kc3-lang/libevent

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  • Hash : fe610f2c
    Author : Azat Khuzhin
    Date : 2023-05-14T22:35:53 

    Fix util/mm_calloc_enomem under FreeBSD

It looks like the compiler optimizes this call out with tt_assert():

    (gdb) disas /m test_event_calloc_enomem
    Dump of assembler code for function test_event_calloc_enomem:
       0x0000000000293bb0 <+0>:     push   %rbp
       0x0000000000293bb1 <+1>:     mov    %rsp,%rbp
       0x0000000000293bb4 <+4>:     call   0x29f510 <__error@plt>
       0x0000000000293bb9 <+9>:     movl   $0x0,(%rax)
       0x0000000000293bbf <+15>:    call   0x2990e0 <tinytest_set_test_failed_>
       0x0000000000293bc4 <+20>:    mov    $0x2168e4,%edi
       0x0000000000293bc9 <+25>:    mov    $0x220582,%esi
       0x0000000000293bce <+30>:    mov    $0x20d893,%edx
       0x0000000000293bd3 <+35>:    mov    $0x53a,%ecx
       0x0000000000293bd8 <+40>:    xor    %eax,%eax
       0x0000000000293bda <+42>:    call   0x29f3b0 <printf@plt>
       0x0000000000293bdf <+47>:    mov    $0x20da72,%edi
       0x0000000000293be4 <+52>:    mov    $0x20f731,%esi
       0x0000000000293be9 <+57>:    xor    %eax,%eax
       0x0000000000293beb <+59>:    pop    %rbp
       0x0000000000293bec <+60>:    jmp    0x29f3b0 <printf@plt>

While with tt_ptr_op() it does not:

    (gdb) disas /m test_event_calloc_enomem
    Dump of assembler code for function test_event_calloc_enomem:
       0x0000000000293bd0 <+0>:     push   %rbp
       0x0000000000293bd1 <+1>:     mov    %rsp,%rbp
       0x0000000000293bd4 <+4>:     push   %rbx
       0x0000000000293bd5 <+5>:     push   %rax
       0x0000000000293bd6 <+6>:     call   0x29f610 <__error@plt>
       0x0000000000293bdb <+11>:    movl   $0x0,(%rax)
       0x0000000000293be1 <+17>:    mov    $0xffffffffffffffff,%rdi
       0x0000000000293be8 <+24>:    mov    $0xffffffffffffffff,%rsi
       0x0000000000293bef <+31>:    call   0x2a01c0 <calloc@plt>
       0x0000000000293bf4 <+36>:    test   %rax,%rax
       0x0000000000293bf7 <+39>:    je     0x293c2b <test_event_calloc_enomem+91>

  • README.md

  • libevent logo

    CI Coverage Status Join the chat at https://gitter.im/libevent/libevent doxygen

    1. BUILDING AND INSTALLATION

    CMake (Unix)

    mkdir build && cd build
cmake ..     # Default to Unix Makefiles.
make
make verify  # (optional)

    See Documentation/Building#Building on Unix using CMake for more information.

    CMake (Windows)

    Install CMake: https://cmake.org/

    md build && cd build
cmake -G "Visual Studio 10" ..   # Or use any generator you want to use. Run cmake --help for a list
cmake --build . --config Release # Or "start libevent.sln" and build with menu in Visual Studio.

    See Documentation/Building#Building on Windows for more information.

    Package Managers

    You can download and install libevent using the vcpkg dependency manager:

    git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh
./vcpkg integrate install
./vcpkg install libevent

    The libevent port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please create an issue or pull request on the vcpkg repository.

    Autoconf

    Note, since 2.2 it is deprecated

    ./configure
make
make verify   # (optional)
sudo make install

    See Documentation/Building#Autoconf for more information.

    2. USEFUL LINKS:

    For the latest released version of Libevent, see the official website at https://libevent.org/ .

    There’s a pretty good work-in-progress manual up at http://www.wangafu.net/~nickm/libevent-book/ .

    For the latest development versions of Libevent, access our Git repository via

    $ git clone https://github.com/libevent/libevent.git

    You can browse the git repository online at:

    https://github.com/libevent/libevent

    To report bugs, issues, or ask for new features:

    Patches: https://github.com/libevent/libevent/pulls

    OK, those are not really patches. You fork, modify, and hit the “Create Pull Request” button. You can still submit normal git patches via the mailing list.

    Bugs, Features [RFC], and Issues: https://github.com/libevent/libevent/issues

    Or you can do it via the mailing list.

    There’s also a libevent-users mailing list for talking about Libevent use and development:

    https://archives.seul.org/libevent/users/

    3. ACKNOWLEDGMENTS

    The following people have helped with suggestions, ideas, code or fixing bugs.

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