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2007-01-15 Joseph Myers <joseph@codesourcery.com>

Browse Source 
Kazu Hirata  <kazu@codesourcery.com>

        * libc/machine/powerpc/setjmp.S (setjmp, longjmp): Add support
        for E500V1 and E500V2.
This commit is contained in:
Jeff Johnston 2007-01-15 16:41:08 +00:00
parent 153995f846
commit 94b91791ea
2 changed files with 86 additions and 2 deletions
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6
newlib/ChangeLog
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@ -1,3 +1,9 @@
2007-01-15 Joseph Myers <joseph@codesourcery.com>
Kazu Hirata <kazu@codesourcery.com>
* libc/machine/powerpc/setjmp.S (setjmp, longjmp): Add support
for E500V1 and E500V2.
2007-01-11 Jeff Johnston <jjohnstn@redhat.com>
* libm/configure.in: Always configure machine directory.

82
newlib/libc/machine/powerpc/setjmp.S
View File

@ -12,6 +12,35 @@ FUNC_START(setjmp)
addi 3,3,7 # align to 8 byte boundary
rlwinm 3,3,0,0,28
#endif
#if __SPE__
/* If we are E500, then save 64-bit registers. */
evstdd 1,0(3) # offset 0
evstdd 2,8(3) # offset 8
evstdd 13,16(3) # offset 16
evstdd 14,24(3) # offset 24
evstdd 15,32(3) # offset 32
evstdd 16,40(3) # offset 40
evstdd 17,48(3) # offset 48
evstdd 18,56(3) # offset 56
evstdd 19,64(3) # offset 64
evstdd 20,72(3) # offset 72
evstdd 21,80(3) # offset 80
evstdd 22,88(3) # offset 88
evstdd 23,96(3) # offset 96
evstdd 24,104(3) # offset 104
evstdd 25,112(3) # offset 112
evstdd 26,120(3) # offset 120
evstdd 27,128(3) # offset 128
evstdd 28,136(3) # offset 136
evstdd 29,144(3) # offset 144
evstdd 30,152(3) # offset 152
evstdd 31,160(3) # offset 160
/* Add 164 to r3 to account for the amount of data we just
stored. Note that we are not adding 168 because the next
store instruction uses an offset of 4. */
addi 3,3,164
#else
stw 1,0(3) # offset 0
stwu 2,4(3) # offset 4
stwu 13,4(3) # offset 8
@ -33,12 +62,22 @@ FUNC_START(setjmp)
stwu 29,4(3) # offset 72
stwu 30,4(3) # offset 76
stwu 31,4(3) # offset 80
#endif
/* From this point on until the end of this function, add 84
to the offset shown if __SPE__. This difference comes from
the fact that we save 21 64-bit registers instead of 21
32-bit registers above. */
mflr 4
stwu 4,4(3) # offset 84
mfcr 4
stwu 4,4(3) # offset 88
# one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
/* Check whether we need to save FPRs. Checking __NO_FPRS__
on its own would be enough for GCC 4.1 and above, but older
compilers only define _SOFT_FLOAT, so check both. */
#if !defined (__NO_FPRS__) && !defined (_SOFT_FLOAT)
stfdu 14,8(3) # offset 96
stfdu 15,8(3) # offset 104
stfdu 16,8(3) # offset 112
@ -106,6 +145,35 @@ FUNC_START(longjmp)
addi 3,3,7 # align to 8 byte boundary
rlwinm 3,3,0,0,28
#endif
#if __SPE__
/* If we are E500, then restore 64-bit registers. */
evldd 1,0(3) # offset 0
evldd 2,8(3) # offset 8
evldd 13,16(3) # offset 16
evldd 14,24(3) # offset 24
evldd 15,32(3) # offset 32
evldd 16,40(3) # offset 40
evldd 17,48(3) # offset 48
evldd 18,56(3) # offset 56
evldd 19,64(3) # offset 64
evldd 20,72(3) # offset 72
evldd 21,80(3) # offset 80
evldd 22,88(3) # offset 88
evldd 23,96(3) # offset 96
evldd 24,104(3) # offset 104
evldd 25,112(3) # offset 112
evldd 26,120(3) # offset 120
evldd 27,128(3) # offset 128
evldd 28,136(3) # offset 136
evldd 29,144(3) # offset 144
evldd 30,152(3) # offset 152
evldd 31,160(3) # offset 160
/* Add 164 to r3 to account for the amount of data we just
loaded. Note that we are not adding 168 because the next
load instruction uses an offset of 4. */
addi 3,3,164
#else
lwz 1,0(3) # offset 0
lwzu 2,4(3) # offset 4
lwzu 13,4(3) # offset 8
@ -127,12 +195,22 @@ FUNC_START(longjmp)
lwzu 29,4(3) # offset 72
lwzu 30,4(3) # offset 76
lwzu 31,4(3) # offset 80
#endif
/* From this point on until the end of this function, add 84
to the offset shown if __SPE__. This difference comes from
the fact that we restore 21 64-bit registers instead of 21
32-bit registers above. */
lwzu 5,4(3) # offset 84
mtlr 5
lwzu 5,4(3) # offset 88
mtcrf 255,5
# one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
/* Check whether we need to restore FPRs. Checking
__NO_FPRS__ on its own would be enough for GCC 4.1 and
above, but older compilers only define _SOFT_FLOAT, so
check both. */
#if !defined (__NO_FPRS__) && !defined (_SOFT_FLOAT)
lfdu 14,8(3) # offset 96
lfdu 15,8(3) # offset 104
lfdu 16,8(3) # offset 112