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authorBen Nizette <bn@niasdigital.com>2009-01-14 09:32:19 +1100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-01-16 09:31:57 +0100
commit8d29b7b9f81d6b83d869ff054e6c189d6da73f1f (patch)
treedab61206aa71a650f53adb52bf02c17f7cd7a787
parent7cb36b6ccdca03bd87e8faca7fd920643dd1aec7 (diff)
downloadop-kernel-dev-8d29b7b9f81d6b83d869ff054e6c189d6da73f1f.zip
op-kernel-dev-8d29b7b9f81d6b83d869ff054e6c189d6da73f1f.tar.gz
avr32: Fix out-of-range rcalls in large kernels
Replace handcoded rcall instructions with the call pseudo-instruction. For kernels too far over 1MB the rcall instruction can't reach and linking will fail. We already call the final linker with --relax which converts call pseudo-instructions to the right things anyway. This fixes arch/avr32/kernel/built-in.o: In function `syscall_exit_work': (.ex.text+0x198): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `schedule' defined in .sched.text section in kernel/built-in.o arch/avr32/kernel/built-in.o: In function `fault_exit_work': (.ex.text+0x3b6): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `schedule' defined in .sched.text section in kernel/built-in.o But I'm still left with arch/avr32/kernel/built-in.o:(.fixup+0x2): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+45a arch/avr32/kernel/built-in.o:(.fixup+0x8): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+8ea arch/avr32/kernel/built-in.o:(.fixup+0xe): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+abe arch/avr32/kernel/built-in.o:(.fixup+0x14): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ac8 arch/avr32/kernel/built-in.o:(.fixup+0x1a): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ad2 arch/avr32/kernel/built-in.o:(.fixup+0x20): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+adc arch/avr32/kernel/built-in.o:(.fixup+0x26): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ae6 arch/avr32/kernel/built-in.o:(.fixup+0x2c): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+af0 arch/avr32/kernel/built-in.o:(.fixup+0x32): additional relocation overflows omitted from the output These are caused by a similar problem with 'rjmp' instructions. Unfortunately, there's no easy fix for these at the moment since we don't have a arbitrary-range 'jmp' instruction similar to 'call'. Signed-off-by: Ben Nizette <bn@niasdigital.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
-rw-r--r--arch/avr32/kernel/entry-avr32b.S60
-rw-r--r--arch/avr32/kernel/syscall-stubs.S14
-rw-r--r--arch/avr32/lib/strnlen_user.S2
3 files changed, 38 insertions, 38 deletions
diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S
index 33d4937..009a801 100644
--- a/arch/avr32/kernel/entry-avr32b.S
+++ b/arch/avr32/kernel/entry-avr32b.S
@@ -150,10 +150,10 @@ page_not_present:
tlbmiss_restore
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_page_fault
+ call do_page_fault
rjmp ret_from_exception
.align 2
@@ -250,7 +250,7 @@ syscall_badsys:
.global ret_from_fork
ret_from_fork:
- rcall schedule_tail
+ call schedule_tail
/* check for syscall tracing */
get_thread_info r0
@@ -261,7 +261,7 @@ ret_from_fork:
syscall_trace_enter:
pushm r8-r12
- rcall syscall_trace
+ call syscall_trace
popm r8-r12
rjmp syscall_trace_cont
@@ -269,14 +269,14 @@ syscall_exit_work:
bld r1, TIF_SYSCALL_TRACE
brcc 1f
unmask_interrupts
- rcall syscall_trace
+ call syscall_trace
mask_interrupts
ld.w r1, r0[TI_flags]
1: bld r1, TIF_NEED_RESCHED
brcc 2f
unmask_interrupts
- rcall schedule
+ call schedule
mask_interrupts
ld.w r1, r0[TI_flags]
rjmp 1b
@@ -287,7 +287,7 @@ syscall_exit_work:
unmask_interrupts
mov r12, sp
mov r11, r0
- rcall do_notify_resume
+ call do_notify_resume
mask_interrupts
ld.w r1, r0[TI_flags]
rjmp 1b
@@ -394,7 +394,7 @@ handle_critical:
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_critical_exception
+ call do_critical_exception
/* We should never get here... */
bad_return:
@@ -407,18 +407,18 @@ bad_return:
do_bus_error_write:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mov r11, 1
rjmp 1f
do_bus_error_read:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mov r11, 0
1: mfsr r12, SYSREG_BEAR
mov r10, sp
- rcall do_bus_error
+ call do_bus_error
rjmp ret_from_exception
.align 1
@@ -433,7 +433,7 @@ do_nmi_ll:
1: pushm r8, r9 /* PC and SR */
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_nmi
+ call do_nmi
popm r8-r9
mtsr SYSREG_RAR_NMI, r8
tst r0, r0
@@ -457,29 +457,29 @@ do_nmi_ll:
handle_address_fault:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_address_exception
+ call do_address_exception
rjmp ret_from_exception
handle_protection_fault:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_page_fault
+ call do_page_fault
rjmp ret_from_exception
.align 1
do_illegal_opcode_ll:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
mfsr r12, SYSREG_ECR
mov r11, sp
- rcall do_illegal_opcode
+ call do_illegal_opcode
rjmp ret_from_exception
do_dtlb_modified:
@@ -513,11 +513,11 @@ do_dtlb_modified:
do_fpe_ll:
sub sp, 4
stmts --sp, r0-lr
- rcall save_full_context_ex
+ call save_full_context_ex
unmask_interrupts
mov r12, 26
mov r11, sp
- rcall do_fpe
+ call do_fpe
rjmp ret_from_exception
ret_from_exception:
@@ -553,7 +553,7 @@ fault_resume_kernel:
lddsp r4, sp[REG_SR]
bld r4, SYSREG_GM_OFFSET
brcs 1f
- rcall preempt_schedule_irq
+ call preempt_schedule_irq
1:
#endif
@@ -582,7 +582,7 @@ fault_exit_work:
bld r1, TIF_NEED_RESCHED
brcc 1f
unmask_interrupts
- rcall schedule
+ call schedule
mask_interrupts
ld.w r1, r0[TI_flags]
rjmp fault_exit_work
@@ -593,7 +593,7 @@ fault_exit_work:
unmask_interrupts
mov r12, sp
mov r11, r0
- rcall do_notify_resume
+ call do_notify_resume
mask_interrupts
ld.w r1, r0[TI_flags]
rjmp fault_exit_work
@@ -616,10 +616,10 @@ handle_debug:
.Ldebug_fixup_cont:
#ifdef CONFIG_TRACE_IRQFLAGS
- rcall trace_hardirqs_off
+ call trace_hardirqs_off
#endif
mov r12, sp
- rcall do_debug
+ call do_debug
mov sp, r12
lddsp r2, sp[REG_SR]
@@ -643,7 +643,7 @@ handle_debug:
mtsr SYSREG_RSR_DBG, r11
mtsr SYSREG_RAR_DBG, r10
#ifdef CONFIG_TRACE_IRQFLAGS
- rcall trace_hardirqs_on
+ call trace_hardirqs_on
1:
#endif
ldmts sp++, r0-lr
@@ -676,7 +676,7 @@ debug_resume_kernel:
#ifdef CONFIG_TRACE_IRQFLAGS
bld r11, SYSREG_GM_OFFSET
brcc 1f
- rcall trace_hardirqs_on
+ call trace_hardirqs_on
1:
#endif
mfsr r2, SYSREG_SR
@@ -747,7 +747,7 @@ irq_level\level:
mov r11, sp
mov r12, \level
- rcall do_IRQ
+ call do_IRQ
lddsp r4, sp[REG_SR]
bfextu r4, r4, SYSREG_M0_OFFSET, 3
@@ -767,7 +767,7 @@ irq_level\level:
1:
#ifdef CONFIG_TRACE_IRQFLAGS
- rcall trace_hardirqs_on
+ call trace_hardirqs_on
#endif
popm r8-r9
mtsr rar_int\level, r8
@@ -807,7 +807,7 @@ irq_level\level:
lddsp r4, sp[REG_SR]
bld r4, SYSREG_GM_OFFSET
brcs 1b
- rcall preempt_schedule_irq
+ call preempt_schedule_irq
#endif
rjmp 1b
.endm
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
index 673178e..f7244cd 100644
--- a/arch/avr32/kernel/syscall-stubs.S
+++ b/arch/avr32/kernel/syscall-stubs.S
@@ -61,7 +61,7 @@ __sys_execve:
__sys_mmap2:
pushm lr
st.w --sp, ARG6
- rcall sys_mmap2
+ call sys_mmap2
sub sp, -4
popm pc
@@ -70,7 +70,7 @@ __sys_mmap2:
__sys_sendto:
pushm lr
st.w --sp, ARG6
- rcall sys_sendto
+ call sys_sendto
sub sp, -4
popm pc
@@ -79,7 +79,7 @@ __sys_sendto:
__sys_recvfrom:
pushm lr
st.w --sp, ARG6
- rcall sys_recvfrom
+ call sys_recvfrom
sub sp, -4
popm pc
@@ -88,7 +88,7 @@ __sys_recvfrom:
__sys_pselect6:
pushm lr
st.w --sp, ARG6
- rcall sys_pselect6
+ call sys_pselect6
sub sp, -4
popm pc
@@ -97,7 +97,7 @@ __sys_pselect6:
__sys_splice:
pushm lr
st.w --sp, ARG6
- rcall sys_splice
+ call sys_splice
sub sp, -4
popm pc
@@ -106,7 +106,7 @@ __sys_splice:
__sys_epoll_pwait:
pushm lr
st.w --sp, ARG6
- rcall sys_epoll_pwait
+ call sys_epoll_pwait
sub sp, -4
popm pc
@@ -115,6 +115,6 @@ __sys_epoll_pwait:
__sys_sync_file_range:
pushm lr
st.w --sp, ARG6
- rcall sys_sync_file_range
+ call sys_sync_file_range
sub sp, -4
popm pc
diff --git a/arch/avr32/lib/strnlen_user.S b/arch/avr32/lib/strnlen_user.S
index 65ce11a..e46f4724 100644
--- a/arch/avr32/lib/strnlen_user.S
+++ b/arch/avr32/lib/strnlen_user.S
@@ -48,7 +48,7 @@ adjust_length:
lddpc lr, _task_size
sub r11, lr, r12
mov r9, r11
- rcall __strnlen_user
+ call __strnlen_user
cp.w r12, r9
brgt 1f
popm pc
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