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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-13 03:22:53 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-14 23:06:52 -0400 |
| commit | ee1e17c69eb3c843d283eb3fbed1616ed9a122eb (patch) | |
| tree | 18c4beae1331663fadec51f914f2ef50ed1be7fb /arch/blackfin/kernel/entry.S | |
| parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
| download | blackbird-obmc-linux-ee1e17c69eb3c843d283eb3fbed1616ed9a122eb.tar.gz blackbird-obmc-linux-ee1e17c69eb3c843d283eb3fbed1616ed9a122eb.zip | |
blackfin: convert kernel_thread() and kernel_execve() to generic ones
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/blackfin/kernel/entry.S')
| -rw-r--r-- | arch/blackfin/kernel/entry.S | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S index f33792cc1a0d..78f4f637e155 100644 --- a/arch/blackfin/kernel/entry.S +++ b/arch/blackfin/kernel/entry.S @@ -46,22 +46,16 @@ ENTRY(_ret_from_fork) SP += -12; pseudo_long_call _schedule_tail, p5; SP += 12; - r0 = [sp + PT_IPEND]; - cc = bittst(r0,1); - if cc jump .Lin_kernel; + p1 = [sp++]; + r0 = [sp++]; + cc = p1 == 0; + if cc jump .Lfork; + sp += -12; + call (p1); + sp += 12; +.Lfork: RESTORE_CONTEXT rti; -.Lin_kernel: - bitclr(r0,1); - [sp + PT_IPEND] = r0; - /* do a 'fake' RTI by jumping to [RETI] - * to avoid clearing supervisor mode in child - */ - r0 = [sp + PT_PC]; - [sp + PT_P0] = r0; - - RESTORE_ALL_SYS - jump (p0); ENDPROC(_ret_from_fork) ENTRY(_sys_vfork) |
