diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-04 08:42:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-04 08:42:29 -0800 |
| commit | 609e3ff3ff797c0ddba1c61c8eb83923586ed079 (patch) | |
| tree | 2fe9f88a574b3fb913e5c51962e4c39fce11e334 /arch/sparc/kernel/syscalls.S | |
| parent | 57302e0ddf8a210a66fd8a1a2fa50844863b5ded (diff) | |
| parent | 0032c857454581510de1ca12615de5e38e543c92 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
"Two small fixes for Sparc, nobody uses sparc, so these are low risk :-)
1) Piggyback is too picky about the symbol types that _start and _end
have in the final kernel image, and it thus breaks with newer
binutils. Future proof by getting rid of the symbol type checks.
2) exit_group() should kill register windows on sparc64 the same way
we do for plain exit(). Thanks to Al Viro for spotting this."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix piggyback with newer binutils.
sparc64: exit_group should kill register windows just like plain exit.
Diffstat (limited to 'arch/sparc/kernel/syscalls.S')
| -rw-r--r-- | arch/sparc/kernel/syscalls.S | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index 7f5f65d0b3fd..bf2347794e33 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -118,10 +118,20 @@ ret_from_syscall: ba,pt %xcc, ret_sys_call ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 + .globl sparc_exit_group + .type sparc_exit_group,#function +sparc_exit_group: + sethi %hi(sys_exit_group), %g7 + ba,pt %xcc, 1f + or %g7, %lo(sys_exit_group), %g7 + .size sparc_exit_group,.-sparc_exit_group + .globl sparc_exit .type sparc_exit,#function sparc_exit: - rdpr %pstate, %g2 + sethi %hi(sys_exit), %g7 + or %g7, %lo(sys_exit), %g7 +1: rdpr %pstate, %g2 wrpr %g2, PSTATE_IE, %pstate rdpr %otherwin, %g1 rdpr %cansave, %g3 @@ -129,7 +139,7 @@ sparc_exit: wrpr %g3, 0x0, %cansave wrpr %g0, 0x0, %otherwin wrpr %g2, 0x0, %pstate - ba,pt %xcc, sys_exit + jmpl %g7, %g0 stb %g0, [%g6 + TI_WSAVED] .size sparc_exit,.-sparc_exit |