4d86896793
When -Wmissing-prototypes is enabled, the some asm-offsets.c files fail to build, even when this warning is disabled in the Makefile for normal files: arch/sparc/kernel/asm-offsets.c:22:5: error: no previous prototype for 'sparc32_foo' [-Werror=missing-prototypes] arch/sparc/kernel/asm-offsets.c:48:5: error: no previous prototype for 'foo' [-Werror=missing-prototypes] Address this by making use of the same trick as x86, marking these functions as 'static __used' to avoid the need for a prototype by not drop them in dead-code elimination. Suggested-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://lore.kernel.org/lkml/CAK7LNARfEmFk0Du4Hed19eX_G6tUC5wG0zP+L1AyvdpOF4ybXQ@mail.gmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Generate definitions needed by assembly language modules.
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* This code generates raw asm output which is post-processed to extract
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* and format the required data.
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*/
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#include <linux/types.h>
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#include <linux/stddef.h>
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#include <linux/sched.h>
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#include <linux/ptrace.h>
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#include <linux/kbuild.h>
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#include <asm/io.h>
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static void __used foo(void)
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{
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DEFINE(TI_TASK, offsetof(struct thread_info, task));
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DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
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DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
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DEFINE(TI_FP, offsetof(struct thread_info, fp));
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DEFINE(TI_STATUS, offsetof(struct thread_info, status));
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BLANK();
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DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
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DEFINE(TASK_CRED, offsetof(struct task_struct, cred));
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DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
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DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader));
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DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
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BLANK();
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DEFINE(CRED_UID, offsetof(struct cred, uid));
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DEFINE(CRED_EUID, offsetof(struct cred, euid));
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DEFINE(CRED_GID, offsetof(struct cred, gid));
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DEFINE(CRED_EGID, offsetof(struct cred, egid));
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BLANK();
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DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
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DEFINE(PT_PTRACED, PT_PTRACED);
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DEFINE(CLONE_VM, CLONE_VM);
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DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
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DEFINE(SIGCHLD, SIGCHLD);
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BLANK();
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DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
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DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
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}
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