37 lines
952 B
C++
37 lines
952 B
C++
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/* POSIX userspace implementation of libluna hooks. */
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#include <luna/Attributes.h>
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#include <luna/Result.h>
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#include <luna/SourceLocation.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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_weak [[noreturn]] bool __check_failed(SourceLocation location, const char* expr)
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{
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fprintf(stderr, "Check failed at %s:%d in %s: %s\n", location.file(), location.line(), location.function(), expr);
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abort();
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}
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void debug_log_impl(const char* format, va_list ap)
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{
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vfprintf(stderr, format, ap);
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fputc('\n', stderr);
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}
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Result<void*> allocate_pages_impl(usize count)
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{
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void* rc = mmap(nullptr, count * PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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if (rc == MAP_FAILED) { return err(errno); }
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return 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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int rc = munmap(address, count * PAGE_SIZE);
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if (rc < 0) { return err(errno); }
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return {};
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}
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