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xtensa: provide proper assembler function boundaries with ENDPROC()

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Use ENDPROC() to mark the end of assembler functions.

Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Chris Zankel
2012-11-16 16:16:20 -08:00
parent c0226e34a4
commit d1538c4675
7 changed files with 147 additions and 25 deletions
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30
arch/xtensa/kernel/entry.S
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@@ -219,6 +219,7 @@ _user_exception:
j common_exception
ENDPROC(user_exception)
/*
* First-level exit handler for kernel exceptions
@@ -641,6 +642,8 @@ common_exception_exit:
l32i a1, a1, PT_AREG1
rfde
ENDPROC(kernel_exception)
/*
* Debug exception handler.
*
@@ -701,6 +704,7 @@ ENTRY(debug_exception)
/* Debug exception while in exception mode. */
1: j 1b // FIXME!!
ENDPROC(debug_exception)
/*
* We get here in case of an unrecoverable exception.
@@ -751,6 +755,7 @@ ENTRY(unrecoverable_exception)
1: j 1b
ENDPROC(unrecoverable_exception)
/* -------------------------- FAST EXCEPTION HANDLERS ----------------------- */
@@ -929,6 +934,7 @@ ENTRY(fast_alloca)
l32i a2, a2, PT_AREG2
rfe
ENDPROC(fast_alloca)
/*
* fast system calls.
@@ -966,6 +972,8 @@ ENTRY(fast_syscall_kernel)
j kernel_exception
ENDPROC(fast_syscall_kernel)
ENTRY(fast_syscall_user)
/* Skip syscall. */
@@ -983,6 +991,8 @@ ENTRY(fast_syscall_user)
j user_exception
ENDPROC(fast_syscall_user)
ENTRY(fast_syscall_unrecoverable)
/* Restore all states. */
@@ -995,7 +1005,7 @@ ENTRY(fast_syscall_unrecoverable)
movi a0, unrecoverable_exception
callx0 a0
ENDPROC(fast_syscall_unrecoverable)
/*
* sysxtensa syscall handler
@@ -1101,7 +1111,7 @@ CATCH
movi a2, -EINVAL
rfe
ENDPROC(fast_syscall_xtensa)
/* fast_syscall_spill_registers.
@@ -1160,6 +1170,8 @@ ENTRY(fast_syscall_spill_registers)
movi a2, 0
rfe
ENDPROC(fast_syscall_spill_registers)
/* Fixup handler.
*
* We get here if the spill routine causes an exception, e.g. tlb miss.
@@ -1464,6 +1476,8 @@ ENTRY(_spill_registers)
callx0 a0 # should not return
1: j 1b
ENDPROC(_spill_registers)
#ifdef CONFIG_MMU
/*
* We should never get here. Bail out!
@@ -1475,6 +1489,8 @@ ENTRY(fast_second_level_miss_double_kernel)
callx0 a0 # should not return
1: j 1b
ENDPROC(fast_second_level_miss_double_kernel)
/* First-level entry handler for user, kernel, and double 2nd-level
* TLB miss exceptions. Note that for now, user and kernel miss
* exceptions share the same entry point and are handled identically.
@@ -1682,6 +1698,7 @@ ENTRY(fast_second_level_miss)
j _kernel_exception
1: j _user_exception
ENDPROC(fast_second_level_miss)
/*
* StoreProhibitedException
@@ -1777,6 +1794,9 @@ ENTRY(fast_store_prohibited)
bbsi.l a2, PS_UM_BIT, 1f
j _kernel_exception
1: j _user_exception
ENDPROC(fast_store_prohibited)
#endif /* CONFIG_MMU */
/*
@@ -1787,6 +1807,7 @@ ENTRY(fast_store_prohibited)
*/
ENTRY(system_call)
entry a1, 32
/* regs->syscall = regs->areg[2] */
@@ -1831,6 +1852,8 @@ ENTRY(system_call)
callx4 a4
retw
ENDPROC(system_call)
/*
* Task switch.
@@ -1899,6 +1922,7 @@ ENTRY(_switch_to)
retw
ENDPROC(_switch_to)
ENTRY(ret_from_fork)
@@ -1914,6 +1938,8 @@ ENTRY(ret_from_fork)
j common_exception_return
ENDPROC(ret_from_fork)
/*
* Kernel thread creation helper
* On entry, set up by copy_thread: a2 = thread_fn, a3 = thread_fn arg