diff options
Diffstat (limited to 'meson/test cases/common/227 very long commmand line')
4 files changed, 80 insertions, 0 deletions
diff --git a/meson/test cases/common/227 very long commmand line/codegen.py b/meson/test cases/common/227 very long commmand line/codegen.py new file mode 100755 index 000000000..b1de6073e --- /dev/null +++ b/meson/test cases/common/227 very long commmand line/codegen.py @@ -0,0 +1,7 @@ +#!/usr/bin/env python3 + +import sys +from pathlib import Path + +Path(sys.argv[2]).write_text( + 'int func{n}(void) {{ return {n}; }}'.format(n=sys.argv[1])) diff --git a/meson/test cases/common/227 very long commmand line/main.c b/meson/test cases/common/227 very long commmand line/main.c new file mode 100644 index 000000000..78f2de106 --- /dev/null +++ b/meson/test cases/common/227 very long commmand line/main.c @@ -0,0 +1 @@ +int main(void) { return 0; } diff --git a/meson/test cases/common/227 very long commmand line/meson.build b/meson/test cases/common/227 very long commmand line/meson.build new file mode 100644 index 000000000..70058e6c8 --- /dev/null +++ b/meson/test cases/common/227 very long commmand line/meson.build @@ -0,0 +1,49 @@ +project('very long command lines', 'c') + +# Get the current system's commandline length limit. +if build_machine.system() == 'windows' + # Various limits on windows: + # cmd.exe: 8kb + # CreateProcess: 32kb + limit = 32767 + # NOTE: filename limit is 260 characters unless + # 1. Python >= 3.6 is being used + # 2. Windows 10 registry has been edited to enable long pathnaems + # ninja backend uses absolute filenames, so we ensure they don't exceed 260. +elif build_machine.system() == 'cygwin' + # cygwin-to-win32: see above + # cygwin-to-cygwin: no limit? + # Cygwin is slow, so only test it lightly here. + limit = 8192 +else + # ninja passes whole line as a single argument, for which + # the limit is 128k as of Linux 2.6.23. See MAX_ARG_STRLEN. + # BSD seems similar, see https://www.in-ulm.de/~mascheck/various/argmax + limit = 131072 +endif +# Now exceed that limit, but not so far that the test takes too long. +namelen = 260 +nfiles = 50 + limit / namelen +message('Expected link commandline length is approximately ' + '@0@'.format((nfiles * (namelen+28)))) + +seq = run_command('name_gen.py', nfiles.to_string(), meson.build_root()).stdout().strip().split('\n') + +sources = [] +codegen = find_program('codegen.py') + +i=0 +foreach name : seq + sources += custom_target('codegen' + i.to_string(), + command: [codegen, i.to_string(), '@OUTPUT@'], + output: name + '.c') + i+=1 +endforeach + +shared_library('sharedlib', sources) +static_library('staticlib', sources) +executable('app', 'main.c', sources) + +# Also test short commandlines to make sure that doesn't regress +shared_library('sharedlib0', sources[0]) +static_library('staticlib0', sources[0]) +executable('app0', 'main.c', sources[0]) diff --git a/meson/test cases/common/227 very long commmand line/name_gen.py b/meson/test cases/common/227 very long commmand line/name_gen.py new file mode 100755 index 000000000..84352984a --- /dev/null +++ b/meson/test cases/common/227 very long commmand line/name_gen.py @@ -0,0 +1,23 @@ +#!/usr/bin/env python3 +""" +generate sequence of filename that does not exceed MAX_LEN=260 +for Python < 3.6 and Windows without modified registry +""" + +import sys +import string + +name_len = 260 - len(sys.argv[2]) - 4 - 39 - 4 - 2 +if name_len < 1: + raise ValueError('The meson build directory pathname is so long ' + 'that we cannot generate filenames within 260 characters.') +# leave room for suffix and file separators, and meson generated text +# e.g. ".c.obj.d" and other decorators added by Meson at configuration +# for intermediate files + +base = string.ascii_letters * 5 # 260 characters +max_num_len = len(str(sys.argv[1])) +base = base[: name_len - max_num_len] + +for i in range(int(sys.argv[1])): + print("{base}{i:0{max_num_len}d}".format(base=base, max_num_len=max_num_len, i=i)) |