void-packages/srcpkgs/cbang/patches/0006-Fixes-and-clean-up-of-sizeof-test.patch
Đoàn Trần Công Danh d0dc8de5c9 cbang: correct patch prefix
Fix my own problems :(
2020-06-03 08:11:49 +07:00

169 lines
4.8 KiB
Diff

From d9b5bf87e724bfbbad78fe254e902048f8d7e534 Mon Sep 17 00:00:00 2001
From: Joseph Coffland <joseph@cauldrondevelopment.com>
Date: Mon, 1 Jun 2020 14:55:52 -0700
Subject: [PATCH 6/7] Fixes and clean up of sizeof test
---
src/libevent/SConscript | 115 ++++++++++------------------------------
1 file changed, 28 insertions(+), 87 deletions(-)
diff --git src/libevent/SConscript src/libevent/SConscript
index ab1f72ad..db9884a6 100644
--- src/libevent/SConscript
+++ src/libevent/SConscript
@@ -17,88 +17,25 @@ def CheckSYS_TIMERFD_H(ctx):
conf.AddTest('CheckSYS_TIMERFD_H', CheckSYS_TIMERFD_H)
-# sizeof
-# https://github.com/scons/scons/wiki/AutoconfRecipes#ac_check_sizeof
-# Sensible default for common types on common platforms.
-_DEFAULTS_SIZEOF = {
- 'short' : [2],
- 'int' : [4, 2],
- 'long' : [4, 8],
- 'long long' : [8, 4],
- 'unsigned short' : [2],
- 'unsigned int' : [4, 2],
- 'unsigned long' : [4, 8],
- 'unsigned long long' : [8, 4],
- 'float' : [4],
- 'double' : [8],
- 'long double' : [12],
- 'size_t' : [4, 8],
-}
-
-def CheckSizeOf(ctx, type, includes = None):
- """This check can be used to get the size of a given type,
- or to check whether the type is of expected size.
-
- Arguments:
- - type : str
- the type to check
- - includes : sequence
- list of headers to include in the test code before testing the type
- Returns:
- status : int
- 0 if the check failed, or the found size of the type
- if the check succeeded."""
- minsz = 0
- maxsz = 16
-
+def CheckSizeOf(ctx, type, defaults, includes = None):
src = '''
- #include <sys/types.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <stdint.h>
+ int main() {
+ int a[1 - 2 * (sizeof(%s) != %d)];
+ return a[0] = 0;
+ }
'''
- if includes:
- src += "\n".join("#include <%s>\n" % i for i in includes)
-
- ext = '.c'
- # test code taken from autoconf: this is a pretty clever hack to find that
- # a type is of a given size using only compilation. This speeds things up
- # quite a bit compared to straightforward code using TryRun
- src += r"""
-typedef %s scons_check_type;
-
-int main()
-{
- static int test_array[1 - 2 * ((long int) sizeof(scons_check_type) > %d)];
- test_array[0] = 0;
- return 0;
-}
-"""
+ if includes:
+ src = '\n'.join('#include <%s>' % i for i in includes) + '\n' + src
- # Only check if the given size is the right one
ctx.Message('Checking size of %s ... ' % type)
- # Try sensible defaults first
- try:
- szrange = _DEFAULTS_SIZEOF[type]
- except KeyError:
- szrange = []
- szrange.extend(range(minsz, maxsz))
- st = 0
-
- # Actual test
- for sz in szrange:
- st = ctx.TryCompile(src % (type, sz), ext)
- if st:
- break
-
- if st:
- ctx.Result('%d' % sz)
- return sz
- else:
- ctx.Result('Failed !')
- return 0
+ for sz in defaults + range(1, 16):
+ if ctx.TryCompile(src % (type, sz), '.c'):
+ ctx.Result(str(sz))
+ return sz
+
+ raise Exception('Failed to get the sizeof of ' + type)
conf.AddTest('CheckSizeOf', CheckSizeOf)
@@ -209,7 +146,17 @@ headers = '''arpa/inet.h fcntl.h ifaddrs.h inttypes.h mach/mach_time.h
'''
decls = '''CTL_KERN KERN_ARND KERN_RANDOM RANDOM_UUID'''
structs = 'addrinfo in6_addr sockaddr_in6 sockaddr_storage'
-sizeof = ['int', 'long', 'long long', 'off_t', 'short', 'size_t', 'void *']
+
+sizeof = [
+ ('short', [2], None),
+ ('int', [4, 2], None),
+ ('long', [8, 4], None),
+ ('long long', [8, 4], None),
+ ('void *', [8, 4], None),
+ ('size_t', [8, 4], ['sys/types.h']),
+ ('off_t', [8, 4], ['sys/types.h']),
+ ('pthread_t', [8, 4], ['pthread.h']),
+]
gethostbyname_r_3_arg_src = '''
#ifndef __cplusplus
@@ -284,13 +231,9 @@ def get_event_config_defs():
# Sizes
- for type in sizeof:
- size = conf.CheckSizeOf(type)
- if size:
- defs['SIZEOF_' + to_def(type)] = size
-
- size = conf.CheckSizeOf('pthread_t', ['pthread.h'])
- if size: defs['SIZEOF_PTHREAD_T'] = size
+ for type, defaults, includes in sizeof:
+ size = conf.CheckSizeOf(type, defaults, includes)
+ defs['SIZEOF_' + to_def(type)] = size
# Decls
@@ -380,13 +323,11 @@ def build_function(target, source, env):
f = open(target, 'w')
- f.write('#ifndef EVENT2_EVENT_CONFIG_H_INCLUDED_\n')
- f.write('#define EVENT2_EVENT_CONFIG_H_INCLUDED_\n')
+ f.write('#pragma once\n')
for name, value in sorted(defs.items()):
f.write('#define EVENT__%s %s\n' % (name, value))
- f.write('#endif /* EVENT2_EVENT_CONFIG_H_INCLUDED_ */\n')
f.close()
--
2.27.0.rc1.5.gae92ac8ae3