From: Andi Kleen <andi@firstfloor.org>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH prototype] [5/8] Add ELF constants for pbitmaps
Date: Tue, 18 Mar 2008 02:09:39 +0100 (CET) [thread overview]
Message-ID: <20080318010939.566791B41E1@basil.firstfloor.org> (raw)
In-Reply-To: <20080318209.039112899@firstfloor.org>
I made up some numbers for the present bitmap phdrs and shdrs.
For serious use this would probably require an allocation somewhere.
Signed-off-by: Andi Kleen <andi@firstfloor.org>
---
include/linux/elf.h | 4 ++++
1 file changed, 4 insertions(+)
Index: linux/include/linux/elf.h
===================================================================
--- linux.orig/include/linux/elf.h
+++ linux/include/linux/elf.h
@@ -49,6 +49,7 @@ typedef __s64 Elf64_Sxword;
#define PT_GNU_EH_FRAME 0x6474e550
#define PT_GNU_STACK (PT_LOOS + 0x474e551)
+#define PT_PRESENT_BITMAP (PT_GNU_STACK + 1)
/* These constants define the different elf file types */
#define ET_NONE 0
@@ -230,6 +231,8 @@ typedef struct elf64_hdr {
#define PF_W 0x2
#define PF_X 0x1
+#define PF_PLEASE_LOAD_SHDRS 0x8 /* hack. checked on PT_GNU_STACK */
+
typedef struct elf32_phdr{
Elf32_Word p_type;
Elf32_Off p_offset;
@@ -270,6 +273,7 @@ typedef struct elf64_phdr {
#define SHT_HIPROC 0x7fffffff
#define SHT_LOUSER 0x80000000
#define SHT_HIUSER 0xffffffff
+#define SHT_PRESENT_BITMAP (SHT_LOPROC - 1000)
/* sh_flags */
#define SHF_WRITE 0x1
--
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next prev parent reply other threads:[~2008-03-18 1:09 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-18 1:09 [PATCH prototype] [0/8] Predictive bitmaps for ELF executables Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [1/8] Give ELF shdr types a name Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [2/8] Add support to override mmap exec write protection with O_FORCEWRITE Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [3/8] Make readahead max pinned value a sysctl Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [4/8] Add readahead function to read-ahead based on a bitmap Andi Kleen
2008-03-18 1:09 ` Andi Kleen [this message]
2008-03-18 1:09 ` [PATCH prototype] [6/8] Core predictive bitmap engine Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [7/8] Add the sysctls to control pbitmaps Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [8/8] Add mmap_full_slurp support Andi Kleen
2008-03-18 7:36 ` [PATCH prototype] [0/8] Predictive bitmaps for ELF executables Andrew Morton
2008-03-18 14:18 ` Andi Kleen
2008-03-18 16:57 ` Andrew Morton
2008-03-18 17:20 ` Andi Kleen
2008-03-18 17:44 ` Andrew Morton
2008-03-19 8:32 ` Andi Kleen
2008-03-19 9:04 ` Andrew Morton
2008-03-19 22:45 ` Ulrich Drepper
2008-03-19 23:12 ` Andrew Morton
2008-03-20 0:09 ` David Miller, Andrew Morton
2008-03-20 9:00 ` Andi Kleen
2008-03-21 17:15 ` Ulrich Drepper
2008-03-21 17:26 ` Andi Kleen
2008-03-22 4:36 ` Ulrich Drepper
2008-03-22 7:17 ` Andi Kleen
2008-03-22 7:24 ` Nicholas Miell
2008-03-22 9:10 ` Andi Kleen
2008-03-22 10:16 ` Nicholas Miell
2008-03-22 14:29 ` Andi Kleen
2008-03-23 13:25 ` Pavel Machek
2008-03-23 17:08 ` Andi Kleen
2008-03-24 16:24 ` Pavel Machek
2008-03-24 4:20 ` Ulrich Drepper
2008-03-24 5:16 ` Nicholas Miell
2008-03-24 5:26 ` Andi Kleen
2008-03-24 19:42 ` Ulrich Drepper
2008-03-24 21:47 ` Nicholas Miell
2008-03-25 7:54 ` Andi Kleen
2008-03-26 18:15 ` Ulrich Drepper
2008-03-26 18:54 ` Andi Kleen
2008-03-22 4:38 ` Ulrich Drepper
2008-03-20 0:15 ` Diego Calleja
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