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80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
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TEST_HEADER
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id = $Id$
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summary = LO pool asserts on exact out-of-bounds reference
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language = c
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link = myfmt.o testlib.o
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OUTPUT_SPEC
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assert = true
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assertfile P= poollo.c
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assertcond = ss->rank == RankAMBIG
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END_HEADER
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*/
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#include "testlib.h"
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#include "mpscams.h"
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#include "mpsclo.h"
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#include "myfmt.h"
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static void test(void)
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{
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void *marker = ▮
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mps_arena_t arena;
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mps_pool_t pool_ams, pool_lo;
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mps_thr_t thread;
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mps_root_t root;
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mps_fmt_t fmt;
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mps_ap_t ap_ams, ap_lo;
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mps_addr_t p, q, out_of_bounds;
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size_t header = sizeof(mycell);
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cdie(mps_arena_create_k(&arena, mps_arena_class_vm(), mps_args_none), "create arena");
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mps_arena_park(arena);
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cdie(mps_thread_reg(&thread, arena), "register thread");
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cdie(mps_root_create_thread(&root, arena, thread, marker), "create root");
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MPS_ARGS_BEGIN(args) {
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MPS_ARGS_ADD(args, MPS_KEY_FMT_HEADER_SIZE, header);
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fmtargs(args + 1);
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cdie(mps_fmt_create_k(&fmt, arena, args), "lo format");
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} MPS_ARGS_END(args);
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MPS_ARGS_BEGIN(args) {
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MPS_ARGS_ADD(args, MPS_KEY_FORMAT, fmt);
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cdie(mps_pool_create_k(&pool_ams, arena, mps_class_ams(), args), "ams pool");
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} MPS_ARGS_END(args);
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MPS_ARGS_BEGIN(args) {
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MPS_ARGS_ADD(args, MPS_KEY_FORMAT, fmt);
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cdie(mps_pool_create_k(&pool_lo, arena, mps_class_lo(), args), "lo pool");
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} MPS_ARGS_END(args);
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cdie(mps_ap_create(&ap_ams, pool_ams, mps_rank_exact()), "ams ap");
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cdie(mps_ap_create_k(&ap_lo, pool_lo, mps_args_none), "lo ap");
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/* p is in the LO pool */
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p = allocheader(ap_lo, 0, NULL, NULL, sizeof(mycell), header);
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/* Destroy the LO allocation point so that p's segment gets unbuffered. */
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mps_ap_destroy(ap_lo);
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/* q is in the AMS pool with exact reference to p and out-of-bounds object */
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out_of_bounds = (void *)((char*)p - header);
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q = allocheader(ap_ams, 1, p, out_of_bounds, sizeof(mycell), header);
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mps_arena_start_collect(arena);
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mps_arena_park(arena);
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/* Keep q (and thus p) alive during the collection. */
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report("q", "%p", q);
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mps_ap_destroy(ap_ams);
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mps_pool_destroy(pool_lo);
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mps_pool_destroy(pool_ams);
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mps_fmt_destroy(fmt);
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mps_root_destroy(root);
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mps_thread_dereg(thread);
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mps_arena_destroy(arena);
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}
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int main(void)
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{
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easy_tramp(test);
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return 0;
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}
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