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libffi: fix MIPS softfloat build issue with current binutils

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
This commit is contained in:
Felix Fietkau 2016-01-20 13:23:47 +01:00
parent 122c477f19
commit 3a7a4bf179
1 changed files with 79 additions and 0 deletions
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79
libs/libffi/patches/100-fix_mips_softfloat.patch Normal file
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@ -0,0 +1,79 @@
--- a/src/mips/o32.S
+++ b/src/mips/o32.S
@@ -82,13 +82,16 @@ sixteen:
ADDU $sp, 4 * FFI_SIZEOF_ARG # adjust $sp to new args
+#ifndef __mips_soft_float
bnez t0, pass_d # make it quick for int
+#endif
REG_L a0, 0*FFI_SIZEOF_ARG($sp) # just go ahead and load the
REG_L a1, 1*FFI_SIZEOF_ARG($sp) # four regs.
REG_L a2, 2*FFI_SIZEOF_ARG($sp)
REG_L a3, 3*FFI_SIZEOF_ARG($sp)
b call_it
+#ifndef __mips_soft_float
pass_d:
bne t0, FFI_ARGS_D, pass_f
l.d $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
@@ -130,6 +133,7 @@ pass_f_d:
# bne t0, FFI_ARGS_F_D, call_it
l.s $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
l.d $f14, 2*FFI_SIZEOF_ARG($sp) # passing double and float
+#endif
call_it:
# Load the function pointer
@@ -158,14 +162,23 @@ retfloat:
bne t2, FFI_TYPE_FLOAT, retdouble
jalr t9
REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+#ifndef __mips_soft_float
s.s $f0, 0(t0)
+#else
+ REG_S v0, 0(t0)
+#endif
b epilogue
retdouble:
bne t2, FFI_TYPE_DOUBLE, noretval
jalr t9
REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+#ifndef __mips_soft_float
s.d $f0, 0(t0)
+#else
+ REG_S v1, 4(t0)
+ REG_S v0, 0(t0)
+#endif
b epilogue
noretval:
@@ -261,9 +274,11 @@ $LCFI7:
li $13, 1 # FFI_O32
bne $16, $13, 1f # Skip fp save if FFI_O32_SOFT_FLOAT
+#ifndef __mips_soft_float
# Store all possible float/double registers.
s.d $f12, FA_0_0_OFF2($fp)
s.d $f14, FA_1_0_OFF2($fp)
+#endif
1:
# Call ffi_closure_mips_inner_O32 to do the work.
la t9, ffi_closure_mips_inner_O32
@@ -281,6 +296,7 @@ $LCFI7:
li $13, 1 # FFI_O32
bne $16, $13, 1f # Skip fp restore if FFI_O32_SOFT_FLOAT
+#ifndef __mips_soft_float
li $9, FFI_TYPE_FLOAT
l.s $f0, V0_OFF2($fp)
beq $8, $9, closure_done
@@ -288,6 +304,7 @@ $LCFI7:
li $9, FFI_TYPE_DOUBLE
l.d $f0, V0_OFF2($fp)
beq $8, $9, closure_done
+#endif
1:
REG_L $3, V1_OFF2($fp)
REG_L $2, V0_OFF2($fp)