DMSETUP/build.txt

   1 Build a static linked, small dmsetup tool
   2
   3 ======== Source Code ========
   4 use an old version of dmsetup
   5 xxx/centos-vault/5.3/os/SRPMS/device-mapper-1.02.28-2.el5.src.rpm
   6
   7 ======== Build Envrioment ========
   8 build for 32bit, static linked with dietlibc
   9 1. install centos 6.10 i386 with CentOS-6.10-i386-bin-DVD1.iso
  10 2. yum install gcc kernel-devel package
  11 3. install dietc libc (just make && make install)
  12 4. export PATH=$PATH:/opt/diet/bin
  13
  14 ======== Build Step ========
  15 1. extract device mapper source code
  16 2. CC="diet gcc" ./configure --disable-nls  --disable-selinux --disable-shared
  17 3. modify include/configure.h file
  18    --- delete the line with "#define malloc rpl_malloc"
  19    --- add 2 defines as follow:
  20        #ifndef UINT32_MAX
  21        #define UINT32_MAX  (4294967295U)
  22        #endif
  23
  24        #ifndef UINT64_C
  25        #define UINT64_C(c) c ## ULL
  26        #endif
  27
  28 4. make
  29 5. strip dmsetup/dmsetup
  30 5. get dmsetup/dmsetup as the binary file