move the build of ldd binary to a subdir in order to allow
explict ordering. This makes "make all" work the same as
"make dependall"

make this actually build on mips64.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

kill ldd_aout. it didn't work anyway...not since i don't know when.

Um, the test for mips should use MACHINE_CPU, not MACHINE_ARCH.

Don't include <a.out.h> unless it's needed, and don't build
the aout subdir if on mips. Fixes build for mips ports.

Enable WARNS=4 by default for usr.bin, except for:
awk bdes checknr compile_et error gss hxtool kgetcred kinit
klist ldd less lex locale login m4 man menuc mk_cmds
mklocale msgc openssl rpcgen rpcinfo sdiff spell ssh
string2key telnet tn3270 verify_krb5_conf xlint

branches: 1.9.2;
- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

branches: 1.7.52;
Move a.out version of ldd(1) to the usr.bin tree; elf and a.out
reside in separate subdirectories (various source moved by
repository copying). Adapt Makefiles to new situation.

don't define WARNS=1 here

CFLAGS->CPPFLAGS, and general cleanup; add WARNS

Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.

Use .PATH.c: ...

Mipsel changes to ELF ldd/ld.so:
* don't abort() on NetBSD/pmax 1.1 elf binaries;
* Assume 32-bit elf unless compiling for Alpha;
* note bugs in ldd's README.

First cut at an elf-aware ldd. Originally from John Polstra's FreeBSD elf
kit, then hacked on by Matt Thomas <matt@3am-software.com>, then by me.
This runs, but it's in serious need of cleaning and/or a fair bit of
reworking. See the README file for more information, and a list of things
to do.

New port: mac68ksf - Macintosh 68k softfloat.

This commit is all the Makefile glue for the new port which is the mac68k
port with MKSOFTFLOAT set to "yes".

As posted here:
https://mail-index.netbsd.org/port-mac68k/2025/10/14/msg001037.html

If earm, include from lib/libexecinfo for unwind.h

branches: 1.2.2;
MIPS uses a variable page size now.
(pulled up from matt-nb5-mips64)

branches: 1.1.2; 1.1.10;
- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

PR 54093: Align static TLS area to max_align_t.

branches: 1.5.28; 1.5.30;
include symver.c

branches: 1.4.4; 1.4.10;
Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.

Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.

branches: 1.3.2;
make sure we set LIBISPRIVATE.

fixes build issues reported by moof.

- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

Handle mipsn64

Define _KERNTYPES for things that need it.

Do not set MLIBDIR if MKCOMPAT=no

branches: 1.5.8;
apply kludge to make this more or less work on mips64 with n32 userland
with this ldd can handle both 64 and n32 binaries ( previously it would do 64
only ), o32 support is still broken
Someone more familiar with this code needs to fix this properly.

branches: 1.4.6; 1.4.12;
make this actually build on mips64.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

Enable WARNS=4 by default for usr.bin, except for:
awk bdes checknr compile_et error gss hxtool kgetcred kinit
klist ldd less lex locale login m4 man menuc mk_cmds
mklocale msgc openssl rpcgen rpcinfo sdiff spell ssh
string2key telnet tn3270 verify_krb5_conf xlint

branches: 1.1.54; 1.1.58;
Move a.out version of ldd(1) to the usr.bin tree; elf and a.out
reside in separate subdirectories (various source moved by
repository copying). Adapt Makefiles to new situation.

Move a.out version of ldd(1) to the usr.bin tree; elf and a.out
reside in separate subdirectories (various source moved by
repository copying). Adapt Makefiles to new situation.

Mipsel changes to ELF ldd/ld.so:
* don't abort() on NetBSD/pmax 1.1 elf binaries;
* Assume 32-bit elf unless compiling for Alpha;
* note bugs in ldd's README.

First cut at an elf-aware ldd. Originally from John Polstra's FreeBSD elf
kit, then hacked on by Matt Thomas <matt@3am-software.com>, then by me.
This runs, but it's in serious need of cleaning and/or a fair bit of
reworking. See the README file for more information, and a list of things
to do.

branches: 1.1.2;
- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

Better wording, s/working path/working directory/
(also minor input reformatting for easier searching)

correct explanation of %a

Minor typo corrected (s/rhe/the/)

Clarify how the main object pathname is set.

ldd(1): brush up markup, g/c more of a.out

Now the only remaining a.out reference is %n.
Ride the date bump.

update %a description (it was wrong before; it was never __progname).

branches: 1.21.4;
ldd(1): add a -v option to display all errors not just the latest.

ldd on a go binary currently fails with an error that basically
says "not elf32 class". this is a true statement, as it is an
elf64 class object, but it's not useful. it happens because
ldd_elf64() is called, fails in _rtld_map_object(), and then
ldd_elf32() is called, and it fails because the class is wrong,
and only this error is returned. (this problem remains. the
call to map the object fails due to there being 3 instead of 2
elf segments in the file. i guess we need similar code in
ld.elf_so/map_objects.c as the kernel gained some time ago.)

perhaps the first error, not the last error, should be used if
everything fails, but this allows all failures to be see and
would be useful even if the error string handling changed.

Return a non-zero (one) exit code on failure for one of the files

But keep on processing them, like ls, rm, and other programs do

Remove workaround for ancient HTML generation code.

New sentence, new line.

Add an -o option that behaves like nm -o. Implementation from a suggestion
by jmcneill (thanks!); ok mrg. Closes PR 41994.

Add missing word and bump date for previous.

kill ldd_aout. it didn't work anyway...not since i don't know when.

Convert TNF licenses to new 2 clause variant

branches: 1.13.26;
Bump the date.

Implement %x for ELF.

\*[Gt] instead of >; sort SEE ALSO.

Document and implement -f for elf objects.

Sort sections, sort SEE ALSO, bump date for last.

PR/3046: Chris G. Demetriou: ldd actually runs target programs.
This is the case only with a.out programs, and the manual page has been
changed to reflect that in the BUGS section. Since most our architectures
have been converted to elf, this is not an issue anymore.

depedencies->dependencies (Igor Sobrado, PR misc/19700) + recognised->recognized

xref ld.elf_so(1)

More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

Assign my copyrights to TNF.

Principally, change foo(N) to .Xr foo N
Also, do some other mdoc tagging.

Add -f option for customized output.

ldd: list shared library dependencies.

avoid printing the latest error message if some ldd method worked.

branches: 1.27.2;
only try the other methods if the previous ones failed.

fixes problem reported by ryoon@

ldd(1): add a -v option to display all errors not just the latest.

ldd on a go binary currently fails with an error that basically
says "not elf32 class". this is a true statement, as it is an
elf64 class object, but it's not useful. it happens because
ldd_elf64() is called, fails in _rtld_map_object(), and then
ldd_elf32() is called, and it fails because the class is wrong,
and only this error is returned. (this problem remains. the
call to map the object fails due to there being 3 instead of 2
elf segments in the file. i guess we need similar code in
ld.elf_so/map_objects.c as the kernel gained some time ago.)

perhaps the first error, not the last error, should be used if
everything fails, but this allows all failures to be see and
would be useful even if the error string handling changed.

gcc hates strncpy()

rtld expects an absolute path in execname provided via AUXV in order to
handle $ORIGIN properly and checks for that. Since we are calling its guts
directly, provide one.

Return a non-zero (one) exit code on failure for one of the files

But keep on processing them, like ls, rm, and other programs do

Use OBJECT_FMTS from <bsd.own.mk> to determine elf32/elf64 needs

apply kludge to make this more or less work on mips64 with n32 userland
with this ldd can handle both 64 and n32 binaries ( previously it would do 64
only ), o32 support is still broken
Someone more familiar with this code needs to fix this properly.

branches: 1.20.2;
Make sure stuff using Obj_Entry is compiled correctly for ELF32 or ELF64.

branches: 1.19.4;
Fix sign compare

Block signals when using the exclusive lock.

Add basic locking to ld.elf_so.

Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.

Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.

Implement dl_iterate_phdr.

Somewhat taken from FreeBSD. Manual page from OpenBSD.

Sync against new ld.elf_so

Mark each object as printed as visited and then print.

Fixes PR/42811.

As a side effect the libraries are printed in, imo, a better order.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

Make _rtld_pagesz of type size_t.

Fixes round_down for alpha which made ldd(1) break.

Add an -o option that behaves like nm -o. Implementation from a suggestion
by jmcneill (thanks!); ok mrg. Closes PR 41994.

kill ldd_aout. it didn't work anyway...not since i don't know when.

Don't try to call the (no longer defined) aout_ldd() function
if we're building for mips.

Don't include <a.out.h> unless it's needed, and don't build
the aout subdir if on mips. Fixes build for mips ports.

catch up with rtld changes

rework the main loop and handlers:
- open() and close() the file in the main loop
- pass the fd down into the handlers
- use _rtld_error() in ELFNAME(ldd)

this fixes PR#40543 and also makes error messages look better.

- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

branches: 1.2.12;
Move a.out version of ldd(1) to the usr.bin tree; elf and a.out
reside in separate subdirectories (various source moved by
repository copying). Adapt Makefiles to new situation.

First cut at an elf-aware ldd. Originally from John Polstra's FreeBSD elf
kit, then hacked on by Matt Thomas <matt@3am-software.com>, then by me.
This runs, but it's in serious need of cleaning and/or a fair bit of
reworking. See the README file for more information, and a list of things
to do.

remove clause 3 from all my licenses that aren't conflicting with
another copyright claim line. again. (i did this in 2008 and then
did not update all of my personal templates.)

rtld expects an absolute path in execname provided via AUXV in order to
handle $ORIGIN properly and checks for that. Since we are calling its guts
directly, provide one.

Make sure stuff using Obj_Entry is compiled correctly for ELF32 or ELF64.

branches: 1.6.6;
make this actually build on mips64.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

Sprinkle a little const. no object diffs

kill ldd_aout. it didn't work anyway...not since i don't know when.

rework the main loop and handlers:
- open() and close() the file in the main loop
- pass the fd down into the handlers
- use _rtld_error() in ELFNAME(ldd)

this fixes PR#40543 and also makes error messages look better.

branches: 1.1.2;
- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

kill ldd_aout. it didn't work anyway...not since i don't know when.

More missing <sys/exec_aout.h>

rework the main loop and handlers:
- open() and close() the file in the main loop
- pass the fd down into the handlers
- use _rtld_error() in ELFNAME(ldd)

this fixes PR#40543 and also makes error messages look better.

branches: 1.2.2;
pull across the struct netbsd32_exec definition and use that in all
cases, since we never did 64 bit a.out. now ldd on 32 bit a.out
at least tries to work, but fails (on sparc or sparc64, no idea yet
for x86) the same way that all dynamic a.out binaries fail.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

rtld expects an absolute path in execname provided via AUXV in order to
handle $ORIGIN properly and checks for that. Since we are calling its guts
directly, provide one.

need <sys/stat.h>

branches: 1.6.14;
Make sure stuff using Obj_Entry is compiled correctly for ELF32 or ELF64.

branches: 1.5.2;
dependant -> dependent

Sprinkle a little const. no object diffs

Don't include <a.out.h> unless it's needed, and don't build
the aout subdir if on mips. Fixes build for mips ports.

rework the main loop and handlers:
- open() and close() the file in the main loop
- pass the fd down into the handlers
- use _rtld_error() in ELFNAME(ldd)

this fixes PR#40543 and also makes error messages look better.

branches: 1.1.2;
- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

Handle mipsn64

don't build ldd64 support if !MKCOMPAT and mips64.

Fix merge botch

Merge the [pgoyette-compat] branch

branches: 1.3.2;
Disable SANITIZER for ldd(1)

These utilities (elf32, elf32_compat, elf64, liblldb) share code with the
ELF dynamic loader that is not being sanitized and its symbols are
installed into sanitized programs (in particular __tls_get_addr()).

Additionally libldd is used in rescue that is not expected to be sanitized
as of today.

branches: 1.2.24;
Use OBJECT_FMTS from <bsd.own.mk> to determine elf32/elf64 needs

branches: 1.1.4; 1.1.10;
move the build of ldd binary to a subdir in order to allow
explict ordering. This makes "make all" work the same as
"make dependall"

Fix merge botch

Merge the [pgoyette-compat] branch

branches: 1.10.2;
Disable SANITIZER for ldd(1)

These utilities (elf32, elf32_compat, elf64, liblldb) share code with the
ELF dynamic loader that is not being sanitized and its symbols are
installed into sanitized programs (in particular __tls_get_addr()).

Additionally libldd is used in rescue that is not expected to be sanitized
as of today.

branches: 1.9.24;
Use OBJECT_FMTS from <bsd.own.mk> to determine elf32/elf64 needs

branches: 1.8.4; 1.8.10;
Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.

Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

Convert more MACHINE tests to MACHINE_ARCH

branches: 1.5.2;
Include "bsd.own.mk" to get the definition of "NETBSDSRCDIR" via
"/etc/mk.conf". This fixes manual use of "make cleandir".

branches: 1.4.2;
need bsd.own.mk for $NETBSDSRCDIR

make sure we set LIBISPRIVATE.

fixes build issues reported by moof.

- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.

Fix merge botch

Merge the [pgoyette-compat] branch

branches: 1.2.2;
Disable SANITIZER for ldd(1)

These utilities (elf32, elf32_compat, elf64, liblldb) share code with the
ELF dynamic loader that is not being sanitized and its symbols are
installed into sanitized programs (in particular __tls_get_addr()).

Additionally libldd is used in rescue that is not expected to be sanitized
as of today.

branches: 1.1.2; 1.1.4; 1.1.48;
- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

Handle mipsn64

don't build ldd64 support if !MKCOMPAT and mips64.

Fix merge botch

Merge the [pgoyette-compat] branch

branches: 1.9.2;
Disable SANITIZER for ldd(1)

These utilities (elf32, elf32_compat, elf64, liblldb) share code with the
ELF dynamic loader that is not being sanitized and its symbols are
installed into sanitized programs (in particular __tls_get_addr()).

Additionally libldd is used in rescue that is not expected to be sanitized
as of today.

branches: 1.8.14;
Fix ldd on LP64 platforms by splitting the symbol versioning stuff for
elf64 as well.

branches: 1.7.4;
Use OBJECT_FMTS from <bsd.own.mk> to determine elf32/elf64 needs

branches: 1.6.4; 1.6.10;
Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.

Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.

- adjust the logic for compat ldd: add an elf32_compat module and arrange
for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)

tested on amd64 and sparc64, and an earlier version tested on mips64.

branches: 1.4.2;
another bsd.own.mk missing

make sure we set LIBISPRIVATE.

fixes build issues reported by moof.

- rework this a bunch to make it work inside /rescue/ldd.
- fix alpha build.

- get rid of building an a.out-happy ldd (but keep supporting a.out
binaries for the ELF version.)

- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().


now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.