3c6331c29f
Merged from revision b638b63b99d66786cb37336292604a2ae3490cfd. The patch successfully bootstraps on x86_64-linux-gnu and ppc64le-linux-gnu. I also tested ppc64-linux-gnu that exposed: https://reviews.llvm.org/D80864 (which is fixed on master). Abidiff looks happy and I made UBSAN and ASAN bootstrap on x86_64-linux-gnu. I'm planning to do merge from master twice a year, once now and next time short before stage1 closes. I am going to install the patches as merge from master is obvious and I haven't made anything special. libsanitizer/ChangeLog: * MERGE: Merge from master.
129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
//===-- sanitizer_common_interceptors_netbsd_compat.inc ---------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Common function interceptors for tools like AddressSanitizer,
|
|
// ThreadSanitizer, MemorySanitizer, etc.
|
|
//
|
|
// Interceptors for NetBSD old function calls that have been versioned.
|
|
//
|
|
// NetBSD minimal version supported 9.0.
|
|
// NetBSD current version supported 9.99.26.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#if SANITIZER_NETBSD
|
|
|
|
// First undef all mangled symbols.
|
|
// Next, define compat interceptors.
|
|
// Finally, undef INIT_ and redefine it.
|
|
// This allows to avoid preprocessor issues.
|
|
|
|
#undef fstatvfs
|
|
#undef fstatvfs1
|
|
#undef getmntinfo
|
|
#undef getvfsstat
|
|
#undef statvfs
|
|
#undef statvfs1
|
|
|
|
INTERCEPTOR(int, statvfs, char *path, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
|
|
// FIXME: under ASan the call below may write to freed memory and corrupt
|
|
// its metadata. See
|
|
// https://github.com/google/sanitizers/issues/321.
|
|
int res = REAL(statvfs)(path, buf);
|
|
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs90_sz);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, fstatvfs, int fd, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
// FIXME: under ASan the call below may write to freed memory and corrupt
|
|
// its metadata. See
|
|
// https://github.com/google/sanitizers/issues/321.
|
|
int res = REAL(fstatvfs)(fd, buf);
|
|
if (!res) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs90_sz);
|
|
if (fd >= 0)
|
|
COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#undef INIT_STATVFS
|
|
#define INIT_STATVFS \
|
|
COMMON_INTERCEPT_FUNCTION(statvfs); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatvfs); \
|
|
COMMON_INTERCEPT_FUNCTION(__statvfs90); \
|
|
COMMON_INTERCEPT_FUNCTION(__fstatvfs90)
|
|
|
|
INTERCEPTOR(int, __getmntinfo13, void **mntbufp, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, __getmntinfo13, mntbufp, flags);
|
|
int cnt = REAL(__getmntinfo13)(mntbufp, flags);
|
|
if (cnt > 0 && mntbufp) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mntbufp, sizeof(void *));
|
|
if (*mntbufp)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statvfs90_sz);
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
#undef INIT_GETMNTINFO
|
|
#define INIT_GETMNTINFO \
|
|
COMMON_INTERCEPT_FUNCTION(__getmntinfo13); \
|
|
COMMON_INTERCEPT_FUNCTION(__getmntinfo90)
|
|
|
|
INTERCEPTOR(int, getvfsstat, void *buf, SIZE_T bufsize, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getvfsstat, buf, bufsize, flags);
|
|
int ret = REAL(getvfsstat)(buf, bufsize, flags);
|
|
if (buf && ret > 0)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, ret * struct_statvfs90_sz);
|
|
return ret;
|
|
}
|
|
|
|
#undef INIT_GETVFSSTAT
|
|
#define INIT_GETVFSSTAT \
|
|
COMMON_INTERCEPT_FUNCTION(getvfsstat); \
|
|
COMMON_INTERCEPT_FUNCTION(__getvfsstat90)
|
|
|
|
INTERCEPTOR(int, statvfs1, const char *path, void *buf, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statvfs1, path, buf, flags);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
|
|
int res = REAL(statvfs1)(path, buf, flags);
|
|
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs90_sz);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, fstatvfs1, int fd, void *buf, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs1, fd, buf, flags);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
int res = REAL(fstatvfs1)(fd, buf, flags);
|
|
if (!res) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs90_sz);
|
|
if (fd >= 0)
|
|
COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#undef INIT_STATVFS1
|
|
#define INIT_STATVFS1 \
|
|
COMMON_INTERCEPT_FUNCTION(statvfs1); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatvfs1); \
|
|
COMMON_INTERCEPT_FUNCTION(__statvfs190); \
|
|
COMMON_INTERCEPT_FUNCTION(__fstatvfs190)
|
|
|
|
#endif
|