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On Thu, Sep 14, 2006 at 10:12:48AM -0700, Ulrich Drepper wrote:
> On 9/14/06, Jakub Jelinek <jakub@redhat.com> wrote:
> >+#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
> >+ | PPC_FEATURE_BOOKE)
>
> booke is not important for reasonable machines. The embedded garbage
> can define their own macros in a file in ports.
>
> I'm going to apply the change without the bit in about 14 hours (when
> I get back online) unless I read a rejection. Mind you, rejection of
> the move to AT_PLATFORM, not the booke stuff.
Here is an updated patch that doesn't list BOOKE in HWCAP_IMPORTANT,
on the other side adds another 3 bits to recognized hwcaps (for
LD_SHOW_AUXV=1) and adds some stuff from Steven's
http://sources.redhat.com/ml/libc-alpha/2006-01/msg00096.html
patch.
2006-09-14 Jakub Jelinek <jakub@redhat.com>
Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 4 new cap
names to the beginning. Rename "cell" to "cellbe".
(_dl_powerpc_platforms): New.
* sysdeps/powerpc/dl-procinfo.h (_DL_HWCAP_FIRST): Decrease.
(HWCAP_IMPORTANT): Remove power{4,5,5+} and cell.
(_DL_PLATFORMS_COUNT, _DL_FIRST_PLATFORM): Define.
(_DL_HWCAP_PLATFORM): Define to new mask.
(_dl_platform_string, _dl_string_platform): New functions.
* sysdeps/powerpc/sysdep.h (PPC_FEATURE_BOOKE, PPC_FEATURE_SMT,
PPC_FEATURE_ICACHE_SNOOP, PPC_FEATURE_ARCH_2_05): Define.
--- libc/sysdeps/powerpc/dl-procinfo.c.jj 2006-09-14 13:55:06.000000000 +0200
+++ libc/sysdeps/powerpc/dl-procinfo.c 2006-09-14 19:57:49.000000000 +0200
@@ -1,5 +1,5 @@
/* Data for processor capability information. PowerPC version.
- Copyright (C) 2005 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -46,11 +46,12 @@
#if !defined PROCINFO_DECL && defined SHARED
._dl_powerpc_cap_flags
#else
-PROCINFO_CLASS const char _dl_powerpc_cap_flags[16][10]
+PROCINFO_CLASS const char _dl_powerpc_cap_flags[20][10]
#endif
#ifndef PROCINFO_DECL
= {
- "cell", "power5+", "power5", "power4",
+ "arch_2_05", "ic_snoop", "smt", "booke",
+ "cellbe", "power5+", "power5", "power4",
"notb", "efpdouble", "efpsingle", "spe",
"ucache", "4xxmac", "mmu", "fpu",
"altivec", "ppc601", "ppc64", "ppc32",
@@ -62,5 +63,21 @@ PROCINFO_CLASS const char _dl_powerpc_ca
,
#endif
+#if !defined PROCINFO_DECL && defined SHARED
+ ._dl_powerpc_platforms
+#else
+PROCINFO_CLASS const char _dl_powerpc_platforms[6][12]
+#endif
+#ifndef PROCINFO_DECL
+= {
+ "power4", "ppc970", "power5", "power5+", "power6", "ppc-cell-be"
+ }
+#endif
+#if !defined SHARED || defined PROCINFO_DECL
+;
+#else
+,
+#endif
+
#undef PROCINFO_DECL
#undef PROCINFO_CLASS
--- libc/sysdeps/powerpc/dl-procinfo.h.jj 2006-09-14 13:55:06.000000000 +0200
+++ libc/sysdeps/powerpc/dl-procinfo.h 2006-09-14 19:59:08.000000000 +0200
@@ -1,5 +1,5 @@
/* Processor capability information handling macros. PowerPC version.
- Copyright (C) 2005 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -23,27 +23,33 @@
#include <ldsodefs.h>
#include <sysdep.h> /* This defines the PPC_FEATURE_* macros. */
-/* There are 16 bits used, but they are bits 16..31. */
-#define _DL_HWCAP_FIRST 16
+/* There are 20 bits used, but they are bits 12..31. */
+#define _DL_HWCAP_FIRST 12
#define _DL_HWCAP_COUNT 32
/* These bits influence library search. */
-#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
- | PPC_FEATURE_POWER4 \
- | PPC_FEATURE_POWER5 \
- | PPC_FEATURE_POWER5_PLUS \
- | PPC_FEATURE_CELL)
-
-/* We don't use AT_PLATFORM. */
-#define _DL_HWCAP_PLATFORM 0
-#define _dl_string_platform(str) (-1)
+#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC)
+
+#define _DL_PLATFORMS_COUNT 6
+
+#define _DL_FIRST_PLATFORM 32
+/* Mask to filter out platforms. */
+#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
+ << _DL_FIRST_PLATFORM)
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST];
-};
+}
+
+static inline const char *
+__attribute__ ((unused))
+_dl_platform_string (int idx)
+{
+ return GLRO(dl_powerpc_platforms)[idx - _DL_FIRST_PLATFORM];
+}
static inline int
__attribute__ ((unused))
@@ -53,7 +59,48 @@ _dl_string_hwcap (const char *str)
if (strcmp (str, _dl_hwcap_string (i)) == 0)
return i;
return -1;
-};
+}
+
+static inline int
+__attribute__ ((unused, always_inline))
+_dl_string_platform (const char *str)
+{
+ if (str == NULL)
+ return -1;
+
+ if (strncmp (str, GLRO(dl_powerpc_platforms)[0], 5) == 0)
+ {
+ int ret;
+ str += 5;
+ switch (*str)
+ {
+ case '4':
+ ret = _DL_FIRST_PLATFORM + 0;
+ break;
+ case '5':
+ ret = _DL_FIRST_PLATFORM + 2;
+ if (str[1] == '+')
+ ++ret, ++str;
+ break;
+ case '6':
+ ret = _DL_FIRST_PLATFORM + 4;
+ break;
+ default:
+ return -1;
+ }
+ if (str[1] == '\0')
+ return ret;
+ }
+ else if (strncmp (str, GLRO(dl_powerpc_platforms)[1], 3) == 0)
+ {
+ if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[1] + 3) == 0)
+ return _DL_FIRST_PLATFORM + 1;
+ else if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[5] + 3) == 0)
+ return _DL_FIRST_PLATFORM + 5;
+ }
+
+ return -1;
+}
#ifdef IS_IN_rtld
static inline int
--- libc/sysdeps/powerpc/sysdep.h.jj 2005-11-21 12:07:50.000000000 +0100
+++ libc/sysdeps/powerpc/sysdep.h 2006-09-14 19:58:48.000000000 +0200
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2002, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -29,14 +29,18 @@
#define PPC_FEATURE_HAS_MMU 0x04000000 /* Memory Management Unit. */
#define PPC_FEATURE_HAS_4xxMAC 0x02000000 /* 4xx Multiply Accumulator. */
#define PPC_FEATURE_UNIFIED_CACHE 0x01000000 /* Unified I/D cache. */
-#define PPC_FEATURE_HAS_SPE 0x00800000
-#define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000
-#define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000
+#define PPC_FEATURE_HAS_SPE 0x00800000 /* Signal Processing ext. */
+#define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 /* SPE Float. */
+#define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 /* SPE Double. */
#define PPC_FEATURE_NO_TB 0x00100000 /* 601/403gx have no timebase */
-#define PPC_FEATURE_POWER4 0x00080000 /* POWER4 microarch level */
-#define PPC_FEATURE_POWER5 0x00040000 /* POWER5 microarch level */
-#define PPC_FEATURE_POWER5_PLUS 0x00020000 /* POWER5+ microarch level */
-#define PPC_FEATURE_CELL 0x00010000 /* CELL PU microarch level */
+#define PPC_FEATURE_POWER4 0x00080000 /* POWER4 ISA 2.00 */
+#define PPC_FEATURE_POWER5 0x00040000 /* POWER5 ISA 2.01 */
+#define PPC_FEATURE_POWER5_PLUS 0x00020000 /* POWER5+ ISA 2.02 */
+#define PPC_FEATURE_CELL_BE 0x00010000 /* CELL Broadband Engine */
+#define PPC_FEATURE_BOOKE 0x00008000
+#define PPC_FEATURE_SMT 0x00004000
+#define PPC_FEATURE_ICACHE_SNOOP 0x00002000
+#define PPC_FEATURE_ARCH_2_05 0x00001000 /* ISA 2.05 */
#define PPC_FEATURE_970 (PPC_FEATURE_POWER4 + PPC_FEATURE_HAS_ALTIVEC)
#ifdef __ASSEMBLER__
Jakub
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