Update.

2001-04-10  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* elf/elf.h (AT_DCACHEBSIZE, AT_ICACHEBSIZE, AT_UCACHEBSIZE,
	AT_IGNOREPPC): New defines.
	* sysdeps/generic/dl-sysdep.c (_dl_show_auxv): Print them.
	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_STD_AUXV):
	Define for newer powerpc kernels.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Use the standard
	DL_FIND_ARG_COMPONENTS if __ASSUME_STD_AUXV is defined.

5 files changed, 75 insertions, 43 deletions

diff --git a/ChangeLog b/ChangeLog
index 8e41574f64..c696be056f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2001-04-10  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
+
+	* elf/elf.h (AT_DCACHEBSIZE, AT_ICACHEBSIZE, AT_UCACHEBSIZE,
+	AT_IGNOREPPC): New defines.
+	* sysdeps/generic/dl-sysdep.c (_dl_show_auxv): Print them.
+	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_STD_AUXV):
+	Define for newer powerpc kernels.
+	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Use the standard
+	DL_FIND_ARG_COMPONENTS if __ASSUME_STD_AUXV is defined.
+
 2000-4-10  kaz Kojima  <kkojima@rr.iij4u.or.jp>
 
 	* sysdeps/sh/stackinfo.h: New file.
diff --git a/elf/elf.h b/elf/elf.h
index f9688f9563..2bed6f07be 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -893,6 +893,15 @@ typedef struct
    performed by the kernel.  */
 #define AT_FPUCW	18		/* Used FPU control word.  */
 
+/* Cache block sizes.  */
+#define AT_DCACHEBSIZE	19		/* Data cache block size.  */
+#define AT_ICACHEBSIZE	20		/* Instruction cache block size.  */
+#define AT_UCACHEBSIZE	21		/* Unified cache block size.  */
+
+/* A special ignored value for PPC, used by the kernel to control the
+   interpretation of the AUXV. Must be > 16.  */
+#define AT_IGNOREPPC	22		/* Entry should be ignored */
+
 
 /* Note section contents.  Each entry in the note section begins with
    a header of a fixed form.  */
diff --git a/sysdeps/generic/dl-sysdep.c b/sysdeps/generic/dl-sysdep.c
index d1acaeedca..eb70d3de80 100644
--- a/sysdeps/generic/dl-sysdep.c
+++ b/sysdeps/generic/dl-sysdep.c
@@ -226,27 +226,30 @@ _dl_show_auxv (void)
     {
       static const struct
       {
-	const char label[16];
+	const char label[20];
 	enum { dec, hex, str } form;
       } auxvars[] =
 	{
-	  [AT_EXECFD - 2] =   { "AT_EXECFD:   ", dec },
-	  [AT_PHDR - 2] =     { "AT_PHDR:     0x", hex },
-	  [AT_PHENT - 2] =    { "AT_PHENT:    ", dec },
-	  [AT_PHNUM - 2] =    { "AT_PHNUM:    ", dec },
-	  [AT_PAGESZ - 2] =   { "AT_PAGESZ:   ", dec },
-	  [AT_BASE - 2] =     { "AT_BASE:     0x", hex },
-	  [AT_FLAGS - 2] =    { "AT_FLAGS:    0x", hex },
-	  [AT_ENTRY - 2] =    { "AT_ENTRY:    0x", hex },
-	  [AT_NOTELF - 2] =   { "AT_NOTELF:   ", hex },
-	  [AT_UID - 2] =      { "AT_UID:      ", dec },
-	  [AT_EUID - 2] =     { "AT_EUID:     ", dec },
-	  [AT_GID - 2] =      { "AT_GID:      ", dec },
-	  [AT_EGID - 2] =     { "AT_EGID:     ", dec },
-	  [AT_PLATFORM - 2] = { "AT_PLATFORM: ", str },
-	  [AT_HWCAP - 2] =    { "AT_HWCAP:    ", hex },
-	  [AT_CLKTCK - 2] =   { "AT_CLKTCK:   ", dec },
-	  [AT_FPUCW - 2] =    { "AT_FPUCW:    ", hex }
+	  [AT_EXECFD - 2] =		{ "AT_EXECFD:      ", dec },
+	  [AT_PHDR - 2] =		{ "AT_PHDR:        0x", hex },
+	  [AT_PHENT - 2] =		{ "AT_PHENT:       ", dec },
+	  [AT_PHNUM - 2] =		{ "AT_PHNUM:       ", dec },
+	  [AT_PAGESZ - 2] =		{ "AT_PAGESZ:      ", dec },
+	  [AT_BASE - 2] =		{ "AT_BASE:        0x", hex },
+	  [AT_FLAGS - 2] =		{ "AT_FLAGS:       0x", hex },
+	  [AT_ENTRY - 2] =		{ "AT_ENTRY:       0x", hex },
+	  [AT_NOTELF - 2] =		{ "AT_NOTELF:      ", hex },
+	  [AT_UID - 2] =		{ "AT_UID:         ", dec },
+	  [AT_EUID - 2] =		{ "AT_EUID:        ", dec },
+	  [AT_GID - 2] =		{ "AT_GID:         ", dec },
+	  [AT_EGID - 2] =		{ "AT_EGID:        ", dec },
+	  [AT_PLATFORM - 2] =		{ "AT_PLATFORM:    ", str },
+	  [AT_HWCAP - 2] =		{ "AT_HWCAP:       ", hex },
+	  [AT_CLKTCK - 2] =		{ "AT_CLKTCK:      ", dec },
+	  [AT_FPUCW - 2] =		{ "AT_FPUCW:       ", hex },
+	  [AT_DCACHEBSIZE - 2] =	{ "AT_DCACHEBSIZE: 0x", hex },
+	  [AT_ICACHEBSIZE - 2] =	{ "AT_ICACHEBSIZE: 0x", hex },
+	  [AT_UCACHEBSIZE - 2] =	{ "AT_UCACHEBSIZE: 0x", hex }
 	};
       unsigned int idx = (unsigned int) (av->a_type - 2);
 
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index bbbae67839..a2b4278169 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -163,3 +163,8 @@
 #if __LINUX_KERNEL_VERSION >= 132097
 # define __ASSUME_AT_PAGESIZE	1
 #endif
+
+/* Starting with 2.4.? kernels PPC passes the AUXV in the standard way.  */
+#if __LINUX_KERNEL_VERSION >= (132096+99) && defined __powerpc__
+# define __ASSUME_STD_AUXV	1
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
index 4419953d06..ca2d6341b5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
+++ b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
@@ -1,5 +1,5 @@
 /* Operating system support for run-time dynamic linker.  Linux/PPC version.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2001 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
@@ -18,33 +18,38 @@
    Boston, MA 02111-1307, USA.  */
 
 
+#include "config.h"
+#include "kernel-features.h"
+
+#ifndef __ASSUME_STD_AUXV
+
 /* The PowerPC's auxiliary argument block gets aligned to a 16-byte
    boundary.  This is history and impossible to change compatibly.  */
 
-#define DL_FIND_ARG_COMPONENTS(cookie, argc, argv, envp, auxp)	\
-  do {								\
-    char **_tmp;						\
-    size_t _test;						\
-    (argc) = *(long *) cookie;					\
-    (argv) = (char **) cookie + 1;				\
-    (envp) = (argv) + (argc) + 1;				\
-    for (_tmp = (envp); *_tmp; ++_tmp)				\
-      continue;							\
-    /* The following '++' is important!  */			\
-    ++_tmp;							\
-								\
-    _test = (size_t)_tmp;					\
-    _test = (_test + 0xf) & ~0xf;				\
-    /* Under some circumstances, MkLinux (up to at least DR3a5)	\
-       omits the padding.  To work around this, we make a	\
-       basic sanity check of the argument vector.  Of		\
-       course, this means that in future, the argument		\
-       vector will have to be laid out to allow for this	\
-       test :-(.  */						\
-     if (((ElfW(auxv_t) *)_test)->a_type <= 0x10)		\
-       _tmp = (char **)_test;					\
-    (auxp) = (ElfW(auxv_t) *) _tmp;				\
+#define DL_FIND_ARG_COMPONENTS(cookie, argc, argv, envp, auxp) \
+  do {									      \
+    char **_tmp;							      \
+    size_t _test;							      \
+    (argc) = *(long int *) cookie;					      \
+    (argv) = (char **) cookie + 1;					      \
+    (envp) = (argv) + (argc) + 1;					      \
+    for (_tmp = (envp); *_tmp; ++_tmp)					      \
+      continue;								      \
+    /* The following '++' is important!  */				      \
+    ++_tmp;								      \
+									      \
+    _test = (size_t)_tmp;						      \
+    _test = (_test + 0xf) & ~0xf;					      \
+    /* Under some circumstances, MkLinux (up to at least DR3a5)		      \
+       omits the padding.  To work around this, we make a		      \
+       basic sanity check of the argument vector.  Of			      \
+       course, this means that in future, the argument			      \
+       vector will have to be laid out to allow for this		      \
+       test :-(.  */							      \
+     if (((ElfW(auxv_t) *)_test)->a_type <= 0x10)			      \
+       _tmp = (char **)_test;						      \
+    (auxp) = (ElfW(auxv_t) *) _tmp;					      \
   } while (0)
-
+#endif
 
 #include <sysdeps/unix/sysv/linux/dl-sysdep.c>