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Fix code generation buffer overflow reported by TeLeMan

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3805 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2007-12-11 19:35:45 +00:00
parent 52df269ca8
commit d07bde88a5
4 changed files with 20 additions and 7 deletions
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17
translate-all.c
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@ -132,14 +132,27 @@ static void dyngen_labels(long *gen_labels, int nb_gen_labels,
}
}
unsigned long code_gen_max_block_size(void)
{
static unsigned long max;
if (max == 0) {
#define DEF(s, n, copy_size) max = copy_size > max? copy_size : max;
#include "opc.h"
#undef DEF
max *= OPC_MAX_SIZE;
}
return max;
}
/* return non zero if the very first instruction is invalid so that
the virtual CPU can trigger an exception.
'*gen_code_size_ptr' contains the size of the generated code (host
code).
*/
int cpu_gen_code(CPUState *env, TranslationBlock *tb,
int max_code_size, int *gen_code_size_ptr)
int cpu_gen_code(CPUState *env, TranslationBlock *tb, int *gen_code_size_ptr)
{
uint8_t *gen_code_buf;
int gen_code_size;