diff options
Diffstat (limited to '05/main.b')
| -rw-r--r-- | 05/main.b | 27 |
1 files changed, 23 insertions, 4 deletions
@@ -8,8 +8,6 @@ byte 0 byte 0 goto main -global output_fd - global object_macros_size global function_macros_size @@ -36,6 +34,9 @@ global enumerators ; for unions, offset will always be 0. global structures global structures_bytes_used +; file offset/runtime address to write next piece of read-only data; initialized in main +global rodata_end_addr +global output_file_data #include util.b #include idents.b @@ -149,6 +150,8 @@ function main local ast local p local i + local output_fd + fill_in_powers_of_10() typedefs = ident_list_create(100000) @@ -173,8 +176,12 @@ function main input_filename = argv1 output_filename = argv2 :have_filenames - output_fd = open_w(output_filename) - rodata_end_offset = RODATA_OFFSET + output_fd = open_rw(output_filename, 493) + rodata_end_addr = RODATA_ADDR + + ftruncate(output_fd, RWDATA_END) + output_file_data = mmap(0, RWDATA_END, PROT_READ_WRITE, MAP_SHARED, output_fd, 0) + if output_file_data ] 0xffffffffffff0000 goto mmap_output_fd_failed pptokens = split_into_preprocessing_tokens(input_filename) ;print_pptokens(pptokens) @@ -195,8 +202,20 @@ function main parse_tokens(tokens) + p = output_file_data + RODATA_ADDR + munmap(output_file_data, RWDATA_END) + close(output_fd) + exit(0) +:mmap_output_fd_failed + fputs(2, .str_mmap_output_fd_failed) + exit(1) +:str_mmap_output_fd_failed + string Couldn't mmap output file. + byte 10 + byte 0 + :usage_error fputs(2, .str_usage_error) exit(1) |