Add GLRO(dl_hwcap2) for new AT_HWCAP2 auxv_t a_type.

8 files changed, 27 insertions, 7 deletions

diff --git a/sysdeps/generic/dl-procinfo.h b/sysdeps/generic/dl-procinfo.h
index 90c87d942a..a184a5918a 100644
--- a/sysdeps/generic/dl-procinfo.h
+++ b/sysdeps/generic/dl-procinfo.h
@@ -21,7 +21,7 @@
 #define _DL_PROCINFO_H	1
 
 /* We cannot provide a general printing function.  */
-#define _dl_procinfo(word) -1
+#define _dl_procinfo(type, word) -1
 
 /* There are no hardware capabilities defined.  */
 #define _dl_hwcap_string(idx) ""
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index cb17204259..e7b0516aaf 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -554,6 +554,10 @@ struct rtld_global_ro
   EXTERN struct link_map *_dl_sysinfo_map;
 #endif
 
+  /* Mask for more hardware capabilities that are available on some
+     platforms.  */
+  EXTERN uint64_t _dl_hwcap2;
+
 #ifdef SHARED
   /* We add a function table to _rtld_global which is then used to
      call the function instead of going through the PLT.  The result
diff --git a/sysdeps/i386/dl-procinfo.h b/sysdeps/i386/dl-procinfo.h
index 883fa7f0ab..233a3257e3 100644
--- a/sysdeps/i386/dl-procinfo.h
+++ b/sysdeps/i386/dl-procinfo.h
@@ -61,7 +61,7 @@ enum
 };
 
 /* We cannot provide a general printing function.  */
-#define _dl_procinfo(word) -1
+#define _dl_procinfo(type, word) -1
 
 static inline const char *
 __attribute__ ((unused))
diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h
index 1c978ba62d..9531a2acc7 100644
--- a/sysdeps/powerpc/dl-procinfo.h
+++ b/sysdeps/powerpc/dl-procinfo.h
@@ -159,8 +159,12 @@ _dl_string_platform (const char *str)
 #ifdef IS_IN_rtld
 static inline int
 __attribute__ ((unused))
-_dl_procinfo (int word)
+_dl_procinfo (unsigned int type, unsigned long int word)
 {
+  /* Fallback to unknown output mechanism.  */
+  if (type == AT_HWCAP2)
+    return -1;
+
   _dl_printf ("AT_HWCAP:       ");
 
   for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
diff --git a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h
index 717f6f9a50..45e27f1023 100644
--- a/sysdeps/s390/dl-procinfo.h
+++ b/sysdeps/s390/dl-procinfo.h
@@ -56,7 +56,7 @@ enum
 			  | HWCAP_S390_EIMM | HWCAP_S390_DFP)
 
 /* We cannot provide a general printing function.  */
-#define _dl_procinfo(word) -1
+#define _dl_procinfo(type, word) -1
 
 static inline const char *
 __attribute__ ((unused))
diff --git a/sysdeps/sparc/dl-procinfo.h b/sysdeps/sparc/dl-procinfo.h
index a18b099586..71b279acdd 100644
--- a/sysdeps/sparc/dl-procinfo.h
+++ b/sysdeps/sparc/dl-procinfo.h
@@ -27,10 +27,14 @@
 
 static inline int
 __attribute__ ((unused))
-_dl_procinfo (int word)
+_dl_procinfo (unsigned int type, unsigned long int word)
 {
   int i;
 
+  /* Fallback to unknown output mechanism.  */
+  if (type == AT_HWCAP2)
+    return -1;
+
   _dl_printf ("AT_HWCAP:   ");
 
   for (i = 0; i < _DL_HWCAP_COUNT; ++i)
diff --git a/sysdeps/unix/sysv/linux/i386/dl-procinfo.h b/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
index a82f8f5b8d..10f1c00b7b 100644
--- a/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
@@ -24,12 +24,16 @@
 #undef _dl_procinfo
 static inline int
 __attribute__ ((unused))
-_dl_procinfo (int word)
+_dl_procinfo (unsigned int type, unsigned long int word)
 {
   /* This table should match the information from arch/i386/kernel/setup.c
      in the kernel sources.  */
   int i;
 
+  /* Fallback to unknown output mechanism.  */
+  if (type == AT_HWCAP2)
+    return -1;
+
   _dl_printf ("AT_HWCAP:   ");
 
   for (i = 0; i < _DL_HWCAP_COUNT; ++i)
diff --git a/sysdeps/unix/sysv/linux/s390/dl-procinfo.h b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
index 5ca4b76ca7..331230443a 100644
--- a/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
@@ -24,12 +24,16 @@
 #undef _dl_procinfo
 static inline int
 __attribute__ ((unused))
-_dl_procinfo (int word)
+_dl_procinfo (unsigned int type, unsigned long int word)
 {
   /* This table should match the information from arch/s390/kernel/setup.c
      in the kernel sources.  */
   int i;
 
+  /* Fallback to unknown output mechanism.  */
+  if (type == AT_HWCAP2)
+    return -1;
+
   _dl_printf ("AT_HWCAP:   ");
 
   for (i = 0; i < _DL_HWCAP_COUNT; ++i)