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-rw-r--r--recipes/mozilla/fennec/libffi-arm-softfloat.patch290
1 files changed, 290 insertions, 0 deletions
diff --git a/recipes/mozilla/fennec/libffi-arm-softfloat.patch b/recipes/mozilla/fennec/libffi-arm-softfloat.patch
new file mode 100644
index 0000000000..b9f70cd3bf
--- /dev/null
+++ b/recipes/mozilla/fennec/libffi-arm-softfloat.patch
@@ -0,0 +1,290 @@
+This is a backport from upstream libffi so get it working on
+ARM with and without VFP
+
+-Khem
+
+Index: mozilla-central/js/src/ctypes/libffi/src/arm/sysv.S
+===================================================================
+--- mozilla-central.orig/js/src/ctypes/libffi/src/arm/sysv.S
++++ mozilla-central/js/src/ctypes/libffi/src/arm/sysv.S
+@@ -1,5 +1,6 @@
+ /* -----------------------------------------------------------------------
+- sysv.S - Copyright (c) 1998, 2008 Red Hat, Inc.
++ sysv.S - Copyright (c) 1998, 2008, 2011 Red Hat, Inc.
++ Copyright (c) 2011 Plausible Labs Cooperative, Inc.
+
+ ARM Foreign Function Interface
+
+@@ -39,7 +40,11 @@
+ #else
+ #define CNAME(x) x
+ #endif
++#ifdef __APPLE__
++#define ENTRY(x) .globl CNAME(x); CNAME(x):
++#else
+ #define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x):
++#endif /* __APPLE__ */
+ #endif
+
+ #ifdef __ELF__
+@@ -48,6 +53,12 @@
+ #define LSYM(x) x
+ #endif
+
++/* Use the SOFTFP return value ABI on Mac OS X, as per the iOS ABI
++ Function Call Guide */
++#ifdef __APPLE__
++#define __SOFTFP__
++#endif
++
+ /* We need a better way of testing for this, but for now, this is all
+ we can do. */
+ @ This selects the minimum architecture level required.
+@@ -105,21 +116,33 @@
+ .align 0
+ .thumb
+ .thumb_func
++#ifdef __APPLE__
++ ENTRY($0)
++#else
+ ENTRY(\name)
++#endif
+ bx pc
+ nop
+ .arm
+ UNWIND .fnstart
+ /* A hook to tell gdb that we've switched to ARM mode. Also used to call
+ directly from other local arm routines. */
+-_L__\name:
++#ifdef __APPLE__
++_L__$0:
++#else
++_L__\name:
++#endif
+ .endm
+ #else
+ .macro ARM_FUNC_START name
+ .text
+ .align 0
+ .arm
++#ifdef __APPLE__
++ ENTRY($0)
++#else
+ ENTRY(\name)
++#endif
+ UNWIND .fnstart
+ .endm
+ #endif
+@@ -141,8 +164,7 @@ _L__\name:
+ #endif
+ .endm
+
+-
+- @ r0: fn
++ @ r0: ffi_prep_args
+ @ r1: &ecif
+ @ r2: cif->bytes
+ @ r3: fig->flags
+@@ -222,12 +244,98 @@ ARM_FUNC_START ffi_call_SYSV
+ #endif
+
+ LSYM(Lepilogue):
+- RETLDM "r0-r3,fp"
++#if defined (__INTERWORKING__)
++ ldmia sp!, {r0-r3,fp, lr}
++ bx lr
++#else
++ ldmia sp!, {r0-r3,fp, pc}
++#endif
+
+ .ffi_call_SYSV_end:
+ UNWIND .fnend
++#ifdef __ELF__
+ .size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV)
++#endif
++
++
++/*
++ unsigned int FFI_HIDDEN
++ ffi_closure_SYSV_inner (closure, respp, args)
++ ffi_closure *closure;
++ void **respp;
++ void *args;
++*/
++
++ARM_FUNC_START ffi_closure_SYSV
++ UNWIND .pad #16
++ add ip, sp, #16
++ stmfd sp!, {ip, lr}
++ UNWIND .save {r0, lr}
++ add r2, sp, #8
++ UNWIND .pad #16
++ sub sp, sp, #16
++ str sp, [sp, #8]
++ add r1, sp, #8
++ bl CNAME(ffi_closure_SYSV_inner)
++ cmp r0, #FFI_TYPE_INT
++ beq .Lretint
++
++ cmp r0, #FFI_TYPE_FLOAT
++#if defined(__SOFTFP__) || defined(__ARM_EABI__)
++ beq .Lretint
++#else
++ beq .Lretfloat
++#endif
++
++ cmp r0, #FFI_TYPE_DOUBLE
++#if defined(__SOFTFP__) || defined(__ARM_EABI__)
++ beq .Lretlonglong
++#else
++ beq .Lretdouble
++#endif
++
++ cmp r0, #FFI_TYPE_LONGDOUBLE
++#if defined(__SOFTFP__) || defined(__ARM_EABI__)
++ beq .Lretlonglong
++#else
++ beq .Lretlongdouble
++#endif
++
++ cmp r0, #FFI_TYPE_SINT64
++ beq .Lretlonglong
++.Lclosure_epilogue:
++ add sp, sp, #16
++ ldmfd sp, {sp, pc}
++.Lretint:
++ ldr r0, [sp]
++ b .Lclosure_epilogue
++.Lretlonglong:
++ ldr r0, [sp]
++ ldr r1, [sp, #4]
++ b .Lclosure_epilogue
+
++#if !defined(__SOFTFP__) && !defined(__ARM_EABI__)
++.Lretfloat:
++ ldfs f0, [sp]
++ b .Lclosure_epilogue
++.Lretdouble:
++ ldfd f0, [sp]
++ b .Lclosure_epilogue
++.Lretlongdouble:
++ ldfd f0, [sp]
++ b .Lclosure_epilogue
++#endif
++
++.ffi_closure_SYSV_end:
++ UNWIND .fnend
++#ifdef __ELF__
++ .size CNAME(ffi_closure_SYSV),.ffi_closure_SYSV_end-CNAME(ffi_closure_SYSV)
++#endif
++
++
++/* Below are VFP hard-float ABI call and closure implementations.
++ Add VFP FPU directive here. */
++ .fpu vfp
+
+ @ r0: fn
+ @ r1: &ecif
+@@ -294,7 +402,7 @@ LSYM(Lbase_args):
+ @ assume no return value.
+ cmp r2, #0
+ beq LSYM(Lepilogue_vfp)
+-
++
+ cmp r3, #FFI_TYPE_INT
+ streq r0, [r2]
+ beq LSYM(Lepilogue_vfp)
+@@ -321,79 +429,6 @@ LSYM(Lepilogue_vfp):
+ .ffi_call_VFP_end:
+ UNWIND .fnend
+ .size CNAME(ffi_call_VFP),.ffi_call_VFP_end-CNAME(ffi_call_VFP)
+-
+-
+-/*
+- unsigned int FFI_HIDDEN
+- ffi_closure_SYSV_inner (closure, respp, args)
+- ffi_closure *closure;
+- void **respp;
+- void *args;
+-*/
+-
+-ARM_FUNC_START ffi_closure_SYSV
+- UNWIND .pad #16
+- add ip, sp, #16
+- stmfd sp!, {ip, lr}
+- UNWIND .save {r0, lr}
+- add r2, sp, #8
+- .pad #16
+- sub sp, sp, #16
+- str sp, [sp, #8]
+- add r1, sp, #8
+- bl ffi_closure_SYSV_inner
+- cmp r0, #FFI_TYPE_INT
+- beq .Lretint
+-
+- cmp r0, #FFI_TYPE_FLOAT
+-#if defined(__SOFTFP__) || defined(__ARM_EABI__)
+- beq .Lretint
+-#else
+- beq .Lretfloat
+-#endif
+-
+- cmp r0, #FFI_TYPE_DOUBLE
+-#if defined(__SOFTFP__) || defined(__ARM_EABI__)
+- beq .Lretlonglong
+-#else
+- beq .Lretdouble
+-#endif
+-
+- cmp r0, #FFI_TYPE_LONGDOUBLE
+-#if defined(__SOFTFP__) || defined(__ARM_EABI__)
+- beq .Lretlonglong
+-#else
+- beq .Lretlongdouble
+-#endif
+-
+- cmp r0, #FFI_TYPE_SINT64
+- beq .Lretlonglong
+-.Lclosure_epilogue:
+- add sp, sp, #16
+- ldmfd sp, {sp, pc}
+-.Lretint:
+- ldr r0, [sp]
+- b .Lclosure_epilogue
+-.Lretlonglong:
+- ldr r0, [sp]
+- ldr r1, [sp, #4]
+- b .Lclosure_epilogue
+-
+-#if !defined(__SOFTFP__) && !defined(__ARM_EABI__)
+-.Lretfloat:
+- ldfs f0, [sp]
+- b .Lclosure_epilogue
+-.Lretdouble:
+- ldfd f0, [sp]
+- b .Lclosure_epilogue
+-.Lretlongdouble:
+- ldfd f0, [sp]
+- b .Lclosure_epilogue
+-#endif
+-
+-.ffi_closure_SYSV_end:
+- UNWIND .fnend
+- .size CNAME(ffi_closure_SYSV),.ffi_closure_SYSV_end-CNAME(ffi_closure_SYSV)
+
+
+ ARM_FUNC_START ffi_closure_VFP
+@@ -405,7 +440,7 @@ ARM_FUNC_START ffi_closure_VFP
+ UNWIND .save {r0, lr}
+ add r2, sp, #72
+ add r3, sp, #8
+- .pad #72
++ UNWIND .pad #72
+ sub sp, sp, #72
+ str sp, [sp, #64]
+ add r1, sp, #64
+@@ -460,3 +495,4 @@ ARM_FUNC_START ffi_closure_VFP
+ #if defined __ELF__ && defined __linux__
+ .section .note.GNU-stack,"",%progbits
+ #endif
++
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