因为学习堆的时候需要glibc2.26以下的版本，决定自己在docker里编译一个glibc2.24，中间遇到一些bug记录如下

.symver on common symbols
编译时报错

/tmp/ccPRCqlU.s: Error: `loc1@GLIBC_2.2.5' can't be versioned to common symbol 'loc1'
/tmp/ccPRCqlU.s: Error: `loc2@GLIBC_2.2.5' can't be versioned to common symbol 'loc2'
/tmp/ccPRCqlU.s: Error: `locs@GLIBC_2.2.5' can't be versioned to common symbol 'locs'

解决方案:https://patchwork.ozlabs.org/patch/780067/
patch

--- a/misc/regexp.c
+++ b/misc/regexp.c
@@ -29,14 +29,15 @@
 
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
 
-/* Define the variables used for the interface.  */
-char *loc1;
-char *loc2;
+/* Define the variables used for the interface.  Avoid .symver on common
+   symbol, which just creates a new common symbol, not an alias.  */
+char *loc1 __attribute__ ((nocommon));
+char *loc2 __attribute__ ((nocommon));
 compat_symbol (libc, loc1, loc1, GLIBC_2_0);
 compat_symbol (libc, loc2, loc2, GLIBC_2_0);
 
 /* Although we do not support the use we define this variable as well.  */
-char *locs;
+char *locs __attribute__ ((nocommon));
 compat_symbol (libc, locs, locs, GLIBC_2_0);

target ‘/root/build/math/e_pow.o’ failed
报错如下：

../sysdeps/ieee754/dbl-64/e_pow.c:469:13: error: ‘<<’ in boolean context, did you mean ‘<’ ? [-Werror=int-in-bool-context]
       if (n << (k - 20))
           ~~^~~~~~~~~~~
../sysdeps/ieee754/dbl-64/e_pow.c:471:17: error: ‘<<’ in boolean context, did you mean ‘<’ ? [-Werror=int-in-bool-context]
       return (n << (k - 21)) ? -1 : 1;
              ~~~^~~~~~~~~~~~
../sysdeps/ieee754/dbl-64/e_pow.c:477:9: error: ‘<<’ in boolean context, did you mean ‘<’ ? [-Werror=int-in-bool-context]
   if (m << (k + 12))
       ~~^~~~~~~~~~~
../sysdeps/ieee754/dbl-64/e_pow.c:479:13: error: ‘<<’ in boolean context, did you mean ‘<’ ? [-Werror=int-in-bool-context]
   return (m << (k + 11)) ? -1 : 1;
          ~~~^~~~~~~~~~~~

解决方案: https://patchwork.ozlabs.org/patch/680578/
patch

diff --git a/sysdeps/ieee754/dbl-64/e_pow.c b/sysdeps/ieee754/dbl-64/e_pow.c
index 663fa39..bd758b5 100644
--- a/!
+++ b/sysdeps/ieee754/dbl-64/e_pow.c
@@ -466,15 +466,15 @@  checkint (double x)
     return (n & 1) ? -1 : 1;	/* odd or even */
   if (k > 20)
     {
-      if (n << (k - 20))
+      if (n << (k - 20) != 0)
 	return 0;		/* if not integer */
-      return (n << (k - 21)) ? -1 : 1;
+      return (n << (k - 21) != 0) ? -1 : 1;
     }
   if (n)
     return 0;			/*if  not integer */
   if (k == 20)
     return (m & 1) ? -1 : 1;
-  if (m << (k + 12))
+  if (m << (k + 12) != 0)
     return 0;
-  return (m << (k + 11)) ? -1 : 1;
+  return (m << (k + 11) != 0) ? -1 : 1;
 }

sunrpc/rpc_parse.c

rpc_parse.c:543:23: error: ‘%d’ directive writing between 1 and 10 bytes into a region of size 7 [-Werror=format-overflow=]
     sprintf (name, "%s%d", ARGNAME, num); /* default name of argument */
                       ^~
rpc_parse.c:543:20: note: directive argument in the range [1, 2147483647]
     sprintf (name, "%s%d", ARGNAME, num); /* default name of argument */
                    ^~~~~~
rpc_parse.c:543:5: note: ‘sprintf’ output between 5 and 14 bytes into a destination of size 10
     sprintf (name, "%s%d", ARGNAME, num); /* default name of argument */
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

解决方案:

--- a/sunrpc/rpc_parse.c
+++ b/sunrpc/rpc_parse.c
@@ -521,7 +521,7 @@ static void
 get_prog_declaration (declaration * dec, defkind dkind, int num /* arg number */ )
 {
   token tok;
-  char name[10];		/* argument name */
+  char name[MAXLINESIZE];		/* argument name */

nis/nss_nisplus/nisplus-alias.c

nss_nisplus/nisplus-alias.c:300:12: error: argument 1 null where non-null expected [-Werror=nonnull]
[ERROR]      nss_nisplus/nisplus-alias.c:303:39: error: '%s' directive argument is null [-Werror=format-truncation=]
[ERROR]      make[3]: *** [/Volumes/OSXElCapitan/Users/mrdekk/casesafe/.build/x86_64-ubuntu16.04-linux-gnu/build/build-libc-final/multilib/nis/nisplus-alias.os] Error 1
[ERROR]      make[3]: *** Waiting for unfinished jobs....
[ERROR]      make[2]: *** [nis/others] Error 2
[ERROR]      make[1]: *** [all] Error 2

解决方案：

diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c
index 7f698b4e6d..509ace1f83 100644
--- a/nis/nss_nisplus/nisplus-alias.c
+++ b/nis/nss_nisplus/nisplus-alias.c
@@ -297,10 +297,10 @@  _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias,
       return NSS_STATUS_UNAVAIL;
     }
 
-  char buf[strlen (name) + 9 + tablename_len];
+  char buf[tablename_len + 9];
   int olderr = errno;
 
-  snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);
+  snprintf (buf, sizeof (buf), "[name=],%s", tablename_val);

build目录缺少/etc/ld.so.conf
解决方案：

cd etc/
touch ld.so.conf

转自:https://blog.wh98.me/2019/03/20/%E7%BC%96%E8%AF%91glibc%E9%81%87%E5%88%B0%E7%9A%84%E9%97%AE%E9%A2%98/
作者:hustcw
参考:
https://blog.csdn.net/qq_40827990/article/details/89295472