[v1.03] Add common soc.c/.h for both ARM and RISC-V

src/common/printer.c

@@ -20,6 +20,7 @@
   #include "../arm/uarch.h"
   #include "../arm/midr.h"
   #include "../arm/soc.h"
+  #include "../common/soc.h"
 #elif ARCH_RISCV
   #include "../riscv/riscv.h"
   #include "../riscv/uarch.h"

src/common/soc.c

@@ -0,0 +1,75 @@
+#include "soc.h"
+#ifdef ARCH_ARM
+  #include "../arm/socs.h"
+#elif ARCH_RISCV
+  #include "../riscv/socs.h"
+#endif
+#include "udev.h"
+#include "../common/global.h"
+
+#include <string.h>
+
+static char* soc_trademark_string[] = {
+  // ARM
+  [SOC_VENDOR_SNAPDRAGON] = "Snapdragon ",
+  [SOC_VENDOR_MEDIATEK]   = "MediaTek ",
+  [SOC_VENDOR_EXYNOS]     = "Exynos ",
+  [SOC_VENDOR_KIRIN]      = "Kirin ",
+  [SOC_VENDOR_BROADCOM]   = "Broadcom BCM",
+  [SOC_VENDOR_APPLE]      = "Apple ",
+  [SOC_VENDOR_ROCKCHIP]   = "Rockchip ",
+  // RISC-V
+  [SOC_VENDOR_SIFIVE]     = "SiFive ",
+  [SOC_VENDOR_STARFIVE]   = "StarFive ",
+  // ARM & RISC-V
+  [SOC_VENDOR_ALLWINNER]  = "Allwinner "
+};
+
+VENDOR get_soc_vendor(struct system_on_chip* soc) {
+  return soc->soc_vendor;
+}
+
+char* get_str_process(struct system_on_chip* soc) {
+  char* str;
+
+  if(soc->process == UNKNOWN) {
+    str = emalloc(sizeof(char) * (strlen(STRING_UNKNOWN)+1));
+    snprintf(str, strlen(STRING_UNKNOWN)+1, STRING_UNKNOWN);
+  }
+  else {
+    str = emalloc(sizeof(char) * 5);
+    memset(str, 0, sizeof(char) * 5);
+    snprintf(str, 5, "%dnm", soc->process);
+  }
+  return str;
+}
+
+char* get_soc_name(struct system_on_chip* soc) {
+  if(soc->soc_model == SOC_MODEL_UNKNOWN)
+    return soc->raw_name;
+  return soc->soc_name;
+}
+
+void fill_soc(struct system_on_chip* soc, char* soc_name, SOC soc_model, int32_t process) {
+  soc->soc_model = soc_model;
+  soc->soc_vendor = get_soc_vendor_from_soc(soc_model);
+  soc->process = process;
+  int len = strlen(soc_name) + strlen(soc_trademark_string[soc->soc_vendor]) + 1;
+  soc->soc_name = emalloc(sizeof(char) * len);
+  memset(soc->soc_name, 0, sizeof(char) * len);
+  sprintf(soc->soc_name, "%s%s", soc_trademark_string[soc->soc_vendor], soc_name);
+}
+
+bool match_soc(struct system_on_chip* soc, char* raw_name, char* expected_name, char* soc_name, SOC soc_model, int32_t process) {
+  int len1 = strlen(raw_name);
+  int len2 = strlen(expected_name);
+  int len = min(len1, len2);
+
+  if(strncmp(raw_name, expected_name, len) != 0) {
+    return false;
+  }
+  else {
+    fill_soc(soc, soc_name, soc_model, process);
+    return true;
+  }
+}

src/common/soc.h

@@ -0,0 +1,52 @@
+#ifndef __SOC__
+#define __SOC__
+
+// NOTE:
+// soc.c/soc.h are used by
+// ARM and RISC-V backends
+
+#include "../common/cpu.h"
+#include <stdint.h>
+
+#define UNKNOWN -1
+
+typedef int32_t SOC;
+
+enum {
+  SOC_VENDOR_UNKNOWN,
+  // ARM
+  SOC_VENDOR_SNAPDRAGON,
+  SOC_VENDOR_MEDIATEK,
+  SOC_VENDOR_EXYNOS,
+  SOC_VENDOR_KIRIN,
+  SOC_VENDOR_BROADCOM,
+  SOC_VENDOR_APPLE,
+  SOC_VENDOR_ROCKCHIP,
+  // RISC-V
+  SOC_VENDOR_SIFIVE,
+  SOC_VENDOR_STARFIVE,
+  // ARM & RISC-V
+  SOC_VENDOR_ALLWINNER
+};
+
+struct system_on_chip {
+  SOC soc_model;
+  VENDOR soc_vendor;
+  int32_t process;
+  char* soc_name;
+  char* raw_name;
+};
+
+struct system_on_chip* get_soc(void);
+char* get_soc_name(struct system_on_chip* soc);
+VENDOR get_soc_vendor(struct system_on_chip* soc);
+bool match_soc(struct system_on_chip* soc, char* raw_name, char* expected_name, char* soc_name, SOC soc_model, int32_t process);
+char* get_str_process(struct system_on_chip* soc);
+void fill_soc(struct system_on_chip* soc, char* soc_name, SOC soc_model, int32_t process);
+
+#define SOC_START if (false) {}
+#define SOC_EQ(raw_name, expected_name, soc_name, soc_model, soc, process) \
+   else if (match_soc(soc, raw_name, expected_name, soc_name, soc_model, process)) return true;
+#define SOC_END else { return false; }
+
+#endif