Print cache size and geometry auxv types on LD_SHOW_AUXV=1

Add support for AT_L1I_CACHESIZE, AT_L1I_CACHEGEOMETRY,
AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY, AT_L2_CACHESIZE,
AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE and AT_L3_CACHEGEOMETRY when
LD_SHOW_AUXV=1.

AT_L*_CACHESIZE is printed as decimal and represent the number of
bytes of the cache.

AT_L*_CACHEGEOMETRY is treated in order to specify the cache line size
and its associativity.

Example output from a POWER8:

AT_L1I_CACHESIZE:     32768
AT_L1I_CACHEGEOMETRY: 128B line size, 8-way set associative
AT_L1D_CACHESIZE:     65536
AT_L1D_CACHEGEOMETRY: 128B line size, 8-way set associative
AT_L2_CACHESIZE:      524288
AT_L2_CACHEGEOMETRY:  128B line size, 8-way set associative
AT_L3_CACHESIZE:      8388608
AT_L3_CACHEGEOMETRY:  128B line size, 8-way set associative

Some of the new types are longer than the previous ones, requiring to
increase the indentation in order to keep the values aligned.

	* elf/dl-sysdep.c (auxvars): Add AT_L1I_CACHESIZE,
	AT_L1I_CACHEGEOMETRY, AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY,
	AT_L2_CACHESIZE, AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE and
	AT_L3_CACHEGEOMETRY.  Fix indentation when printing the other
	fields.
	(_dl_show_auxv): Give a special treatment to
	AT_L1I_CACHEGEOMETRY, AT_L1D_CACHEGEOMETRY, AT_L2_CACHEGEOMETRY
	and AT_L3_CACHEGEOMETRY.
	* sysdeps/powerpc/dl-procinfo.h (cache_geometry): New function.
	(_dl_procinfo): Fix indentation when printing AT_HWCAP and
	AT_HWCAP2.  Add support for AT_L1I_CACHEGEOMETRY,
	AT_L1D_CACHEGEOMETRY, AT_L2_CACHEGEOMETRY and AT_L3_CACHEGEOMETRY.

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>

1 files changed, 39 insertions, 29 deletions

diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index 998c5d5..9398325 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -277,38 +277,46 @@ _dl_show_auxv (void)
     {
       static const struct
       {
-	const char label[17];
+	const char label[22];
 	enum { unknown = 0, dec, hex, str, ignore } form : 8;
       } auxvars[] =
 	{
-	  [AT_EXECFD - 2] =		{ "EXECFD:       ", dec },
-	  [AT_EXECFN - 2] =		{ "EXECFN:       ", str },
-	  [AT_PHDR - 2] =		{ "PHDR:         0x", hex },
-	  [AT_PHENT - 2] =		{ "PHENT:        ", dec },
-	  [AT_PHNUM - 2] =		{ "PHNUM:        ", dec },
-	  [AT_PAGESZ - 2] =		{ "PAGESZ:       ", dec },
-	  [AT_BASE - 2] =		{ "BASE:         0x", hex },
-	  [AT_FLAGS - 2] =		{ "FLAGS:        0x", hex },
-	  [AT_ENTRY - 2] =		{ "ENTRY:        0x", hex },
-	  [AT_NOTELF - 2] =		{ "NOTELF:       ", hex },
-	  [AT_UID - 2] =		{ "UID:          ", dec },
-	  [AT_EUID - 2] =		{ "EUID:         ", dec },
-	  [AT_GID - 2] =		{ "GID:          ", dec },
-	  [AT_EGID - 2] =		{ "EGID:         ", dec },
-	  [AT_PLATFORM - 2] =		{ "PLATFORM:     ", str },
-	  [AT_HWCAP - 2] =		{ "HWCAP:        ", hex },
-	  [AT_CLKTCK - 2] =		{ "CLKTCK:       ", dec },
-	  [AT_FPUCW - 2] =		{ "FPUCW:        ", hex },
-	  [AT_DCACHEBSIZE - 2] =	{ "DCACHEBSIZE:  0x", hex },
-	  [AT_ICACHEBSIZE - 2] =	{ "ICACHEBSIZE:  0x", hex },
-	  [AT_UCACHEBSIZE - 2] =	{ "UCACHEBSIZE:  0x", hex },
+	  [AT_EXECFD - 2] =		{ "EXECFD:            ", dec },
+	  [AT_EXECFN - 2] =		{ "EXECFN:            ", str },
+	  [AT_PHDR - 2] =		{ "PHDR:              0x", hex },
+	  [AT_PHENT - 2] =		{ "PHENT:             ", dec },
+	  [AT_PHNUM - 2] =		{ "PHNUM:             ", dec },
+	  [AT_PAGESZ - 2] =		{ "PAGESZ:            ", dec },
+	  [AT_BASE - 2] =		{ "BASE:              0x", hex },
+	  [AT_FLAGS - 2] =		{ "FLAGS:             0x", hex },
+	  [AT_ENTRY - 2] =		{ "ENTRY:             0x", hex },
+	  [AT_NOTELF - 2] =		{ "NOTELF:            ", hex },
+	  [AT_UID - 2] =		{ "UID:               ", dec },
+	  [AT_EUID - 2] =		{ "EUID:              ", dec },
+	  [AT_GID - 2] =		{ "GID:               ", dec },
+	  [AT_EGID - 2] =		{ "EGID:              ", dec },
+	  [AT_PLATFORM - 2] =		{ "PLATFORM:          ", str },
+	  [AT_HWCAP - 2] =		{ "HWCAP:             ", hex },
+	  [AT_CLKTCK - 2] =		{ "CLKTCK:            ", dec },
+	  [AT_FPUCW - 2] =		{ "FPUCW:             ", hex },
+	  [AT_DCACHEBSIZE - 2] =	{ "DCACHEBSIZE:       0x", hex },
+	  [AT_ICACHEBSIZE - 2] =	{ "ICACHEBSIZE:       0x", hex },
+	  [AT_UCACHEBSIZE - 2] =	{ "UCACHEBSIZE:       0x", hex },
 	  [AT_IGNOREPPC - 2] =		{ "IGNOREPPC", ignore },
-	  [AT_SECURE - 2] =		{ "SECURE:       ", dec },
-	  [AT_BASE_PLATFORM - 2] =	{ "BASE_PLATFORM:", str },
-	  [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 },
+	  [AT_SECURE - 2] =		{ "SECURE:            ", dec },
+	  [AT_BASE_PLATFORM - 2] =	{ "BASE_PLATFORM:     ", str },
+	  [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 },
+	  [AT_L1I_CACHESIZE - 2] =	{ "L1I_CACHESIZE:     ", dec },
+	  [AT_L1I_CACHEGEOMETRY - 2] =	{ "L1I_CACHEGEOMETRY: 0x", hex },
+	  [AT_L1D_CACHESIZE - 2] =	{ "L1D_CACHESIZE:     ", dec },
+	  [AT_L1D_CACHEGEOMETRY - 2] =	{ "L1D_CACHEGEOMETRY: 0x", hex },
+	  [AT_L2_CACHESIZE - 2] =	{ "L2_CACHESIZE:      ", dec },
+	  [AT_L2_CACHEGEOMETRY - 2] =	{ "L2_CACHEGEOMETRY:  0x", hex },
+	  [AT_L3_CACHESIZE - 2] =	{ "L3_CACHESIZE:      ", dec },
+	  [AT_L3_CACHEGEOMETRY - 2] =	{ "L3_CACHEGEOMETRY:  0x", hex },
 	};
       unsigned int idx = (unsigned int) (av->a_type - 2);
 
@@ -320,7 +328,9 @@ _dl_show_auxv (void)
       assert (AT_NULL == 0);
       assert (AT_IGNORE == 1);
 
-      if (av->a_type == AT_HWCAP || av->a_type == AT_HWCAP2)
+      if (av->a_type == AT_HWCAP || av->a_type == AT_HWCAP2
+	  || AT_L1I_CACHEGEOMETRY || AT_L1D_CACHEGEOMETRY
+	  || AT_L2_CACHEGEOMETRY || AT_L3_CACHEGEOMETRY)
 	{
 	  /* These are handled in a special way per platform.  */
 	  if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)