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(MAX_FUNC_SIZE): New macro.

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(main): Use MAX_FUNC_SIZE instead of open-coding 256 bytes.

(Logical change 1.210)
This commit is contained in:
hp.com!davidm 2004-04-21 23:46:17 +00:00
parent 18617ecf2c
commit c9a01bf094
1 changed files with 5 additions and 3 deletions
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8
tests/Gtest-dyn1.c
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@ -34,6 +34,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include <sys/mman.h>
#define MAX_FUNC_SIZE 2048 /* max. size of cloned function */
#define panic(args...) \
{ fprintf (stderr, args); exit (-1); }
@ -145,17 +147,17 @@ main (int argc, char *argv[])
if (verbose)
printf ("old code @ %p, new code @ %p\n", (void *) fdesc.code, mem);
memcpy (mem, (void *) fdesc.code, 256);
memcpy (mem, (void *) fdesc.code, MAX_FUNC_SIZE);
mprotect ((void *) ((long) mem & ~(getpagesize () - 1)),
2*getpagesize(), PROT_READ | PROT_WRITE | PROT_EXEC);
flush_cache (mem, 256);
flush_cache (mem, MAX_FUNC_SIZE);
signal (SIGSEGV, sighandler);
/* register the new function: */
region = alloca (_U_dyn_region_info_size (2));
region->next = NULL;
region->insn_count = 256;
region->insn_count = 3 * (MAX_FUNC_SIZE / 16);
region->op_count = 2;
_U_dyn_op_alias (&region->op[0], 0, -1, fdesc.code);
_U_dyn_op_stop (&region->op[1]);