提交 8d29b7b9 编写于 作者: B Ben Nizette 提交者: Haavard Skinnemoen

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: NBen Nizette <bn@niasdigital.com>
Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
上级 7cb36b6c
......@@ -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
......
......@@ -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
......@@ -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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