redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/arch/arm/kernel
History
Ard Biesheuvel 7d485f647c ARM: 8220/1: allow modules outside of bl range 
Loading modules far away from the kernel in memory is problematic
because the 'bl' instruction only has limited reach, and modules are not
built with PLTs. Instead of using the -mlong-calls option (which affects
all compiler emitted bl instructions, but not the ones in assembler),
this patch allocates some additional space at module load time, and
populates it with PLT like veneers when encountering relocations that
are out of range.

This should work with all relocations against symbols exported by the
kernel, including those resulting from GCC generated implicit function
calls for ftrace etc.

The module memory size increases by about 5% on average, regardless of
whether any PLT entries were actually needed. However, due to the page
based rounding that occurs when allocating module memory, the average
memory footprint increase is negligible.

Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-08 10:42:34 +01:00
..
.gitignore
arch_timer.c
armksyms.c
asm-offsets.c Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc 2015-04-15 13:53:55 -07:00
atags.h
atags_compat.c
atags_parse.c
atags_proc.c
bios32.c ARM: 8293/1: kernel: fix pci_mmap_page_range() offset calculation 2015-02-23 14:43:58 +00:00
calls.S ARM: wire up execveat syscall 2015-01-07 20:31:54 +00:00
cpuidle.c ARM: cpuidle: Document the code 2015-03-25 09:53:43 +01:00
crash_dump.c
debug.S
devtree.c
dma-isa.c
dma.c
early_printk.c
elf.c
entry-armv.S ARM: 8322/1: keep .text and .fixup regions closer together 2015-03-29 23:11:56 +01:00
entry-common.S
entry-ftrace.S
entry-header.S ARM: 8266/1: Remove early stack deallocation from restore_user_regs 2015-01-12 19:26:57 +00:00
entry-v7m.S ARM: 8340/1: ARMv7-M: Enlarge vector table up to 256 entries 2015-05-08 10:42:21 +01:00
fiq.c
fiqasm.S
ftrace.c ARM: kprobes: enable OPTPROBES for ARM 32 2015-01-13 16:10:17 +00:00
head-common.S
head-nommu.S ARM: Fix nommu booting 2015-04-21 15:26:16 +01:00
head.S ARM: 8314/1: replace PROCINFO embedded branch with relative offset 2015-03-28 15:46:14 +00:00
hibernate.c ARM: move reboot code to arch/arm/kernel/reboot.c 2015-04-02 09:50:45 +01:00
hw_breakpoint.c perf: Remove type specific target pointers 2015-03-23 10:58:04 +01:00
hyp-stub.S
insn.c
io.c
irq.c ARM: 8261/1: l2c: Get outer cache .write_sec callback from mach_desc only if not NULL 2015-01-16 14:35:33 +00:00
isa.c
iwmmxt.S
jump_label.c ARM: kprobes: enable OPTPROBES for ARM 32 2015-01-13 16:10:17 +00:00
kgdb.c ARM: probes: move all probe code to dedicate directory 2015-01-09 09:36:50 +00:00
machine_kexec.c ARM: 8338/1: kexec: Relax SMP validation to improve DT compatibility 2015-04-02 09:59:43 +01:00
Makefile ARM: 8220/1: allow modules outside of bl range 2015-05-08 10:42:34 +01:00
module-plts.c ARM: 8220/1: allow modules outside of bl range 2015-05-08 10:42:34 +01:00
module.c ARM: 8220/1: allow modules outside of bl range 2015-05-08 10:42:34 +01:00
module.lds ARM: 8220/1: allow modules outside of bl range 2015-05-08 10:42:34 +01:00
opcodes.c
patch.c ARM: probes: move all probe code to dedicate directory 2015-01-09 09:36:50 +00:00
perf_callchain.c
perf_event.c ARM: perf: reject groups spanning multiple hardware PMUs 2015-03-19 19:45:22 +00:00
perf_event_cpu.c ARM: pmu: add support for interrupt-affinity property 2015-03-24 15:07:57 +00:00
perf_event_v6.c
perf_event_v7.c ARM: perf: Add support for Scorpion PMUs 2015-03-17 18:34:01 +00:00
perf_event_xscale.c
perf_regs.c perf: Move task_pt_regs sampling into arch code 2015-01-09 11:12:28 +01:00
pj4-cp0.c
process.c Merge branches 'misc', 'vdso' and 'fixes' into for-next 2015-04-14 22:28:25 +01:00
psci-call.S ARM: 8307/1: psci: move psci firmware calls out of line 2015-03-29 23:11:17 +01:00
psci.c ARM: 8307/1: psci: move psci firmware calls out of line 2015-03-29 23:11:17 +01:00
psci_smp.c
ptrace.c
reboot.c ARM: move reboot code to arch/arm/kernel/reboot.c 2015-04-02 09:50:45 +01:00
reboot.h ARM: move reboot code to arch/arm/kernel/reboot.c 2015-04-02 09:50:45 +01:00
relocate_kernel.S
return_address.c ARM: 8328/1: remove empty preprocessor #else branch 2015-03-28 16:54:53 +00:00
setup.c Merge branches 'misc', 'vdso' and 'fixes' into for-next 2015-04-14 22:28:25 +01:00
signal.c arm: Remove signal translation and exec_domain 2015-04-12 20:58:24 +02:00
sigreturn_codes.S
sleep.S ARM: 8324/1: move cpu_resume() to .text section 2015-03-29 23:11:57 +01:00
smp.c ARM: 8338/1: kexec: Relax SMP validation to improve DT compatibility 2015-04-02 09:59:43 +01:00
smp_scu.c
smp_tlb.c
smp_twd.c
stacktrace.c
suspend.c ARM: 8248/1: pm: remove outdated comment 2015-01-21 15:58:57 +00:00
swp_emulate.c ARM: 8322/1: keep .text and .fixup regions closer together 2015-03-29 23:11:56 +01:00
sys_arm.c
sys_oabi-compat.c
tcm.c
thumbee.c
time.c ARM, clocksource/drivers: Provide read_boot_clock64() and read_persistent_clock64() and use them 2015-04-03 08:18:23 +02:00
topology.c
traps.c arm: Remove signal translation and exec_domain 2015-04-12 20:58:24 +02:00
unwind.c
v7m.c
vdso.c Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-04-14 21:03:26 -07:00
vmlinux.lds.S arm64 updates for 4.1: 2015-04-16 13:58:29 -05:00
xscale-cp0.c