The patch titled
FRV: arrange things such that BRA can reach from the trap table
has been added to the -mm tree. Its filename is
frv-arrange-things-such-that-bra-can-reach-from-the-trap.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: FRV: arrange things such that BRA can reach from the trap table
From: David Howells <[EMAIL PROTECTED]>
Arrange the sections in the FRV arch so that a BRA instruction with a
16-bit displacement can always reach from the trap table to entry.S,
tlb-miss.S and break.S.
The problem otherwise is that the linker can insert sufficient code between
the slots in the trap table and the targets of the branch instructions in
those slots that the displacement field in the instruction isn't
sufficiently large. This is because the branch targets were in the .text
section along with most of the other code in the kernel.
Signed-off-by: David Howells <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
arch/frv/kernel/break.S | 2 +-
arch/frv/kernel/entry.S | 2 +-
arch/frv/kernel/vmlinux.lds.S | 27 +++++++++++++++------------
arch/frv/mm/tlb-miss.S | 2 +-
4 files changed, 18 insertions(+), 15 deletions(-)
diff -puN
arch/frv/kernel/break.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
arch/frv/kernel/break.S
---
a/arch/frv/kernel/break.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
+++ a/arch/frv/kernel/break.S
@@ -63,7 +63,7 @@ __break_trace_through_exceptions:
# entry point for Break Exceptions/Interrupts
#
###############################################################################
- .text
+ .section .text.break
.balign 4
.globl __entry_break
__entry_break:
diff -puN
arch/frv/kernel/entry.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
arch/frv/kernel/entry.S
---
a/arch/frv/kernel/entry.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
+++ a/arch/frv/kernel/entry.S
@@ -38,7 +38,7 @@
#define nr_syscalls ((syscall_table_size)/4)
- .text
+ .section .text.entry
.balign 4
.macro LEDS val
diff -puN
arch/frv/kernel/vmlinux.lds.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
arch/frv/kernel/vmlinux.lds.S
---
a/arch/frv/kernel/vmlinux.lds.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
+++ a/arch/frv/kernel/vmlinux.lds.S
@@ -76,6 +76,12 @@ SECTIONS
*(.data.init_task)
}
+ . = ALIGN(4096);
+ .data.page_aligned : { *(.data.idt) }
+
+ . = ALIGN(L1_CACHE_BYTES);
+ .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
.trap : {
/* trap table management - read entry-table.S before modifying */
. = ALIGN(8192);
@@ -86,28 +92,25 @@ SECTIONS
*(.trap.break)
}
- . = ALIGN(4096);
- .data.page_aligned : { *(.data.idt) }
-
- . = ALIGN(L1_CACHE_BYTES);
- .data.cacheline_aligned : { *(.data.cacheline_aligned) }
-
/* Text and read-only data */
. = ALIGN(4);
_text = .;
_stext = .;
.text : {
- *(
- .text.start .text.*
+ *(.text.start)
+ *(.text.entry)
+ *(.text.break)
+ *(.text.tlbmiss)
+ TEXT_TEXT
+ SCHED_TEXT
+ LOCK_TEXT
#ifdef CONFIG_DEBUG_INFO
+ *(
.init.text
.exit.text
.exitcall.exit
-#endif
)
- TEXT_TEXT
- SCHED_TEXT
- LOCK_TEXT
+#endif
*(.fixup)
*(.gnu.warning)
*(.exitcall.exit)
diff -puN
arch/frv/mm/tlb-miss.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
arch/frv/mm/tlb-miss.S
---
a/arch/frv/mm/tlb-miss.S~frv-arrange-things-such-that-bra-can-reach-from-the-trap
+++ a/arch/frv/mm/tlb-miss.S
@@ -16,7 +16,7 @@
#include <asm/highmem.h>
#include <asm/spr-regs.h>
- .section .text
+ .section .text.tlbmiss
.balign 4
.globl __entry_insn_mmu_miss
_
Patches currently in -mm which might be from [EMAIL PROTECTED] are
origin.patch
git-mtd.patch
frv-fix-the-extern-declaration-of-kallsyms_num_syms.patch
frv-arrange-things-such-that-bra-can-reach-from-the-trap.patch
frv-permit-the-memory-to-be-located-elsewhere-in-nommu-mode.patch
frv-move-dma-macros-to-scatterlisth-for-consistency.patch
frv-remove-dead-config-symbol-from-frv-code.patch
64-bit-i_version-afs-fixes.patch
add-an-err_cast-function-to-complement-err_ptr-and-co.patch
convert-err_ptrptr_errp-instances-to-err_castp.patch
iget-introduce-a-function-to-register-iget-failure.patch
iget-use-iget_failed-in-afs.patch
iget-use-iget_failed-in-gfs2.patch
iget-stop-affs-from-using-iget-and-read_inode-try.patch
iget-stop-affs-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-autofs-from-using-iget-and-read_inode.patch
iget-stop-befs-from-using-iget-and-read_inode-try.patch
iget-stop-bfs-from-using-iget-and-read_inode-try.patch
iget-stop-cifs-from-using-iget-and-read_inode-try.patch
iget-stop-efs-from-using-iget-and-read_inode-try.patch
iget-stop-efs-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-ext2-from-using-iget-and-read_inode-try.patch
iget-stop-ext2-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-ext3-from-using-iget-and-read_inode-try.patch
iget-stop-ext3-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-ext4-from-using-iget-and-read_inode-try.patch
iget-stop-fat-from-using-iget-and-read_inode-try.patch
iget-stop-freevxfs-from-using-iget-and-read_inode.patch
iget-stop-freevxfs-from-using-iget-and-read_inode-fix.patch
iget-stop-freevxfs-from-using-iget-and-read_inode-checkpatch-fixes.patch
iget-stop-fuse-from-using-iget-and-read_inode-try.patch
iget-stop-hfsplus-from-using-iget-and-read_inode.patch
iget-stop-isofs-from-using-read_inode.patch
iget-stop-jffs2-from-using-iget-and-read_inode.patch
iget-stop-jfs-from-using-iget-and-read_inode-try.patch
iget-stop-the-minix-filesystem-from-using-iget-and.patch
iget-stop-the-minix-filesystem-from-using-iget-and-checkpatch-fixes.patch
iget-stop-procfs-from-using-iget-and-read_inode.patch
iget-stop-procfs-from-using-iget-and-read_inode-checkpatch-fixes.patch
iget-stop-qnx4-from-using-iget-and-read_inode-try.patch
iget-stop-qnx4-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-romfs-from-using-iget-and-read_inode.patch
iget-stop-romfs-from-using-iget-and-read_inode-checkpatch-fixes.patch
iget-stop-the-sysv-filesystem-from-using-iget-and.patch
iget-stop-the-sysv-filesystem-from-using-iget-and-checkpatch-fixes.patch
iget-stop-ufs-from-using-iget-and-read_inode-try.patch
iget-stop-ufs-from-using-iget-and-read_inode-try-checkpatch-fixes.patch
iget-stop-openpromfs-from-using-iget-and.patch
iget-stop-hostfs-from-using-iget-and-read_inode.patch
iget-stop-hostfs-from-using-iget-and-read_inode-checkpatch-fixes.patch
iget-stop-hppfs-from-using-iget-and-read_inode.patch
iget-remove-iget-and-the-read_inode-super-op-as.patch
iget-stop-unionfs-from-using-iget-and-read_inode.patch
unexport-asm-pageh.patch
add-cmpxchg_local-to-frv.patch
use-path_put-in-a-few-places-instead-of-mntdput.patch
suppress-aout-library-support-if-config_binfmt_aout.patch
suppress-aout-library-support-if-config_binfmt_aout-checkpatch-fixes.patch
usb-net2280-cant-have-a-function-called.patch
usb-net2280-cant-have-a-function-called-checkpatch-fixes.patch
mn10300-allocate-serial-port-uart-ids-for-on-chip-serial.patch
mn10300-add-the-mn10300-am33-architecture-to-the-kernel.patch
mn10300-add-the-mn10300-am33-architecture-to-the-kernel-fix.patch
mn10300-add-the-mn10300-am33-architecture-to-the-kernel-ia64-fix.patch
mutex-subsystem-synchro-test-module.patch
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