[onert] Add MockSycallManager for customized system call mocking #16333
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It adds new MockSyscallsManager class to provide configurable hook system for mocking system calls in tests. ONE-DCO-1.0-Signed-off-by: Jonghwa Lee <[email protected]>
batcheu
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Sample code is in below. MockSyscallsManager::getInstance().resetAll();
// Add a hook for fread()
MockSyscallsManager::getInstance().setFreadHook(
[](void *ptr, size_t size, size_t, FILE *) -> int {
if (size == NPUBIN_META_SIZE)
{
auto meta = reinterpret_cast<npubin_meta *>(ptr);
meta->program_size = 1024;
meta->weight_size = 1024;
meta->size = 4096;
}
return 1;
});
MockSyscallsManager::getInstance().setIoctlHook(
[](int, unsigned long request, void *arg) -> int {
// Get Version
if (request == _IOR(0x88, 1, unsigned int))
{
// Return version 3.2.X.X for trix backend sanity checking
*static_cast<int *>(arg) = 0x3020000;
}
return 0;
}); |
batcheu
commented
Dec 3, 2025
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| #include "mock_syscalls.h" | ||
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| int open(const char *pathname, int flags, ...) |
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Previous form of open() was,
int open(const char *, int, ...) { return 0; }
batcheu
commented
Dec 3, 2025
| { | ||
| va_list args; | ||
| va_start(args, flags); | ||
| mode_t mode = va_arg(args, mode_t); |
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The parameter 'mode' is only required when a file is created (O_CREAT).
batcheu
commented
Dec 3, 2025
| return 0; // Default mock return value | ||
| } | ||
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| void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) |
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The previous definition of mmap() was,
void *mmap(void *, size_t, int, int, int, off_t) { return (void *)0x1; }
batcheu
commented
Dec 3, 2025
| return (void *)0x1; // Default mock return value | ||
| } | ||
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| int munmap(void *addr, size_t length) |
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The previous definition of munmap() was,
int munmap(void *, size_t) { return 0; }
batcheu
commented
Dec 3, 2025
| return 0; // Default mock return value | ||
| } | ||
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| int close(int fd) |
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Previous definition of close(),
int close(int) { return 0; }
batcheu
commented
Dec 3, 2025
| return 0; // Default mock return value | ||
| } | ||
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| int ioctl(int fd, unsigned long request, ...) |
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Previous definition of ioctl(),
int ioctl(int, unsigned long, ...) { return 0; }
batcheu
commented
Dec 3, 2025
| return 0; // Default mock return value | ||
| } | ||
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| FILE *fopen(const char *path, const char *mode) |
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Previous definition of fopen()
size_t fread(void *, size_t, size_t, FILE *) { return 1; }
batcheu
commented
Dec 3, 2025
| return (FILE *)0x1; // Default mock return value | ||
| } | ||
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| int fclose(FILE *stream) |
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fclose() is newly added.
batcheu
commented
Dec 3, 2025
| return 0; | ||
| } | ||
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| size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream) |
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Previous definition of fread()
size_t fread(void *, size_t, size_t, FILE *) { return 1; }
batcheu
commented
Dec 3, 2025
| return 1; // Default mock return value | ||
| } | ||
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| int fseek(FILE *stream, long offset, int whence) |
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Previous definition of fseek()
int fseek(FILE *, long, int) { return 0; }
chunseoklee
approved these changes
Dec 3, 2025
hseok-oh
reviewed
Dec 8, 2025
Comment on lines
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| namespace onert | ||
| { | ||
| namespace backend | ||
| { | ||
| namespace trix | ||
| { | ||
| namespace ops | ||
| { | ||
| namespace test | ||
| { |
Contributor
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Please update on next PR
Suggested change
| namespace onert | |
| { | |
| namespace backend | |
| { | |
| namespace trix | |
| { | |
| namespace ops | |
| { | |
| namespace test | |
| { | |
| namespace onert::backend::trix::ops::test | |
| { |
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It adds new MockSyscallsManager class to provide configurable hook system for mocking system calls in tests.
ONE-DCO-1.0-Signed-off-by: Jonghwa Lee [email protected]