X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fmm%2Fboehm-gc%2Fptr_chck.c;h=6b72ee2fa79640b45f6162e49e384049d7be9202;hb=c83bff94e40ee0a218a39931af17814d1a42cb5c;hp=dd0529c359629abfef0bbbcfa91ae175b470b68c;hpb=7659949229c634784f7d27aa8b679fdd4c8351ab;p=cacao.git diff --git a/src/mm/boehm-gc/ptr_chck.c b/src/mm/boehm-gc/ptr_chck.c index dd0529c35..6b72ee2fa 100644 --- a/src/mm/boehm-gc/ptr_chck.c +++ b/src/mm/boehm-gc/ptr_chck.c @@ -16,17 +16,15 @@ * preprocessor to validate C pointer arithmetic. */ -#include "config.h" - #include "private/gc_pmark.h" -void GC_default_same_obj_print_proc(void * p, void * q) +STATIC void GC_CALLBACK GC_default_same_obj_print_proc(void * p, void * q) { GC_err_printf("%p and %p are not in the same object\n", p, q); ABORT("GC_same_obj test failed"); } -void (*GC_same_obj_print_proc) (void *, void *) +void (GC_CALLBACK *GC_same_obj_print_proc) (void *, void *) = GC_default_same_obj_print_proc; /* Check that p and q point to the same object. Call */ @@ -38,7 +36,7 @@ void (*GC_same_obj_print_proc) (void *, void *) /* We assume this is performance critical. (It shouldn't */ /* be called by production code, but this can easily make */ /* debugging intolerably slow.) */ -void * GC_same_obj(void *p, void *q) +GC_API void * GC_CALL GC_same_obj(void *p, void *q) { struct hblk *h; hdr *hhdr; @@ -101,13 +99,13 @@ fail: return(p); } -void GC_default_is_valid_displacement_print_proc (void *p) +STATIC void GC_CALLBACK GC_default_is_valid_displacement_print_proc (void *p) { GC_err_printf("%p does not point to valid object displacement\n", p); ABORT("GC_is_valid_displacement test failed"); } -void (*GC_is_valid_displacement_print_proc)(void *) = +void (GC_CALLBACK *GC_is_valid_displacement_print_proc)(void *) = GC_default_is_valid_displacement_print_proc; /* Check that if p is a pointer to a heap page, then it points to */ @@ -116,7 +114,7 @@ void (*GC_is_valid_displacement_print_proc)(void *) = /* Always returns its argument. */ /* Note that we don't lock, since nothing relevant about the header */ /* should change while we have a valid object pointer to the block. */ -void * GC_is_valid_displacement(void *p) +GC_API void * GC_CALL GC_is_valid_displacement(void *p) { hdr *hhdr; word pdispl; @@ -151,20 +149,19 @@ fail: return(p); } -void GC_default_is_visible_print_proc(void * p) +STATIC void GC_CALLBACK GC_default_is_visible_print_proc(void * p) { GC_err_printf("%p is not a GC visible pointer location\n", p); ABORT("GC_is_visible test failed"); } -void (*GC_is_visible_print_proc)(void * p) = GC_default_is_visible_print_proc; +void (GC_CALLBACK *GC_is_visible_print_proc)(void * p) = + GC_default_is_visible_print_proc; +#ifndef THREADS /* Could p be a stack address? */ -GC_bool GC_on_stack(ptr_t p) -{ -# ifdef THREADS - return(TRUE); -# else + STATIC GC_bool GC_on_stack(ptr_t p) + { int dummy; # ifdef STACK_GROWS_DOWN if ((ptr_t)p >= (ptr_t)(&dummy) && (ptr_t)p < GC_stackbottom ) { @@ -176,8 +173,8 @@ GC_bool GC_on_stack(ptr_t p) } # endif return(FALSE); -# endif -} + } +#endif /* Check that p is visible */ /* to the collector as a possibly pointer containing location. */ @@ -187,7 +184,7 @@ GC_bool GC_on_stack(ptr_t p) /* untyped allocations. The idea is that it should be possible, though */ /* slow, to add such a call to all indirect pointer stores.) */ /* Currently useless for multithreaded worlds. */ -void * GC_is_visible(void *p) +GC_API void * GC_CALL GC_is_visible(void *p) { hdr *hhdr; @@ -206,15 +203,13 @@ void * GC_is_visible(void *p) if (GC_on_stack(p)) return(p); hhdr = HDR((word)p); if (hhdr == 0) { - GC_bool result; - if (GC_is_static_root(p)) return(p); /* Else do it again correctly: */ # if (defined(DYNAMIC_LOADING) || defined(MSWIN32) || \ defined(MSWINCE) || defined(PCR)) GC_register_dynamic_libraries(); - result = GC_is_static_root(p); - if (result) return(p); + if (GC_is_static_root(p)) + return(p); # endif goto fail; } else { @@ -234,7 +229,7 @@ void * GC_is_visible(void *p) if ((ptr_t)p - (ptr_t)base >= WORDS_TO_BYTES(BITMAP_BITS) || ((word)p & (sizeof(word) - 1))) goto fail; - if (!((1 << (WORDSZ - ((ptr_t)p - (ptr_t)base) - 1)) + if (!(((word)1 << (WORDSZ - ((ptr_t)p - (ptr_t)base) - 1)) & descr)) goto fail; break; case GC_DS_PROC: @@ -261,10 +256,10 @@ fail: } -void * GC_pre_incr (void **p, size_t how_much) +GC_API void * GC_CALL GC_pre_incr (void **p, ptrdiff_t how_much) { void * initial = *p; - void * result = GC_same_obj((void *)((word)initial + how_much), initial); + void * result = GC_same_obj((void *)((ptr_t)initial + how_much), initial); if (!GC_all_interior_pointers) { (void) GC_is_valid_displacement(result); @@ -272,10 +267,10 @@ void * GC_pre_incr (void **p, size_t how_much) return (*p = result); } -void * GC_post_incr (void **p, size_t how_much) +GC_API void * GC_CALL GC_post_incr (void **p, ptrdiff_t how_much) { void * initial = *p; - void * result = GC_same_obj((void *)((word)initial + how_much), initial); + void * result = GC_same_obj((void *)((ptr_t)initial + how_much), initial); if (!GC_all_interior_pointers) { (void) GC_is_valid_displacement(result);