diff options
Diffstat (limited to 'vendor/modernc.org/libc/mem_musl.go')
-rw-r--r-- | vendor/modernc.org/libc/mem_musl.go | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/vendor/modernc.org/libc/mem_musl.go b/vendor/modernc.org/libc/mem_musl.go deleted file mode 100644 index 1d43cff1e..000000000 --- a/vendor/modernc.org/libc/mem_musl.go +++ /dev/null @@ -1,151 +0,0 @@ -// Copyright 2023 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 ( - "math" - mbits "math/bits" - - "modernc.org/memory" -) - -const ( - isMemBrk = false -) - -func Xmalloc(tls *TLS, n Tsize_t) (r uintptr) { - if __ccgo_strace { - trc("tls=%v n=%v, (%v:)", tls, n, origin(2)) - defer func() { trc("-> %v", r) }() - } - if n > math.MaxInt { - tls.setErrno(ENOMEM) - return 0 - } - - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - if n == 0 { - // malloc(0) should return unique pointers - // (often expected and gnulib replaces malloc if malloc(0) returns 0) - n = 1 - } - var err error - if r, err = allocator.UintptrMalloc(int(n)); err != nil { - r = 0 - tls.setErrno(ENOMEM) - } - return r -} - -func Xcalloc(tls *TLS, m Tsize_t, n Tsize_t) (r uintptr) { - if __ccgo_strace { - trc("tls=%v m=%v n=%v, (%v:)", tls, m, n, origin(2)) - defer func() { trc("-> %v", r) }() - } - hi, rq := mbits.Mul(uint(m), uint(n)) - if hi != 0 || rq > math.MaxInt { - tls.setErrno(ENOMEM) - return 0 - } - - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - if rq == 0 { - rq = 1 - } - - var err error - if r, err = allocator.UintptrCalloc(int(rq)); err != nil { - r = 0 - tls.setErrno(ENOMEM) - } - return r -} - -func Xrealloc(tls *TLS, p uintptr, n Tsize_t) (r uintptr) { - if __ccgo_strace { - trc("tls=%v p=%v n=%v, (%v:)", tls, p, n, origin(2)) - defer func() { trc("-> %v", r) }() - } - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - var err error - if r, err = allocator.UintptrRealloc(p, int(n)); err != nil { - r = 0 - tls.setErrno(ENOMEM) - } - return r -} - -func Xfree(tls *TLS, p uintptr) { - if __ccgo_strace { - trc("tls=%v p=%v, (%v:)", tls, p, origin(2)) - } - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - allocator.UintptrFree(p) -} - -func Xmalloc_usable_size(tls *TLS, p uintptr) (r Tsize_t) { - if __ccgo_strace { - trc("tls=%v p=%v, (%v:)", tls, p, origin(2)) - defer func() { trc("-> %v", r) }() - } - if p == 0 { - return 0 - } - - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - return Tsize_t(memory.UintptrUsableSize(p)) -} - -func MemAudit() (r []*MemAuditError) { - return nil -} - -func UsableSize(p uintptr) Tsize_t { - allocatorMu.Lock() - - defer allocatorMu.Unlock() - - return Tsize_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 } |