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* build-many-glibcs.py: Add x86_64-linux-gnu-minimal configurationFlorian Weimer2021-07-281-0/+10
| | | | | | This configuration exercises various --disable-* configure options. It is expected to catch -Werror failures that only affect these configurations.
* tests: use xmalloc to allocate implementation arraySiddhesh Poyarekar2021-07-283-11/+23
| | | | | | | | The benchmark and tests must fail in case of allocation failure in the implementation array. Also annotate the x* allocators in support.h so that the compiler has more information about them. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* xmalloc: Fix warnings with gcc analyzerSiddhesh Poyarekar2021-07-282-3/+16
| | | | | | | | | | Tell the compiler that xmalloc family of allocators always return non-NULL. xrealloc in locale/programs also always returns non-NULL, but that conflicts with default realloc behaviour and that of xrealloc in libsupport, so keep it as is for now and resolve the differences later. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* __cxa_thread_atexit_impl: Abort on allocation failure [BZ #18524]Siddhesh Poyarekar2021-07-281-0/+4
| | | | | | | Abort in the unlikely event that allocation fails when trying to register a TLS destructor. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* manual: Drop the .so suffix in libc_malloc_debug descriptionSiddhesh Poyarekar2021-07-272-4/+4
| | | | | | | All references to libraries in the manual are without the .so prefix, so do the same for libc_malloc_debug. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* hurd: _Fork: unlock malloc before calling fork child hooksSamuel Thibault2021-07-271-0/+1
| | | | | The setitimer fork hook, fork_itimer, needs to call malloc inside __mach_setup_tls, so we need to unlock malloc before calling it.
* Exclude static tests for mcheck and malloc-checkSiddhesh Poyarekar2021-07-261-10/+3
| | | | | | | | | mcheck and malloc-check no longer work with static binaries, so drop those tests. Reported-by: Samuel Thibault <samuel.thibault@gnu.org> Tested-by: Samuel Thibault <samuel.thibault@gnu.org> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386: Regenerate ulpsArjun Shankar2021-07-252-61/+61
| | | | | These failures were caught while building glibc master for Fedora Rawhide which is built with `-mtune=generic -msse2 -mfpmath=sse'.
* manual: Document unsupported cases for interpositionSiddhesh Poyarekar2021-07-231-0/+7
| | | | | | | | | | These functions call the core allocator functions (realloc and malloc respectively) and are hence guaranteed to allocate memory using the correct functions when multiple allocators are interposed. Having these functions interposed in one allocator and not another may result in confusion, hence discourage interposing them altogether. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* x86: Install <bits/platform/x86.h> [BZ #27958]H.J. Lu2021-07-2314-564/+570
| | | | | | | | | | | | | | | 1. Install <bits/platform/x86.h> for <sys/platform/x86.h> which includes <bits/platform/x86.h>. 2. Rename HAS_CPU_FEATURE to CPU_FEATURE_PRESENT which checks if the processor has the feature. 3. Rename CPU_FEATURE_USABLE to CPU_FEATURE_ACTIVE which checks if the feature is active. There may be other preconditions, like sufficient stack space or further setup for AMX, which must be satisfied before the feature can be used. This fixes BZ #27958. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Fix build and tests with --disable-tunablesSiddhesh Poyarekar2021-07-234-32/+34
| | | | | | | | | | | | | Remove unused code and declare __libc_mallopt when !IS_IN (libc) to allow the debug hook to build with --disable-tunables. Also, run tst-ifunc-isa-2* tests only when tunables are enabled since the result depends on it. Tested on x86_64. Reported-by: Matheus Castanho <msc@linux.ibm.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* hurd: Fix glob lstat compatibilitySamuel Thibault2021-07-222-2/+4
| | | | | | 84f7ce84474c ("posix: Add glob64 with 64-bit time_t support") replaced GLOB_NO_LSTAT with defining GLOB_LSTAT and GLOB_LSTAT64, but the posix and gnu versions of the change were missing in the commit.
* socket: Add time64 alias for setsockoptFlorian Weimer2021-07-2222-0/+36
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* socket: Add time64 alias for getsockoptFlorian Weimer2021-07-2225-1/+99
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* mcheck Fix malloc_usable_size [BZ #22057]Siddhesh Poyarekar2021-07-223-3/+9
| | | | | | | | Interpose malloc_usable_size to return the correct mcheck value for malloc_usable_size. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Remove malloc hooks [BZ #23328]Siddhesh Poyarekar2021-07-226-226/+57
| | | | | | | | | | | | | | Make malloc hooks symbols compat-only so that new applications cannot link against them and remove the declarations from the API. Also remove the unused malloc-hooks.h. Finally, mark all symbols in libc_malloc_debug.so as compat so that the library cannot be linked against. Add a note about the deprecation in NEWS. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Move malloc_{g,s}et_state to libc_malloc_debugSiddhesh Poyarekar2021-07-2264-225/+256
| | | | | | | | | | | | | | | | | | | | | | | These deprecated functions are only safe to call from __malloc_initialize_hook and as a result, are not useful in the general case. Move the implementations to libc_malloc_debug so that existing binaries that need it will now have to preload the debug DSO to work correctly. This also allows simplification of the core malloc implementation by dropping all the undumping support code that was added to make malloc_set_state work. One known breakage is that of ancient emacs binaries that depend on this. They will now crash when running with this libc. With LD_BIND_NOW=1, it will terminate immediately because of not being able to find malloc_set_state but with lazy binding it will crash in unpredictable ways. It will need a preloaded libc_malloc_debug.so so that its initialization hook is executed to allow its malloc implementation to work properly. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* glibc.malloc.check: Wean away from malloc hooksSiddhesh Poyarekar2021-07-2241-80/+447
| | | | | | | | | | | | | | | | | | The malloc-check debugging feature is tightly integrated into glibc malloc, so thanks to an idea from Florian Weimer, much of the malloc implementation has been moved into libc_malloc_debug.so to support malloc-check. Due to this, glibc malloc and malloc-check can no longer work together; they use altogether different (but identical) structures for heap management. This should not make a difference though since the malloc check hook is not disabled anywhere. malloc_set_state does, but it does so early enough that it shouldn't cause any problems. The malloc check tunable is now in the debug DSO and has no effect when the DSO is not preloaded. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* mtrace: Wean away from malloc hooksSiddhesh Poyarekar2021-07-2260-325/+319
| | | | | | | | | | | | | Wean mtrace away from the malloc hooks and move them into the debug DSO. Split the API away from the implementation so that we can add the API to libc.so as well as libc_malloc_debug.so, with the libc implementations being empty. Update localplt data since memalign no longer has any callers after this change. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Simplify __malloc_initializedSiddhesh Poyarekar2021-07-223-24/+18
| | | | | | | | | Now that mcheck no longer needs to check __malloc_initialized (and no other third party hook can since the symbol is not exported), make the variable boolean and static so that it is used strictly within malloc. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* mcheck: Wean away from malloc hooks [BZ #23489]Siddhesh Poyarekar2021-07-2241-465/+861
| | | | | | | | | | | | | | | | | | | | | | | | Split the mcheck implementation into the debugging hooks and API so that the API can be replicated in libc and libc_malloc_debug.so. The libc APIs always result in failure. The mcheck implementation has also been moved entirely into libc_malloc_debug.so and with it, all of the hook initialization code can now be moved into the debug library. Now the initialization can be done independently of libc internals. With this patch, libc_malloc_debug.so can no longer be used with older libcs, which is not its goal anyway. tst-vfork3 breaks due to this since it spawns shell scripts, which in turn execute using the system glibc. Move the test to tests-container so that only the built glibc is used. This move also fixes bugs in the mcheck version of memalign and realloc, thus allowing removal of the tests from tests-mcheck exclusion list. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Move malloc hooks into a compat DSOSiddhesh Poyarekar2021-07-2271-158/+865
| | | | | | | | | | | | | | | | | | | | | | | | Remove all malloc hook uses from core malloc functions and move it into a new library libc_malloc_debug.so. With this, the hooks now no longer have any effect on the core library. libc_malloc_debug.so is a malloc interposer that needs to be preloaded to get hooks functionality back so that the debugging features that depend on the hooks, i.e. malloc-check, mcheck and mtrace work again. Without the preloaded DSO these debugging features will be nops. These features will be ported away from hooks in subsequent patches. Similarly, legacy applications that need hooks functionality need to preload libc_malloc_debug.so. The symbols exported by libc_malloc_debug.so are maintained at exactly the same version as libc.so. Finally, static binaries will no longer be able to use malloc debugging features since they cannot preload the debugging DSO. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Remove __morecore and __default_morecoreSiddhesh Poyarekar2021-07-228-49/+24
| | | | | | | | | | Make the __morecore and __default_morecore symbols compat-only and remove their declarations from the API. Also, include morecore.c directly into malloc.c; this should ideally get merged into malloc in a future cleanup. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Remove __after_morecore_hookSiddhesh Poyarekar2021-07-223-24/+6
| | | | | | | | | | Remove __after_morecore_hook from the API and finalize the symbol so that it can no longer be used in new applications. Old applications using __after_morecore_hook will find that their hook is no longer called. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Make mcheck tests conditional on GLIBC_2.23 or earlierSiddhesh Poyarekar2021-07-221-0/+3
| | | | | | | | | | Targets with base versions of 2.24 or later won't have __malloc_initialize_hook because of which the tests will essentially be the same as the regular malloc tests. Avoid running them instead and save time. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* posix: Add sysconf(_SC_{MIN,}SIGSTKSZ) supportSamuel Thibault2021-07-221-0/+15
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* malloc: Fix tst-mallocfork3-malloc-check linkSamuel Thibault2021-07-221-0/+1
| | | | It uses pthread.
* ARC: elf: make type safeVineet Gupta2021-07-211-13/+10
| | | | Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
* ARC: fp: (micro)optimize FPU_STATUS read by eliding FWE bit clearingVineet Gupta2021-07-211-8/+7
| | | | | | | | | | | | | | | | Any FPU_STATUS write needs setting the FWE bit (31) whcih just provides a "control signal" to enable explicit write (vs. the side-effect of FPU instructions). However this bit is RAZ and write-only, thus effectively never stored in FPU_STATUS register. Thus when reading the register there is no need to clear it. This shaves off a BCLR instruction from the fe*exceptino family of functions and while no big deal still makes sense to do. This came up when debugging a race in math/test-fenv-tls [1] [1]: https://github.com/foss-for-synopsys-dwc-arc-processors/linux/issues/54 Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
* socket: Add time64 alias for sendmsgFlorian Weimer2021-07-2122-0/+35
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* socket: Add time64 alias for recvmsgFlorian Weimer2021-07-2122-0/+34
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* socket: Add time64 alias for sendmmsgFlorian Weimer2021-07-2125-1/+225
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Add time64 alias for prctlFlorian Weimer2021-07-2125-1/+72
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* io: Add time64 alias for fcntlFlorian Weimer2021-07-2124-7/+46
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* misc: Add time64 alias for ioctlFlorian Weimer2021-07-2126-3/+81
| | | | | Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* RISC-V: Update rv64 ULPsDarius Rad2021-07-211-58/+64
| | | | | Generated on a Microsemi Polarfire Icicle Kit running Linux version 5.6.18. Same ULPs were also produced on QEMU 5.2.0 running Linux 5.10.46-1.
* resolv: Do not install libnss_dns.a, libnss_dns.soFlorian Weimer2021-07-201-0/+8
| | | | Fixes commit e1fcf21474c5b522f ("resolv: Move nss_dns into libc").
* hurd: Add support for spawn_do_closefromSamuel Thibault2021-07-192-1/+38
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* elf: Fix tst-cpu-features-cpuinfo on some AMD systems (BZ #28090)Adhemerval Zanella2021-07-194-1/+19
| | | | | | | | | | | | | | | The SSBD feature is implemented in 2 different ways on AMD processors: newer systems (Zen3) provides AMD_SSBD (function 8000_0008, EBX[24]), while older system provides AMD_VIRT_SSBD (function 8000_0008, EBX[25]). However for AMD_VIRT_SSBD, kernel shows both 'ssdb' and 'virt_ssdb' on /proc/cpuinfo; while for AMD_SSBD only 'ssdb' is provided. This now check is AMD_SSBD is set to check for 'ssbd', otherwise check if AMD_VIRT_SSDB is set to check for 'virt_ssbd'. Checked on x86_64-linux-gnu on a Ryzen 9 5900x. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* i386: Add the clone3 wrapperH.J. Lu2021-07-192-0/+125
| | | | | | | extern int clone3 (struct clone_args *__cl_args, size_t __size, int (*__func) (void *__arg), void *__arg); Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* nss: Directly load nss_dns, without going through dlsym/dlopenFlorian Weimer2021-07-196-28/+100
| | | | | | | | | | | | | This partially fixes static-only NSS support (bug 27959): The dns module no longer needs dlopen. Support for disabling dlopen altogher remains to be added. This commit introduces module_load_builtin into nss/nss_module.c, which handles the common parts of loading the built-in nss_files and nss_dns modules. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move nss_dns into libcFlorian Weimer2021-07-196-57/+82
| | | | | | | No abilist updates are needed because the symbols were GLIBC_PRIVATE. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_query functions into libcFlorian Weimer2021-07-1969-280/+520
| | | | | | | | | | | | | | | This switches to public symbols without __ prefixes, due to improved namespace management in glibc. The script was used with --no-new-version to move the symbols __res_nquery, __res_nquerydomain, __res_nsearch, __res_query, __res_querydomain, __res_search, res_query, res_querydomain, res_search. The public symbols res_nquery, res_nquerydomain, res_nsearch, res_ownok, res_query, res_querydomain, res_search were added with make update-all-abi. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_mkquery, res_nmkquery into libcFlorian Weimer2021-07-1969-104/+188
| | | | | | | | | | | | | This switches to public symbols without __ prefixes, due to improved namespace management in glibc. The symbols res_mkquery, __res_mkquery, __res_nmkquery were moved with the script (using --no-new-version). res_mkquery@@GLIBC_2.34, res_nmkquery@@GLIBC_2.34 were added using make update-all-abi. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_send, res_nsend into libcFlorian Weimer2021-07-1970-92/+177
| | | | | | | | | | | Switch to public symbols without __ prefix (due to improved namespace management). __res_send, __res_nsend were moved using the script (with --no-new-version). res_send@@GLIBC_2.34 and res_nsend@@GLIBC_2.34 were added using make update-all-abi. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_hostalias into its own file, along with hostaliasFlorian Weimer2021-07-193-30/+52
| | | | | | | These deprecated symbols continue to be exported from libresolv. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move __res_context_hostalias into its own file and into libcFlorian Weimer2021-07-195-42/+135
| | | | | | | | And reformat it to GNU style. Remove the unecessary setbuf call. Use __fgets_unlocked for PLT avoidance; no locking is required here. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_queriesmatch to its own file and into libcFlorian Weimer2021-07-196-60/+146
| | | | | | | | | | And reformat it to GNU style. The treatment of this function matches res_nameinquery, for the reasons stated there. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move res_nameinquery to its own file and into libcFlorian Weimer2021-07-196-43/+128
| | | | | | | | | | | | And reformat to GNU style. This deprecated function is used in the implementation of the stub resolver (for now). Keep the public symbol in libresolv for now (so that no new symbol version is needed), and add a forwarder to libresolv. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* resolv: Move ns_samename into its own file, and into libcFlorian Weimer2021-07-199-32/+57
| | | | | | | | | | | | But only as an internal symbol, __libc_ns_samename. The libresolv ABI is preserved. This is because the function is deprecated, and it does not make sense to add new symbol versions for deprecated functions. Also reformat the implementation to GNU style. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-05 10:09:08 +0000