jit_stream_flash.h

Include dependency graph for jit_stream_flash.h:

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JIT code caching in flash memory - common implementation.

Functions

void jit_stream_flash_init(GlobalContext *global)

Initialize JIT stream flash subsystem.

Parameters:

• global – Global context

const struct Nif *jit_stream_flash_get_nif(const char *nifname)

Get NIF for jit_stream_flash operations.

Parameters:

• nifname – NIF name

Returns:

NIF pointer or NULL

ModuleNativeEntryPoint jit_stream_flash_entry_point(Context *ctx, term jit_stream)

Get entry point from jit_stream_flash. Called by jit_stream_entry_point

Parameters:

• ctx – Context

• jit_stream – JIT stream term

Returns:

Entry point or NULL

void globalcontext_set_cache_native_code(GlobalContext *global, Module *mod, uint16_t version, ModuleNativeEntryPoint entry_point, uint32_t labels)

Finalize flash operation by marking an entry point as valid for a given module. This is called by sys_set_cache_native_code.

Parameters:

• global – Global context

• mod – Module

• version – Module version

• entry_point – Entry point

• labels – Number of labels

struct JSFlashPlatformContext *jit_stream_flash_platform_init(void)

Initialize platform flash context.

Returns:

Platform flash context, or NULL on error

void jit_stream_flash_platform_destroy(struct JSFlashPlatformContext *pf_ctx)

Destroy platform flash context.

Parameters:

• pf_ctx – Platform flash context to destroy

bool jit_stream_flash_platform_erase_sector(struct JSFlashPlatformContext *pf_ctx, uintptr_t addr)

Erase a flash sector at the given address.

Parameters:

• pf_ctx – Platform flash context

• addr – Virtual address of the sector to erase (must be sector-aligned)

Returns:

true on success, false on error

bool jit_stream_flash_platform_write_page(struct JSFlashPlatformContext *pf_ctx, uintptr_t addr, const uint8_t *data)

Write a page to flash.

Parameters:

• pf_ctx – Platform flash context

• addr – Virtual address to write to (must be page-aligned)

• data – Data to write (must be FLASH_PAGE_SIZE bytes)

Returns:

true on success, false on error

uintptr_t jit_stream_flash_platform_ptr_to_executable(uintptr_t addr)

Convert data bus address to instruction bus address.

Parameters:

• addr – Data bus address

Returns:

Instruction bus address (executable pointer)

uintptr_t jit_stream_flash_platform_executable_to_ptr(uintptr_t addr)

Convert instruction bus address to data bus address.

Parameters:

• addr – Instruction bus address (executable pointer)

Returns:

Data bus address