mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
caf606c90d
My previous nm patch handled all cases but one -- if the user set NM in the environment to a path which contained an option, libtool's nm detection tries to run nm against a copy of nm with the options in it: e.g. if NM was set to "nm --blargle", and nm was found in /usr/bin, the test would try to run "/usr/bin/nm --blargle /usr/bin/nm --blargle". This is unlikely to be desirable: in this case we should run "/usr/bin/nm --blargle /usr/bin/nm". Furthermore, as part of this nm has to detect when the passed-in $NM contains a path, and in that case avoid doing a path search itself. This too was thrown off if an option contained something that looked like a path, e.g. NM="nm -B../prev-gcc"; libtool then tries to run "nm -B../prev-gcc nm" which rarely works well (and indeed it looks to see whether that nm exists, finds it doesn't, and wrongly concludes that nm -p or whatever does not work). Fix all of these by clipping all options (defined as everything including and after the first " -") before deciding whether nm contains a path (but not using the clipped value for anything else), and then removing all options from the path-modified nm before looking to see whether that nm existed. NM=my-nm now does a path search and runs e.g. /usr/bin/my-nm -B /usr/bin/my-nm NM=/usr/bin/my-nm now avoids a path search and runs e.g. /usr/bin/my-nm -B /usr/bin/my-nm NM="my-nm -p../wombat" now does a path search and runs e.g. /usr/bin/my-nm -p../wombat -B /usr/bin/my-nm NM="../prev-binutils/new-nm -B../prev-gcc" now avoids a path search: ../prev-binutils/my-nm -B../prev-gcc -B ../prev-binutils/my-nm This seems to be all combinations, including those used by GCC bootstrap (which, before this commit, fails to bootstrap when configured --with-build-config=bootstrap-lto, because the lto plugin is now using --export-symbols-regex, which requires libtool to find a working nm, while also using -B../prev-gcc to point at the lto plugin associated with the GCC just built.) Regenerate all affected configure scripts. * libtool.m4 (LT_PATH_NM): Handle user-specified NM with options, including options containing paths. |
||
---|---|---|
.. | ||
doc | ||
testsuite | ||
.gitignore | ||
aclocal.m4 | ||
ChangeLog | ||
ChangeLog-2020 | ||
config.h.in | ||
configure | ||
configure.ac | ||
ctf-archive.c | ||
ctf-create.c | ||
ctf-decl.c | ||
ctf-decls.h | ||
ctf-dedup.c | ||
ctf-dump.c | ||
ctf-endian.h | ||
ctf-error.c | ||
ctf-hash.c | ||
ctf-impl.h | ||
ctf-inlines.h | ||
ctf-intl.h | ||
ctf-labels.c | ||
ctf-link.c | ||
ctf-lookup.c | ||
ctf-open-bfd.c | ||
ctf-open.c | ||
ctf-qsort_r.c | ||
ctf-serialize.c | ||
ctf-sha1.c | ||
ctf-sha1.h | ||
ctf-string.c | ||
ctf-subr.c | ||
ctf-types.c | ||
ctf-util.c | ||
elf.h | ||
libctf.ver | ||
Makefile.am | ||
Makefile.in | ||
NEWS | ||
swap.h |