mirror of
https://github.com/torvalds/linux
synced 2024-09-28 15:31:19 +00:00
987bcdacb1
Drop support to compile the kernel with gcc versions older than 3.3.3. This allows us to use the "Q" inline assembly contraint on some more inline assemblies without duplicating a lot of complex code (e.g. __xchg and __cmpxchg). The distinction for older gcc versions can be removed which saves a few lines and simplifies the code. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
78 lines
3.2 KiB
C
78 lines
3.2 KiB
C
/*
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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/sched.h>
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#include <linux/kbuild.h>
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#include <asm/vdso.h>
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#include <asm/sigp.h>
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/*
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* Make sure that the compiler is new enough. We want a compiler that
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* is known to work with the "Q" assembler constraint.
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*/
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#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
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#error Your compiler is too old; please use version 3.3.3 or newer
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#endif
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int main(void)
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{
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DEFINE(__THREAD_info, offsetof(struct task_struct, stack));
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DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp));
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DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info));
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DEFINE(__THREAD_mm_segment,
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offsetof(struct task_struct, thread.mm_segment));
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BLANK();
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DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
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BLANK();
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DEFINE(__PER_atmid, offsetof(per_struct, lowcore.words.perc_atmid));
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DEFINE(__PER_address, offsetof(per_struct, lowcore.words.address));
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DEFINE(__PER_access_id, offsetof(per_struct, lowcore.words.access_id));
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BLANK();
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DEFINE(__TI_task, offsetof(struct thread_info, task));
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DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain));
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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_precount, offsetof(struct thread_info, preempt_count));
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DEFINE(__TI_user_timer, offsetof(struct thread_info, user_timer));
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DEFINE(__TI_system_timer, offsetof(struct thread_info, system_timer));
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BLANK();
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DEFINE(__PT_ARGS, offsetof(struct pt_regs, args));
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DEFINE(__PT_PSW, offsetof(struct pt_regs, psw));
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DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs));
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DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2));
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DEFINE(__PT_ILC, offsetof(struct pt_regs, ilc));
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DEFINE(__PT_SVCNR, offsetof(struct pt_regs, svcnr));
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DEFINE(__PT_SIZE, sizeof(struct pt_regs));
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BLANK();
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DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain));
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DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs));
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DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1));
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BLANK();
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/* timeval/timezone offsets for use by vdso */
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DEFINE(__VDSO_UPD_COUNT, offsetof(struct vdso_data, tb_update_count));
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DEFINE(__VDSO_XTIME_STAMP, offsetof(struct vdso_data, xtime_tod_stamp));
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DEFINE(__VDSO_XTIME_SEC, offsetof(struct vdso_data, xtime_clock_sec));
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DEFINE(__VDSO_XTIME_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
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DEFINE(__VDSO_WTOM_SEC, offsetof(struct vdso_data, wtom_clock_sec));
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DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
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DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
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DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
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DEFINE(__VDSO_ECTG_BASE,
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offsetof(struct vdso_per_cpu_data, ectg_timer_base));
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DEFINE(__VDSO_ECTG_USER,
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offsetof(struct vdso_per_cpu_data, ectg_user_time));
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/* constants used by the vdso */
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DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
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DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
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DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
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/* constants for SIGP */
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DEFINE(__SIGP_STOP, sigp_stop);
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DEFINE(__SIGP_RESTART, sigp_restart);
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DEFINE(__SIGP_SENSE, sigp_sense);
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DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
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return 0;
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}
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