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Diffstat (limited to 'FAQ')
| -rw-r--r-- | FAQ | 42 |
1 files changed, 12 insertions, 30 deletions
@@ -236,22 +236,9 @@ a local mirror first. You should always try to use the latest official release. Older versions may not have all the features GNU libc requires. The current releases of -egcs (1.0.3 and 1.1.1) should work with the GNU C library (for powerpc see +gcc (2.95 or newer) should work with the GNU C library (for powerpc see question 1.5; for ARM see question 1.6; for MIPS see question 1.20). -While the GNU CC should be able to compile glibc it is nevertheless adviced -to use EGCS. Comparing the sizes of glibc on Intel compiled with a recent -EGCS and gcc 2.8.1 shows this: - - text data bss dec hex filename - egcs-2.93.10 862897 15944 12824 891665 d9b11 libc.so - gcc-2.8.1 959965 16468 12152 988585 f15a9 libc.so - -Make up your own decision. - -GNU CC versions 2.95 and above are derived from egcs, and they may do even -better. - Please note that gcc 2.95 and 2.95.x cannot compile glibc on Alpha due to problems in the complex float support. @@ -328,19 +315,19 @@ Binutils 2.9.1.0.16 or later is also required. * lots of disk space (~400MB for i?86-linux; more for RISC platforms). * plenty of time. Compiling just the shared and static libraries for - i?86-linux takes approximately 1h on an AMD-K6@225MHz w/ 96MB of RAM, - 45mins on a Celeron@400MHz w/ 128MB, and 55mins on a Alpha@533MHz w/ 256MB. - Multiply this by 1.5 or 2.0 if you build profiling and/or the highly - optimized version as well. For Hurd systems times are much higher. + 35mins on a 2xPIII@550Mhz w/ 512MB RAM. On a 2xUltraSPARC-II@360Mhz + w/ 1GB RAM it takes about 14 minutes. Multiply this by 1.5 or 2.0 + if you build profiling and/or the highly optimized version as well. + For Hurd systems times are much higher. You should avoid compiling in a NFS mounted filesystem. This is very slow. - James Troup <J.J.Troup@comp.brad.ac.uk> reports a compile time of - 45h34m for a full build (shared, static, and profiled) on Atari - Falcon (Motorola 68030 @ 16 Mhz, 14 Mb memory) and Jan Barte - <yann@plato.uni-paderborn.de> reports 22h48m on Atari TT030 - (Motorola 68030 @ 32 Mhz, 34 Mb memory) + James Troup <J.J.Troup@comp.brad.ac.uk> reports a compile time for + an earlier (and smaller!) version of glibc of 45h34m for a full build + (shared, static, and profiled) on Atari Falcon (Motorola 68030 @ 16 Mhz, + 14 Mb memory) and Jan Barte <yann@plato.uni-paderborn.de> reports + 22h48m on Atari TT030 (Motorola 68030 @ 32 Mhz, 34 Mb memory) A full build of the PowerPC library took 1h on a PowerPC 750@400Mhz w/ 64MB of RAM, and about 9h on a 601@60Mhz w/ 72Mb. @@ -373,11 +360,7 @@ to the root of the 2.2 tree and do `make include/linux/version.h'. 1.9. The compiler hangs while building iconvdata modules. What's wrong? -{ZW} This is a problem with old versions of GCC. Initialization of large -static arrays is very slow. The compiler will eventually finish; give it -time. - -The problem is fixed in egcs 1.1. +{} Removed. Does not apply anymore. 1.10. When I run `nm -u libc.so' on the produced library I still @@ -843,8 +826,7 @@ you got with your distribution. glibc 2.x? {AJ} There's only correct support for glibc 2.0.x in gcc 2.7.2.3 or later. -But you should get at least gcc 2.8.1 or egcs 1.1 (or later versions) -instead. +But you should get at least gcc 2.95.2 (or later versions) instead. 2.10. The `gencat' utility cannot process the catalog sources which |