diff options
Diffstat (limited to 'yjit_asm.h')
| -rw-r--r-- | yjit_asm.h | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/yjit_asm.h b/yjit_asm.h index ad032d0139..202f21e796 100644 --- a/yjit_asm.h +++ b/yjit_asm.h @@ -26,12 +26,13 @@ typedef struct LabelRef typedef struct CodeBlock { // Memory block - uint8_t *mem_block; + // Users are advised to not use this directly. + uint8_t *mem_block_; // Memory block size uint32_t mem_size; - /// Current writing position + // Current writing position uint32_t write_pos; // Table of registered label addresses @@ -50,14 +51,20 @@ typedef struct CodeBlock // Number of references to labels uint32_t num_refs; - // TODO: system for disassembly/comment strings, indexed by position - - // Flag to enable or disable comments - bool has_asm; // Keep track of the current aligned write position. // Used for changing protection when writing to the JIT buffer uint32_t current_aligned_write_pos; + + // Set if the assembler is unable to output some instructions, + // for example, when there is not enough space or when a jump + // target is too far away. + bool dropped_bytes; + + // Flag to enable or disable comments + bool has_asm; + + } codeblock_t; // 1 is not aligned so this won't match any pages @@ -258,8 +265,8 @@ static inline void cb_init(codeblock_t *cb, uint8_t *mem_block, uint32_t mem_siz static inline void cb_align_pos(codeblock_t *cb, uint32_t multiple); static inline void cb_set_pos(codeblock_t *cb, uint32_t pos); static inline void cb_set_write_ptr(codeblock_t *cb, uint8_t *code_ptr); -static inline uint8_t *cb_get_ptr(codeblock_t *cb, uint32_t index); -static inline uint8_t *cb_get_write_ptr(codeblock_t *cb); +static inline uint8_t *cb_get_ptr(const codeblock_t *cb, uint32_t index); +static inline uint8_t *cb_get_write_ptr(const codeblock_t *cb); static inline void cb_write_byte(codeblock_t *cb, uint8_t byte); static inline void cb_write_bytes(codeblock_t *cb, uint32_t num_bytes, ...); static inline void cb_write_int(codeblock_t *cb, uint64_t val, uint32_t num_bits); |