fix: add noexecstack linker flag for security hardening

[mhduiy]

The change adds the -z,noexecstack flag to the linker options in the Debian build rules. This flag marks the stack as non- executable, providing additional security hardening against stack- based buffer overflow attacks. The flag is added conditionally for all architectures except mips64el, maintaining the existing security flags (-z,relro,-z,now,-pie) while enhancing protection.

Influence:

1. Verify the binary is built with the new linker flags by checking the ELF program headers (e.g., using readelf -l)
2. Ensure the stack is marked as non-executable in the built executable
3. Test that the application functions correctly with the new security hardening
4. Confirm the build process completes successfully for all supported architectures except mips64el

fix: 为安全加固添加 noexecstack 链接器标志

此更改在 Debian 构建规则中向链接器选项添加了 -z,noexecstack 标志。该
标志将堆栈标记为不可执行，针对基于堆栈的缓冲区溢出攻击提供了额外的安全
加固。该标志有条件地添加到除 mips64el 外的所有架构，在保持现有安全标志
（-z,relro,-z,now,-pie）的同时增强了保护。

Influence:

1. 通过检查 ELF 程序头（例如使用 readelf -l）验证二进制文件是否使用新 的链接器标志构建
2. 确保构建的可执行文件中堆栈被标记为不可执行
3. 测试应用程序在新的安全加固下功能正常
4. 确认除 mips64el 外所有支持的架构的构建过程成功完成

PMS: BUG-339571

Summary by Sourcery

Build:

• Add the -z,noexecstack linker flag to Debian build rules while preserving existing security-related linker options and excluding mips64el where necessary.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds the -z,noexecstack linker flag to the Debian build rules to mark the stack as non-executable for all architectures except mips64el, while preserving existing hardening flags.

File-Level Changes

Change	Details	Files
Introduce conditional -z,noexecstack linker flag in Debian packaging build rules for security hardening.	Extend linker options to include -z,noexecstack alongside existing -z,relro,-z,now,-pie flags Gate use of -z,noexecstack so it is applied on all supported architectures except mips64el Ensure resulting binaries can be validated via ELF program headers to confirm non-executable stack	debian/rules

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: fly602, mhduiy

The full list of commands accepted by this bot can be found here.

Details

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• debian/deepin/OWNERS

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