This is a note to let you know that I have just added a patch titled
MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same time
to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue
This patch is scheduled to be released in version 3.13.11.7.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Kamal
------
>From 4938bf47c9496694d90de1acb71168bac78e71f5 Mon Sep 17 00:00:00 2001
From: Alex Smith <alex@xxxxxxxxxxxxxxxx>
Date: Wed, 23 Jul 2014 14:40:08 +0100
Subject: MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the
same time
commit bcec7c8da6b092b1ff3327fd83c2193adb12f684 upstream.
Get rid of the WANT_COMPAT_REG_H test and instead define both the 32-
and 64-bit register offset definitions at the same time with
MIPS{32,64}_ prefixes, then define the existing EF_* names to the
correct definitions for the kernel's bitness.
This patch is a prerequisite of the following bug fix patch.
Signed-off-by: Alex Smith <alex@xxxxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/7451/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
arch/mips/include/asm/reg.h | 260 +++++++++++++++++++++++++--------------
arch/mips/kernel/binfmt_elfo32.c | 32 ++---
2 files changed, 182 insertions(+), 110 deletions(-)
diff --git a/arch/mips/include/asm/reg.h b/arch/mips/include/asm/reg.h
index 910e71a..b8343cc 100644
--- a/arch/mips/include/asm/reg.h
+++ b/arch/mips/include/asm/reg.h
@@ -12,116 +12,194 @@
#ifndef __ASM_MIPS_REG_H
#define __ASM_MIPS_REG_H
-
-#if defined(CONFIG_32BIT) || defined(WANT_COMPAT_REG_H)
-
-#define EF_R0 6
-#define EF_R1 7
-#define EF_R2 8
-#define EF_R3 9
-#define EF_R4 10
-#define EF_R5 11
-#define EF_R6 12
-#define EF_R7 13
-#define EF_R8 14
-#define EF_R9 15
-#define EF_R10 16
-#define EF_R11 17
-#define EF_R12 18
-#define EF_R13 19
-#define EF_R14 20
-#define EF_R15 21
-#define EF_R16 22
-#define EF_R17 23
-#define EF_R18 24
-#define EF_R19 25
-#define EF_R20 26
-#define EF_R21 27
-#define EF_R22 28
-#define EF_R23 29
-#define EF_R24 30
-#define EF_R25 31
+#define MIPS32_EF_R0 6
+#define MIPS32_EF_R1 7
+#define MIPS32_EF_R2 8
+#define MIPS32_EF_R3 9
+#define MIPS32_EF_R4 10
+#define MIPS32_EF_R5 11
+#define MIPS32_EF_R6 12
+#define MIPS32_EF_R7 13
+#define MIPS32_EF_R8 14
+#define MIPS32_EF_R9 15
+#define MIPS32_EF_R10 16
+#define MIPS32_EF_R11 17
+#define MIPS32_EF_R12 18
+#define MIPS32_EF_R13 19
+#define MIPS32_EF_R14 20
+#define MIPS32_EF_R15 21
+#define MIPS32_EF_R16 22
+#define MIPS32_EF_R17 23
+#define MIPS32_EF_R18 24
+#define MIPS32_EF_R19 25
+#define MIPS32_EF_R20 26
+#define MIPS32_EF_R21 27
+#define MIPS32_EF_R22 28
+#define MIPS32_EF_R23 29
+#define MIPS32_EF_R24 30
+#define MIPS32_EF_R25 31
/*
* k0/k1 unsaved
*/
-#define EF_R26 32
-#define EF_R27 33
+#define MIPS32_EF_R26 32
+#define MIPS32_EF_R27 33
-#define EF_R28 34
-#define EF_R29 35
-#define EF_R30 36
-#define EF_R31 37
+#define MIPS32_EF_R28 34
+#define MIPS32_EF_R29 35
+#define MIPS32_EF_R30 36
+#define MIPS32_EF_R31 37
/*
* Saved special registers
*/
-#define EF_LO 38
-#define EF_HI 39
-
-#define EF_CP0_EPC 40
-#define EF_CP0_BADVADDR 41
-#define EF_CP0_STATUS 42
-#define EF_CP0_CAUSE 43
-#define EF_UNUSED0 44
-
-#define EF_SIZE 180
-
-#endif
-
-#if defined(CONFIG_64BIT) && !defined(WANT_COMPAT_REG_H)
-
-#define EF_R0 0
-#define EF_R1 1
-#define EF_R2 2
-#define EF_R3 3
-#define EF_R4 4
-#define EF_R5 5
-#define EF_R6 6
-#define EF_R7 7
-#define EF_R8 8
-#define EF_R9 9
-#define EF_R10 10
-#define EF_R11 11
-#define EF_R12 12
-#define EF_R13 13
-#define EF_R14 14
-#define EF_R15 15
-#define EF_R16 16
-#define EF_R17 17
-#define EF_R18 18
-#define EF_R19 19
-#define EF_R20 20
-#define EF_R21 21
-#define EF_R22 22
-#define EF_R23 23
-#define EF_R24 24
-#define EF_R25 25
+#define MIPS32_EF_LO 38
+#define MIPS32_EF_HI 39
+
+#define MIPS32_EF_CP0_EPC 40
+#define MIPS32_EF_CP0_BADVADDR 41
+#define MIPS32_EF_CP0_STATUS 42
+#define MIPS32_EF_CP0_CAUSE 43
+#define MIPS32_EF_UNUSED0 44
+
+#define MIPS32_EF_SIZE 180
+
+#define MIPS64_EF_R0 0
+#define MIPS64_EF_R1 1
+#define MIPS64_EF_R2 2
+#define MIPS64_EF_R3 3
+#define MIPS64_EF_R4 4
+#define MIPS64_EF_R5 5
+#define MIPS64_EF_R6 6
+#define MIPS64_EF_R7 7
+#define MIPS64_EF_R8 8
+#define MIPS64_EF_R9 9
+#define MIPS64_EF_R10 10
+#define MIPS64_EF_R11 11
+#define MIPS64_EF_R12 12
+#define MIPS64_EF_R13 13
+#define MIPS64_EF_R14 14
+#define MIPS64_EF_R15 15
+#define MIPS64_EF_R16 16
+#define MIPS64_EF_R17 17
+#define MIPS64_EF_R18 18
+#define MIPS64_EF_R19 19
+#define MIPS64_EF_R20 20
+#define MIPS64_EF_R21 21
+#define MIPS64_EF_R22 22
+#define MIPS64_EF_R23 23
+#define MIPS64_EF_R24 24
+#define MIPS64_EF_R25 25
/*
* k0/k1 unsaved
*/
-#define EF_R26 26
-#define EF_R27 27
+#define MIPS64_EF_R26 26
+#define MIPS64_EF_R27 27
-#define EF_R28 28
-#define EF_R29 29
-#define EF_R30 30
-#define EF_R31 31
+#define MIPS64_EF_R28 28
+#define MIPS64_EF_R29 29
+#define MIPS64_EF_R30 30
+#define MIPS64_EF_R31 31
/*
* Saved special registers
*/
-#define EF_LO 32
-#define EF_HI 33
-
-#define EF_CP0_EPC 34
-#define EF_CP0_BADVADDR 35
-#define EF_CP0_STATUS 36
-#define EF_CP0_CAUSE 37
-
-#define EF_SIZE 304 /* size in bytes */
+#define MIPS64_EF_LO 32
+#define MIPS64_EF_HI 33
+
+#define MIPS64_EF_CP0_EPC 34
+#define MIPS64_EF_CP0_BADVADDR 35
+#define MIPS64_EF_CP0_STATUS 36
+#define MIPS64_EF_CP0_CAUSE 37
+
+#define MIPS64_EF_SIZE 304 /* size in bytes */
+
+#if defined(CONFIG_32BIT)
+
+#define EF_R0 MIPS32_EF_R0
+#define EF_R1 MIPS32_EF_R1
+#define EF_R2 MIPS32_EF_R2
+#define EF_R3 MIPS32_EF_R3
+#define EF_R4 MIPS32_EF_R4
+#define EF_R5 MIPS32_EF_R5
+#define EF_R6 MIPS32_EF_R6
+#define EF_R7 MIPS32_EF_R7
+#define EF_R8 MIPS32_EF_R8
+#define EF_R9 MIPS32_EF_R9
+#define EF_R10 MIPS32_EF_R10
+#define EF_R11 MIPS32_EF_R11
+#define EF_R12 MIPS32_EF_R12
+#define EF_R13 MIPS32_EF_R13
+#define EF_R14 MIPS32_EF_R14
+#define EF_R15 MIPS32_EF_R15
+#define EF_R16 MIPS32_EF_R16
+#define EF_R17 MIPS32_EF_R17
+#define EF_R18 MIPS32_EF_R18
+#define EF_R19 MIPS32_EF_R19
+#define EF_R20 MIPS32_EF_R20
+#define EF_R21 MIPS32_EF_R21
+#define EF_R22 MIPS32_EF_R22
+#define EF_R23 MIPS32_EF_R23
+#define EF_R24 MIPS32_EF_R24
+#define EF_R25 MIPS32_EF_R25
+#define EF_R26 MIPS32_EF_R26
+#define EF_R27 MIPS32_EF_R27
+#define EF_R28 MIPS32_EF_R28
+#define EF_R29 MIPS32_EF_R29
+#define EF_R30 MIPS32_EF_R30
+#define EF_R31 MIPS32_EF_R31
+#define EF_LO MIPS32_EF_LO
+#define EF_HI MIPS32_EF_HI
+#define EF_CP0_EPC MIPS32_EF_CP0_EPC
+#define EF_CP0_BADVADDR MIPS32_EF_CP0_BADVADDR
+#define EF_CP0_STATUS MIPS32_EF_CP0_STATUS
+#define EF_CP0_CAUSE MIPS32_EF_CP0_CAUSE
+#define EF_UNUSED0 MIPS32_EF_UNUSED0
+#define EF_SIZE MIPS32_EF_SIZE
+
+#elif defined(CONFIG_64BIT)
+
+#define EF_R0 MIPS64_EF_R0
+#define EF_R1 MIPS64_EF_R1
+#define EF_R2 MIPS64_EF_R2
+#define EF_R3 MIPS64_EF_R3
+#define EF_R4 MIPS64_EF_R4
+#define EF_R5 MIPS64_EF_R5
+#define EF_R6 MIPS64_EF_R6
+#define EF_R7 MIPS64_EF_R7
+#define EF_R8 MIPS64_EF_R8
+#define EF_R9 MIPS64_EF_R9
+#define EF_R10 MIPS64_EF_R10
+#define EF_R11 MIPS64_EF_R11
+#define EF_R12 MIPS64_EF_R12
+#define EF_R13 MIPS64_EF_R13
+#define EF_R14 MIPS64_EF_R14
+#define EF_R15 MIPS64_EF_R15
+#define EF_R16 MIPS64_EF_R16
+#define EF_R17 MIPS64_EF_R17
+#define EF_R18 MIPS64_EF_R18
+#define EF_R19 MIPS64_EF_R19
+#define EF_R20 MIPS64_EF_R20
+#define EF_R21 MIPS64_EF_R21
+#define EF_R22 MIPS64_EF_R22
+#define EF_R23 MIPS64_EF_R23
+#define EF_R24 MIPS64_EF_R24
+#define EF_R25 MIPS64_EF_R25
+#define EF_R26 MIPS64_EF_R26
+#define EF_R27 MIPS64_EF_R27
+#define EF_R28 MIPS64_EF_R28
+#define EF_R29 MIPS64_EF_R29
+#define EF_R30 MIPS64_EF_R30
+#define EF_R31 MIPS64_EF_R31
+#define EF_LO MIPS64_EF_LO
+#define EF_HI MIPS64_EF_HI
+#define EF_CP0_EPC MIPS64_EF_CP0_EPC
+#define EF_CP0_BADVADDR MIPS64_EF_CP0_BADVADDR
+#define EF_CP0_STATUS MIPS64_EF_CP0_STATUS
+#define EF_CP0_CAUSE MIPS64_EF_CP0_CAUSE
+#define EF_SIZE MIPS64_EF_SIZE
#endif /* CONFIG_64BIT */
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index 202e581..7fdf1de 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -58,12 +58,6 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
#include <asm/processor.h>
-/*
- * When this file is selected, we are definitely running a 64bit kernel.
- * So using the right regs define in asm/reg.h
- */
-#define WANT_COMPAT_REG_H
-
/* These MUST be defined before elf.h gets included */
extern void elf32_core_copy_regs(elf_gregset_t grp, struct pt_regs *regs);
#define ELF_CORE_COPY_REGS(_dest, _regs) elf32_core_copy_regs(_dest, _regs);
@@ -135,21 +129,21 @@ void elf32_core_copy_regs(elf_gregset_t grp, struct pt_regs *regs)
{
int i;
- for (i = 0; i < EF_R0; i++)
+ for (i = 0; i < MIPS32_EF_R0; i++)
grp[i] = 0;
- grp[EF_R0] = 0;
+ grp[MIPS32_EF_R0] = 0;
for (i = 1; i <= 31; i++)
- grp[EF_R0 + i] = (elf_greg_t) regs->regs[i];
- grp[EF_R26] = 0;
- grp[EF_R27] = 0;
- grp[EF_LO] = (elf_greg_t) regs->lo;
- grp[EF_HI] = (elf_greg_t) regs->hi;
- grp[EF_CP0_EPC] = (elf_greg_t) regs->cp0_epc;
- grp[EF_CP0_BADVADDR] = (elf_greg_t) regs->cp0_badvaddr;
- grp[EF_CP0_STATUS] = (elf_greg_t) regs->cp0_status;
- grp[EF_CP0_CAUSE] = (elf_greg_t) regs->cp0_cause;
-#ifdef EF_UNUSED0
- grp[EF_UNUSED0] = 0;
+ grp[MIPS32_EF_R0 + i] = (elf_greg_t) regs->regs[i];
+ grp[MIPS32_EF_R26] = 0;
+ grp[MIPS32_EF_R27] = 0;
+ grp[MIPS32_EF_LO] = (elf_greg_t) regs->lo;
+ grp[MIPS32_EF_HI] = (elf_greg_t) regs->hi;
+ grp[MIPS32_EF_CP0_EPC] = (elf_greg_t) regs->cp0_epc;
+ grp[MIPS32_EF_CP0_BADVADDR] = (elf_greg_t) regs->cp0_badvaddr;
+ grp[MIPS32_EF_CP0_STATUS] = (elf_greg_t) regs->cp0_status;
+ grp[MIPS32_EF_CP0_CAUSE] = (elf_greg_t) regs->cp0_cause;
+#ifdef MIPS32_EF_UNUSED0
+ grp[MIPS32_EF_UNUSED0] = 0;
#endif
}
--
1.9.1
