From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/arch/m68k/kernel/signal.c | 55 +++++++++++++++++++++++++++++--------------------------
1 files changed, 29 insertions(+), 26 deletions(-)
diff --git a/kernel/arch/m68k/kernel/signal.c b/kernel/arch/m68k/kernel/signal.c
index c67a68b..5d12736 100644
--- a/kernel/arch/m68k/kernel/signal.c
+++ b/kernel/arch/m68k/kernel/signal.c
@@ -47,7 +47,6 @@
#include <asm/setup.h>
#include <linux/uaccess.h>
-#include <asm/pgtable.h>
#include <asm/traps.h>
#include <asm/ucontext.h>
#include <asm/cacheflush.h>
@@ -62,25 +61,25 @@
#define FMT4SIZE 0
#else
#define FORMAT 0
-#define FMT4SIZE sizeof(((struct frame *)0)->un.fmt4)
+#define FMT4SIZE sizeof_field(struct frame, un.fmt4)
#endif
static const int frame_size_change[16] = {
- [1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */
- [2] = sizeof(((struct frame *)0)->un.fmt2),
- [3] = sizeof(((struct frame *)0)->un.fmt3),
+ [1] = -1, /* sizeof_field(struct frame, un.fmt1), */
+ [2] = sizeof_field(struct frame, un.fmt2),
+ [3] = sizeof_field(struct frame, un.fmt3),
[4] = FMT4SIZE,
- [5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */
- [6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */
- [7] = sizeof(((struct frame *)0)->un.fmt7),
- [8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */
- [9] = sizeof(((struct frame *)0)->un.fmt9),
- [10] = sizeof(((struct frame *)0)->un.fmta),
- [11] = sizeof(((struct frame *)0)->un.fmtb),
- [12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */
- [13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */
- [14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */
- [15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */
+ [5] = -1, /* sizeof_field(struct frame, un.fmt5), */
+ [6] = -1, /* sizeof_field(struct frame, un.fmt6), */
+ [7] = sizeof_field(struct frame, un.fmt7),
+ [8] = -1, /* sizeof_field(struct frame, un.fmt8), */
+ [9] = sizeof_field(struct frame, un.fmt9),
+ [10] = sizeof_field(struct frame, un.fmta),
+ [11] = sizeof_field(struct frame, un.fmtb),
+ [12] = -1, /* sizeof_field(struct frame, un.fmtc), */
+ [13] = -1, /* sizeof_field(struct frame, un.fmtd), */
+ [14] = -1, /* sizeof_field(struct frame, un.fmte), */
+ [15] = -1, /* sizeof_field(struct frame, un.fmtf), */
};
static inline int frame_extra_sizes(int f)
@@ -651,7 +650,8 @@
regs->vector = formatvec & 0xfff;
} else {
struct switch_stack *sw = (struct switch_stack *)regs - 1;
- unsigned long buf[fsize / 2]; /* yes, twice as much */
+ /* yes, twice as much as max(sizeof(frame.un.fmt<x>)) */
+ unsigned long buf[sizeof_field(struct frame, un) / 2];
/* that'll make sure that expansion won't crap over data */
if (copy_from_user(buf + fsize / 4, fp, fsize))
@@ -787,7 +787,7 @@
struct sigframe __user *frame = (struct sigframe __user *)(usp - 4);
sigset_t set;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+ if (!access_ok(frame, sizeof(*frame)))
goto badframe;
if (__get_user(set.sig[0], &frame->sc.sc_mask) ||
(_NSIG_WORDS > 1 &&
@@ -802,7 +802,7 @@
return regs->d0;
badframe:
- force_sig(SIGSEGV, current);
+ force_sig(SIGSEGV);
return 0;
}
@@ -812,7 +812,7 @@
struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4);
sigset_t set;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+ if (!access_ok(frame, sizeof(*frame)))
goto badframe;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
@@ -824,7 +824,7 @@
return regs->d0;
badframe:
- force_sig(SIGSEGV, current);
+ force_sig(SIGSEGV);
return 0;
}
@@ -928,7 +928,8 @@
err |= __put_user(0x70004e40 + (__NR_sigreturn << 16),
(long __user *)(frame->retcode));
#else
- err |= __put_user((void *) ret_from_user_signal, &frame->pretcode);
+ err |= __put_user((long) ret_from_user_signal,
+ (long __user *) &frame->pretcode);
#endif
if (err)
@@ -1007,7 +1008,8 @@
err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4));
#endif
#else
- err |= __put_user((void *) ret_from_user_rt_signal, &frame->pretcode);
+ err |= __put_user((long) ret_from_user_rt_signal,
+ (long __user *) &frame->pretcode);
#endif /* CONFIG_MMU */
if (err)
@@ -1063,7 +1065,7 @@
regs->d0 = -EINTR;
break;
}
- /* fallthrough */
+ fallthrough;
case -ERESTARTNOINTR:
do_restart:
regs->d0 = regs->orig_d0;
@@ -1127,9 +1129,10 @@
void do_notify_resume(struct pt_regs *regs)
{
- if (test_thread_flag(TIF_SIGPENDING))
+ if (test_thread_flag(TIF_NOTIFY_SIGNAL) ||
+ test_thread_flag(TIF_SIGPENDING))
do_signal(regs);
- if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
+ if (test_thread_flag(TIF_NOTIFY_RESUME))
tracehook_notify_resume(regs);
}
--
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