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Kernel: Add support for SA_SIGINFO

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Bananymous
2025-11-13 04:19:06 +02:00
parent a44c45ff9e
commit dd636ffcb2
13 changed files with 260 additions and 96 deletions
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6
kernel/include/kernel/Process.h
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@@ -192,7 +192,7 @@ namespace Kernel
void set_stopped(bool stopped, int signal);
void wait_while_stopped();
static BAN::ErrorOr<void> kill(pid_t pid, int signal);
static BAN::ErrorOr<void> kill(pid_t pid, int signal, const siginfo_t& = {});
BAN::ErrorOr<long> sys_kill(pid_t pid, int signal);
BAN::ErrorOr<long> sys_sigaction(int signal, const struct sigaction* act, struct sigaction* oact);
BAN::ErrorOr<long> sys_sigpending(sigset_t* set);
@@ -290,7 +290,7 @@ namespace Kernel
return m_signal_pending_mask;
}
void add_pending_signal(uint8_t signal)
void add_pending_signal(uint8_t signal, const siginfo_t& info)
{
ASSERT(signal >= _SIGMIN);
ASSERT(signal <= _SIGMAX);
@@ -302,6 +302,7 @@ namespace Kernel
if (handler == SIG_DFL && (signal == SIGCHLD || signal == SIGURG))
return;
m_signal_pending_mask |= 1ull << signal;
m_signal_infos[signal] = info;
}
void remove_pending_signal(uint8_t signal)
@@ -354,6 +355,7 @@ namespace Kernel
uint64_t m_alarm_wake_time_ns { 0 };
mutable SpinLock m_signal_lock;
siginfo_t m_signal_infos[_SIGMAX + 1] { };
struct sigaction m_signal_handlers[_SIGMAX + 1] { };
uint64_t m_signal_pending_mask { 0 };

5
kernel/include/kernel/Thread.h
View File

@@ -59,8 +59,8 @@ namespace Kernel
bool can_add_signal_to_execute() const;
bool will_execute_signal() const;
// Returns true if handled signal had SA_RESTART
bool handle_signal(int signal = 0);
void add_signal(int signal);
bool handle_signal(int signal = 0, const siginfo_t& signal_info = {});
void add_signal(int signal, const siginfo_t& info);
void set_suspend_signal_mask(uint64_t sigmask);
static bool is_stopping_signal(int signal);
@@ -174,6 +174,7 @@ namespace Kernel
InterruptStack m_interrupt_stack { };
InterruptRegisters m_interrupt_registers { };
siginfo_t m_signal_infos[_SIGMAX + 1] { };
uint64_t m_signal_pending_mask { 0 };
uint64_t m_signal_block_mask { 0 };
BAN::Optional<uint64_t> m_signal_suspend_mask;