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Set stack as function of max call depth #608

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merged 1 commit into from
Nov 13, 2024
Merged

Set stack as function of max call depth #608

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15 changes: 8 additions & 7 deletions vm/inc/ubpf.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,11 +39,18 @@ extern "C"
#define UBPF_MAX_INSTS 65536
#endif

/**
* @brief Default maximum number of nested calls in the VM.
*/
#if !defined(UBPF_MAX_CALL_DEPTH)
#define UBPF_MAX_CALL_DEPTH 8
#endif

/**
* @brief Default stack size for the eBPF program. Must be divisible by 16.
*/
#if !defined(UBPF_EBPF_STACK_SIZE)
#define UBPF_EBPF_STACK_SIZE (8 * 1024)
#define UBPF_EBPF_STACK_SIZE (UBPF_MAX_CALL_DEPTH * 512)
#endif

/**
Expand All @@ -60,12 +67,6 @@ extern "C"

#define UBPF_EBPF_NONVOLATILE_SIZE (sizeof(uint64_t) * 5)

/**
* @brief Default maximum number of nested calls in the VM.
*/
#if !defined(UBPF_MAX_CALL_DEPTH)
#define UBPF_MAX_CALL_DEPTH 10
#endif

/**
* @brief Opaque type for a the uBPF VM.
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