diff --git a/libffi/ChangeLog b/libffi/ChangeLog index 1bbcf9e47f4a42f383a49ee8d2942d987752fe59..b5905fac96fc126af3f2c6f33e166c0bab88ba45 100644 --- a/libffi/ChangeLog +++ b/libffi/ChangeLog @@ -1,3 +1,9 @@ +2011-08-25 Andrew Haley <aph@redhat.com> + + * src/arm/ffi.c (FFI_INIT_TRAMPOLINE): Remove hard-coded assembly + instructions. + * src/arm/sysv.S (ffi_arm_trampoline): Put them here instead. + 2011-07-11 Andrew Haley <aph@redhat.com> * src/arm/ffi.c (FFI_INIT_TRAMPOLINE): Clear icache. diff --git a/libffi/src/arm/ffi.c b/libffi/src/arm/ffi.c index 4e72c3bcd7a62ee9b4b5f9000b851ae00c529d85..d52603336376831478e3205592a6b8a0a93bdab6 100644 --- a/libffi/src/arm/ffi.c +++ b/libffi/src/arm/ffi.c @@ -337,14 +337,14 @@ ffi_prep_incoming_args_SYSV(char *stack, void **rvalue, /* How to make a trampoline. */ +extern unsigned int ffi_arm_trampoline[3]; + #define FFI_INIT_TRAMPOLINE(TRAMP,FUN,CTX) \ ({ unsigned char *__tramp = (unsigned char*)(TRAMP); \ unsigned int __fun = (unsigned int)(FUN); \ unsigned int __ctx = (unsigned int)(CTX); \ unsigned char *insns = (unsigned char *)(CTX); \ - *(unsigned int*) &__tramp[0] = 0xe92d000f; /* stmfd sp!, {r0-r3} */ \ - *(unsigned int*) &__tramp[4] = 0xe59f0000; /* ldr r0, [pc] */ \ - *(unsigned int*) &__tramp[8] = 0xe59ff000; /* ldr pc, [pc] */ \ + memcpy (__tramp, ffi_arm_trampoline, sizeof ffi_arm_trampoline); \ *(unsigned int*) &__tramp[12] = __ctx; \ *(unsigned int*) &__tramp[16] = __fun; \ __clear_cache((&__tramp[0]), (&__tramp[19])); /* Clear data mapping. */ \ diff --git a/libffi/src/arm/sysv.S b/libffi/src/arm/sysv.S index 72f0ee0ca0cdba2d8d640f64bcfe736c05204f39..be6493a25b1c96a7aabacb27c8e326c3cf79ae46 100644 --- a/libffi/src/arm/sysv.S +++ b/libffi/src/arm/sysv.S @@ -461,6 +461,11 @@ ARM_FUNC_START ffi_closure_VFP UNWIND .fnend .size CNAME(ffi_closure_VFP),.ffi_closure_VFP_end-CNAME(ffi_closure_VFP) +ENTRY(ffi_arm_trampoline) + stmfd sp!, {r0-r3} + ldr r0, [pc] + ldr pc, [pc] + #if defined __ELF__ && defined __linux__ .section .note.GNU-stack,"",%progbits #endif