| Age | Commit message (Collapse) | Author | Files | Lines |
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They were misattributed as POWER9 sources.
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When building on GNU/Hurd the following warnings repeat themselves:
../Rules:400: target '/home/collin/obj/glibc/io/test-lfs.out' given more than once in the same rule
../Rules:400: target '/home/collin/obj/glibc/io/test-lfs.out' given more than once in the same rule
This is because commit 73b854e955 (hurd: Mark more memory-hungry tests
as unsupported, 2025-01-12) added it to 'tests-unsupported' even though
it was already added by decf02d382 (hurd: Mark two tests as unsupported,
2023-04-13).
Message-ID: <54dc6bf7e0dbedb1b19356f41fec843c1c523b11.1750130025.git.collin.funk1@gmail.com>
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When building on GNU/Hurd warnings like the following occur:
../sysdeps/x86_64/multiarch/strnlen-evex-base.S:53:10: warning: "P2ALIGN" redefined
53 | # define P2ALIGN(...) .p2align 4,, 6
| ^~~~~~~
In file included from /usr/include/x86_64-gnu/mach/x86_64/syscall_sw.h:30,
from ../sysdeps/mach/sysdep.h:21,
from ../sysdeps/mach/x86/sysdep.h:31,
from ../sysdeps/x86_64/multiarch/strnlen-evex-base.S:24:
/usr/include/x86_64-gnu/mach/x86_64/asm.h:78:9: note: this is the location of the previous definition
78 | #define P2ALIGN(p2) .p2align p2 /* gas-specific */
| ^~~~~~~
The fix is to undefine the macro from system headers in sysdep.h so that
it can be properly defined in assembly files where its definition
depends on whether string functions are being compiled for
wide-characters or not.
Message-ID: <721cd3a1bae1a553857db1dd69761a175f611364.1750131904.git.collin.funk1@gmail.com>
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Split and sort tests in resource/Makefile.
Reviewed-by: Arjun Shankar <arjun@redhat.com>
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Introduce tests-link-with-libpthread to list tests that
require linking with libpthread, and use that to generate
dependencies on $(shared-thread-library) for all multi-threaded tests.
Fixes build failures of commit cde5caa4bb21d5c474b9e4762cc847bcbc70e481
("malloc: add testing for large tcache support") on Hurd.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
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Update tst-gnu2-tls2 tests to set XMM0...XMM7 to all 1s in malloc to
verify that XMM registers are preserved when _dl_tlsdesc_dynamic is
called by clearing vectors with zeroed XMM registers before
_dl_tlsdesc_dynamic and using these XMM registers to clear vectors
after _dl_tlsdesc_dynamic. This improves the BZ #31372 test.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
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Compiler generates the following instruction sequence for dynamic TLS
access:
leal tls_var@tlsgd(,%ebx,1), %eax
call ___tls_get_addr@PLT
CALL instruction is transparent to compiler which assumes all registers,
except for EFLAGS, AX, CX, and DX, are unchanged after CALL. But
___tls_get_addr is a normal function which doesn't preserve any vector
registers.
1. Rename the generic __tls_get_addr function to ___tls_get_addr_internal.
2. Change ___tls_get_addr to a wrapper function with implementations for
FNSAVE, FXSAVE, XSAVE and XSAVEC to save and restore all vector registers.
3. dl-tlsdesc-dynamic.h has:
_dl_tlsdesc_dynamic:
/* Like all TLS resolvers, preserve call-clobbered registers.
We need two scratch regs anyway. */
subl $32, %esp
cfi_adjust_cfa_offset (32)
It is wrong to use
movl %ebx, -28(%esp)
movl %esp, %ebx
cfi_def_cfa_register(%ebx)
...
mov %ebx, %esp
cfi_def_cfa_register(%esp)
movl -28(%esp), %ebx
to preserve EBX on stack. Fix it with:
movl %ebx, 28(%esp)
movl %esp, %ebx
cfi_def_cfa_register(%ebx)
...
mov %ebx, %esp
cfi_def_cfa_register(%esp)
movl 28(%esp), %ebx
4. Update _dl_tlsdesc_dynamic to call ___tls_get_addr_internal directly.
5. Add have-test-mtls-traditional to compile tst-tls23-mod.c with
traditional TLS variant to verify the fix.
6. Define DL_RUNTIME_RESOLVE_REALIGN_STACK in sysdeps/x86/sysdep.h.
This fixes BZ #32996.
Co-Authored-By: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Clarify the meaning of renameat arguments.
Signed-off-by: Jitka Obselkova <jobselko@redhat.com>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
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* posix/glob.h (glob_pattern_p): Add __nonnull ((1)) since this function
expects a string and does not check for NULL.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Refactor the generic implementation to use math_config.h definitions,
and add an alternative one if the ABI supports truncf instructions
(gated through math-use-builtins-trunc.h).
The generic implementation generates similar code on x86_64, while
the optimization one for aarch64 (where truncf is supported as a
builtin by through frintz), the improvements are:
reciprocal-throughput master patch difference
workload-0_1 3.0595 3.0698 -0.34%
workload-1_maxint 5.1747 3.0542 40.98%
workload-maxint_maxfloat 3.4391 3.0349 11.75%
workload-integral 3.2732 3.0293 7.45%
latency master patch difference
workload-0_1 3.5267 4.7107 -33.57%
workload-1_maxint 6.9074 4.7282 31.55%
workload-maxint_maxfloat 3.7210 4.7506 -27.67%
workload-integral 3.8634 4.8137 -24.60%
Checked on aarch64-linux-gnu and x86_64-linux-gnu.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Refactor the generic implementation to use math_config.h definitions,
and add an alternative one if the ABI supports truncf instructions
(gated through math-use-builtins-trunc.h).
The generic implementation generates similar code for x86_64, while
the optimization path aarch64 (where truncf is supported as a builtin)
through frintz), the improvements are:
reciprocal-throughput master patch difference
workload-0_1 3.0740 3.0326 1.35%
workload-1_maxint 5.2231 3.0436 41.73%
workload-maxint_maxfloat 4.0962 3.0551 25.42%
workload-integral 3.7093 3.0612 17.47%
latency master patch difference
workload-0_1 3.5521 4.7313 -33.20%
workload-1_maxint 6.7148 4.7314 29.54%
workload-maxint_maxfloat 4.0458 4.7518 -17.45%
workload-integral 3.9719 4.7427 -19.40%
Checked on aarch64-linux-gnu and x86_64-linux-gnu.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Improve codegen by packing coefficients.
4% and 2% improvement in throughput microbenchmark on Neoverse V1, for acosh
and atanh respectively.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Reworke SVE FP64 hyperbolics to use the SVE FEXPA
instruction.
Also update the special case handelling for large
inputs to be entirely vectorised.
Performance improvements on Neoverse V1:
cosh_sve: 19% for |x| < 709, 5x otherwise
sinh_sve: 24% for |x| < 709, 5.9x otherwise
tanh_sve: 12% for |x| < 19, 9x otherwise
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Improve performance of SVE exps by making better use
of the SVE FEXPA instruction.
Performance improvement on Neoverse V1:
exp2_sve: 21%
exp2f_sve: 24%
exp10f_sve: 23%
expm1_sve: 25%
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Commit 404526ee2e58f3c075253943ddc9988f4bd6b80c changed _start to write
the last argument to __libc_start_main without taking into consideration
that the function did not create a full stack frame, which leads to
overwriting the argv[0].
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Move Linux-specific termios headers and tests from misc to termios subdir
and install newly added bits/termios-cbaud.h.
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Remove unused 'address' parameter from _mid_memalign and callers.
Fix off-by-one alignment calculation in __libc_pvalloc.
Reviewed-by: DJ Delorie <dj@redhat.com>
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There is no functional change in this patch.
We remove stores and loads to stack, return address signing, and redundant
CFI directives before and after call to __libc_arm_za_disable().
The __libc_arm_za_disable implementation follows special calling convention
that allows to avoid most of the operations that would be necessary for a
call to a normal function (see [1] for details).
First, we rely on __libc_arm_za_disable() not clobbering certain registers,
and we put return address into one of these registers. Now we don't need
to store it on stack, so we don't need to sign return address using PAC.
Second, as a result of the above, we don't need to update the CFI offset.
This patch provides small optimisation avoiding unnecessary store and load
on stack also simplifies assembly code and CFI directives.
[1]: https://github.com/ARM-software/abi-aa/blob/main/aapcs64/aapcs64.rst
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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No functional change here, just a small refactoring to simplify
using __alloc_gcs() for allocating shadow stacks.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Now that we require at least binutils 2.39 the support for POWER9 and
POWER10 instructions can be assumed.
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The commit cde5caa4bb21d5c474b9e4762cc847bcbc70e481 added the
tests-malloc-largetcache without adjusting the previous entry. The
make check fails with:
make[1]: Entering directory '/path/to/glibc'
make subdir=csu -C csu ..=../ tests
make[2]: Entering directory '/path/to/glibc/csu'
make[2]: *** No rule to make target ')', needed by 'tests'. Stop.
make[2]: Leaving directory '/path/to/csu'
make[1]: *** [Makefile:484: csu/tests] Error 2
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netinet/tcp.h.
This patch adds the TCPI_OPT_USEC_TS constant from Linux 6.14 to
sysdeps/gnu/netinet/tcp.h
This patch adds the TCPI_OPT_TFO_CHILD constant from Linux 6.15 to
sysdeps/gnu/netinet/tcp.h
Signed-off-by: Jeremy Harris <jgh@exim.org>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Test that runs through a fairly large combination of the various
termios speed functions, for the new speed_t interface, for the old
speed_t interface (if enabled), and for the new baud_t interface.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
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Add simple-to-use iterator macros for arrays. They are used instead
of explicit for statements, like:
/* Test all common speeds */
array_foreach_const (ts, test_speeds)
test (fd, *ts);
In this case, ts will be a const pointer to each of the elements of
test_speeds in turn.
Named array_foreach*() to allow for other kinds of equivalent iterator
macros in the future.
Signed-off-by: "H. Peter Anvin" (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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The generic code has __ispeed and __ospeed; Linux has c_ispeed and
c_ospeed. Use an anonymous union member to allow both set of names on
all platforms.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
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Add an explicitly numeric interface for baudrate setting. For glibc,
this only announces what is a fair accompli, but this is a plausible
way forward for standardization, and may be possible to infill on
non-compliant systems. The POSIX committee has stated:
[https://www.austingroupbugs.net/view.php?id=1916#c7135]
A future version of this standard is expected to add at least
the following symbolic constants for use as values of objects
of type speed_t: B57600, B115200, B230400, B460800, and
B921600.
Implementations are encouraged to propose additional
interfaces which will make it possible to set and query a
wider range of speeds than just those enumerated by the
constants beginning with B. If a set of common interfaces
emerges between several implementations, a future version of
this standard will likely add those interfaces.
This is exactly that interface.
The use of the term "baud" is due to the need to have a term
contrasting "speed", and it is already well established as a legacy
term -- including in the names of the legacy Bxxx
constants. Futhermore, it *is* valid from the point of view that the
termios interface fundamentally emulates an RS-232 serial port as far
as the application software is concerned.
The documentation states that for the current version of glibc,
speed_t == baud_t, but explicitly declares that this may not be the
case in the future.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Add all the Bxxx constants defined in the now-generic
<bits/termios-baud.h> in the manual.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
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Now all platforms unconditionally use the "sane" definitions of the
termios baud constants. Unify them into a common file.
Note: I have made them explicitly unsigned to avoid problems with
compiler warnings for comparisons of unequal signedness or
similar. These constants were historically octal on most platforms,
and so unsigned by default.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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POSIX requires that speed_t is an unsigned integer type, so change the
generic speed_t definition to be an unsigned int instead of a plain
int.
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
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The generic implementaion of cfsetspeed() had an internal table of
permitted baud rates, which was enforced even on an implementation
supporting arbitrary baud rates. This was to be able to *also* accept
numeric constants as well as Bxxx values.
This fundamentally makes no sense; not only does it go against the
documented behavior of cfsetspeed() which is to take the same input
as cfset[io]speed(), but it means cfsetspeed() is broken with regard
to a platform supporting arbitrary speeds.
With Linux converted to arbitrary baud rates, the only remaining case
of non-arbitrary baud rates appears to be Hurd with USE_OLD_TTY, which
one can presume being a legacy case that few if any people care about,
and so simply strip out this code and make cfsetspeed() rely on
cfsetospeed() to validate acceptable speed constants.
If a new platform is introduced which does not have arbitrary baud
rate support, using non-baud rate Bxxx constants (highly not
recommended; should be abstracted at the glibc level) but such
aliasing is desired, it should be supported by cfset[io]speed() as
well, and belongs in the platform-specific code.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Hurd with USE_OLD_TTY was the only remaining platform with speed_t not
containing a proper baud rate. From the looks of it, that code has
long since bitrotted.
Remove the vestiges of USE_OLD_TTY.
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
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Linux has supported arbitrary speeds and split speeds in the kernel
since 2008 on all platforms except Alpha (fixed in 2020), but glibc
was never updated to match. This is further complicated by POSIX uses
of macros for the cf[gs]et[io]speed interfaces, rather than plain
numbers, as it really ought to have.
On most platforms, the glibc ABI includes the c_[io]speed fields in
struct termios, but they are incorrectly used. On MIPS and SPARC, they
are entirely missing.
For backwards compatibility, the kernel will still use the legacy
speed fields unless they are set to BOTHER, and will use the legacy
output speed as the input speed if the latter is 0 (== B0). However,
the specific encoding used is visible to user space applications,
including ones other than the one running.
- SPARC and MIPS get a new struct termios, and tc[gs]etattr() is
versioned accordingly. However, the new struct termios is set to be
a strict extension of the old one, which means that cf* interfaces
other than the speed-related ones do not need versioning.
- The Bxxx constants are redefined as equivalent to their integer
values and the legacy Bxxx constants are renamed __Bxxx.
- cf[gs]et[io]speed() and cfsetspeed() are versioned accordingly.
- tcgetattr() and cfset[io]speed() are adjusted to always keep the
c_[io]speed fields correct (unlike earlier versions), but to
canonicalize the representation to ALSO configure the legacy fields
if a valid legacy representation exists.
- tcsetattr(), too, canonicalizes the representation in this way
before passing it to the kernel, to maximize compatibility with
older applications/tools.
- The old IBAUD0 hack is removed; it is no longer necessary since
even the legacy c_cflag baud rate fields have had separate input
values for a long time.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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The powerpc architecture, only, emulates the termios ioctls using the
glibc termios structure. Export the real kernel ones as the termios2
interface; although the kernel doesn't call it termios2, it is exactly
the termios2 interface, and it avoids the namespace clash between the
emulated ioctls and the real kernel ioctls.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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In the kernel, these are <linux/sockios.h>. The differences between
<linux/sockios.h> and the copied data in <bits/ioctls.h> are minor;
mainly some #ifdefs, so try to use <linux/sockios.h> directly; it is
hopefully clean enough these days to use directly.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Replace local_isatty() inlined in libio with a proper function
__isatty_nostatus(). This allows simpler system-specific
implementations that don't need to touch errno at all.
Note: I left the prototype in include/unistd.h (the internal header
file.) It didn't much make sense to me to put it in a different header
(not-cancel.h), but perhaps someone can elucidate the need.
Add such an implementation for Linux, with a generic fallback.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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There is a prototype for an internal __tcsetattr() function in
include/termios.h, but tcsetattr without __ were still declared as the
actual functions.
Make this match the comment and make __tcsetattr() an internal
interface. This will be required to version struct termios for Linux on
MIPS and SPARC.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Add Fix-Commit information for backported fixes.
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This fixes:
FAIL: lint-makefiles
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
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This reverts commit 3367d8e180848030d1646f088759f02b8dfe0d6f
Reason for revert: Power10 strcmp clobbers non-volatile vector
registers (Bug 33056)
Tested on ppc64le without regression.
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This reverts commit b9182c793caa05df5d697427c0538936e6396d4b
Reason for revert: Power10 memchr clobbers v20 vector register
(Bug 33059)
This is not a security issue, unlike CVE-2025-5745 and
CVE-2025-5702.
Tested on ppc64le without regression.
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(CVE-2025-5702)
This reverts commit 90bcc8721ef82b7378d2b080141228660e862d56
This change is in the chain of the final revert that fixes the CVE
i.e. 3367d8e180848030d1646f088759f02b8dfe0d6f
Reason for revert: Power10 strcmp clobbers non-volatile vector
registers (Bug 33056)
Tested on ppc64le with no regressions.
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This reverts commit 23f0d81608d0ca6379894ef81670cf30af7fd081
Reason for revert: Power10 strncmp clobbers non-volatile vector
registers (Bug 33060)
Tested on ppc64le with no regressions.
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This patch adds large tcache support tests by re-executing malloc tests
using the tunable: glibc.malloc.tcache_max=1048576
Test names are postfixed with "largetcache".
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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Existing tcache implementation in glibc seems to focus in caching
smaller data size allocations, limiting the size of the allocation to
1KB.
This patch changes tcache implementation to allow to cache any chunk
size allocations. The implementation adds extra bins (linked-lists)
which store chunks with different ranges of allocation sizes. Bin
selection is done in multiples in powers of 2 and chunks are inserted in
growing size ordering within the bin. The last bin contains all other
sizes of allocations.
This patch although by default preserves the same implementation,
limitting caches to 1KB chunks, it now allows to increase the max size
for the cached chunks with the tunable glibc.malloc.tcache_max.
It also now verifies if chunk was mmapped, in which case __libc_free
will not add it to tcache.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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On x86-64, when GCC 14.2.1 is used to build:
commit f3c82fc1b41261f582f5f9fa12f74af9bcbc88f9
Author: Radko Krkos <krkos@mail.muni.cz>
Date: Sat Jun 14 11:07:40 2025 +0200
io: Mark lockf() __wur [BZ #32800]
In commit 0476597b28 flock() was marked __wur in posix/unistd.h, but not
in io/fcntl.h, the declarations must match.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
I got
programs/locarchive.c: In function ‘open_archive’:
programs/locarchive.c:641:18: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
641 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
programs/locarchive.c:653:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
653 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
programs/locarchive.c:660:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
660 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
programs/locarchive.c:679:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
679 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Update locarchive.c to always check lockf64 return value. This fixes
BZ #33089.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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rtld.c has
extern const ElfW(Ehdr) __ehdr_start attribute_hidden;
...
_dl_rtld_map.l_map_start = (ElfW(Addr)) &__ehdr_start;
_dl_rtld_map.l_map_end = (ElfW(Addr)) _end;
As
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120653
shows, compiler may generate run-time relocation on __ehdr_start with
movq .LC0(%rip), %xmm0
...
.section .data.rel.ro.local,"aw"
.align 8
.LC0:
.quad __ehdr_start
This won't work before run-time relocation is finished in rtld.c. Add
optimization barrier to prevent run-time relocations against __ehdr_start
and _end.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
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Signed-off-by: gfleury <gfleury@disroot.org>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-ID: <20250613184440.1660335-1-gfleury@disroot.org>
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Since
commit 53df2ce6885da3d0e89e87dca7b095622296014f
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Sep 8 13:02:06 2023 +0200
elf: Remove unused l_text_end field from struct link_map
removed the only reference to _etext, also remove the unused _etext
declaration.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
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In commit 0476597b28 flock() was marked __wur in posix/unistd.h, but not
in io/fcntl.h, the declarations must match.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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It adds four ranges, which is how the generic implementation handles
normal numbers:
1. Random inputs in the range [0.0, 1.0];
2. Random inputs in the range [1.0, (double)(UINT64_C(1) << 52))];
3. Random inputs in the range [(double)(UINT64_C(1) << 52), DBL_MAX];
4. Random integral inputs in the range [0.0, (double)(UINT64_C(1) << 52)].
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
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