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-rw-r--r--ChangeLog25
-rw-r--r--elf/dl-support.c4
-rw-r--r--elf/dl-sysdep.c10
-rw-r--r--misc/getauxval.c2
-rw-r--r--ports/ChangeLog.alpha5
-rw-r--r--ports/ChangeLog.arm7
-rw-r--r--ports/ChangeLog.mips5
-rw-r--r--ports/sysdeps/alpha/dl-procinfo.h2
-rw-r--r--ports/sysdeps/mips/dl-procinfo.h2
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/dl-procinfo.h6
-rw-r--r--sysdeps/generic/dl-procinfo.h2
-rw-r--r--sysdeps/generic/ldsodefs.h4
-rw-r--r--sysdeps/i386/dl-procinfo.h2
-rw-r--r--sysdeps/powerpc/dl-procinfo.h6
-rw-r--r--sysdeps/s390/dl-procinfo.h2
-rw-r--r--sysdeps/sparc/dl-procinfo.h6
-rw-r--r--sysdeps/unix/sysv/linux/i386/dl-procinfo.h6
-rw-r--r--sysdeps/unix/sysv/linux/s390/dl-procinfo.h6
18 files changed, 89 insertions, 13 deletions
diff --git a/ChangeLog b/ChangeLog
index f3da517..1ee4457 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,28 @@
+2013-06-28 Ryan S. Arnold <rsa@linux.vnet.ibm.com>
+
+ * elf/dl-support.c (_dl_hwcap2): Add a new hwcap field for more
+ hardware capabilities in support of AT_HWCAP2.
+ (_dl_aux_init): Read AT_HWCAP2 into GLRO(dl_hwcap2).
+ * elf/dl-sysdep.c (_dl_sysdep_start): Read AT_HWCAP2 into
+ GLRO(dl_hwcap2).
+ (_dl_show_auxv): Add support for calling _dl_procinfo to display
+ AT_HWCAP2. If a platform doesn't chose to handle displaying AT_HWCAP2
+ explicitly the unknown a_type display mechanism is used.
+ * misc/getauxval.c (__getauxval): Return GLRO(dl_hwcap2) on AT_HWCAP2.
+ * sysdeps/generic/ldsodefs.h (rtld_global_ro): Add _dl_hwcap2 as a new
+ struct member.
+ * sysdeps/generic/dl-procinfo.h (_dl_procinfo): Add TYPE parameter
+ to macro prototype for AT_HWCAP2 support.
+ * sysdeps/i386/dl-procinfo.h: Likewise.
+ * sysdeps/s390/dl-procinfo.h: Likewise.
+ * sysdeps/powerpc/dl-procinfo.h (_dl_procinfo): Add TYPE parameter to
+ macro prototype for AT_HWCAP2 support. Make WORD unsigned long int
+ rather than signed int. Stub in handler for TYPE == AT_HWCAP2 to
+ return -1 for unknown a_type display fallback.
+ * sysdeps/sparc/dl-procinfo.h: Likewise.
+ * sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/dl-procinfo.h: Likewise.
+
2013-06-28 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Shift by page_shift
diff --git a/elf/dl-support.c b/elf/dl-support.c
index 76752f3..5a082fe 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -165,6 +165,7 @@ ElfW(auxv_t) *_dl_auxv;
const ElfW(Phdr) *_dl_phdr;
size_t _dl_phnum;
uint64_t _dl_hwcap __attribute__ ((nocommon));
+uint64_t _dl_hwcap2 __attribute__ ((nocommon));
/* This is not initialized to HWCAP_IMPORTANT, matching the definition
of _dl_important_hwcaps, below, where no hwcap strings are ever
@@ -249,6 +250,9 @@ _dl_aux_init (ElfW(auxv_t) *av)
case AT_HWCAP:
GLRO(dl_hwcap) = (unsigned long int) av->a_un.a_val;
break;
+ case AT_HWCAP2:
+ GLRO(dl_hwcap2) = (unsigned long int) av->a_un.a_val;
+ break;
#ifdef NEED_DL_SYSINFO
case AT_SYSINFO:
GL(dl_sysinfo) = av->a_un.a_val;
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index 52de23f..08c74ef 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -156,6 +156,9 @@ _dl_sysdep_start (void **start_argptr,
case AT_HWCAP:
GLRO(dl_hwcap) = (unsigned long int) av->a_un.a_val;
break;
+ case AT_HWCAP2:
+ GLRO(dl_hwcap2) = (unsigned long int) av->a_un.a_val;
+ break;
case AT_CLKTCK:
GLRO(dl_clktck) = av->a_un.a_val;
break;
@@ -303,6 +306,7 @@ _dl_show_auxv (void)
[AT_SYSINFO - 2] = { "SYSINFO: 0x", hex },
[AT_SYSINFO_EHDR - 2] = { "SYSINFO_EHDR: 0x", hex },
[AT_RANDOM - 2] = { "RANDOM: 0x", hex },
+ [AT_HWCAP2 - 2] = { "HWCAP2: 0x", hex },
};
unsigned int idx = (unsigned int) (av->a_type - 2);
@@ -314,10 +318,10 @@ _dl_show_auxv (void)
assert (AT_NULL == 0);
assert (AT_IGNORE == 1);
- if (av->a_type == AT_HWCAP)
+ if (av->a_type == AT_HWCAP || av->a_type == AT_HWCAP2)
{
- /* This is handled special. */
- if (_dl_procinfo (av->a_un.a_val) == 0)
+ /* These are handled in a special way per platform. */
+ if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)
continue;
}
diff --git a/misc/getauxval.c b/misc/getauxval.c
index 4321e37..e0317fd 100644
--- a/misc/getauxval.c
+++ b/misc/getauxval.c
@@ -26,6 +26,8 @@ __getauxval (unsigned long int type)
if (type == AT_HWCAP)
return GLRO(dl_hwcap);
+ else if (type == AT_HWCAP2)
+ return GLRO(dl_hwcap2);
for (p = GLRO(dl_auxv); p->a_type != AT_NULL; p++)
if (p->a_type == type)
diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index 59e78d1..1ccae37 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,3 +1,8 @@
+2013-06-28 Ryan S. Arnold <rsa@linux.vnet.ibm.com>
+
+ * sysdeps/alpha/dl-procinfo.h (_dl_procinfo): Add TYPE parameter
+ to macro prototype for AT_HWCAP2 support.
+
2013-06-24 Richard Henderson <rth@redhat.com>
[BZ #15666]
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm
index 2c07021..6cc665c 100644
--- a/ports/ChangeLog.arm
+++ b/ports/ChangeLog.arm
@@ -1,3 +1,10 @@
+2013-06-28 Ryan S. Arnold <rsa@linux.vnet.ibm.com>
+
+ * sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_dl_procinfo): Add
+ TYPE parameter to macro prototype for AT_HWCAP2 support. Make WORD
+ unsigned long int rather than signed int. Stub in handler for TYPE ==
+ AT_HWCAP2 to return -1 for unknown a_type display fallback.
+
2013-06-18 Roland McGrath <roland@hack.frob.com>
* sysdeps/arm/arm-mcount.S: Comment typo fix.
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index 00542f5..1f69593 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,8 @@
+2013-06-28 Ryan S. Arnold <rsa@linux.vnet.ibm.com>
+
+ * sysdeps/mips/dl-procinfo.h (_dl_procinfo): Add TYPE parameter
+ to macro prototype for AT_HWCAP2 support.
+
2013-06-27 Maciej W. Rozycki <macro@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/dl-static.c: Do not include
diff --git a/ports/sysdeps/alpha/dl-procinfo.h b/ports/sysdeps/alpha/dl-procinfo.h
index 523d966..0344dbc 100644
--- a/ports/sysdeps/alpha/dl-procinfo.h
+++ b/ports/sysdeps/alpha/dl-procinfo.h
@@ -51,7 +51,7 @@ _dl_string_platform (const char *str)
};
/* 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/ports/sysdeps/mips/dl-procinfo.h b/ports/sysdeps/mips/dl-procinfo.h
index 5cc9a44..e96550c 100644
--- a/ports/sysdeps/mips/dl-procinfo.h
+++ b/ports/sysdeps/mips/dl-procinfo.h
@@ -51,7 +51,7 @@ _dl_string_platform (const char *str)
};
/* 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/ports/sysdeps/unix/sysv/linux/arm/dl-procinfo.h b/ports/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
index 161e86c..251653a 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
+++ b/ports/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
@@ -31,10 +31,14 @@
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/generic/dl-procinfo.h b/sysdeps/generic/dl-procinfo.h
index 90c87d9..a184a59 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 cb17204..e7b0516 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 883fa7f..233a325 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 1c978ba..9531a2a 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 717f6f9..45e27f1 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 a18b099..71b279a 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 a82f8f5..10f1c00 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 5ca4b76..3312304 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)
generated by cgit v1.1 at 2024-07-28 13:15:54 +0000