Ld - Revision history

Ted: Miguel Young de la Sota linker script language tutorial

2025-12-19T04:19:17Z

Miguel Young de la Sota linker script language tutorial

Ted: Add section on ELF files.

2025-08-16T14:12:37Z

Add section on ELF files.

Ted: Add link to allthingsembedded.com article on object file linking.

2025-07-01T19:13:48Z

Add link to allthingsembedded.com article on object file linking.

Ted: Memory Use Report - add link to Phillip Johnston article on correct memory use reporting via linker script crafting.

2025-03-13T15:42:09Z

Memory Use Report - add link to Phillip Johnston article on correct memory use reporting via linker script crafting.

Ted: Memory Use Report using ld.

2025-03-13T06:50:59Z

Memory Use Report using ld.

Ted: linker alignment macro in Zephyr.

2024-08-05T18:01:30Z

linker alignment macro in Zephyr.

Ted: Add a reference to gcc linker documentation.

2024-06-05T23:40:13Z

Add a reference to gcc linker documentation.

Ted: Add links to docs on how to place C global variables at a particular address.

2024-06-05T23:38:42Z

Add links to docs on how to place C global variables at a particular address.

Ted: Add link to Stackoverflow post regarding ld "keep" keyword.

2024-06-05T23:19:20Z

Add link to Stackoverflow post regarding ld "keep" keyword.

Ted: Add link to LLVM linker documentation.

2024-03-11T16:28:57Z

Add link to LLVM linker documentation.

← Older revision		Revision as of 04:19, 19 December 2025
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	* https://allthingsembedded.com/post/2020-04-11-mastering-the-gnu-linker-script/		* https://allthingsembedded.com/post/2020-04-11-mastering-the-gnu-linker-script/
		+
		+	2025-12-18
		+
		+	Miguel Young de la Sota linker script language tutorial
		+
		+	* https://mcyoung.xyz/2021/06/01/linker-script/
		+

	Use of 'KEEP' key word in linker scripts:		Use of 'KEEP' key word in linker scripts:

← Older revision		Revision as of 14:12, 16 August 2025
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	* https://embeddedartistry.com/blog/2023/03/01/configuring-a-linker-script-for-accurate-linker-memory-usage-reporting/		* https://embeddedartistry.com/blog/2023/03/01/configuring-a-linker-script-for-accurate-linker-memory-usage-reporting/
		+
		+	== ELF Files ==
		+
		+	May want to move ELF file format and reading notes to dedicated local page. Good intro tutorial:
		+
		+	* https://linux-audit.com/elf-binaries-on-linux-understanding-and-analysis/

	<!-- EOF -->		<!-- EOF -->

← Older revision		Revision as of 19:13, 1 July 2025
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	* https://lld.llvm.org/ELF/linker_script.html . . . LLVM linker documentation		* https://lld.llvm.org/ELF/linker_script.html . . . LLVM linker documentation
		+
		+	* https://allthingsembedded.com/post/2020-04-11-mastering-the-gnu-linker-script/

	Use of 'KEEP' key word in linker scripts:		Use of 'KEEP' key word in linker scripts:

@@ Line 69: / Line 69: @@
 == Memory Use Report ==
 *  https://embeddedartistry.com/blog/2020/08/17/three-gcc-flags-for-analyzing-memory-usage/
 <!-- EOF -->

← Older revision		Revision as of 06:50, 13 March 2025
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	</pre>		</pre>

		+	== Memory Use Report ==
		+
		+	* https://embeddedartistry.com/blog/2020/08/17/three-gcc-flags-for-analyzing-memory-usage/

	<!-- EOF -->		<!-- EOF -->

← Older revision		Revision as of 18:01, 5 August 2024
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		+
		+	2024-08-05 MON
		+
		+	Interesting linker script macro in one of Zephy's header files . . .
		+	<pre>
		+	"
		+	167
		+	168 #ifndef BUILD_ASSERT
		+	169 /* Compile-time assertion that makes the build to fail.
		+	170 * Common implementation swallows the message.
		+	171 */
		+	172 #define BUILD_ASSERT(EXPR, MSG...) \
		+	173 enum _CONCAT(__build_assert_enum, __COUNTER__) { \
		+	174 _CONCAT(__build_assert, __COUNTER__) = 1 / !!(EXPR) \
		+	175 }
		+	176 #endif
		+	177
		+	178 /*
		+	179 * This is meant to be used in conjunction with __in_section() and similar
		+	180 * where scattered structure instances are concatenated together by the linker
		+	181 * and walked by the code at run time just like a contiguous array of such
		+	182 * structures.
		+	183 *
		+	184 * Assemblers and linkers may insert alignment padding by default whose
		+	185 * size is larger than the natural alignment for those structures when
		+	186 * gathering various section segments together, messing up the array walk.
		+	187 * To prevent this, we need to provide an explicit alignment not to rely
		+	188 * on the default that might just work by luck.
		+	189 *
		+	190 * Alignment statements in linker scripts are not sufficient as
		+	191 * the assembler may add padding by itself to each segment when switching
		+	192 * between sections within the same file even if it merges many such segments
		+	193 * into a single section in the end.
		+	194 */
		+	195 #define Z_DECL_ALIGN(type) __aligned(__alignof(type)) type
		+	196
		+
		+	"~/projects-sandbox/workspace-for-nexus/zephyr/include/zephyr/toolchain/common.h" 214 lines --99%--
		+
		+	</pre>


	<!-- EOF -->		<!-- EOF -->

@@ Line 20: / Line 20: @@
 *  https://global.epson.com/products_and_drivers/semicon/products/micro_controller/pdf/lnk_03e.pdf
 *  https://stackoverflow.com/questions/39998485/how-to-access-variable-define-in-linker-script-in-c
 <!-- odne komentar -->

← Older revision		Revision as of 23:38, 5 June 2024
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	* https://stackoverflow.com/questions/9827157/what-does-keep-mean-in-a-linker-script		* https://stackoverflow.com/questions/9827157/what-does-keep-mean-in-a-linker-script
		+
		+	How to place C global variables at a particular address:
		+
		+	* https://global.epson.com/products_and_drivers/semicon/products/micro_controller/pdf/lnk_03e.pdf
		+	* https://stackoverflow.com/questions/39998485/how-to-access-variable-define-in-linker-script-in-c

	<!-- odne komentar -->		<!-- odne komentar -->

← Older revision		Revision as of 23:19, 5 June 2024
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	* https://lld.llvm.org/ELF/linker_script.html . . . LLVM linker documentation		* https://lld.llvm.org/ELF/linker_script.html . . . LLVM linker documentation
		+
		+	Use of 'KEEP' key word in linker scripts:
		+
		+	* https://stackoverflow.com/questions/9827157/what-does-keep-mean-in-a-linker-script

	<!-- odne komentar -->		<!-- odne komentar -->

← Older revision		Revision as of 16:28, 11 March 2024
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	* https://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_chapter/ld_3.html		* https://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_chapter/ld_3.html
		+
		+	* https://lld.llvm.org/ELF/linker_script.html . . . LLVM linker documentation

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