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Add cache flushing routine for sun compiler on sparc solaris 2.8

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This commit is contained in:
Anthony Green
2013-02-07 18:00:36 -05:00
parent ed6ae9501b
commit fd07c9e404
5 changed files with 51 additions and 6 deletions
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src/sparc/ffi.c
+14 -2
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@@ -1,5 +1,5 @@
/* -----------------------------------------------------------------------
ffi.c - Copyright (c) 2011 Anthony Green
ffi.c - Copyright (c) 2011, 2013 Anthony Green
Copyright (c) 1996, 2003-2004, 2007-2008 Red Hat, Inc.
SPARC Foreign Function Interface
@@ -376,6 +376,10 @@ extern int ffi_call_v8(void *, extended_cif *, unsigned,
unsigned, unsigned *, void (*fn)(void));
#endif
#ifndef __GNUC__
void ffi_flush_icache (void *, size_t);
#endif
void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
{
extended_cif ecif;
@@ -417,7 +421,7 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
/* behind "call", so we alloc some executable space for it. */
/* l7 is used, we need to make sure v8.S doesn't use %l7. */
unsigned int *call_struct = NULL;
ffi_closure_alloc(32, &call_struct);
ffi_closure_alloc(32, (void **)&call_struct);
if (call_struct)
{
unsigned long f = (unsigned long)fn;
@@ -432,10 +436,14 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
call_struct[5] = 0x01000000; /* nop */
call_struct[6] = 0x81c7e008; /* ret */
call_struct[7] = 0xbe100017; /* mov %l7, %i7 */
#ifdef __GNUC__
asm volatile ("iflush %0; iflush %0+8; iflush %0+16; iflush %0+24" : :
"r" (call_struct) : "memory");
/* SPARC v8 requires 5 instructions for flush to be visible */
asm volatile ("nop; nop; nop; nop; nop");
#else
ffi_flush_icache (call_struct, 32);
#endif
ffi_call_v8(ffi_prep_args_v8, &ecif, cif->bytes,
cif->flags, rvalue, call_struct);
ffi_closure_free(call_struct);
@@ -516,9 +524,13 @@ ffi_prep_closure_loc (ffi_closure* closure,
#ifdef SPARC64
asm volatile ("flush %0; flush %0+8" : : "r" (closure) : "memory");
#else
#ifdef __GNUC__
asm volatile ("iflush %0; iflush %0+8" : : "r" (closure) : "memory");
/* SPARC v8 requires 5 instructions for flush to be visible */
asm volatile ("nop; nop; nop; nop; nop");
#else
ffi_flush_icache (closure, 16);
#endif
#endif
return FFI_OK;