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https://github.com/SerenityOS/serenity
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fdbd9f1e27
First of all, change sys$mmap to take a struct SC_mmap_params since our sycsall calling convention can't handle more than 3 arguments. This exposed a bug in Syscall::invoke() needing to use clobber lists. It was a bit confusing to debug. :^)
28 lines
736 B
C++
28 lines
736 B
C++
#include <mman.h>
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#include <errno.h>
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#include <stdio.h>
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#include <Kernel/Syscall.h>
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extern "C" {
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void* mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset)
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{
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Syscall::SC_mmap_params params { (dword)addr, size, prot, flags, fd, offset };
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int rc = Syscall::invoke(Syscall::SC_mmap, (dword)¶ms);
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__RETURN_WITH_ERRNO(rc, (void*)rc, (void*)-1);
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}
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int munmap(void* addr, size_t size)
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{
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int rc = Syscall::invoke(Syscall::SC_munmap, (dword)addr, (dword)size);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int set_mmap_name(void* addr, size_t size, const char* name)
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{
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int rc = Syscall::invoke(Syscall::SC_set_mmap_name, (dword)addr, (dword)size, (dword)name);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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}
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