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8339331: GCC fortify error in vm_version_linux_aarch64.cpp

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Reviewed-by: dholmes
This commit is contained in:
SendaoYan 2024-12-18 06:35:28 +00:00
parent 453310918b
commit 842f801c84
1 changed files with 8 additions and 1 deletions
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9
src/hotspot/os_cpu/linux_aarch64/vm_version_linux_aarch64.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2006, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2006, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
@ -185,7 +185,14 @@ static bool read_fully(const char *fname, char *buf, size_t buflen) {
assert(buflen >= 1, "invalid argument");
int fd = os::open(fname, O_RDONLY, 0);
if (fd != -1) {
PRAGMA_DIAG_PUSH
PRAGMA_NONNULL_IGNORED
// Suppress false positive gcc warning, which may be an example of
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87489
// The warning also hasn't been seen with vanilla gcc release, so may also
// involve some distro-specific gcc patch.
ssize_t read_sz = ::read(fd, buf, buflen);
PRAGMA_DIAG_POP
::close(fd);
// Skip if the contents is just "\n" because some machine only sets