getopt.c"
+#endif
 
 static const struct {
     int flag;
     const char *name;
 } cpu_flag_tab[] = {
-#if   ARCH_ARM
+#if   ARCH_AARCH64
+    { AV_CPU_FLAG_ARMV8,     "armv8"      },
+    { AV_CPU_FLAG_NEON,      "neon"       },
+    { AV_CPU_FLAG_VFP,       "vfp"        },
+#elif ARCH_ARM
     { AV_CPU_FLAG_ARMV5TE,   "armv5te"    },
     { AV_CPU_FLAG_ARMV6,     "armv6"      },
     { AV_CPU_FLAG_ARMV6T2,   "armv6t2"    },
@@ -193,26 +221,73 @@ static const struct {
     { AV_CPU_FLAG_SSE42,     "sse4.2"     },
     { AV_CPU_FLAG_AVX,       "avx"        },
     { AV_CPU_FLAG_XOP,       "xop"        },
+    { AV_CPU_FLAG_FMA3,      "fma3"       },
     { AV_CPU_FLAG_FMA4,      "fma4"       },
     { AV_CPU_FLAG_3DNOW,     "3dnow"      },
     { AV_CPU_FLAG_3DNOWEXT,  "3dnowext"   },
     { AV_CPU_FLAG_CMOV,      "cmov"       },
     { AV_CPU_FLAG_AVX2,      "avx2"       },
+    { AV_CPU_FLAG_BMI1,      "bmi1"       },
+    { AV_CPU_FLAG_BMI2,      "bmi2"       },
 #endif
     { 0 }
 };
 
-int main(void)
+static void print_cpu_flags(int cpu_flags, const char *type)
 {
-    int cpu_flags = av_get_cpu_flags();
     int i;
 
-    printf("cpu_flags = 0x%08X\n", cpu_flags);
-    printf("cpu_flags =");
+    fprintf(stderr, "cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
+    fprintf(stderr, "cpu_flags_str(%s) =", type);
     for (i = 0; cpu_flag_tab[i].flag; i++)
         if (cpu_flags & cpu_flag_tab[i].flag)
-            printf(" %s", cpu_flag_tab[i].name);
-    printf("\n");
+            fprintf(stderr, " %s", cpu_flag_tab[i].name);
+    fprintf(stderr, "\n");
+}
+
+
+int main(int argc, char **argv)
+{
+    int cpu_flags_raw = av_get_cpu_flags();
+    int cpu_flags_eff;
+    int cpu_count = av_cpu_count();
+    char threads[5] = "auto";
+
+    if (cpu_flags_raw < 0)
+        return 1;
+
+    for (;;) {
+        int c = getopt(argc, argv, "c:t:");
+        if (c == -1)
+            break;
+        switch (c) {
+        case 'c':
+        {
+            int cpuflags = av_parse_cpu_flags(optarg);
+            if (cpuflags < 0)
+                return 2;
+            av_set_cpu_flags_mask(cpuflags);
+            break;
+        }
+        case 't':
+        {
+            int len = av_strlcpy(threads, optarg, sizeof(threads));
+            if (len >= sizeof(threads)) {
+                fprintf(stderr, "Invalid thread count '%s'\n", optarg);
+                return 2;
+            }
+        }
+        }
+    }
+
+    cpu_flags_eff = av_get_cpu_flags();
+
+    if (cpu_flags_eff < 0)
+        return 3;
+
+    print_cpu_flags(cpu_flags_raw, "raw");
+    print_cpu_flags(cpu_flags_eff, "effective");
+    fprintf(stderr, "threads = %s (cpu_count = %d)\n", threads, cpu_count);
 
     return 0;
 }