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| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2019-03-21 12:40:35 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-03-21 12:40:35 +0000 |
| commit | 46d58f80afc994f522db4340270f1bcbb0c56fb1 (patch) | |
| tree | 0d3e50265b2c2475716550b34c91892709c27a77 /docs | |
| parent | cc0dcf428f047454d96461aa06327cfb528e7270 (diff) | |
| parent | ae2e01b8760618c374a605dbe4898945595cb136 (diff) | |
| download | platform_external_arm-trusted-firmware-46d58f80afc994f522db4340270f1bcbb0c56fb1.tar.gz platform_external_arm-trusted-firmware-46d58f80afc994f522db4340270f1bcbb0c56fb1.tar.bz2 platform_external_arm-trusted-firmware-46d58f80afc994f522db4340270f1bcbb0c56fb1.zip | |
Merge pull request #1902 from jts-arm/romlib
ROMLIB bug fixes
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/romlib-design.rst | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/docs/romlib-design.rst b/docs/romlib-design.rst index 34a7980be..41957214d 100644 --- a/docs/romlib-design.rst +++ b/docs/romlib-design.rst @@ -85,12 +85,12 @@ ROM" to work: 1. ``gentbl.sh`` - Generates the jump table by parsing the index file. 2. ``genvar.sh`` - Generates the jump table global variable (**not** the jump -table itself) with the absolute address in ROM. This global variable is, -basically, a pointer to the jump table. + table itself) with the absolute address in ROM. This global variable is, + basically, a pointer to the jump table. 3. ``genwrappers.sh`` - Generates a wrapper function for each entry in the index -file except for the ones that contain the keyword ``patch``. The generated -wrapper file is called ``<lib>_<fn_name>.S``. + file except for the ones that contain the keyword ``patch``. The generated + wrapper file is called ``<lib>_<fn_name>.S``. Patching of functions in library at ROM ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -108,6 +108,8 @@ Build library at ROM ~~~~~~~~~~~~~~~~~~~~~ The environment variable ``CROSS_COMPILE`` must be set as per the user guide. +In the below example the usage of ROMLIB together with mbed TLS is demonstrated +to showcase the benefits of library at ROM - it's not mandatory. :: @@ -120,6 +122,12 @@ The environment variable ``CROSS_COMPILE`` must be set as per the user guide. USE_ROMLIB=1 \ all fip +Known issue +----------- +When building library at ROM, a clean build is always required. This is +necessary when changes are made to the index files, e.g. adding new functions, +patching existing ones etc. + -------------- *Copyright (c) 2019, Arm Limited. All rights reserved.* |