glibc/Makerules, branch masterFork of glibc for developmenthttps://git.zx2c4.com/glibc/atom/Makerules?h=master2024-02-25T17:22:40ZSupport compiling .S files with additional options2024-02-25T17:22:40ZH.J. Luhjl.tools@gmail.com2024-02-25T12:22:03Zurn:sha1:c503c2603c230005f5af40d14494c427f61b0160
Add $(sysdep-ASFLAGS) $(ASFLAGS-$(<F)) $(ASFLAGS-$(@F)) to compile.S and
COMPILE.S to support compiling .S files with additional options.
Remove installed header rule on $(..)include/%.h2024-01-09T18:35:37ZH.J. Luhjl.tools@gmail.com2024-01-09T18:25:20Zurn:sha1:1eae989cb7632760fd6f4008be73549da861b202
On x86-64 machine with
[hjl@gnu-cfl-3 x86-glibc]$ ls -l /usr/include/asm/prctl.h sysdeps/unix/sysv/linux/x86_64/include/asm/prctl.h
-rw-r--r-- 1 hjl hjl 825 Jan 9 09:41 sysdeps/unix/sysv/linux/x86_64/include/asm/prctl.h
-rw-r--r-- 1 root root 1170 Nov 27 16:00 /usr/include/asm/prctl.h
[hjl@gnu-cfl-3 x86-glibc]$
glibc configured with --enable-cet build failed:
make[2]: Entering directory '/export/gnu/import/git/gitlab/x86-glibc/iconv'
../Makerules:327: update target
'/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/gnu/lib-names-64.h'
due to: /export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/gnu/lib-names-64.stmp
:
../Makeconfig:1216: update target
'/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/libc-modules.h'
due to: /export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/libc-modules.stmp
:
../Makerules:1126: update target '/usr/include/asm/prctl.h' due to:
../sysdeps/unix/sysv/linux/x86_64/64/../include/asm/prctl.h
force-install
/usr/bin/install -c -m 644
../sysdeps/unix/sysv/linux/x86_64/64/../include/asm/prctl.h
/usr/include/asm/prctl.h
/usr/bin/install: cannot remove '/usr/include/asm/prctl.h': Permission denied
make[2]: *** [../Makerules:1126: /usr/include/asm/prctl.h] Error 1
make[2]: Leaving directory '/export/gnu/import/git/gitlab/x86-glibc/iconv'
make[1]: *** [Makefile:484: iconv/subdir_lib] Error 2
make[1]: Leaving directory '/export/gnu/import/git/gitlab/x86-glibc'
make: *** [Makefile:9: all] Error 2
This is triggered by the rule in Makerules:
$(inst_includedir)/%.h: $(..)include/%.h $(+force)
$(do-install)
Since no files under include/ should be installed, remove it from
Makerules.
Tested it on x86-64. There are no differences in the installed header
files.
Update copyright dates with scripts/update-copyrights2024-01-01T18:53:40ZPaul Eggerteggert@cs.ucla.edu2024-01-01T18:12:26Zurn:sha1:dff8da6b3e89b986bb7f6b1ec18cf65d5972e307Fix tests-clean Makefile target (bug 30545)2023-06-26T13:37:25ZMaxim Kuvyrkovmaxim.kuvyrkov@linaro.org2023-06-15T15:25:47Zurn:sha1:7c507f4473911a13273ac535b02fd55edc8e19f9
This patch improves tests-clean Makefile target to reliably clean
test artifacts from a build directory. Before this patch tests-clean
missed around 3k (out of total 9k) .out and .test-result files.
Signed-off-by: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Fix all the remaining misspellings -- BZ 253372023-06-02T01:39:48ZPaul Pluzhnikovppluzhnikov@google.com2023-05-20T13:37:47Zurn:sha1:7f0d9e61f40c669fca3cfd1e342fa8236c7220b7Remove --with-default-link configure option2023-03-27T16:57:55ZAdhemerval Zanella Nettoadhemerval.zanella@linaro.org2022-12-27T21:11:44Zurn:sha1:91fc5b99907655bc04cf23247b5fe0ae0ca6e9eb
Now that there is no need to use a special linker script to hardening
internal data structures, remove the --with-default-link configure
option and associated definitions.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
libio: Remove the usage of __libc_IO_vtables2023-03-27T16:57:55ZAdhemerval Zanella Nettoadhemerval.zanella@linaro.org2022-12-27T21:11:43Zurn:sha1:3020f72618e4f1d7338cd42b8bc7b2813e961b5a
Instead of using a special ELF section along with a linker script
directive to put the IO vtables within the RELRO section, the libio
vtables are all moved to an array marked as data.relro (so linker
will place in the RELRO segment without the need of extra directives).
To avoid static linking namespace issues and including all vtable
referenced objects, all required function pointers are set to weak alias.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
libio: Do not autogenerate stdio_lim.h2023-03-27T16:57:55ZAdhemerval Zanella Nettoadhemerval.zanella@linaro.org2023-03-06T18:53:55Zurn:sha1:f65ca70deaf38db4ca12458e74cefd8ad9063956
Instead define the required fields in system dependend files. The only
system dependent definition is FILENAME_MAX, which should match POSIX
PATH_MAX, and it is obtained from either kernel UAPI or mach headers.
Currently set pre-defined value from current kernels.
It avoids a circular dependendy when including stdio.h in
gen-as-const-headers files.
Checked on x86_64-linux-gnu and i686-linux-gnu
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Move libc_freeres_ptrs and libc_subfreeres to hidden/weak functions2023-03-27T16:57:55ZAdhemerval Zanella Nettoadhemerval.zanella@linaro.org2022-12-27T21:11:42Zurn:sha1:88677348b4de73874ca7d5a47451f42880f65f07
They are both used by __libc_freeres to free all library malloc
allocated resources to help tooling like mtrace or valgrind with
memory leak tracking.
The current scheme uses assembly markers and linker script entries
to consolidate the free routine function pointers in the RELRO segment
and to be freed buffers in BSS.
This patch changes it to use specific free functions for
libc_freeres_ptrs buffers and call the function pointer array directly
with call_function_static_weak.
It allows the removal of both the internal macros and the linker
script sections.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Update copyright dates with scripts/update-copyrights2023-01-06T21:14:39ZJoseph Myersjoseph@codesourcery.com2023-01-06T21:08:04Zurn:sha1:6d7e8eda9b85b08f207a6dc6f187e94e4817270f