diff options
Diffstat (limited to 'vendor/modernc.org/libc/mem.go')
-rw-r--r-- | vendor/modernc.org/libc/mem.go | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/vendor/modernc.org/libc/mem.go b/vendor/modernc.org/libc/mem.go deleted file mode 100644 index cf4644edc..000000000 --- a/vendor/modernc.org/libc/mem.go +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright 2021 The Libc Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !libc.membrk && !libc.memgrind && !(linux && (amd64 || arm64 || loong64 || ppc64le || s390x || riscv64 || 386 || arm)) - -package libc // import "modernc.org/libc" - -import ( - "modernc.org/libc/errno" - "modernc.org/libc/sys/types" - "modernc.org/memory" -) - -const memgrind = false - -var ( - allocator memory.Allocator -) - -// void *malloc(size_t size); -func Xmalloc(t *TLS, n types.Size_t) uintptr { - if __ccgo_strace { - trc("t=%v n=%v, (%v:)", t, n, origin(2)) - } - if n == 0 { - return 0 - } - - allocMu.Lock() - - defer allocMu.Unlock() - - p, err := allocator.UintptrMalloc(int(n)) - if err != nil { - t.setErrno(errno.ENOMEM) - return 0 - } - - return p -} - -// void *calloc(size_t nmemb, size_t size); -func Xcalloc(t *TLS, n, size types.Size_t) uintptr { - if __ccgo_strace { - trc("t=%v size=%v, (%v:)", t, size, origin(2)) - } - rq := int(n * size) - if rq == 0 { - return 0 - } - - allocMu.Lock() - - defer allocMu.Unlock() - - p, err := allocator.UintptrCalloc(int(n * size)) - if err != nil { - t.setErrno(errno.ENOMEM) - return 0 - } - - return p -} - -// void *realloc(void *ptr, size_t size); -func Xrealloc(t *TLS, ptr uintptr, size types.Size_t) uintptr { - if __ccgo_strace { - trc("t=%v ptr=%v size=%v, (%v:)", t, ptr, size, origin(2)) - } - allocMu.Lock() - - defer allocMu.Unlock() - - p, err := allocator.UintptrRealloc(ptr, int(size)) - if err != nil { - t.setErrno(errno.ENOMEM) - return 0 - } - - return p -} - -// void free(void *ptr); -func Xfree(t *TLS, p uintptr) { - if __ccgo_strace { - trc("t=%v p=%v, (%v:)", t, p, origin(2)) - } - if p == 0 { - return - } - - allocMu.Lock() - - defer allocMu.Unlock() - - allocator.UintptrFree(p) -} - -func Xmalloc_usable_size(tls *TLS, p uintptr) (r types.Size_t) { - if __ccgo_strace { - trc("tls=%v p=%v, (%v:)", tls, p, origin(2)) - defer func() { trc("-> %v", r) }() - } - if p == 0 { - return 0 - } - - allocMu.Lock() - - defer allocMu.Unlock() - - return types.Size_t(memory.UintptrUsableSize(p)) -} - -func UsableSize(p uintptr) types.Size_t { - allocMu.Lock() - - defer allocMu.Unlock() - - return types.Size_t(memory.UintptrUsableSize(p)) -} - -// MemAuditStart locks the memory allocator, initializes and enables memory -// auditing. Finaly it unlocks the memory allocator. -// -// Some memory handling errors, like double free or freeing of unallocated -// memory, will panic when memory auditing is enabled. -// -// This memory auditing functionality has to be enabled using the libc.memgrind -// build tag. -// -// It is intended only for debug/test builds. It slows down memory allocation -// routines and it has additional memory costs. -func MemAuditStart() {} - -// MemAuditReport locks the memory allocator, reports memory leaks, if any. -// Finally it disables memory auditing and unlocks the memory allocator. -// -// This memory auditing functionality has to be enabled using the libc.memgrind -// build tag. -// -// It is intended only for debug/test builds. It slows down memory allocation -// routines and it has additional memory costs. -func MemAuditReport() error { return nil } |