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2018-09-28imx8qm/imx8qxp: enable output debug message to SC consoleAnson Huang
Add support for enabling output debug message to SC console, SC_CONSOLE is used to enable/disable it. Example log output on SC console as below: *** Debug Monitor *** >$ NOTICE: smc_fid is c2000003 imx_pwr_domain_on cluster_id 0, cpu_id 1 cluster:0 core:1 is on imx_pwr_domain_on cluster_id 0, cpu_id 2 cluster:0 core:2 is on imx_pwr_domain_on cluster_id 0, cpu_id 3 cluster:0 core:3 is on imx_pwr_domain_on cluster_id 1, cpu_id 0 cluster:1 core:0 is on imx_pwr_domain_on cluster_id 1, cpu_id 1 cluster:1 core:1 is on Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
2018-02-28Fix MISRA rule 8.4 in common codeRoberto Vargas
Rule 8.4: A compatible declaration shall be visible when an object or function with external linkage is defined. Change-Id: I26e042cb251a6f9590afa1340fdac73e42f23979 Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
2017-07-19Use standard UNIX file:line format in assertRoberto Vargas
This format is understood by almost all the UNIX tools (vi, emacs, acme, ...), and it allows these tools to jump directly to the line where the assert failed. Change-Id: I648fa93c7cc65f911a17dcad5e1a775ac1ae5ed4 Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
2017-05-16Simplify assert() to reduce memory usageAntonio Nino Diaz
The behaviour of assert() now depends on the value of the new optional platform define `PLAT_LOG_LEVEL_ASSERT`. This defaults to `LOG_LEVEL` if not defined by the platform. - If `PLAT_LOG_LEVEL_ASSERT` >= `LOG_LEVEL_VERBOSE`, it prints the file name, line and asserted expression. - If `PLAT_LOG_LEVEL_ASSERT` >= `LOG_LEVEL_INFO`, it prints the file name and line. - If not, it doesn't print anything. Note the old behaviour was to print the function name whereas now it prints the file name. This reduces memory usage because the file name is shared between all assert calls in a given file. Also, the default behaviour in debug builds is to no longer print the asserted expression, greatly reducing the string usage. For FVP debug builds this change saves approximately: No TBBR TBBR BL1 1.6 KB 2.2 KB BL2 1.7 KB 2.1 KB BL31 2.6 KB 3.3 KB Change-Id: I2947569d593df0b25611dc3c7a6096f42155c115 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-05-03Use SPDX license identifiersdp-arm
To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-04-19Add `ENABLE_ASSERTIONS` build optionAntonio Nino Diaz
Add the new build option `ENABLE_ASSERTIONS` that controls whether or not assert functions are compiled out. It defaults to 1 for debug builds and to 0 for release builds. Additionally, a following patch will be done to allow this build option to hide auxiliary code used for the checks done in an `assert()`. This code is is currently under the DEBUG build flag. Assert messages are now only printed if LOG_LEVEL >= LOG_LEVEL_INFO, which is the default for debug builds. This patch also updates the User Guide. Change-Id: I1401530b56bab25561bb0f274529f1d12c5263bc Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-03-31Remove dead loops in assert() in C and ASMAntonio Nino Diaz
The desired behaviour is to call `plat_panic_handler()`, and to use `no_ret` to do so from ASM. Change-Id: I88b2feefa6e6c8f9bf057fd51ee0d2e9fb551e4f Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-03-31Flush console where necessaryAntonio Nino Diaz
Call console_flush() before execution either terminates or leaves an exception level. Fixes: ARM-software/tf-issues#123 Change-Id: I64eeb92effb039f76937ce89f877b68e355588e3 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-01-24stdlib: Import timingsafe_bcmp() from FreeBSDAntonio Nino Diaz
Some side-channel attacks involve an attacker inferring something from the time taken for a memory compare operation to complete, for example when comparing hashes during image authentication. To mitigate this, timingsafe_bcmp() must be used for such operations instead of the standard memcmp(). This function executes in constant time and so doesn't leak any timing information to the caller. Change-Id: I470a723dc3626a0ee6d5e3f7fd48d0a57b8aa5fd Signed-off-by: dp-arm <dimitris.papastamos@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-01-24Add strnlen() to local C librarySandrine Bailleux
This code has been imported and slightly adapted from FreeBSD: https://github.com/freebsd/freebsd/blob/6253393ad8df55730481bf2aafd76bdd6182e2f5/lib/libc/string/strnlen.c Change-Id: Ie5ef5f92e6e904adb88f8628077fdf1d27470eb3 Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
2016-12-13stdlib: Fix signedness issue in memcmp()dp-arm
There is no guarantee on the signedness of char. It can be either signed or unsigned. On ARM it is unsigned and hence this memcmp() implementation works as intended. On other machines, char can be signed (x86 for example). In that case (and assuming a 2's complement implementation), interpreting a bit-pattern of 0xFF as signed char can yield -1. If *s1 is 0 and *s2 is 255 then the difference *s1 - *s2 should be negative. The C integer promotion rules guarantee that the unsigned chars will be converted to int before the operation takes place. The current implementation will return a positive value (0 - (-1)) instead, which is wrong. Fix it by changing the signedness to unsigned to avoid surprises for anyone using this code on non-ARM systems. Change-Id: Ie222fcaa7c0c4272d7a521a6f2f51995fd5130cc Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-06-03Move stdlib header files to include/lib/stdlibDan Handley
* Move stdlib header files from include/stdlib to include/lib/stdlib for consistency with other library headers. * Fix checkpatch paths to continue excluding stdlib files. * Create stdlib.mk to define the stdlib source files and include directories. * Include stdlib.mk from the top level Makefile. * Update stdlib header path in the fip_create Makefile. * Update porting-guide.md with the new paths. Change-Id: Ia92c2dc572e9efb54a783e306b5ceb2ce24d27fa
2016-02-26Compile stdlib C files individuallyAntonio Nino Diaz
All C files of stdlib were included into std.c, which was the file that the Makefile actually compiled. This is a poor way of compiling all the files and, while it may work fine most times, it's discouraged. In this particular case, each C file included its own headers, which were later included into std.c. For example, this caused problems because a duplicated typedef of u_short in both subr_prf.c and types.h. While that may require an issue on its own, this kind of problems are avoided if all C files are as independent as possible. Change-Id: I9a7833fd2933003f19a5d7db921ed8542ea2d04a
2015-01-28stdlib: add missing features to build PolarSSLJuan Castillo
This patch adds the missing features to the C library included in the Trusted Firmware to build PolarSSL: - strcasecmp() function - exit() function - sscanf()* function - time.h header file (and its dependencies) * NOTE: the sscanf() function is not a real implementation. It just returns the number of expected arguments by counting the number of '%' characters present in the formar string. This return value is good enough for PolarSSL because during the certificate parsing only the return value is checked. The certificate validity period is ignored. Change-Id: I43bb3742f26f0bd458272fccc3d72a7f2176ab3d
2014-08-12Rationalize console log outputDan Handley
Fix the following issues with the console log output: * Make sure the welcome string is the first thing in the log output (during normal boot). * Prefix each message with the BL image name so it's clear which BL the output is coming from. * Ensure all output is wrapped in one of the log output macros so it can be easily compiled out if necessary. Change some of the INFO() messages to VERBOSE(), especially in the TSP. * Create some extra NOTICE() and INFO() messages during cold boot. * Remove all usage of \r in log output. Fixes ARM-software/tf-issues#231 Change-Id: Ib24f7acb36ce64bbba549f204b9cde2dbb46c8a3
2014-07-25Implement a leaner printf for Trusted FirmwareSoby Mathew
This patch implements a "tf_printf" which supports only the commonly used format specifiers in Trusted Firmware, which uses a lot less stack space than the stdlib printf function. Fixes ARM-software/tf-issues#116 Change-Id: I7dfa1944f4c1e634b3e2d571f49afe02d109a351
2014-02-17Add IO abstraction frameworkJames Morrissey
This is intended primarily for use as a storage abstraction. It allows operations such as image-loading to be implemented in a platform-independent fashion. Each platform registers a set of IO drivers during initialisation. The platform must also provide a function that will return a device and a specifier that can be used to access specified content. Clients of the API will primarily use device and entity handles. The term "entity" is deliberately vague, to allow for different representations of content accessed using different types of specifier, but will often be interpreted as a "file" where the specifier will normally be its path. This commit builds, but is intended to be paired with a sample implementation of "load_image" using a semi-hosting driver on FVP. Change-Id: Id3b52f1c0eb9ce76b44b99fc6b6460803668cc86
2014-01-30Fix memmove and memcpyJon Medhurst
memmove needs to allow for overlapping memory regions and, together with memcpy, should return the input destination pointer, not the address after the end of the copied data. fixes ARM-software/tf-issues#18 Signed-off-by: Jon Medhurst <tixy@linaro.org>
2014-01-17Update year in copyright text to 2014Dan Handley
Change-Id: Ic7fb61aabae1d515b9e6baf3dd003807ff42da60
2013-12-20Add strchr() and putchar() to local C libraryHarry Liebel
Change-Id: I3659e119a242f8ef828e32bfdf5d0b4b7ac4f716
2013-12-20Create local C library implementation (2/2)Harry Liebel
- This change is split into two separate patches in order to simplify the history as interpreted by 'git'. The split is between the move/rename and addition of new files. - Remove dependency on toolchain C library headers and functions in order to ensure behavioural compatibility between toolchains. - Use FreeBSD as reference for C library implementation. - Do not let GCC use default library include paths. - Remove unused definitions in modified headers and implementations. - Move C library files to 'lib/stdlib' and 'include/stdlib'. - Break std.c functions out into separate files. Change-Id: I3e3d8d992052264d2a02489034ae4c03bf0f5512
2013-12-20Create local C library implementation (1/2)Harry Liebel
- This change is split into two separate patches in order to simplify the history as interpreted by 'git'. The split is between the move/rename and addition of new files. - Remove dependency on toolchain C library headers and functions in order to ensure behavioural compatibility between toolchains. - Use FreeBSD as reference for C library implementation. - Do not let GCC use default library include paths. - Remove unused definitions in modified headers and implementations. - Move C library files to 'lib/stdlib' and 'include/stdlib'. - Break std.c functions out into separate files. Change-Id: I91cddfb3229775f770ad781589670c57d347a154
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