apio
0fad179485
All checks were successful
continuous-integration/drone/push Build is passing
libluna/libos headers can now go after errno.h, so there's no reason to keep them separate.
35 lines
867 B
C++
35 lines
867 B
C++
#include <bits/errno-return.h>
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#include <luna/Heap.h>
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#include <sys/mman.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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extern "C"
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{
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void* mmap(void* addr, size_t len, int prot, int flags, int, off_t)
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{
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long rc = syscall(SYS_mmap, addr, len, prot, flags);
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__errno_return(rc, void*);
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}
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int munmap(void* addr, size_t len)
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{
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long rc = syscall(SYS_munmap, addr, len);
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__errno_return(rc, int);
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}
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}
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Result<void*> allocate_pages_impl(usize count)
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{
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long rc = syscall(SYS_mmap, nullptr, count * PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS);
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if (rc < 0) { return err((int)-rc); }
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return (void*)rc;
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}
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Result<void> release_pages_impl(void* address, usize count)
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{
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long rc = syscall(SYS_munmap, address, count * PAGE_SIZE);
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if (rc < 0) { return err((int)-rc); }
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return {};
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}
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