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author | Andrew Hsieh <andrewhsieh@google.com> | 2014-06-13 12:38:00 -0700 |
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committer | Andrew Hsieh <andrewhsieh@google.com> | 2014-06-13 12:38:00 -0700 |
commit | 54f1b3cf509cd889905287cb8ce6c5ae33911a21 (patch) | |
tree | e39b1a7fa04db86a8215b7f9d4656d74e394aec0 /binutils-2.25/ld/README | |
parent | 2a6558a8ecfb81d75215b4ec7dc61113e12cfd5f (diff) | |
download | toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.zip toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.tar.gz toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.tar.bz2 |
Add upstream binutils-2.25 snapshot 4/4 2014
For MIPS -mmsa support
Change-Id: I08c4f002fa7b33dec85ed75956e6ab551bb03c96
Diffstat (limited to 'binutils-2.25/ld/README')
-rw-r--r-- | binutils-2.25/ld/README | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/binutils-2.25/ld/README b/binutils-2.25/ld/README new file mode 100644 index 0000000..64fc2cb --- /dev/null +++ b/binutils-2.25/ld/README @@ -0,0 +1,73 @@ + README for LD + +This is the GNU linker. It is distributed with other "binary +utilities" which should be in ../binutils. See ../binutils/README for +more general notes, including where to send bug reports. + +There are many features of the linker: + +* The linker uses a Binary File Descriptor library (../bfd) + that it uses to read and write object files. This helps + insulate the linker itself from the format of object files. + +* The linker supports a number of different object file + formats. It can even handle multiple formats at once: + Read two input formats and write a third. + +* The linker can be configured for cross-linking. + +* The linker supports a control language. + +* There is a user manual (ld.texinfo), as well as the + beginnings of an internals manual (ldint.texinfo). + +Installation +============ + +See ../binutils/README. + +If you want to make a cross-linker, you may want to specify +a different search path of -lfoo libraries than the default. +You can do this by setting the LIB_PATH variable in ./Makefile +or using the --with-lib-path configure switch. + +To build just the linker, make the target all-ld from the top level +directory (one directory above this one). + +Porting to a new target +======================= + +See the ldint.texinfo manual. + +Reporting bugs etc +=========================== + +See ../binutils/README. + +Known problems +============== + +The Solaris linker normally exports all dynamic symbols from an +executable. The GNU linker does not do this by default. This is +because the GNU linker tries to present the same interface for all +similar targets (in this case, all native ELF targets). This does not +matter for normal programs, but it can make a difference for programs +which try to dlopen an executable, such as PERL or Tcl. You can make +the GNU linker export all dynamic symbols with the -E or +--export-dynamic command line option. + +HP/UX 9.01 has a shell bug that causes the linker scripts to be +generated incorrectly. The symptom of this appears to be "fatal error +- scanner input buffer overflow" error messages. There are various +workarounds to this: + * Build and install bash, and build with "make SHELL=bash". + * Update to a version of HP/UX with a working shell (e.g., 9.05). + * Replace "(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc)" in + genscripts.sh with "sh ${srcdir}..." (no parens) and make sure the + emulparams script used exports any shell variables it sets. + +Copyright (C) 2012 Free Software Foundation, Inc. + +Copying and distribution of this file, with or without modification, +are permitted in any medium without royalty provided the copyright +notice and this notice are preserved. |