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11d6498015
On platforms where long is 32 bits, this change fixes a build failure:
/home/linux/arm/gdb/src/gdb/aarch64-linux-tdep.c: In function ‘const target_desc* aarch64_linux_core_read_description(gdbarch*, target_ops*, bfd*)’:
/home/linux/arm/gdb/src/gdb/arch/aarch64-gcs-linux.h:27:24: error: left shift count >= width of type [-Werror=shift-count-overflow]
27 | #define HWCAP_GCS (1UL << 32)
| ~~~~^~~~~
/home/linux/arm/gdb/src/gdb/aarch64-linux-tdep.c:1714:47: note: in expansion of macro ‘HWCAP_GCS’
1714 | features.gcs = features.gcs_linux = hwcap & HWCAP_GCS;
| ^~~~~~~~~
Suggested-by: Tom de Vries <tdevries@suse.de>
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33372
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Common Linux target-dependent definitions for AArch64 GCS
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_ARCH_AARCH64_GCS_LINUX_H
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#define GDB_ARCH_AARCH64_GCS_LINUX_H
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#include <stdint.h>
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/* Feature check for Guarded Control Stack. */
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#ifndef HWCAP_GCS
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#define HWCAP_GCS (1ULL << 32)
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#endif
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/* Make sure we only define these if the kernel header doesn't. */
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#ifndef GCS_MAGIC
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/* GCS state (NT_ARM_GCS). */
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struct user_gcs
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{
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uint64_t features_enabled;
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uint64_t features_locked;
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uint64_t gcspr_el0;
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};
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#endif /* GCS_MAGIC */
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#endif /* GDB_ARCH_AARCH64_GCS_LINUX_H */
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