History log of /llvm-project/libc/src/sys/mman/linux/mmap.cpp (Results 1 – 13 of 13)
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# 5ff3ff33 12-Jul-2024 Petr Hosek <phosek@google.com>

[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98597)

This is a part of #97655.


# ce9035f5 12-Jul-2024 Mehdi Amini <joker.eph@gmail.com>

Revert "[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration" (#98593)

Reverts llvm/llvm-project#98075

bots are broken


# 3f30effe 11-Jul-2024 Petr Hosek <phosek@google.com>

[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98075)

This is a part of #97655.


# 7776fba4 08-Jul-2024 Mikhail R. Gadelha <mikhail@igalia.com>

[libc][NFC] Adjust use of off_t internally (#68269)

This patch includes changes related to the use of off_t in libc,
targeted at 32-bit systems: in several places, the offset is used either
as a l

[libc][NFC] Adjust use of off_t internally (#68269)

This patch includes changes related to the use of off_t in libc,
targeted at 32-bit systems: in several places, the offset is used either
as a long or an off_t (64-bit signed int), but in 32-bit systems a long
type is only 32 bits long.

Fix a warning in mmap where a long offset is expected, but we were
passing an off_t. A static_cast and a comment were added to explain
that we know we are ignoring the upper 32-bit of the off_t in 32-bit
systems.
The code in pread and pwrite was slightly improved to remove a
#ifdef LIBC_TARGET_ARCH_IS_RISCV32; we are using an if constexpr now.
The Linux file operations were changed to use off_t instead of a long
where applicable. No changes were made to the standard API, e.g.,
ftell returns the offset as an int so we added a static_cast and a
comment explaining that this will cause a loss of integer precision
in 32-bit systems.

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Revision tags: llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2
# b6bc9d72 26-Sep-2023 Guillaume Chatelet <gchatelet@google.com>

[libc] Mass replace enclosing namespace (#67032)

This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079


Revision tags: llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2
# f0a3954e 02-Aug-2023 Michael Jones <michaelrj@google.com>

[libc][cleanup] Fix most conversion warnings

This patch is large, but is almost entirely just adding casts to calls
to syscall_impl. Much of the work was done programatically, with human
checking wh

[libc][cleanup] Fix most conversion warnings

This patch is large, but is almost entirely just adding casts to calls
to syscall_impl. Much of the work was done programatically, with human
checking when the syntax or types got confusing.

Reviewed By: mcgrathr

Differential Revision: https://reviews.llvm.org/D156950

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Revision tags: llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2
# 5b22df99 17-Apr-2023 Mikhail R. Gadelha <mikhail@igalia.com>

[libc][NFC] Standardize missing syscalls error messages.

This patch standardizes the error messages when a syscall is not
available to be in the format: "ABC and DEF syscalls are not available."

Re

[libc][NFC] Standardize missing syscalls error messages.

This patch standardizes the error messages when a syscall is not
available to be in the format: "ABC and DEF syscalls are not available."

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D148373

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Revision tags: llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4
# 204587a3 01-Mar-2023 Siva Chandra Reddy <sivachandra@google.com>

[libc][NFC] Switch use of errno in src/unistd and src/sys to libc_errno.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D145096


Revision tags: llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, working, llvmorg-15.0.2
# 1801c356 22-Sep-2022 Michael Jones <michaelrj@google.com>

[libc] add syscall function

Add the syscall wrapper function and tests. It's implemented using a
macro to guarantee the minimum number of arguments.

Reviewed By: sivachandra, lntue

Differential Re

[libc] add syscall function

Add the syscall wrapper function and tests. It's implemented using a
macro to guarantee the minimum number of arguments.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D134919

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Revision tags: llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2
# 134e9d19 11-Jan-2022 Siva Chandra Reddy <sivachandra@google.com>

[libc][NFC] Move sys/mman entrypoints to the default build configs.

Specifically, mmap and munmap have been moved to the default build list
of entrypoints. To support this, certain deps and includes

[libc][NFC] Move sys/mman entrypoints to the default build configs.

Specifically, mmap and munmap have been moved to the default build list
of entrypoints. To support this, certain deps and includes have been
adjusted. The use of errno in some cases has been updated.

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# 3cc2161c 22-Dec-2021 Siva Chandra Reddy <sivachandra@google.com>

[libc] Move the x86_64 syscall functions to OSUtil.

Reviewed By: michaelrj, lntue

Differential Revision: https://reviews.llvm.org/D116177


Revision tags: llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1
# a0b65a7b 23-Dec-2020 Michael Jones <michaelrj@google.com>

[libc] Switch to use a macro which does not insert a section for every libc function.

Summary:
The new macro also inserts the C alias for the C++ implementations
without needing an objcopy based pos

[libc] Switch to use a macro which does not insert a section for every libc function.

Summary:
The new macro also inserts the C alias for the C++ implementations
without needing an objcopy based post processing step. The CMake
rules have been updated to reflect this. More CMake cleanup can be
taken up in future rounds and appropriate TODOs have been added for them.

Reviewers: mcgrathr, sivachandra

Subscribers:

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Revision tags: llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1, llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5, llvmorg-10.0.0-rc4, llvmorg-10.0.0-rc3, llvmorg-10.0.0-rc2, llvmorg-10.0.0-rc1, llvmorg-11-init
# ec62bf2f 07-Jan-2020 Siva Chandra Reddy <sivachandra@google.com>

[libc] Move the implementation of mmap and munmap into a linux specific area.

This allows us to get rid of the PAGE_SIZE macro and use EXEC_PAGESIZE
from linux/param.h.

Few other points about this

[libc] Move the implementation of mmap and munmap into a linux specific area.

This allows us to get rid of the PAGE_SIZE macro and use EXEC_PAGESIZE
from linux/param.h.

Few other points about this change:
1. The linux syscall functions have been moved into a linux specific area
instead of src/unistd/syscall.h. The Linux syscall function from unistd.h
is a public vararg function. What we have currently are linux speciif internal
overloaded C++ functions. So, moving them to a Linux only area is more
meaningful.
2. The implementations of mmap and munmap are now in a 'linux' directory
within src/sys/mman. The idea here is that platform specific
implementations will live in a platform specific subdirectories like these.
Infrastructure common to a platform will live in the platform's config
directory. For example, the linux syscall implementations live in
config/linux.

Reviewers: abrachet

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D73302

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