NOTE: 作者已弃坑，本文目前仅作为编译QSDK的参考

原先的计划是将QSDK中携带的软件包编译成.ipk文件供大家使用，但QSDK本身带的编译脚本、软件包版本过于老旧，编译过程中容易出现各种奇怪问题。对出错的软件包进行修复（包括从OpenWRT的源码中迁移、集成国内的一些feed）已耗费较多精力，但仍有许多依赖的软件包未处理。鉴于这些工作和该设备本身无任何关联，纯粹的patch+rebuild体力活动，且旧的软件包因缺少功能、兼容性问题、存在漏洞隐患等无太大的使用意义。不建议继续做这种徒劳的事情。感兴趣的玩家可以考虑在现有的OpenWRT分支上迁移增加ipq5018支持。

前一篇文章中讲到了如何开启RAX3000Q的ssh，并且发现其固件正是QSDK，但是并没有妥善解决软件包的问题，这一次我们尝试基于QSDK源码编译我们想要的软件包的ipk文件。

实践过程也是参考了很多网上的关于QSDK的文章。

准备环境

我是在docker容器中构建的，环境是Ubuntu 20.04 （dockerhub上的ubuntu:latest），对于其他发行版如ArchLinux，在编译时可能需要解决宿主机上openssl头文件版本的问题，且本文中提到的patch可能不再适用。

开始之前，还需要安装构建所需的工具，可以参考OpenWrt - Build system setup

对于ubuntu：

sudo apt install build-essential ccache ecj fastjar file g++ gawk \
gettext git java-propose-classpath libelf-dev libncurses5-dev \
libncursesw5-dev libssl-dev python python2.7-dev python3 unzip wget \
python3-distutils python3-setuptools python3-dev rsync subversion \
swig time xsltproc zlib1g-dev 

获取源码

QSDK的源码管理类似于Android和ChromeOS，也基于repo工具，在开始之前需要先安装好repo。

QSDK的manifest文件存放在这个仓库中，只有一个名为release的branch。在之前的分析中知道该路由器Openwrt版本为15.05和kernel版本为4.4，结合QSDK的wiki，我选择了主版本号为11的QSDK的最新的manifest文件：caf_AU_LINUX_QSDK_NHSS.QSDK.11.5.0.6_TARGET_ALL.11.5.0.6.055.xml。

使用如下语句获取源码并初始化

repo init -u git://source.codeaurora.org/quic/cc-qrdk/releases/manifest/qstak -b release -m caf_AU_LINUX_QSDK_NHSS.QSDK.11.5.0.6_TARGET_ALL.11.5.0.6.055.xml
repo sync

请勿选择caf_AU_LINUX_QSDK_NHSS.QSDK.12.0.R9_TARGET_ALL.12.0.09.841.011.xml，测试发现其中的linux版本为5.4，且musl-libc版本与当前固件中的不符。

因为编译环境的问题，编译过程中（尤其是构建toolchain时）会导致很多error产生，在开始之前需要对源码进行一些修改，这些修改多数是增加一些.patch文件，或者是对Makefile的一些改动。

其中大部分改动参考了这篇文章，十分感谢这位作者。

所有的修改共涉及qsdk/和qsdk/qca/feeds/packages/这两个目录，对应的diff如下

• qsdk/

  Click to extend

  diff --git a/toolchain/gcc/patches/5.2.0/999-fix-too-many-template-parameters.patch b/toolchain/gcc/patches/5.2.0/999-fix-too-many-template-parameters.patch
  new file mode 100644
  index 000000000000..cab030714d2b
  --- /dev/null
  +++ b/toolchain/gcc/patches/5.2.0/999-fix-too-many-template-parameters.patch
  @@ -0,0 +1,94 @@
  +From 94801184df727b94bf7b8d64b1f98a22f51325d7 Mon Sep 17 00:00:00 2001
  +From: Elliot Saba <[email protected]>
  +Date: Mon, 22 Apr 2019 19:58:09 -0400
  +Subject: [PATCH] Remove double `tempate <>` declarations in `wide-int.h`
  +
  +This fixes compilation of GCC 5.2.0 with very recent compilers such as
  +GCC 8.3.0, which would otherwise fail with errors such as `error: too
  +many template-parameter-lists`
  +---
  + gcc/wide-int.h | 10 ----------
  + 1 file changed, 10 deletions(-)
  +
  +diff --git a/gcc/wide-int.h b/gcc/wide-int.h
  +index 46f45453c015..9a71c4fea61b 100644
  +--- a/gcc/wide-int.h
  ++++ b/gcc/wide-int.h
  +@@ -365,21 +365,18 @@ namespace wi
  +      inputs.  Note that CONST_PRECISION and VAR_PRECISION cannot be
  +      mixed, in order to give stronger type checking.  When both inputs
  +      are CONST_PRECISION, they must have the same precision.  */
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, FLEXIBLE_PRECISION, FLEXIBLE_PRECISION>
  +   {
  +     typedef widest_int result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, FLEXIBLE_PRECISION, VAR_PRECISION>
  +   {
  +     typedef wide_int result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, FLEXIBLE_PRECISION, CONST_PRECISION>
  +   {
  +@@ -389,14 +386,12 @@ namespace wi
  + 			       <int_traits <T2>::precision> > result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, VAR_PRECISION, FLEXIBLE_PRECISION>
  +   {
  +     typedef wide_int result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, CONST_PRECISION, FLEXIBLE_PRECISION>
  +   {
  +@@ -406,7 +401,6 @@ namespace wi
  + 			       <int_traits <T1>::precision> > result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, CONST_PRECISION, CONST_PRECISION>
  +   {
  +@@ -417,7 +411,6 @@ namespace wi
  + 			       <int_traits <T1>::precision> > result_type;
  +   };
  + 
  +-  template <>
  +   template <typename T1, typename T2>
  +   struct binary_traits <T1, T2, VAR_PRECISION, VAR_PRECISION>
  +   {
  +@@ -881,7 +874,6 @@ generic_wide_int <storage>::dump () const
  + 
  + namespace wi
  + {
  +-  template <>
  +   template <typename storage>
  +   struct int_traits < generic_wide_int <storage> >
  +     : public wi::int_traits <storage>
  +@@ -960,7 +952,6 @@ inline wide_int_ref_storage <SE>::wide_int_ref_storage (const T &x,
  + 
  + namespace wi
  + {
  +-  template <>
  +   template <bool SE>
  +   struct int_traits <wide_int_ref_storage <SE> >
  +   {
  +@@ -1147,7 +1138,6 @@ class GTY(()) fixed_wide_int_storage
  + 
  + namespace wi
  + {
  +-  template <>
  +   template <int N>
  +   struct int_traits < fixed_wide_int_storage <N> >
  +   {
  +
  diff --git a/tools/bison/patches/001-fix-port-gnulib.patch b/tools/bison/patches/001-fix-port-gnulib.patch
  new file mode 100644
  index 000000000000..499d73a2666d
  --- /dev/null
  +++ b/tools/bison/patches/001-fix-port-gnulib.patch
  @@ -0,0 +1,11 @@
  +--- a/lib/fseterr.c  2022-02-10 13:17:52.129083732 +0800
  ++++ b/lib/fseterr.c  2022-02-10 13:23:49.408599169 +0800
  +@@ -29,7 +29,7 @@
  +   /* Most systems provide FILE as a struct and the necessary bitmask in
  +      <stdio.h>, because they need it for implementing getc() and putc() as
  +      fast macros.  */
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   fp->_flags |= _IO_ERR_SEEN;
  + #elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
  +   fp_->_flags |= __SERR;
  diff --git a/tools/e2fsprogs/patches/001-fix-undefined-reference-makedev.patch b/tools/e2fsprogs/patches/001-fix-undefined-reference-makedev.patch
  new file mode 100644
  index 000000000000..2c059b4ea072
  --- /dev/null
  +++ b/tools/e2fsprogs/patches/001-fix-undefined-reference-makedev.patch
  @@ -0,0 +1,9 @@
  +--- a/lib/blkid/devname.c 2021-02-07 16:04:24.190214251 +0800
  ++++ b/lib/blkid/devname.c 2021-02-07 16:03:53.869128549 +0800
  +@@ -37,6 +37,7 @@
  + #include <sys/mkdev.h>
  + #endif
  + #include <time.h>
  ++#include <sys/sysmacros.h>
  + 
  + #include "blkidP.h"
  \ No newline at end of file
  diff --git a/tools/findutils/patches/001-fix-port-gnulib.patch b/tools/findutils/patches/001-fix-port-gnulib.patch
  new file mode 100644
  index 000000000000..f164d776ba24
  --- /dev/null
  +++ b/tools/findutils/patches/001-fix-port-gnulib.patch
  @@ -0,0 +1,33 @@
  +--- a/gnulib/lib/freadahead.c    2008-04-17 01:55:14.000000000 +0200
  ++++ b/gnulib/lib/freadahead.c    2008-04-17 01:54:36.000000000 +0200
  +@@ -22,7 +22,7 @@
  + size_t
  + freadahead (FILE *fp)
  + {
  +-#if defined _IO_ferror_unlocked     /* GNU libc, BeOS */
  ++#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
  +   if (fp->_IO_write_ptr > fp->_IO_write_base)
  +     return 0;
  +   return (fp->_IO_read_end - fp->_IO_read_ptr)
  +--- a/gnulib/lib/freading.c      2008-04-17 01:55:14.000000000 +0200
  ++++ b/gnulib/lib/freading.c      2008-04-17 01:54:36.000000000 +0200
  +@@ -29,7 +29,7 @@
  +   /* Most systems provide FILE as a struct and the necessary bitmask in
  +      <stdio.h>, because they need it for implementing getc() and putc() as
  +      fast macros.  */
  +-#if defined _IO_ferror_unlocked     /* GNU libc, BeOS */
  ++#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
  +   return ((fp->_flags & _IO_NO_WRITES) != 0
  +          || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
  +              && fp->_IO_read_base != NULL));
  +--- a/gnulib/lib/fseeko.c        2008-04-17 01:55:14.000000000 +0200
  ++++ b/gnulib/lib/fseeko.c        2008-04-17 01:54:36.000000000 +0200
  +@@ -39,7 +39,7 @@
  + #endif
  + 
  +   /* These tests are based on fpurge.c.  */
  +-#if defined _IO_ferror_unlocked     /* GNU libc, BeOS */
  ++#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
  +   if (fp->_IO_read_end == fp->_IO_read_ptr
  +       && fp->_IO_write_ptr == fp->_IO_write_base
  +       && fp->_IO_save_base == NULL)
  diff --git a/tools/m4/patches/200-fix-port-gnulib-freadahead.patch b/tools/m4/patches/200-fix-port-gnulib-freadahead.patch
  new file mode 100644
  index 000000000000..9501b4fc7788
  --- /dev/null
  +++ b/tools/m4/patches/200-fix-port-gnulib-freadahead.patch
  @@ -0,0 +1,109 @@
  +diff --git a/lib/fflush.c b/lib/fflush.c
  +index 983ade0ffb..a6edfa105b 100644
  +--- a/lib/fflush.c
  ++++ b/lib/fflush.c
  +@@ -33,7 +33,7 @@
  + #undef fflush
  + 
  + 
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  + 
  + /* Clear the stream's ungetc buffer, preserving the value of ftello (fp).  */
  + static void
  +@@ -72,7 +72,7 @@ clear_ungetc_buffer (FILE *fp)
  + 
  + #endif
  + 
  +-#if ! (defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
  ++#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
  + 
  + # if (defined __sferror || defined __DragonFly__ || defined __ANDROID__) && defined __SNPT
  + /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
  +@@ -148,7 +148,7 @@ rpl_fflush (FILE *stream)
  +   if (stream == NULL || ! freading (stream))
  +     return fflush (stream);
  + 
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  + 
  +   clear_ungetc_buffer_preserving_position (stream);
  + 
  +diff --git a/lib/fpurge.c b/lib/fpurge.c
  +index b1d417c7a2..3aedcc3734 100644
  +--- a/lib/fpurge.c
  ++++ b/lib/fpurge.c
  +@@ -62,7 +62,7 @@ fpurge (FILE *fp)
  +   /* Most systems provide FILE as a struct and the necessary bitmask in
  +      <stdio.h>, because they need it for implementing getc() and putc() as
  +      fast macros.  */
  +-# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   fp->_IO_read_end = fp->_IO_read_ptr;
  +   fp->_IO_write_ptr = fp->_IO_write_base;
  +   /* Avoid memory leak when there is an active ungetc buffer.  */
  +diff --git a/lib/freadahead.c b/lib/freadahead.c
  +index c2ecb5b28a..23ec76ee53 100644
  +--- a/lib/freadahead.c
  ++++ b/lib/freadahead.c
  +@@ -30,7 +30,7 @@ extern size_t __sreadahead (FILE *);
  + size_t
  + freadahead (FILE *fp)
  + {
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   if (fp->_IO_write_ptr > fp->_IO_write_base)
  +     return 0;
  +   return (fp->_IO_read_end - fp->_IO_read_ptr)
  +diff --git a/lib/freading.c b/lib/freading.c
  +index 73c28acddf..c24d0c88ab 100644
  +--- a/lib/freading.c
  ++++ b/lib/freading.c
  +@@ -31,7 +31,7 @@ freading (FILE *fp)
  +   /* Most systems provide FILE as a struct and the necessary bitmask in
  +      <stdio.h>, because they need it for implementing getc() and putc() as
  +      fast macros.  */
  +-# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   return ((fp->_flags & _IO_NO_WRITES) != 0
  +           || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
  +               && fp->_IO_read_base != NULL));
  +diff --git a/lib/fseeko.c b/lib/fseeko.c
  +index 0101ab55f7..193f4e8ce5 100644
  +--- a/lib/fseeko.c
  ++++ b/lib/fseeko.c
  +@@ -47,7 +47,7 @@ fseeko (FILE *fp, off_t offset, int whence)
  + #endif
  + 
  +   /* These tests are based on fpurge.c.  */
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   if (fp->_IO_read_end == fp->_IO_read_ptr
  +       && fp->_IO_write_ptr == fp->_IO_write_base
  +       && fp->_IO_save_base == NULL)
  +@@ -123,7 +123,7 @@ fseeko (FILE *fp, off_t offset, int whence)
  +           return -1;
  +         }
  + 
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +       fp->_flags &= ~_IO_EOF_SEEN;
  +       fp->_offset = pos;
  + #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
  +diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h
  +index 78d896e9f5..05c5752a24 100644
  +--- a/lib/stdio-impl.h
  ++++ b/lib/stdio-impl.h
  +@@ -18,6 +18,12 @@
  +    the same implementation of stdio extension API, except that some fields
  +    have different naming conventions, or their access requires some casts.  */
  + 
  ++/* Glibc 2.28 made _IO_IN_BACKUP private.  For now, work around this
  ++   problem by defining it ourselves.  FIXME: Do not rely on glibc
  ++   internals.  */
  ++#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
  ++# define _IO_IN_BACKUP 0x100
  ++#endif
  + 
  + /* BSD stdio derived implementations.  */
  + 
  diff --git a/tools/make-ext4fs/patches/001-fix-undefined-reference-major-minor.patch b/tools/make-ext4fs/patches/001-fix-undefined-reference-major-minor.patch
  new file mode 100644
  index 000000000000..8ee8929c1416
  --- /dev/null
  +++ b/tools/make-ext4fs/patches/001-fix-undefined-reference-major-minor.patch
  @@ -0,0 +1,9 @@
  +--- a/contents.c        2021-02-07 15:37:31.463251930 +0800
  ++++ b/contents.c        2021-02-07 15:37:03.022743240 +0800
  +@@ -15,6 +15,7 @@
  +  */
  + 
  + #include <sys/stat.h>
  ++#include <sys/sysmacros.h>
  + #include <string.h>
  + #include <stdio.h>
  \ No newline at end of file
  diff --git a/tools/mtd-utils/patches/001-fix-missing-header-file-sys-sysmacros.patch b/tools/mtd-utils/patches/001-fix-missing-header-file-sys-sysmacros.patch
  new file mode 100644
  index 000000000000..d3e586803835
  --- /dev/null
  +++ b/tools/mtd-utils/patches/001-fix-missing-header-file-sys-sysmacros.patch
  @@ -0,0 +1,10 @@
  +--- a/include/common.h  2021-02-07 16:25:50.643801767 +0800
  ++++ b/include/common.h  2021-02-07 16:25:41.139803836 +0800
  +@@ -19,6 +19,7 @@
  + #ifndef __MTD_UTILS_COMMON_H__
  + #define __MTD_UTILS_COMMON_H__
  + 
  ++#include <sys/sysmacros.h>
  + #include <stdbool.h>
  + #include <stdio.h>
  + #include <stdlib.h>
  \ No newline at end of file
  diff --git a/tools/sed/patches/001-fix-port-gnulib.patch b/tools/sed/patches/001-fix-port-gnulib.patch
  new file mode 100644
  index 000000000000..a3fd8709482f
  --- /dev/null
  +++ b/tools/sed/patches/001-fix-port-gnulib.patch
  @@ -0,0 +1,11 @@
  +--- a/lib/fwriting.c     2012-09-13 14:58:19.000000000 +0800
  ++++ b/lib/fwriting.c     2022-02-10 13:28:31.221698961 +0800
  +@@ -27,7 +27,7 @@
  +   /* Most systems provide FILE as a struct and the necessary bitmask in
  +      <stdio.h>, because they need it for implementing getc() and putc() as
  +      fast macros.  */
  +-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  ++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
  +   return (fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) != 0;
  + #elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
  +   return (fp_->_flags & __SWR) != 0;
  diff --git a/tools/squashfs4/Makefile b/tools/squashfs4/Makefile
  index 50b70fbe1c90..fe292de0960b 100644
  --- a/tools/squashfs4/Makefile
  +++ b/tools/squashfs4/Makefile
  @@ -24,7 +24,7 @@ define Host/Compile
   		XZ_SUPPORT=1 \
   		LZMA_XZ_SUPPORT=1 \
   		XATTR_SUPPORT= \
  -		LZMA_LIB="$(STAGING_DIR_HOST)/lib/liblzma.a" \
  +		LZMA_LIB="$(STAGING_DIR_HOST)/lib/liblzma.a -lmd" \
   		EXTRA_CFLAGS="-I$(STAGING_DIR_HOST)/include" \
   		mksquashfs unsquashfs
   endef
  diff --git a/tools/squashfs4/patches/001-fix-undefined-reference-major.patch b/tools/squashfs4/patches/001-fix-undefined-reference-major.patch
  new file mode 100644
  index 000000000000..89b065d95bff
  --- /dev/null
  +++ b/tools/squashfs4/patches/001-fix-undefined-reference-major.patch
  @@ -0,0 +1,20 @@
  +--- a/squashfs-tools/mksquashfs.c       2021-02-08 10:08:42.135709202 +0800
  ++++ b/squashfs-tools/mksquashfs.c       2021-02-08 10:09:03.263649419 +0800
  +@@ -52,6 +52,7 @@
  + #include <regex.h>
  + #include <fnmatch.h>
  + #include <sys/wait.h>
  ++#include <sys/sysmacros.h>
  + 
  + #ifndef linux
  + #ifndef __CYGWIN__
  +--- a/squashfs-tools/unsquashfs.c       2021-02-08 10:08:48.335691509 +0800
  ++++ b/squashfs-tools/unsquashfs.c       2021-02-08 10:09:24.919589603 +0800
  +@@ -30,6 +30,7 @@
  + #include "xattr.h"
  + 
  + #include <sys/types.h>
  ++#include <sys/sysmacros.h>
  + 
  + struct cache *fragment_cache, *data_cache;
  + struct queue *to_reader, *to_deflate, *to_writer, *from_writer;
  \ No newline at end of file
  

• qsdk/qca/feeds/packages/

  Click to extend

  diff --git a/libs/libgpg-error/patches/020-gawk5-support.patch b/libs/libgpg-error/patches/020-gawk5-support.patch
  new file mode 100644
  index 0000000000..218d097498
  --- /dev/null
  +++ b/libs/libgpg-error/patches/020-gawk5-support.patch
  @@ -0,0 +1,124 @@
  +--- a/lang/cl/mkerrcodes.awk
  ++++ b/lang/cl/mkerrcodes.awk
  +@@ -122,7 +122,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +--- a/src/Makefile.am
  ++++ b/src/Makefile.am
  +@@ -293,7 +293,7 @@ code-from-errno.h: mkerrcodes$(EXEEXT_FOR_BUILD) Makefile
  + 
  + errnos-sym.h: Makefile mkstrtable.awk errnos.in
  + 	$(AWK) -f $(srcdir)/mkstrtable.awk -v textidx=2 -v nogettext=1 \
  +-		-v prefix=GPG_ERR_ -v namespace=errnos_ \
  ++		-v prefix=GPG_ERR_ -v pkg_namespace=errnos_ \
  + 		$(srcdir)/errnos.in >$@
  + 
  + 
  +--- a/src/Makefile.in	2022-02-10 19:51:36.848145191 +0800
  ++++ b/src/Makefile.in	2022-02-10 20:04:18.368259432 +0800
  +@@ -1018,7 +1018,7 @@
  + 
  + errnos-sym.h: Makefile mkstrtable.awk errnos.in
  + 	$(AWK) -f $(srcdir)/mkstrtable.awk -v textidx=2 -v nogettext=1 \
  +-		-v prefix=GPG_ERR_ -v namespace=errnos_ \
  ++		-v prefix=GPG_ERR_ -v pkg_namespace=errnos_ \
  + 		$(srcdir)/errnos.in >$@
  + 
  + # We depend on versioninfo.rc because that is build by config.status
  +--- a/src/mkerrcodes.awk
  ++++ b/src/mkerrcodes.awk
  +@@ -85,7 +85,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +--- a/src/mkerrcodes1.awk
  ++++ b/src/mkerrcodes1.awk
  +@@ -81,7 +81,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +--- a/src/mkerrcodes2.awk
  ++++ b/src/mkerrcodes2.awk
  +@@ -91,7 +91,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +--- a/src/mkerrnos.awk
  ++++ b/src/mkerrnos.awk
  +@@ -83,7 +83,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +--- a/src/mkstrtable.awk
  ++++ b/src/mkstrtable.awk
  +@@ -77,7 +77,7 @@
  + #
  + # The variable prefix can be used to prepend a string to each message.
  + #
  +-# The variable namespace can be used to prepend a string to each
  ++# The variable pkg_namespace can be used to prepend a string to each
  + # variable and macro name.
  + 
  + BEGIN {
  +@@ -102,7 +102,7 @@ header {
  +       print "/* The purpose of this complex string table is to produce";
  +       print "   optimal code with a minimum of relocations.  */";
  +       print "";
  +-      print "static const char " namespace "msgstr[] = ";
  ++      print "static const char " pkg_namespace "msgstr[] = ";
  +       header = 0;
  +     }
  +   else
  +@@ -110,7 +110,7 @@ header {
  + }
  + 
  + !header {
  +-  sub (/\#.+/, "");
  ++  sub (/#.+/, "");
  +   sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
  + 
  +   if (/^$/)
  +@@ -150,7 +150,7 @@ END {
  +   else
  +     print "  gettext_noop (\"" last_msgstr "\");";
  +   print "";
  +-  print "static const int " namespace "msgidx[] =";
  ++  print "static const int " pkg_namespace "msgidx[] =";
  +   print "  {";
  +   for (i = 0; i < coded_msgs; i++)
  +     print "    " pos[i] ",";
  +@@ -158,7 +158,7 @@ END {
  +   print "  };";
  +   print "";
  +   print "static GPG_ERR_INLINE int";
  +-  print namespace "msgidxof (int code)";
  ++  print pkg_namespace "msgidxof (int code)";
  +   print "{";
  +   print "  return (0 ? 0";
  + 
  

编译

编译前的准备

首先进入qsdk源码目录，其中的目录布局和openwrt非常接近

cd qsdk

在配置之前将feeds中的软件包添加进来：

./scripts/feeds update -a
./scripts/feeds install -a
make package/symlinks

实际上是根据feeds.conf更新feeds，然后在./packages/feeds/目录里面创建到./feeds/*中的feeds包的软链接，在这一步之后才能看见更多的软件包

配置QSDK

使用默认的配置作为.config

cp qca/configs/qsdk/ipq_open.config .config

接着使用菜单配置：

make menuconfig

RAX3000Q自带的固件是32bit的，因此我们这里target选IPQ，subtarget选IPQ50xx(32bit)，在Boot Loaders里面把ipq50xx之外的其它其它芯片组的全部取消选中。

接着直接保存为.config。

在现有的.config中添加默认配置：

make defconfig

接着可以进行一些个性化配置，或者备份对.config文件所作的修改，我直接跳过了：

make kernel_menuconfig # 配置内核，可选
make menuconfig # 再次配置，可选
scripts/diffconfig.sh > mydiffconfig # 备份修改到文件mydiffconfig，可选

编译

• 预下载源码

  为了提高编译效率，先下载所有依赖，并激活多线程编译（Openwrt官网这么说的，也不知道对多线程到底有没有影响）

  make download
  

  • download阶段注意：
    • 禁用luci-app-store：Makefile里的内容太新了，不适合旧版本的openwrt（懒得改了
    • 禁用nss模块，因为
      • 这里禁用QTI software > Network Devices里面的qca-nss-fw-mp-enterprise 和qca-nss-fw-mp-retail
    • lua-bencode作者跑路，改用这里的tar.gz文件
    • 下载vpnc包时，遇到svn: E230001: Server SSL certificate verification failed: issuer is not trusted
      • 解决方法：运行svn ls https://svn.unix-ag.uni-kl.de/vpnc/trunk，会询问你是否信任该证书，选择(p)ermanently永远记住。
      • 如果是curl: (60) SSL certificate problem: unable to get local issuer certificate
        • 则是因为网站配置错误，系统缺少根证书，ubuntu上的解决方法是：
        • 执行openssl s_client -connect svn.unix-ag.uni-kl.de:443 -CApath /etc/ssl/certs获得网站的证书，拷贝从-----BEGIN CERTIFICATE-----到-----END CERTIFICATE-----的内容（包含）放到/usr/local/share/ca-certificates/里的一个单独的文件里，随便名字，以.crt结尾即可。
        • 执行update-ca-certificates
        • 随后curl https://svn.unix-ag.uni-kl.de/vpnc/trunk/就变得正常了
    • 取消batmand包，因为源码从svn变成git了，太麻烦
      • 或者照这个改

• 构建toolchain

  正式编译之前要先编译toolchain，这一步中会因为编译环境的问题导致很多error产生，因此我们需要先打一些patch的

  make toolchain/install -j V=s
  

• 配置软件包

  选择构建所有软件包包括kmod的ipk文件，你需要移除当前的.config文件并重新生成它。请放心，这不会导致你需要重新编译toolchain。

  具体来说，在你用新的.config文件第一次运行make menuconfig时，增加如下操作：

  在Global build settings下选中：

  [*] Select all kernel module packages by default
  [*] Select all userspace packages by default
  

  然后你会发现你的.confg里的CONFIG_PACKAGE_xxxxxx之类的选项的值全部（我这里有4150个）变成了m，这说明选中了所有的软件包。

  然后使用make defconfig追加剩余的默认配置

• 编译内核

  在编译所有软件包之前，你可能需要提前编译内核：

  make target/linux/compile -j V=s # 编译内核源码和kmod
  make package/kernel/linux/compile -j V=s # 打包
  make package/kernel/linux/install -j V=s # 安装到bin/
  

  编译阶段

  • 可以添加这个，不然会在编译内核时询问你
    • # CONFIG_KERNEL_USB_CONFIGFS_F_UVC is not set

  打包阶段

  • dma-shared-buffer.ko问题

    ERROR: module '/qsdk/qsdk/build_dir/target-arm_cortex-a7_musl-1.1.16_eabi/linux-ipq_ipq50xx/linux-4.4.60/drivers/dma-buf/dma-shared-buffer.ko' is missing.
    

    其实在编译内核的时候有警告过.config:1228:warning: symbol value 'm' invalid for DMA_SHARED_BUFFER

    这是在打包kmod-dma-buf时出现的，我们简单禁用这个包及依赖它的包

    • kmod-video-core

  • 禁用以下模块，原因类似

    • kmod-usb-dwc2
    • kmod-iio-core

  • 注意会有很多的generating empty package警告，我们需要安装时检查以清除这些无用的包

• 编译软件包

  make package/compile -j3 V=s
  

  • 禁用以下编译失败的包：

    • ath10k-firmware-qca99x0
    • kmod-r8125
    • kmod-r8168
    • tcpping
    • quickstart：没有arm版本提供
    • bwm-ng：undefined reference to `get_iface_stats'
    • pthsem：不支持musl
      • 及其依赖：knxd、knxd-tools、linknx
    • libnfc：及其依赖nfc-utils
    • opencv
    • tgt
    • b43legacy-firmware
    • kmod-usb-gzero
    • perl-www-curl
    • kmod-usb-f_ss_lb
    • batman-adv：已替换成这里的源码
    • coova-chilli
    • avrdude
    • alsa-plugins系列：
      • alsa-plugins-full
      • alsa-plugins-oss
      • alsa-plugins-speex
    • aiccu
    • openswan
    • kmod-openswan
    • tcsh
    • amule
      • luci-app-amule
      • antileech
    • …

  • 暂时禁用的：

    • luci-app-poweroffdevice
    • naiveproxy
    • snmpd-static

  • 有问题的：

    • xinetd：

      ../../include/config.h:126:21: error: 'long long long' is too long for GCC
       #define rlim_t long long
                           ^
      

    • zile

    • thc-ipv6

    • js-deps：npm: Command not found

      apt install npm
      

    • lua-maxminddb：

      fatal error: maxminddb.h: No such file or directory
      

      apt install libmaxminddb-dev
      

    • mjpg-streamer

    • privoxy

    • flashrom

  • 为了编译一些常见软件包（aliyun webdav之类的），需要增减构建一个叫upx的工具

    • 在tools/Makefile添加

      tools-y += upx
      

  • 编译etherwake出现error: redefinition of struct ethhdr

    • 参考musl-libc文档，解决办法是给etherwake打patch去除掉#include <linux/if_ether.h>

  接着使用下面的命令编译：

  make -j V=s IGNORE_ERRORS=m
  

  IGNORE_ERRORS=m的作用的跳过某些编译错误的软件包。千万不要使用-i来跳过，这会使得最终的ipk文件中缺少文件

  从官网安装go而非apt上的老版本

• 只构建特定软件包

  首先需要在make menuconfig中勾选该软件包，以firewall为例

  make package/network/config/firewall/compile V=s
  

  产物在./bin/ipq/packages/base/firewall_2015-07-27_ipq.ipk

• 全盘编译

  make -j V=s
  

  产生的完整img文件在./bin/ipq/下。

  但是我没有尝试过将其刷入因此不保证不会刷坏！！！！！！

编译失败的排错

这篇文章里已经涵盖了很多在ubuntu20.04环境中编译时可能遇到的问题，但我在编译这一版本的QSDK时还遇到了额外的问题。所有对QSDK所需的修改已经在文章开头的diff文件中涵盖了，这里只是列出信息有助于排错：

• u-boot的编译依赖于libssl1.0-dev：

  系统的libssl-dev版本太新了，需要更换为libssl1.0-dev

• 编译squashfs4时遇到undefined reference to `SHA256Init’：

  /usr/bin/ld: /qsdk/qsdk/staging_dir/host/lib/liblzma.a(liblzma_la-check.o): in function `lzma_check_init':
  check.c:(.text+0x75): undefined reference to `SHA256Init'
  /usr/bin/ld: /qsdk/qsdk/staging_dir/host/lib/liblzma.a(liblzma_la-check.o): in function `lzma_check_update':
  check.c:(.text+0xbf): undefined reference to `SHA256Update'
  /usr/bin/ld: /qsdk/qsdk/staging_dir/host/lib/liblzma.a(liblzma_la-check.o): in function `lzma_check_finish':
  check.c:(.text+0x115): undefined reference to `SHA256Final'
  collect2: error: ld returned 1 exit status
  

  参考这个链接可以了解到，这是因为宿主环境中提供SHA256Init这个函数的库改为了libmd.a，需要修改tools/squashfs4/Makefile，加上链接器选项-lmd

  --- a/tools/squashfs4/Makefile
  +++ b/tools/squashfs4/Makefile
  @@ -24,7 +24,7 @@ define Host/Compile
   		XZ_SUPPORT=1 \
   		LZMA_XZ_SUPPORT=1 \
   		XATTR_SUPPORT= \
  -		LZMA_LIB="$(STAGING_DIR_HOST)/lib/liblzma.a" \
  +		LZMA_LIB="$(STAGING_DIR_HOST)/lib/liblzma.a -lmd" \
   		EXTRA_CFLAGS="-I$(STAGING_DIR_HOST)/include" \
   		mksquashfs unsquashfs
   endef
  

• 编译gcc-5.2.0时报gcc-5.2.0/gcc/wide-int.h:370:10: error: too many template-parameter-lists

  修复办法参考这里

• 编译libgpg-error时出现gawk和namespace相关的错误信息

  是因为宿主机器使用的gawk5.0版本过新，修复方法参考这个patch

引用

• 下载安装基于 openwrt 的 QSDK - LITREILY

• 基于 IPQ807x 编译 QSDK - LITREILY

• 为 SONY MANOMA NCP-HG100 构建 Dropbear（SSH 服务器）