[binutils-gdb] Add missing AT tags to the ELF common header.

Nick Clifton nickc@sourceware.org
Tue Mar 3 13:14:00 GMT 2020


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b5ebe8ddf9c9cd1ce272cc9c7de528d41209be9f

commit b5ebe8ddf9c9cd1ce272cc9c7de528d41209be9f
Author: Luis Machado <luis.machado@linaro.org>
Date:   Tue Mar 3 13:13:53 2020 +0000

    Add missing AT tags to the ELF common header.
    
    	* elf/common.h (AT_L1I_CACHESIZE, AT_L1I_CACHEGEOMETRY)
    	(AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY, AT_L2_CACHESIZE)
    	(AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE, AT_L3_CACHEGEOMETRY)
    	(AT_MINSIGSTKSZ): New defines, imported from glibc.

Diff:
---
 include/ChangeLog    |  7 +++++++
 include/elf/common.h | 15 +++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/include/ChangeLog b/include/ChangeLog
index a821ac6..8659ef4 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,10 @@
+2020-03-03  Luis Machado  <luis.machado@linaro.org>
+
+	* elf/common.h (AT_L1I_CACHESIZE, AT_L1I_CACHEGEOMETRY)
+	(AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY, AT_L2_CACHESIZE)
+	(AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE, AT_L3_CACHEGEOMETRY)
+	(AT_MINSIGSTKSZ): New defines, imported from glibc.
+
 2020-02-25  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	Import from gcc mainline:
diff --git a/include/elf/common.h b/include/elf/common.h
index 53b7244..18c898c 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -1222,6 +1222,21 @@
 #define AT_L2_CACHESHAPE  36
 #define AT_L3_CACHESHAPE  37
 
+/* Shapes of the caches, with more room to describe them.
+   *GEOMETRY are comprised of cache line size in bytes in the bottom 16 bits
+   and the cache associativity in the next 16 bits.  */
+#define AT_L1I_CACHESIZE	40
+#define AT_L1I_CACHEGEOMETRY	41
+#define AT_L1D_CACHESIZE	42
+#define AT_L1D_CACHEGEOMETRY	43
+#define AT_L2_CACHESIZE		44
+#define AT_L2_CACHEGEOMETRY	45
+#define AT_L3_CACHESIZE		46
+#define AT_L3_CACHEGEOMETRY	47
+
+#define AT_MINSIGSTKSZ		51 /* Stack needed for signal delivery
+				      (AArch64).  */
+
 #define AT_FREEBSD_EXECPATH     15      /* Path to the executable. */
 #define AT_FREEBSD_CANARY       16      /* Canary for SSP. */
 #define AT_FREEBSD_CANARYLEN    17      /* Length of the canary. */



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