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__start_SECNAME and __stop_SECNAME symbols are automatically generated by ld for orphan sections, i.e. those not explicitely referenced by a linker script. The symbols are supposed to be placed correspondingly at the start and the end of the section in output file. In some cases __start_SECNAME may be placed at the address after the end of the previous section (if any) and before the start the section. This happens when following conditions are met: 1. the orphan section is found in more than one input file 2. the orphan section has different alignment requirements across input files 3. the first instance of the section encountered doesn't have the greatest alignment requirement In these conditions resulting output section will be placed at address after the end of the previous section aligned to the greatest alignment requirement in the inputs, but __start_SECNAME will be placed at address after the end of the previous section aligned to the alignment requirement of the first input in which the section is encountered. See commit message of r196118 for a concrete example of problems caused by this bug. The fix is to place __start_SECNAME inside the section and use ABSOLUTE directive, rather than placing __start_SECNAME outside the section and trying to guess address alignment. This fix is in line with upstream binutils change/fix made between versions 2.19 and 2.20 in revision of 1.307 ldlang.c. MFC after: 3 weeks |
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| bfd | ||
| binutils | ||
| config | ||
| contrib | ||
| etc | ||
| gas | ||
| gprof | ||
| include | ||
| ld | ||
| libiberty | ||
| opcodes | ||
| ChangeLog | ||
| config-ml.in | ||
| config.guess | ||
| config.if | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| FREEBSD-deletelist | ||
| FREEBSD-upgrade | ||
| FREEBSD-Xlist | ||
| install-sh | ||
| libtool.m4 | ||
| ltcf-c.sh | ||
| ltcf-cxx.sh | ||
| ltcf-gcj.sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| md5.sum | ||
| missing | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| README-maintainer-mode | ||
| symlink-tree | ||
| ylwrap | ||
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.