add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/parisc/kernel/signal.c
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@@ -30,7 +30,6 @@
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 #include <asm/ucontext.h>
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 #include <asm/rt_sigframe.h>
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 #include <linux/uaccess.h>
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-#include <asm/pgalloc.h>
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 #include <asm/cacheflush.h>
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 #include <asm/asm-offsets.h>
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..
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@@ -65,7 +64,6 @@
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 #define INSN_LDI_R25_1	 0x34190002 /* ldi  1,%r25 (in_syscall=1) */
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 #define INSN_LDI_R20	 0x3414015a /* ldi  __NR_rt_sigreturn,%r20 */
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 #define INSN_BLE_SR2_R0  0xe4008200 /* be,l 0x100(%sr2,%r0),%sr0,%r31 */
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-#define INSN_NOP	 0x08000240 /* nop */
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 /* For debugging */
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 #define INSN_DIE_HORRIBLY 0x68000ccc /* stw %r0,0x666(%sr0,%r0) */
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@@ -165,7 +163,7 @@
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 give_sigsegv:
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 	DBG(1,"sys_rt_sigreturn: Sending SIGSEGV\n");
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-	force_sig(SIGSEGV, current);
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+	force_sig(SIGSEGV);
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 	return;
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 }
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@@ -510,7 +508,7 @@
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 			regs->gr[28] = -EINTR;
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 			break;
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 		}
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-		/* fallthrough */
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+		fallthrough;
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 	case -ERESTARTNOINTR:
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 		check_syscallno_in_delay_branch(regs);
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 		break;
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@@ -611,11 +609,10 @@
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 void do_notify_resume(struct pt_regs *regs, long in_syscall)
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 {
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-	if (test_thread_flag(TIF_SIGPENDING))
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+	if (test_thread_flag(TIF_SIGPENDING) ||
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+	    test_thread_flag(TIF_NOTIFY_SIGNAL))
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 		do_signal(regs, in_syscall);
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-	if (test_thread_flag(TIF_NOTIFY_RESUME)) {
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-		clear_thread_flag(TIF_NOTIFY_RESUME);
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+	if (test_thread_flag(TIF_NOTIFY_RESUME))
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 		tracehook_notify_resume(regs);
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-	}
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 }