mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-23 14:02:06 -04:00
730cfa45b5
Define _GNU_SOURCE is the base CFLAGS instead of relying on selftests to
manually #define _GNU_SOURCE, which is repetitive and error prone. E.g.
kselftest_harness.h requires _GNU_SOURCE for asprintf(), but if a selftest
includes kvm_test_harness.h after stdio.h, the include guards result in
the effective version of stdio.h consumed by kvm_test_harness.h not
defining asprintf():
In file included from x86_64/fix_hypercall_test.c:12:
In file included from include/kvm_test_harness.h:11:
../kselftest_harness.h:1169:2: error: call to undeclared function
'asprintf'; ISO C99 and later do not support implicit function declarations
[-Wimplicit-function-declaration]
1169 | asprintf(&test_name, "%s%s%s.%s", f->name,
| ^
When including the rseq selftest's "library" code, #undef _GNU_SOURCE so
that rseq.c controls whether or not it wants to build with _GNU_SOURCE.
Reported-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Acked-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/r/20240423190308.2883084-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
43 lines
959 B
C
43 lines
959 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* KVM userfaultfd util
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*
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* Copyright (C) 2018, Red Hat, Inc.
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* Copyright (C) 2019-2022 Google LLC
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*/
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#include <inttypes.h>
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#include <time.h>
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#include <pthread.h>
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#include <linux/userfaultfd.h>
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#include "test_util.h"
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typedef int (*uffd_handler_t)(int uffd_mode, int uffd, struct uffd_msg *msg);
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struct uffd_desc {
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int uffd_mode;
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int uffd;
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int pipefds[2];
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useconds_t delay;
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uffd_handler_t handler;
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pthread_t thread;
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};
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struct uffd_desc *uffd_setup_demand_paging(int uffd_mode, useconds_t delay,
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void *hva, uint64_t len,
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uffd_handler_t handler);
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void uffd_stop_demand_paging(struct uffd_desc *uffd);
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#ifdef PRINT_PER_PAGE_UPDATES
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#define PER_PAGE_DEBUG(...) printf(__VA_ARGS__)
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#else
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#define PER_PAGE_DEBUG(...) _no_printf(__VA_ARGS__)
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#endif
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#ifdef PRINT_PER_VCPU_UPDATES
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#define PER_VCPU_DEBUG(...) printf(__VA_ARGS__)
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#else
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#define PER_VCPU_DEBUG(...) _no_printf(__VA_ARGS__)
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#endif
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