diff options
| -rw-r--r-- | program.c | 12 |
1 files changed, 10 insertions, 2 deletions
@@ -224,7 +224,7 @@ enum { static void write_chunk(uc_chunk_t *chunk, FILE *file, uint32_t flags) { - size_t i; + size_t i, slot; /* write bytecode data */ write_vector(chunk, file); @@ -246,9 +246,14 @@ write_chunk(uc_chunk_t *chunk, FILE *file, uint32_t flags) write_u32(chunk->debuginfo.variables.count, file); for (i = 0; i < chunk->debuginfo.variables.count; i++) { + slot = chunk->debuginfo.variables.entries[i].slot; + + if (slot >= ((size_t)-1 / 2)) + slot = ((uint32_t)-1 / 2) + (slot - ((size_t)-1 / 2)); + write_u32(chunk->debuginfo.variables.entries[i].from, file); write_u32(chunk->debuginfo.variables.entries[i].to, file); - write_u32(chunk->debuginfo.variables.entries[i].slot, file); + write_u32(slot, file); write_u32(chunk->debuginfo.variables.entries[i].nameidx, file); } @@ -657,6 +662,9 @@ read_chunk(FILE *file, uc_chunk_t *chunk, uint32_t flags, const char *subj, char !read_size_t(file, &varrange->slot, sizeof(uint32_t), subjbuf, errp) || !read_size_t(file, &varrange->nameidx, sizeof(uint32_t), subjbuf, errp)) goto out; + + if (varrange->slot >= ((uint32_t)-1 / 2)) + varrange->slot = ((size_t)-1 / 2) + (varrange->slot - ((uint32_t)-1 / 2)); } snprintf(subjbuf, sizeof(subjbuf), "%s variable names", subj); |