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powerpc: EX_TABLE macro for exception tables

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This macro is taken from s390, and allows more flexibility in
changing exception table format.

mpe: Put it in ppc_asm.h and only define one version using
stringinfy_in_c(). Add some empty definitions and headers to keep the
selftests happy.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin
2016-10-13 16:42:53 +11:00
committed by Michael Ellerman
parent 997e200182
commit 24bfa6a9e0
21 changed files with 241 additions and 327 deletions
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24
arch/powerpc/lib/ldstfp.S
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@@ -21,18 +21,12 @@
#define STKFRM (PPC_MIN_STKFRM + 16)
.macro extab instr,handler
.section __ex_table,"a"
PPC_LONG \instr,\handler
.previous
.endm
.macro inst32 op
reg = 0
.rept 32
20: \op reg,0,r4
b 3f
extab 20b,99f
EX_TABLE(20b,99f)
reg = reg + 1
.endr
.endm
@@ -100,7 +94,7 @@ _GLOBAL(do_lfs)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
/* Load FP reg N from double at *p. N is in r3, p in r4. */
_GLOBAL(do_lfd)
@@ -127,7 +121,7 @@ _GLOBAL(do_lfd)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
/* Store FP reg N to float at *p. N is in r3, p in r4. */
_GLOBAL(do_stfs)
@@ -154,7 +148,7 @@ _GLOBAL(do_stfs)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
/* Store FP reg N to double at *p. N is in r3, p in r4. */
_GLOBAL(do_stfd)
@@ -181,7 +175,7 @@ _GLOBAL(do_stfd)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
#ifdef CONFIG_ALTIVEC
/* Get the contents of vrN into v0; N is in r3. */
@@ -248,7 +242,7 @@ _GLOBAL(do_lvx)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
/* Store vector reg N to *p. N is in r3, p in r4. */
_GLOBAL(do_stvx)
@@ -276,7 +270,7 @@ _GLOBAL(do_stvx)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_VSX
@@ -344,7 +338,7 @@ _GLOBAL(do_lxvd2x)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
/* Store VSX reg N to vector doubleword *p. N is in r3, p in r4. */
_GLOBAL(do_stxvd2x)
@@ -372,7 +366,7 @@ _GLOBAL(do_stxvd2x)
mr r3,r9
addi r1,r1,STKFRM
blr
extab 2b,3b
EX_TABLE(2b,3b)
#endif /* CONFIG_VSX */