mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-07-08 20:28:30 +00:00
Make some systemic improvements
- add vdso dump utility - tests now log stack usage - rename g_ftrace to __ftrace - make internal spinlocks go faster - add conformant c11 atomics library - function tracing now logs stack usage - make function call tracing thread safe - add -X unsecure (no ssl) mode to redbean - munmap() has more consistent behavior now - pacify fsync() calls on python unit tests - make --strace flag work better in redbean - start minimizing and documenting compiler flags
This commit is contained in:
Justine Tunney
parent
c6bbca55e9
commit
9208c83f7a
141 changed files with 1948 additions and 1411 deletions
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@ -128,7 +128,7 @@ struct AsanSourceLocation {
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};
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struct AsanAccessInfo {
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const uintptr_t addr;
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const char *addr;
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const uintptr_t first_bad_addr;
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size_t size;
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bool iswrite;
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@ -136,7 +136,7 @@ struct AsanAccessInfo {
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};
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struct AsanGlobal {
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const uintptr_t addr;
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const char *addr;
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size_t size;
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size_t size_with_redzone;
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const void *name;
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@ -339,10 +339,10 @@ dontdiscard static __asan_die_f *__asan_die(void) {
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}
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}
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void __asan_poison(long p, long n, signed char t) {
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void __asan_poison(void *p, long n, signed char t) {
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signed char k, *s;
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s = (signed char *)((p >> 3) + 0x7fff8000);
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if ((k = p & 7)) {
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s = (signed char *)(((intptr_t)p >> 3) + 0x7fff8000);
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if ((k = (intptr_t)p & 7)) {
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if ((!*s && n >= 8 - k) || *s > k) *s = k;
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n -= MIN(8 - k, n);
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s += 1;
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@ -354,10 +354,10 @@ void __asan_poison(long p, long n, signed char t) {
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}
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}
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void __asan_unpoison(long p, long n) {
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void __asan_unpoison(void *p, long n) {
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signed char k, *s;
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k = p & 7;
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s = (signed char *)((p >> 3) + 0x7fff8000);
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k = (intptr_t)p & 7;
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s = (signed char *)(((intptr_t)p >> 3) + 0x7fff8000);
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if (UNLIKELY(k)) {
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if (k + n < 8) {
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if (n > 0) *s = MAX(*s, k + n);
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@ -737,9 +737,9 @@ dontdiscard static __asan_die_f *__asan_report(const void *addr, int size,
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uint64_t x, y, z;
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char *p, *q, *base;
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struct MemoryIntervals *m;
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++g_ftrace;
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--__ftrace;
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p = __fatalbuf;
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kprintf("\n\e[J\e[1;31masan error\e[0m: %s %d-byte %s at %p shadow %p\n%s\n",
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kprintf("\n\e[J\e[1;31masan error\e[0m: %s %d-byte %s at %p shadow %p\n",
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__asan_describe_access_poison(kind), size, message, addr,
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SHADOW(addr), __argv[0]);
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if (0 < size && size < 80) {
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@ -759,19 +759,19 @@ dontdiscard static __asan_die_f *__asan_report(const void *addr, int size,
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for (c = i = 0; i < 80; ++i) {
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if (!(t = __asan_check(base + i, 1).kind)) {
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if (c != 32) {
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p = __stpcpy(p, "\e[32m");
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*p++ = '\e', *p++ = '[', *p++ = '3', *p++ = '2', *p++ = 'm';
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c = 32;
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}
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*p++ = '.';
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} else {
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if (c != 31) {
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p = __stpcpy(p, "\e[31m");
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*p++ = '\e', *p++ = '[', *p++ = '3', *p++ = '1', *p++ = 'm';
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c = 31;
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}
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p = __asan_utf8cpy(p, __asan_symbolize_access_poison(t));
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}
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}
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p = __stpcpy(p, "\e[39m");
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*p++ = '\e', *p++ = '[', *p++ = '3', *p++ = '9', *p++ = 'm';
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*p++ = '\n';
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for (i = 0; (intptr_t)(base + i) & 7; ++i) *p++ = ' ';
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for (; i + 8 <= 80; i += 8) {
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@ -814,7 +814,7 @@ dontdiscard static __asan_die_f *__asan_report(const void *addr, int size,
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kprintf("%s", __fatalbuf);
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__asan_report_memory_origin(addr, size, kind);
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kprintf("\nthe crash was caused by\n");
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--g_ftrace;
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++__ftrace;
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return __asan_die();
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}
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@ -840,7 +840,7 @@ dontdiscard __asan_die_f *__asan_report_memory_fault(void *addr, int size,
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void *__asan_morgue_add(void *p) {
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int i;
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void *r;
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_spinlock_optimistic(&__asan_lock);
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_spinlock_cooperative(&__asan_lock);
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i = __asan_morgue.i++ & (ARRAYLEN(__asan_morgue.p) - 1);
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r = __asan_morgue.p[i];
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__asan_morgue.p[i] = p;
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@ -851,7 +851,7 @@ void *__asan_morgue_add(void *p) {
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static void __asan_morgue_flush(void) {
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int i;
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void *p;
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_spinlock_optimistic(&__asan_lock);
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_spinlock_cooperative(&__asan_lock);
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for (i = 0; i < ARRAYLEN(__asan_morgue.p); ++i) {
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if (weaken(dlfree)) {
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weaken(dlfree)(__asan_morgue.p[i]);
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@ -943,9 +943,9 @@ static void *__asan_allocate(size_t a, size_t n, int underrun, int overrun,
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if ((p = weaken(dlmemalign)(a, __asan_heap_size(n)))) {
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c = weaken(dlmalloc_usable_size)(p);
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e = (struct AsanExtra *)(p + c - sizeof(*e));
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__asan_unpoison((uintptr_t)p, n);
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__asan_poison((uintptr_t)p - 16, 16, underrun); /* see dlmalloc design */
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__asan_poison((uintptr_t)p + n, c - n, overrun);
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__asan_unpoison(p, n);
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__asan_poison(p - 16, 16, underrun); /* see dlmalloc design */
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__asan_poison(p + n, c - n, overrun);
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__asan_memset(p, 0xF9, n);
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__asan_write48(&e->size, n);
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__asan_memcpy(&e->bt, bt, sizeof(*bt));
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@ -1030,7 +1030,7 @@ static void __asan_deallocate(char *p, long kind) {
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struct AsanExtra *e;
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if ((e = __asan_get_extra(p, &c))) {
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if (__asan_read48(e->size, &n)) {
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__asan_poison((uintptr_t)p, c, kind);
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__asan_poison(p, c, kind);
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if (c <= ASAN_MORGUE_THRESHOLD) {
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p = __asan_morgue_add(p);
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}
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@ -1084,11 +1084,11 @@ static void *__asan_realloc_impl(void *p, size_t n,
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if ((e = __asan_get_extra(p, &c))) {
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if (__asan_read48(e->size, &m)) {
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if (n <= m) { /* shrink */
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__asan_poison((uintptr_t)p + n, m - n, kAsanHeapOverrun);
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__asan_poison((char *)p + n, m - n, kAsanHeapOverrun);
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__asan_write48(&e->size, n);
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return p;
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} else if (n <= c - sizeof(struct AsanExtra)) { /* small growth */
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__asan_unpoison((uintptr_t)p + m, n - m);
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__asan_unpoison((char *)p + m, n - m);
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__asan_write48(&e->size, n);
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return p;
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} else { /* exponential growth */
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@ -1175,13 +1175,12 @@ void __asan_handle_no_return(void) {
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void __asan_register_globals(struct AsanGlobal g[], int n) {
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int i;
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__asan_poison((intptr_t)g, sizeof(*g) * n, kAsanProtected);
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__asan_poison(g, sizeof(*g) * n, kAsanProtected);
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for (i = 0; i < n; ++i) {
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__asan_poison(g[i].addr + g[i].size, g[i].size_with_redzone - g[i].size,
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kAsanGlobalRedzone);
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if (g[i].location) {
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__asan_poison((intptr_t)g[i].location, sizeof(*g[i].location),
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kAsanProtected);
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__asan_poison(g[i].location, sizeof(*g[i].location), kAsanProtected);
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}
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}
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}
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@ -1228,15 +1227,15 @@ void __asan_report_store(uint8_t *addr, int size) {
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}
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}
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void __asan_poison_stack_memory(uintptr_t addr, size_t size) {
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void __asan_poison_stack_memory(char *addr, size_t size) {
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__asan_poison(addr, size, kAsanStackFree);
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}
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void __asan_unpoison_stack_memory(uintptr_t addr, size_t size) {
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void __asan_unpoison_stack_memory(char *addr, size_t size) {
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__asan_unpoison(addr, size);
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}
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void __asan_alloca_poison(uintptr_t addr, uintptr_t size) {
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void __asan_alloca_poison(char *addr, uintptr_t size) {
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__asan_poison(addr - 32, 32, kAsanAllocaUnderrun);
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__asan_poison(addr + size, 32, kAsanAllocaOverrun);
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}
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@ -1255,8 +1254,8 @@ void *__asan_get_current_fake_stack(void) {
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return 0;
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}
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void __sanitizer_annotate_contiguous_container(long beg, long end, long old_mid,
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long new_mid) {
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void __sanitizer_annotate_contiguous_container(char *beg, char *end,
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char *old_mid, char *new_mid) {
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// the c++ stl uses this
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// TODO(jart): make me faster
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__asan_unpoison(beg, new_mid - beg);
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@ -1317,11 +1316,11 @@ void __asan_map_shadow(uintptr_t p, size_t n) {
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__repstosb((void *)(intptr_t)((int64_t)((uint64_t)a << 32) >> 16),
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kAsanUnmapped, size);
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}
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__asan_unpoison((uintptr_t)p, n);
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__asan_unpoison((char *)p, n);
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}
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static textstartup void __asan_shadow_string(char *s) {
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__asan_map_shadow((uintptr_t)s, __strlen(s) + 1);
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__asan_map_shadow((intptr_t)s, __strlen(s) + 1);
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}
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static textstartup void __asan_shadow_auxv(intptr_t *auxv) {
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@ -1359,7 +1358,7 @@ static textstartup void __asan_shadow_mapping(struct MemoryIntervals *m,
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static textstartup void __asan_shadow_existing_mappings(void) {
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__asan_shadow_mapping(&_mmi, 0);
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__asan_map_shadow(GetStackAddr(0), GetStackSize());
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__asan_map_shadow((intptr_t)GetStackAddr(0), GetStackSize());
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__asan_poison(GetStackAddr(0), PAGESIZE, kAsanStackOverflow);
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}
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