diff options
Diffstat (limited to 'yjit_asm.h')
| -rw-r--r-- | yjit_asm.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/yjit_asm.h b/yjit_asm.h index b1b2baae2e..ad032d0139 100644 --- a/yjit_asm.h +++ b/yjit_asm.h @@ -55,8 +55,14 @@ typedef struct CodeBlock // 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; } codeblock_t; +// 1 is not aligned so this won't match any pages +#define ALIGNED_WRITE_POSITION_NONE 1 + enum OpndType { OPND_NONE, @@ -261,6 +267,9 @@ static inline uint32_t cb_new_label(codeblock_t *cb, const char *name); static inline void cb_write_label(codeblock_t *cb, uint32_t label_idx); static inline void cb_label_ref(codeblock_t *cb, uint32_t label_idx); static inline void cb_link_labels(codeblock_t *cb); +static inline void cb_mark_all_writeable(codeblock_t *cb); +static inline void cb_mark_position_writeable(codeblock_t *cb, uint32_t write_pos); +static inline void cb_mark_all_executable(codeblock_t *cb); // Encode individual instructions into a code block static inline void add(codeblock_t *cb, x86opnd_t opnd0, x86opnd_t opnd1); |