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Make rule that announces and makes static libc archive can generate
command line that is too long when a full path O= option is used. That
breaks the build with the following message:
make: /bin/sh: Argument list too long
Use make $(file) construct to generate file list file and use that file
as $(AR) argument instead.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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While compiling OpenADK I discovered that
there may be a case where UCLIBC_EXTRA_LDFLAGS
contains `-fpie -pie`. Linker ignores `-shared`
if `-pie` flag is passed after and produces
an executable binary instead of shared object.
This leads to linking failure because `ld-uClibc.so.1`
becomes executable instead of shared object.
`ld-uClibc.so.1` is used as one of the inputs
when linking of libc.so.1 and linking proccess fails.
To prevent this issue we need to pass extra `-shared` flag
in `link.so` target command after all other flags to overwrite
`-pie` effect.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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The Linux kernels ELF-FDPIC binfmt program loader can support loading and
running conventional ELF format binaries on noMMU kernels when compiled
appropriately. That is when they are constant displacement binaries such
as generated using the -pie compile option.
Add a configure option to allow selecting ELF binary support in noMMU
mode configurations on architectures that support this. The main
requirement is to generate the ldso run-time loader to perform relocation
at load time. These configurations do not support shared libraries, so
there is no need to generate a full shared library, only the static
version is required.
The use of ELF format binaries does mean a slightly simpler toolchain
generation (does not require a -uclinux- for some architectures) and does
not require an extra tool like elf2flt.
This initial support targets M68K, ARM and RISC-V architectures. No kernel
changes are required, the required support for this is already in mainline
kernels (certainly as of linux-6.6).
Note that for the M68K and ARM architectures that the initialized
registers and stack layout at process startup is slightly different for
the flat format loader and the ELF/ELF-FDPIC loaders. So we need some
changes to the startup code (crt1.S) for them.
I have not done extensive testing outside of M68K, ARM and RISC-V.
I had to make changes to a couple of the dl-startup.h architecture files
to get them to build for this noMMU case. I did not dig down too deep on
the reasons, but they still seem ok for the MMU case as well.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
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on i386, x86_64, and arm.
This patch adds the generation of rcrt1.o which is used by gcc when compiling with the --static-pie flag.
rcrt1.o differs from crt1.o and Scrt1.o in that it the executable has a dynamic section but no relocations have been performed prior to _start being called.
crt1.o assumes there to be no dynamic relocations, and Scrt1.o has all relocations performed prior to execution by lsdo.
The new reloc_static_pie function handles parsing the dynamic section, and performing the relocations in a architecture agnostic method.
It also sets _dl_load_base which is used when initalizing TLS to ensure loading from the proper location.
This allows for easier porting of static-pie support to additional architectures as only modifications to crt1.S to find the load address are required.
Signed-off-by: linted <linted@users.noreply.github.com>
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These adds the stubs from gettext-tiny 0.0.5
from here:
https://github.com/sabotage-linux/gettext-tiny
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To use it enable UCLIBC_HAS_LIBICONV, then iconv_open/iconv_close
should be available.
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As __UCLIBC_HAS_GETTEXT_AWARENESS__ is never defined, this is
mostly dead code. It is planned to integrate libiconv-tiny
and gettext-tiny into uClibc-ng after the next release, so
that more software packages can be used without modification.
Remove any _/_N macro usage.
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The test suite is now a developed in a separate git repository.
See here:
http://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng-test.git
The test suite should be just like every other software compiled
with the cross-toolchain. In the past strange problems where found
when the test suite got build in the toolchain creation step.
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A single test with targeting ARM showed that this feature
seems bit rotted. Remove DOMULTI and simplify Makefiles.
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Argp is an advanced support for parsing unix-style argument vectors.
In addition to the common getopt interface, it provides automatic
response
to `--help' and `--version' options and use of custom parser in
conjunction
with argp native option parser, among others.
Argp support is required by elfutils package and prelink.
In uClibc argp functionalities has been moved from C library to
libuargp.so
Further the libc.so linker script contains an AS_NEEDED entry so that
it doesn't need to link libuargp.so explicitely.
Disable argp test if feature disabled.
Signed-off-by: Salvatore Cro <salvatore.cro@st.com>
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Get rid of NIOS support. We try to support NIOSII.
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Previously V=1 did print abbreviated commands and V=2 the full commands.
Kbuild-based build-systems behave in the opposite way and this is
apparently confusing or inconvenient for users so swap our V handling to
be in line with kbuild (and automake as far as V=0 / V=1 is concerned).
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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The nostartfiles is redundant but better be safe
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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No need to build crt when just generating headers
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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We were not passing the correct use-ld and -m{32,64,...} when creating
the linker script. Revisit for gold later on anyway.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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In file included from ldso/ldso/ldso.c:87:0:
ldso/ldso/dl-startup.c: In function '_dl_start':
ldso/ldso/dl-startup.c:184:32: warning: cast from pointer to integer of differennt size [-Wpointer-to-int-cast]
auxvt[AT_BASE].a_un.a_val = (Elf32_Addr) &_begin;
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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41537a770b46f2376e74af58ba4885749339e81e erroneously stripped the
top_builddir off the per-directory flag setting which works fine for
in-tree builds but is not correct for O=
Just use the full path of the target files to apply the flags to fix
that thinko.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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define NOT_IN_libc / IS_IN_libxxx appropriately
to fix pthread_once
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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filter out all -std=
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Peter Mazinger says in [1]:
"I can revert it to the old behaviour in master (the change s://:/: should stay though)."
[1] http://lists.uclibc.org/pipermail/uclibc/2011-March/045049.html
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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This reverts commit 5dffed7dd1a413f3965af702fa7ecd79809d1988.
This breaks ldd when HARDWIRED_ABSPATH=n.
[1] http://lists.uclibc.org/pipermail/uclibc/2011-March/045048.html
From: Timo Teräs <timo.teras@iki.fi>
Your commit 5dffed7dd1a413f3965af702fa7ecd79809d1988 removed absolute
path from the interpreter binary name embedded in ELF files.
This makes ldd seg.fault as it seems to assume absolute paths.
gdb sayeth:
(gdb) where
#0 0x00111ae3 in find_elf_interpreter (ehdr=0xb7a74000) at
../utils/ldd.c:556
#1 0x00111f2a in find_dependencies (filename=0x114910
"/home/fabled/aports/main/libc0.9.32/src/uClibc-0.9.32-rc3/lib/librt.so.0.9.32")
at ../utils/ldd.c:676
#2 0x0011228e in main (argc=1, argv=0xbffff6e8) at ../utils/ldd.c:777
(gdb) p tmp
tmp = NULL
(gdb) p interp_dir
$1 = 0x116660 "ld-uClibc.so.0.9.32"
[2] http://lists.uclibc.org/pipermail/uclibc/2011-March/045054.html
From: Mike Frysinger <vapier@gentoo.org>
On Wed, Mar 23, 2011 at 7:18 AM, Peter Mazinger wrote:
>> Your commit 5dffed7dd1a413f3965af702fa7ecd79809d1988 removed absolute
>> path from the interpreter binary name embedded in ELF files.
>
> do you consider my patch wrong?
yes. the absolute path to the ldso must be encoded in binaries. the
point of HARDWIRED_ABSPATH is purely for sysroot/non-sysroot
toolchain, and the interp path isnt involved with that.
are you sure this even works at runtime ? i'm pretty sure the kernel
doesnt do any path lookups on the interp string.
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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The MAKEFLAGS variable contains all the flags without the leading dash.
From the GNU make manual:
This variable is set up automatically by make to contain the flag
letters that make received. Thus, if you do ‘make -ks’ then MAKEFLAGS
gets the value ‘ks’.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Running `make clean` atm takes like 20 seconds because every subdir
re-evaluates all the toolchain flags. Add some helpers to automate
the process of setting up variables to cache the result of tests,
as well as the checking of an already set flag.
Now `make clean` takes like 2 seconds on my system.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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* origin/master: (61 commits)
fts: fix warning due to old-style function definition
ldso_tls: fix compiler warning due to missing cast
resolv: fix bug in res_init with ipv6 nameservers
config: Fix passing defconfig args
buildsys: pt-initfini.s depends on uClibc_config.h
libdl: search for ELF_RTYPE_CLASS_DLSYM in dlsym()
resolv: try next server on SERVFAIL
getaddrinfo: allow numeric service without any hints
bump version to 0.9.33-git
nptl/pthread: Correct path for machine specific pt-initfini.c
ctor/dtor nptl: Fix init and fini function compilation
Rules.mak: Rearrange appending UCLIBC_EXTRA_CFLAGS to CFLAGS
ARM: remove EABI/OABI selection
ARM: detect BX availibility at build time
ARM: #include <bits/arm_asm.h> where __USE_BX__ is used
ARM: transform the EABI/OABI choice into a boolean
ARM: remove sub-arch/variants selection from menuconfig
ARM: introduce blind options to select & force THUMB mode
ARM: reorder "Use BX" option
Fix __libc_epoll_pwait compile failure on x86
...
Conflicts:
ldso/libdl/libdl.c
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Rename EXTRA_CPPFLAGS to UCLIBC_EXTRA_CPPFLAGS and make them override
previous flags (by appending - not prepending - them to the other flags).
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* origin/master: (137 commits)
utils/ldd: Check for returned pointer from strrchr not the value it holds
cris: add provide arch-specific vfork implementation
lutimes.c, stubs.c: fix compiling lutimes, if __NR_utimensat is not defined
bump version to 0.9.32-rc3-git
release 0.9.32-rc3
memalign: include sys/param.h for MAX
arm/bits/atomic.h: Include common/bit/atomic.h for thumb1
wctype.h: fix libc_hidden_proto for iswupper and add it for iswspace
add libc_hidden_proto for wcs[n]casecmp_l
really fix missing __libc_drand48_data
Revert "missing prototype of __libc_drand48_data fixed"
missing prototype of __libc_drand48_data fixed
time.c, time.h: remove unused hidden strftime/strptime
nanosleep.c: remove duplicated libc_hidden_proto
ctype.c, ctype.h: remove commented parts that were banned for removal after 0.9.31
_wctype.c, wctype.h: remove unused isw* and wctype_l hidden functions
time.c, wchar.h: remove unused hidden wcsftime
str[n]casecmp.c: fix hidden usage
remove unused hidden functions
frv/memset.S: add missing libc_hidden_def
...
Conflicts:
ldso/ldso/ldso.c
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Build LDSO path according to the HARDWIRED_ABSPATH setting
While there, remove duplicated slashes in interp.c
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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This adds support for a new binary format, DSBT ELF, to the Makefiles.
Every shared library is assigned a DSBT index, and the link.so macro is
adjusted to ensure the correct linker argument is passed.
Configuration and ldso support will follow in separate commits.
Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Conflicts:
ldso/include/dl-hash.h
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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This builds and installs the crt files.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Added runtime prelink support to be able to run a prelinked
application; at process startup only the conflicts will be relocated.
This speed up the startup time.
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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A new shared object, libubacktrace.so.0 is added to uClibc
to provide backtrace functions to support application self-debugging.
This set of functions requires to dynamically load libgcc_s.so so they
need to call dlopen/dlsym that are provided by libdl. For this reason
they cannot be included into libc.so.0 but are provided by a new library.
User application that wants to use backtrace needs to be compiled with
-fexceptions option and -rdynamic to get full symbols printed and must be
linked against libubacktrace.so
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Now automatically picks the correct (arch and subarch specific) impls in
favour of generic impls.
make O=/tmp/objs PREFIX=/my/sysroot -j
works now as expected (both out-of-tree as well as parallel-safe).
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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for parallel make
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Since sublevel releases are not ABI compatible we need to adjust
the soname to include the sublevel version.
This makes it possible to install ABI incompatible versions of the
library side by side so clean upgrades are possible.
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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