e4da71010c
Fujitsu: POSTK_TEMP_FIX_66 Refs: #1009 Change-Id: Ic0f04ac6b7f6c6bb01b55fb389bf9befd56b1dd9
50 lines
1.4 KiB
Diff
50 lines
1.4 KiB
Diff
diff --git a/arch/x86_64/kernel/syscall.c b/arch/x86_64/kernel/syscall.c
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index 4b2742b..a3173c9 100644
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--- a/arch/x86_64/kernel/syscall.c
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+++ b/arch/x86_64/kernel/syscall.c
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@@ -1670,6 +1670,11 @@ long do_arch_prctl(unsigned long code, unsigned long address)
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break;
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case ARCH_SET_GS:
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return -ENOTSUPP;
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+ case 999: {
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+ struct thread *thread = cpu_local_var(current);
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+ thread->proc->dblsig = (int)address;
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+ return 0;
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+ }
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default:
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return -EINVAL;
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}
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diff --git a/kernel/include/process.h b/kernel/include/process.h
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index 24acf1f..dd94469 100644
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--- a/kernel/include/process.h
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+++ b/kernel/include/process.h
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@@ -580,6 +580,8 @@ struct process {
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#endif // PROFILE_ENABLE
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int nr_processes; /* For partitioned execution */
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int process_rank; /* Rank in partition */
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+
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+ int dblsig;
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};
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/*
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diff --git a/kernel/syscall.c b/kernel/syscall.c
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index 15d4593..3d03fad 100644
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--- a/kernel/syscall.c
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+++ b/kernel/syscall.c
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@@ -9632,6 +9632,15 @@ long syscall(int num, ihk_mc_user_context_t *ctx)
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if (!list_empty(&thread->sigpending) ||
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!list_empty(&thread->sigcommon->sigpending)) {
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+ if (!list_empty(&thread->sigcommon->sigpending) &&
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+ thread->proc->dblsig) {
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+ kprintf("have a signal, waiting arrive more signal\n");
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+ while (list_is_singular(
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+ &thread->sigcommon->sigpending)) {
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+ schedule();
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+ }
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+ kprintf("have some signals\n");
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+ }
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check_signal(l, NULL, num);
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}
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