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raf
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Joined: 16 Jan 2005
Posts: 158
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 Posted: Tue Jun 07, 2005 1:07 pm Post subject: Update to glibc-2.3.5 broke glibc-2.0 compatibility ?! |
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Hi,
I have a bin-only commercial program which has been compiled with an older version of glibc. In order to get around this, I compiled my glibc-2.3.4 with +nptl -nptlonly flags, this creates a nptl library in /lib/tls/ and linuxthreads library in /lib/ great! Now to run my bin-only program I would execute:
| Code: | | export LD_ASSUME_KERNEL=2.4.19 |
and the application would run without any problems.
Last night I upgraded my system to glibc-2.3.5 and gcc-3.4.4 and this no longer works! My entire system which was re-compiled from source works perfectly, but my bin-only application returns with
| Code: | | symbol errno, version GLIBC_2.0 not defined in file libc.so.6 with link time reference |
irrespective of wheather I run LD_ASSUME_KERNEL or not! Has something changed in the latest glibc-2.3.5 that broke this compatibility? What can I do? I really need this bin-only program!
-Raf |
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raf
Apprentice
Joined: 16 Jan 2005
Posts: 158
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| Posted: Tue Jun 07, 2005 2:23 pm Post subject: More info... |
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It seems the glibc-2.3.5 ebuild is messed up. It does not create a linuxthread version properly:
From a (I believe to be reliable) source:
| Code: | | readelf -s /lib/libc.so.6| grep errno |
When nptl is enabled, libc.so has
| Code: | 343: 00000008 4 TLS GLOBAL DEFAULT 23 errno@@GLIBC_PRIVATE
7802: 00000008 4 TLS GLOBAL DEFAULT 23 errno |
With Linuxthreads, libc.so has
| Code: | 1046: 0012c600 4 OBJECT GLOBAL DEFAULT 27 _errno@GLIBC_2.0
1174: 0012c600 4 OBJECT GLOBAL DEFAULT 27 errno@GLIBC_2.0 |
My new libc-2.3.5.so
| Code: | 276: 000e9853 254 FUNC GLOBAL DEFAULT 11 clnt_perrno@@GLIBC_2.0
291: 00000008 4 TLS GLOBAL DEFAULT 19 errno@@GLIBC_PRIVATE
852: 0000001c 4 TLS GLOBAL DEFAULT 19 h_errno@@GLIBC_PRIVATE
1529: 000dd500 25 FUNC GLOBAL DEFAULT 11 __h_errno_location@@GLIBC_2.0
1843: 000156d0 25 FUNC GLOBAL DEFAULT 11 __errno_location@@GLIBC_2.0
2162: 000e9494 120 FUNC GLOBAL DEFAULT 11 clnt_sperrno@@GLIBC_2.0 |
My old libc-2.3.4.so
| Code: | 274: 000ce6bc 128 FUNC GLOBAL DEFAULT 11 clnt_perrno@@GLIBC_2.0
994: 0010d360 4 OBJECT GLOBAL DEFAULT 29 _errno@GLIBC_2.0
1120: 0010d360 4 OBJECT GLOBAL DEFAULT 29 errno@GLIBC_2.0
1527: 000c3594 40 FUNC GLOBAL DEFAULT 11 __h_errno_location@@GLIBC_2.0
1707: 0010ef70 4 OBJECT GLOBAL DEFAULT 29 h_errno@GLIBC_2.0
1842: 000157a0 40 FUNC GLOBAL DEFAULT 11 __errno_location@@GLIBC_2.0
2108: 0010ef70 4 OBJECT WEAK DEFAULT 29 _h_errno@GLIBC_2.0
2161: 000ce653 105 FUNC GLOBAL DEFAULT 11 clnt_sperrno@@GLIBC_2.0 |
Any thoughts anyone? I just used the +nptl and -nptlonly flags. |
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