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avr32: Fix out-of-range rcalls in large kernels

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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>
This commit is contained in:
Ben Nizette
2009-01-14 09:32:19 +11:00
committed by Haavard Skinnemoen
parent 7cb36b6ccd
commit 8d29b7b9f8
3 changed files with 38 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/avr32/kernel/syscall-stubs.S
View File

@@ -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