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authorTristan Gingold <gingold@adacore.com>2015-06-05 15:09:31 +0200
committerTristan Gingold <gingold@adacore.com>2015-06-12 11:24:36 +0200
commit3604cb1f8ca4a926039a9540d03bb224d84af3e1 (patch)
tree962d40b3cb6bd43d06960653b70af6d73a207e66 /ld/ld.texinfo
parentdb7858e227f3951c665410314fca62c77349ac24 (diff)
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Add new ld option: --print-memory-usage
ld/ * NEWS: Mention new option. * lexsup.c (parse_args): Handle --print-memory-usage. (ld_options): Add --print-memory-usage. * ldmain.c (main): Call lang_print_memory_usage. * ldlex.h (enum option_values): Add OPTION_PRINT_MEMORY_USAGE. * ldlang.h: Add prototype of lang_print_memory_usage. * ldlang.c (lang_print_memory_size, lang_print_memory_usage): New functions. * ld.texinfo (Options): Document --print-memory-usage. * ld.h (args_type): Add print_memory_usage field. ld/testsuite/ * ld-scripts/print-memory-usage-1.t, * ld-scripts/print-memory-usage-1.s, * ld-scripts/print-memory-usage-1.l, * ld-scripts/print-memory-usage-2.t, * ld-scripts/print-memory-usage-2.l, * ld-scripts/print-memory-usage-3.s, * ld-scripts/print-memory-usage-3.t, * ld-scripts/print-memory-usage-3.l, * ld-scripts/print-memory-usage.t: New tests. * ld-scripts/print-memory-usage.exp: Run them.
Diffstat (limited to 'ld/ld.texinfo')
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diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 0c5f884..e12b64a 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -1472,6 +1472,21 @@ Print the name of the default output format (perhaps influenced by
other command-line options). This is the string that would appear
in an @code{OUTPUT_FORMAT} linker script command (@pxref{File Commands}).
+@kindex --print-memory-usage
+@cindex memory usage
+@item --print-memory-usage
+Print used size, total size and used size of memory regions created with
+the @ref{MEMORY} command. This is useful on embedded targets to have a
+quick view of amount of free memory. The format of the output has one
+headline and one line per region. It is both human readable and easily
+parsable by tools. Here is an example of an output:
+
+@smallexample
+Memory region Used Size Region Size %age Used
+ ROM: 256 KB 1 MB 25.00%
+ RAM: 32 B 2 GB 0.00%
+@end smallexample
+
@cindex help
@cindex usage
@kindex --help