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* hurd: Make init-first.c no longer x86-specificSergey Bugaev2024-01-041-253/+0
| | | | | | | This will make it usable in other ports. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-ID: <20240103171502.1358371-10-bugaevc@gmail.com>
* hurd: Drop x86-specific assembly from init-first.cSergey Bugaev2024-01-041-9/+1
| | | | | | | | We already have the RETURN_TO macro for this exact use case, and it's already used in the non-static code path. Use it here too. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-ID: <20240103171502.1358371-9-bugaevc@gmail.com>
* hurd: Pass the data pointer to _hurd_stack_setup explicitlySergey Bugaev2024-01-041-9/+7
| | | | | | | | | Instead of relying on the stack frame layout to figure out where the stack pointer was prior to the _hurd_stack_setup () call, just pass the pointer as an argument explicitly. This is less brittle and much more portable. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-ID: <20240103171502.1358371-8-bugaevc@gmail.com>
* Update copyright dates with scripts/update-copyrightsPaul Eggert2024-01-017-7/+7
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* hurd: Drop REG_GSFS and REG_ESDS from x86_64's ucontextSamuel Thibault2023-09-281-2/+2
| | | | These are useless on x86_64, and __NGREG was actually wrong with them.
* mach: Fix accessing mach_i386.hSamuel Thibault2023-05-231-1/+5
| | | | Fixes: 196358ae26aa ("mach: Fix installing mach_i386.h")
* hurd: Fix setting up pthreadsSergey Bugaev2023-05-171-100/+0
| | | | | | | | | | | | | | | | | | | | On x86_64, we have to pass function arguments in registers, not on the stack. We also have to align the stack pointer in a specific way. Since sharing the logic with i386 does not bring much benefit, split the file back into i386- and x86_64-specific versions, and fix the x86_64 version to set up the thread properly. Bonus: i386 keeps doing the extra RPC inside __thread_set_pcsptp to fetch the state of the thread before setting it; but x86_64 no lnoger does that. Checked on x86_64-gnu and i686-gnu. Fixes be6d002ca277ffc90058d382396150cb0e785b9c "hurd: Set up the basic tree for x86_64-gnu" Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230517191436.73636-9-bugaevc@gmail.com>
* hurd: Make sure to not use tcb->selfSergey Bugaev2023-05-171-22/+12
| | | | | | | | | | | | | | | | | | | | Unlike sigstate->thread, tcb->self did not hold a Mach port reference on the thread port it names. This means that the port can be deallocated, and the name reused for something else, without anyone noticing. Using tcb->self will then lead to port use-after-free. Fortunately nothing was accessing tcb->self, other than it being intially set to then-valid thread port name upon TCB initialization. To assert that this keeps being the case without altering TCB layout, rename self -> self_do_not_use, and stop initializing it. Also, do not (re-)allocate a whole separate and unused stack for the main thread, and just exit __pthread_setup early in this case. Found upon attempting to use tcb->self and getting unexpected crashes. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230517191436.73636-7-bugaevc@gmail.com>
* hurd: Fix sc_i386_thread_state layoutSergey Bugaev2023-05-161-0/+6
| | | | | | | | | | | | | | | | | | | The real i386_thread_state Mach structure has an alignment of 8 on x86_64. However, in struct sigcontext, the compiler was packing sc_gs (which is the first member of sc_i386_thread_state) into the same 8-byte slot as sc_error; this resulted in the rest of sc_i386_thread_state members having wrong offsets relative to each other, and the overall sc_i386_thread_state layout mismatching that of i386_thread_state. Fix this by explicitly adding the required padding members, and statically asserting that this results in the desired alignment. The same goes for sc_i386_float_state. Checked on x86_64-gnu. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230515083323.1358039-4-bugaevc@gmail.com>
* hurd: Align signal stack pointer after allocating stackframeSergey Bugaev2023-05-161-3/+2
| | | | | | | | | | | sizeof (*stackframe) appears to be divisible by 16, but we should not rely on that. So make sure to leave enough space for the stackframe first, and then align the final pointer at 16 bytes. Checked on x86_64-gnu. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230515083323.1358039-3-bugaevc@gmail.com>
* hurd: Fix aligning signal stack pointerSergey Bugaev2023-05-161-1/+1
| | | | | | | | | | | Fixes 60f9bf974694d50daf58d46347b06a5975ac5ddd "hurd: Port trampoline.c to x86_64" Checked on x86_64-gnu. Reported-by: Bruno Haible <bruno@clisp.org> Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230515083323.1358039-2-bugaevc@gmail.com>
* hurd: Don't migrate reply port into __init1_tcbheadSergey Bugaev2023-04-211-6/+1
| | | | | | | | | | | | | | | Properly differentiate between setting up the real TLS with TLS_INIT_TP, and setting up the early TLS (__init1_tcbhead) in static builds. In the latter case, don't yet migrate the reply port into the TCB, and don't yet set __libc_tls_initialized to 1. This also lets us move the __init1_desc assignment inside _hurd_tls_init (). Fixes cd019ddd892e182277fadd6aedccc57fa3923c8d "hurd: Don't leak __hurd_reply_port0" Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
* hurd: Only check for TLS initialization inside rtld or in static buildsSergey Bugaev2023-04-141-10/+1
| | | | | | | | | | | | | | | | | | | | | When glibc is built as a shared library, TLS is always initialized by the call of TLS_INIT_TP () macro made inside the dynamic loader, prior to running the main program (see dl-call_tls_init_tp.h). We can take advantage of this: we know for sure that __LIBC_NO_TLS () will evaluate to 0 in all other cases, so let the compiler know that explicitly too. Also, only define _hurd_tls_init () and TLS_INIT_TP () under the same conditions (either !SHARED or inside rtld), to statically assert that this is the case. Other than a microoptimization, this also helps with avoiding awkward sharing of the __libc_tls_initialized variable between ld.so and libc.so that we would have to do otherwise -- we know for sure that no sharing is required, simply because __libc_tls_initialized would always be set to true inside libc.so. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230319151017.531737-25-bugaevc@gmail.com>
* Revert "hurd: Only check for TLS initialization inside rtld or in static builds"Samuel Thibault2023-04-111-1/+10
| | | | | | | | This reverts commit b37899d34d2190ef4b454283188f22519f096048. Apparently we load libc.so (and thus start using its functions) before calling TLS_INIT_TP, so libc.so functions should not actually assume that TLS is always set up.
* hurd: Only check for TLS initialization inside rtld or in static buildsSergey Bugaev2023-04-101-10/+1
| | | | | | | | | | | | | | | | | | | | | When glibc is built as a shared library, TLS is always initialized by the call of TLS_INIT_TP () macro made inside the dynamic loader, prior to running the main program (see dl-call_tls_init_tp.h). We can take advantage of this: we know for sure that __LIBC_NO_TLS () will evaluate to 0 in all other cases, so let the compiler know that explicitly too. Also, only define _hurd_tls_init () and TLS_INIT_TP () under the same conditions (either !SHARED or inside rtld), to statically assert that this is the case. Other than a microoptimization, this also helps with avoiding awkward sharing of the __libc_tls_initialized variable between ld.so and libc.so that we would have to do otherwise -- we know for sure that no sharing is required, simply because __libc_tls_initialized would always be set to true inside libc.so. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230319151017.531737-25-bugaevc@gmail.com>
* hurd: Port trampoline.c to x86_64Sergey Bugaev2023-04-101-0/+485
| | | | | Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230403115621.258636-3-bugaevc@gmail.com>
* hurd: Move a couple of signal-related files to x86Sergey Bugaev2023-04-032-0/+206
| | | | | | | These do not need any changes to be used on x86_64. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230319151017.531737-20-bugaevc@gmail.com>
* hurd: More 64-bit integer casting fixesSergey Bugaev2023-04-031-2/+2
| | | | | Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230319151017.531737-13-bugaevc@gmail.com>
* hurd: Remove __hurd_threadvar_stack_{offset,mask}Sergey Bugaev2023-04-031-3/+0
| | | | | | | | | | | Noone is or should be using __hurd_threadvar_stack_{offset,mask}, we have proper TLS now. These two remaining variables are never set to anything other than zero, so any code that would try to use them as described would just dereference a zero pointer and crash. So remove them entirely. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230319151017.531737-6-bugaevc@gmail.com>
* hurd: Implement TLS for x86_64Sergey Bugaev2023-02-271-1/+13
| | | | | Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230221211932.296459-4-bugaevc@gmail.com>
* hurd: Generalize init-first.c to support x86_64Sergey Bugaev2023-02-241-0/+268
| | | | | Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230223151436.49180-2-bugaevc@gmail.com>
* [hurd] Fix i686 build breakage caused by 4fedebc91108Flavio Cruz2023-02-171-1/+1
| | | | Message-Id: <Y+8bqZzYTl7WaUm7@jupiter.tail36e24.ts.net>
* hurd: Set up the basic tree for x86_64-gnuSergey Bugaev2023-02-121-0/+110
| | | | | | | And move pt-setup.c to the generic x86 tree. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230212111044.610942-11-bugaevc@gmail.com>
* hurd: Move some i386 bits to x86Samuel Thibault2023-02-023-0/+246
| | | | As they will actually be usable on x86_64 too.
* Update copyright dates with scripts/update-copyrightsJoseph Myers2023-01-062-2/+2
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* SET_RELHOOK: merge i386 and x86_64, and move to sysdeps/mach/hurd/x86Samuel Thibault2022-02-011-0/+28
| | | | | | | It is not Hurd-specific, but H.J. Lu wants it there. Also, dc.a can be used to avoid hardcoding .long vs .quad and thus use the same implementation for i386 and x86_64.
* Update copyright dates with scripts/update-copyrightsPaul Eggert2022-01-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
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* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* hurd: mach/hurd/x86 also needs x86 tunablesSamuel Thibault2017-09-031-0/+21
* sysdeps/mach/hurd/x86/dl-sysdep.c: New file.
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