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| author | Thomas Chou <thomas@wytron.com.tw> | 2010-05-21 11:08:03 +0800 |
|---|---|---|
| committer | Scott McNutt <smcnutt@psyent.com> | 2010-05-28 10:56:03 -0400 |
| commit | 0df01fd3d71481b5cc7aeea6a741b9fc3be15178 (patch) | |
| tree | a5eb637453d7f400eb1f9709b376ad247905e265 /arch/nios2/cpu | |
| parent | 661ba14051db6766932fcb50ba1ec7c67f230054 (diff) | |
| download | blackbird-obmc-uboot-0df01fd3d71481b5cc7aeea6a741b9fc3be15178.tar.gz blackbird-obmc-uboot-0df01fd3d71481b5cc7aeea6a741b9fc3be15178.zip | |
nios2: fix r15 issue for gcc4
The "-ffixed-r15" option doesn't work well for gcc4. Since we
don't use gp for small data with option "-G0", we can use gp
as global data pointer. This allows compiler to use r15. It
is necessary for gcc4 to work properly.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
Diffstat (limited to 'arch/nios2/cpu')
| -rw-r--r-- | arch/nios2/cpu/start.S | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/nios2/cpu/start.S b/arch/nios2/cpu/start.S index d1016ea718..76d3b52154 100644 --- a/arch/nios2/cpu/start.S +++ b/arch/nios2/cpu/start.S @@ -113,13 +113,6 @@ _cur: movhi r5, %hi(_cur - _start) bne r5, r6, 4b 5: - /* GLOBAL POINTER -- the global pointer is used to reference - * "small data" (see -G switch). The linker script must - * provide the gp address. - */ - movhi gp, %hi(_gp) - ori gp, gp, %lo(_gp) - /* JUMP TO RELOC ADDR */ movhi r4, %hi(_reloc) ori r4, r4, %lo(_reloc) |
