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sh: Kill off sh64's hand-rolled syscall tracer.

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This is no longer necessary, as there are now sufficient generic
alternatives available.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-05-08 17:25:35 +09:00
parent 1af2fe45fe
commit cb3a86c89e
5 changed files with 2 additions and 232 deletions
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57
arch/sh/kernel/cpu/sh5/entry.S
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@ -812,27 +812,6 @@ no_underflow:
! exceptions
add SP, ZERO, r14
#ifdef CONFIG_POOR_MANS_STRACE
/* We've pushed all the registers now, so only r2-r4 hold anything
* useful. Move them into callee save registers */
or r2, ZERO, r28
or r3, ZERO, r29
or r4, ZERO, r30
/* Preserve r2 as the event code */
movi evt_debug, r3
ori r3, 1, r3
ptabs r3, tr0
or SP, ZERO, r6
getcon TRA, r5
blink tr0, LINK
or r28, ZERO, r2
or r29, ZERO, r3
or r30, ZERO, r4
#endif
/* For syscall and debug race condition, get TRA now */
getcon TRA, r5
@ -887,11 +866,6 @@ no_underflow:
*/
.global ret_from_irq
ret_from_irq:
#ifdef CONFIG_POOR_MANS_STRACE
pta evt_debug_ret_from_irq, tr0
ori SP, 0, r2
blink tr0, LINK
#endif
ld.q SP, FRAME_S(FSSR), r6
shlri r6, 30, r6
andi r6, 1, r6
@ -905,12 +879,6 @@ ret_from_irq:
ret_from_exception:
preempt_stop()
#ifdef CONFIG_POOR_MANS_STRACE
pta evt_debug_ret_from_exc, tr0
ori SP, 0, r2
blink tr0, LINK
#endif
ld.q SP, FRAME_S(FSSR), r6
shlri r6, 30, r6
andi r6, 1, r6
@ -1236,18 +1204,6 @@ syscall_bad:
.global syscall_ret
syscall_ret:
st.q SP, FRAME_R(9), r2 /* Expecting SP back to BASIC frame */
#ifdef CONFIG_POOR_MANS_STRACE
/* nothing useful in registers at this point */
movi evt_debug2, r5
ori r5, 1, r5
ptabs r5, tr0
ld.q SP, FRAME_R(9), r2
or SP, ZERO, r3
blink tr0, LINK
#endif
ld.q SP, FRAME_S(FSPC), r2
addi r2, 4, r2 /* Move PC, being pre-execution event */
st.q SP, FRAME_S(FSPC), r2
@ -1268,25 +1224,12 @@ ret_from_fork:
ptabs r5, tr0
blink tr0, LINK
#ifdef CONFIG_POOR_MANS_STRACE
/* nothing useful in registers at this point */
movi evt_debug2, r5
ori r5, 1, r5
ptabs r5, tr0
ld.q SP, FRAME_R(9), r2
or SP, ZERO, r3
blink tr0, LINK
#endif
ld.q SP, FRAME_S(FSPC), r2
addi r2, 4, r2 /* Move PC, being pre-execution event */
st.q SP, FRAME_S(FSPC), r2
pta ret_from_syscall, tr0
blink tr0, ZERO
syscall_allowed:
/* Use LINK to deflect the exit point, default is syscall_ret */
pta syscall_ret, tr0