From fbb4841606b555311048229cf26de22ea5cf0682 Mon Sep 17 00:00:00 2001 From: Thomas Preud'homme Date: Thu, 28 Feb 2013 16:55:10 +0100 Subject: Add __clear_cache implementation in libtcc1 Add __clear_cache function for flushing caches to libtcc1. --- lib/libtcc1.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) (limited to 'lib/libtcc1.c') diff --git a/lib/libtcc1.c b/lib/libtcc1.c index a717701..3103691 100644 --- a/lib/libtcc1.c +++ b/lib/libtcc1.c @@ -107,7 +107,7 @@ union float_long { }; /* XXX: we don't support several builtin supports for now */ -#ifndef __x86_64__ +#if !defined(__x86_64__) && !defined(__arm__) /* XXX: use gcc/tcc intrinsic ? */ #if defined(__i386__) @@ -713,6 +713,28 @@ void __clear_cache(char *beginning, char *end) { } +#elif defined(__arm__) + +#define _GNU_SOURCE +#include +#include + +void __clear_cache(char *beginning, char *end) +{ +/* __ARM_NR_cacheflush is kernel private and should not be used in user space. + * However, there is no ARM asm parser in tcc so we use it for now */ +#if 1 + syscall(__ARM_NR_cacheflush); +#else + __asm__ ("push {r7}\n\t" + "mov r7, #0xf0002\n\t" + "mov r2, #0\n\t" + "swi 0\n\t" + "pop {r7}\n\t" + "ret"); +#endif +} + #else #warning __clear_cache not defined for this architecture, avoid using tcc -run #endif -- cgit v1.3.1