syscall/names: export the syscall name in STUB module

Signed-off-by: chao.an <anchao@xiaomi.com>

arch/arm/src/armv7-a/arm_syscall.c

@@ -58,7 +58,18 @@ static void dump_syscall(const char *tag, uint32_t cmd, const uint32_t *regs)
    * and R1..R7 =  variable number of arguments depending on the system call.
    */
 
+#ifdef CONFIG_LIB_SYSCALL
+  if (cmd >= CONFIG_SYS_RESERVED)
+    {
+      svcinfo("SYSCALL %s: regs: %p cmd: %" PRId32 " name: %s\n", tag,
+              regs, cmd, g_funcnames[cmd - CONFIG_SYS_RESERVED]);
+    }
+  else
+#endif
+    {
       svcinfo("SYSCALL %s: regs: %p cmd: %" PRId32 "\n", tag, regs, cmd);
+    }
+
   svcinfo("  R0: %08" PRIx32 " %08" PRIx32 " %08" PRIx32 " %08" PRIx32
           " %08" PRIx32 " %08" PRIx32 " %08" PRIx32 " %08" PRIx32 "\n",
           regs[REG_R0],  regs[REG_R1],  regs[REG_R2],  regs[REG_R3],

arch/arm/src/armv7-r/arm_syscall.c

@@ -55,7 +55,18 @@ static void dump_syscall(const char *tag, uint32_t cmd, const uint32_t *regs)
    * and R1..R7 =  variable number of arguments depending on the system call.
    */
 
+#ifdef CONFIG_LIB_SYSCALL
+  if (cmd >= CONFIG_SYS_RESERVED)
+    {
+      svcinfo("SYSCALL %s: regs: %p cmd: %" PRId32 " name: %s\n", tag,
+              regs, cmd, g_funcnames[cmd - CONFIG_SYS_RESERVED]);
+    }
+  else
+#endif
+    {
       svcinfo("SYSCALL %s: regs: %p cmd: %" PRId32 "\n", tag, regs, cmd);
+    }
+
   svcinfo("  R0: %08" PRIx32 " %08" PRIx32 " %08" PRIx32 " %08" PRIx32
           " %08" PRIx32 " %08" PRIx32 " %08" PRIx32 " %08" PRIx32 "\n",
           regs[REG_R0],  regs[REG_R1],  regs[REG_R2],  regs[REG_R3],

include/sys/syscall.h

@@ -89,16 +89,12 @@ EXTERN const uintptr_t g_stublookup[SYS_nsyscalls];
 
 #endif
 
-#ifdef CONFIG_SCHED_INSTRUMENTATION_SYSCALL
-
 /* Given the system call number, the corresponding entry in this table
  * provides the name of the function.
  */
 
 EXTERN const char *g_funcnames[SYS_nsyscalls];
 
-#endif
-
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/

syscall/Makefile

@@ -27,6 +27,8 @@ include wraps/Make.defs
 MKSYSCALL = "$(TOPDIR)$(DELIM)tools$(DELIM)mksyscall$(HOSTEXEEXT)"
 CSVFILE = "$(TOPDIR)$(DELIM)syscall$(DELIM)syscall.csv"
 
+STUB_SRCS += syscall_names.c
+
 ifeq ($(CONFIG_SCHED_INSTRUMENTATION_SYSCALL),y)
 ifeq ($(CONFIG_LIB_SYSCALL),y)
 PROXY_SRCS += syscall_names.c