LibC: Implement getrlimit
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@ -30,6 +30,9 @@ namespace Kernel
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Terminated,
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};
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static constexpr size_t kernel_stack_size { PAGE_SIZE * 8 };
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static constexpr size_t userspace_stack_size { PAGE_SIZE * 128 };
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public:
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static BAN::ErrorOr<Thread*> create_kernel(entry_t, void*, Process*);
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static BAN::ErrorOr<Thread*> create_userspace(Process*, PageTable&);
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@ -103,8 +106,6 @@ namespace Kernel
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// {kernel,userspace}_stack has to be destroyed before page table
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BAN::UniqPtr<PageTable> m_keep_alive_page_table;
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static constexpr size_t m_kernel_stack_size { PAGE_SIZE * 8 };
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static constexpr size_t m_userspace_stack_size { PAGE_SIZE * 128 };
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BAN::UniqPtr<VirtualRange> m_kernel_stack;
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BAN::UniqPtr<VirtualRange> m_userspace_stack;
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const pid_t m_tid { 0 };
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@ -64,7 +64,7 @@ namespace Kernel
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PageTable::kernel(),
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KERNEL_OFFSET,
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~(uintptr_t)0,
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m_kernel_stack_size,
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kernel_stack_size,
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PageTable::Flags::ReadWrite | PageTable::Flags::Present,
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true
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));
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@ -104,7 +104,7 @@ namespace Kernel
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thread->m_kernel_stack = TRY(VirtualRange::create_to_vaddr_range(
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page_table,
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0x300000, KERNEL_OFFSET,
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m_kernel_stack_size,
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kernel_stack_size,
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PageTable::Flags::ReadWrite | PageTable::Flags::Present,
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true
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));
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@ -112,7 +112,7 @@ namespace Kernel
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thread->m_userspace_stack = TRY(VirtualRange::create_to_vaddr_range(
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page_table,
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0x300000, KERNEL_OFFSET,
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m_userspace_stack_size,
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userspace_stack_size,
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PageTable::Flags::UserSupervisor | PageTable::Flags::ReadWrite | PageTable::Flags::Present,
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true
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));
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@ -1,7 +1,50 @@
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#include <BAN/Assert.h>
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#include <BAN/Limits.h>
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#include <kernel/Thread.h>
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#include <errno.h>
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#include <limits.h>
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#include <sys/resource.h>
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int getrlimit(int resource, struct rlimit* rlp)
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{
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switch (resource)
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{
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case RLIMIT_CORE:
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rlp->rlim_cur = 0;
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rlp->rlim_max = 0;
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return 0;
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case RLIMIT_CPU:
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rlp->rlim_cur = BAN::numeric_limits<rlim_t>::max();
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rlp->rlim_max = BAN::numeric_limits<rlim_t>::max();
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return 0;
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case RLIMIT_DATA:
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rlp->rlim_cur = BAN::numeric_limits<rlim_t>::max();
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rlp->rlim_max = BAN::numeric_limits<rlim_t>::max();
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return 0;
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case RLIMIT_FSIZE:
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rlp->rlim_cur = BAN::numeric_limits<rlim_t>::max();
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rlp->rlim_max = BAN::numeric_limits<rlim_t>::max();
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return 0;
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case RLIMIT_NOFILE:
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rlp->rlim_cur = OPEN_MAX;
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rlp->rlim_max = OPEN_MAX;
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return 0;
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case RLIMIT_STACK:
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rlp->rlim_cur = Kernel::Thread::userspace_stack_size;
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rlp->rlim_max = Kernel::Thread::userspace_stack_size;
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return 0;
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case RLIMIT_AS:
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rlp->rlim_cur = BAN::numeric_limits<rlim_t>::max();
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rlp->rlim_max = BAN::numeric_limits<rlim_t>::max();
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return 0;
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}
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errno = EINVAL;
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return -1;
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}
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int getrusage(int who, struct rusage* r_usage)
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{
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if (who != RUSAGE_CHILDREN && who != RUSAGE_SELF)
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