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mbedtls/library
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Roberto Vargas 7decfe8c1e Convert mbedtls_free and mbedtls_calloc into functions 
When MBEDTLS_PLATFORM_MEMORY is defined but MBEDTLS_PLATFORM_FREE_MACRO or
MBEDTLS_PLATFORM_CALLOC_MACRO are not defined then the actual functions
used to allocate and free memory are stored in function pointers.
These pointers are exposed to the caller, and it means that the caller
and the library have to share a data section.

In TF-A, we execute in a very constrained environment, where some images
are executed from ROM and other images are executed from SRAM. The
images that are executed from ROM cannot be modified. The SRAM size
is very small and we are moving libraries to the ROM that can be shared
between the different SRAM images.  These SRAM images could import all the
symbols used in mbedtls, but it would create an undesirable hard binary
dependency between the different images. For this reason, all the library
functions in ROM are accesed using a jump table whose base address is
known, allowing the images to execute with different versions of the ROM.

This commit changes the function pointers to actual functions,
so that the SRAM images only have to use the new exported symbols
(mbedtls_calloc and mbedtls_free) using the jump table. In
our scenario, mbedtls_platform_set_calloc_free is called from
mbedtls_memory_buffer_alloc_init which initializes the function pointers
to the internal buffer_alloc_calloc and buffer_alloc_free functions.

No functional changes to mbedtls_memory_buffer_alloc_init.

Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
2018-06-13 09:17:59 +01:00
..
.gitignore Split libs with make + general make cleanups 2015-06-25 10:59:56 +02:00
aes.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
aesni.c Warn if using a memory sanitizer on AESNI 2018-04-05 15:37:38 +02:00
arc4.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
asn1parse.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
asn1write.c Fix minor code style issues 2018-05-15 09:21:57 +01:00
base64.c Add comment to integer overflow fix in base64.c 2017-02-15 23:31:07 +02:00
bignum.c Merge remote-tracking branch 'upstream-restricted/pr/421' into development-proposed 2018-05-04 14:39:24 +01:00
blowfish.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
camellia.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ccm.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
certs.c Undo API change from SHA1 deprecation 2017-07-27 21:44:33 +01:00
cipher.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
cipher_wrap.c Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
cmac.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
CMakeLists.txt Merge remote-tracking branch 'upstream-restricted/pr/421' into development-proposed 2018-05-04 14:39:24 +01:00
ctr_drbg.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
debug.c Fix compilation error with Mingw32 2017-09-06 17:51:14 +03:00
des.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
dhm.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ecdh.c Address PR cpomments reviews 2017-10-10 19:04:27 +03:00
ecdsa.c Clarify the use of MBEDTLS_ERR_PK_SIG_LEN_MISMATCH 2018-03-30 18:43:16 +02:00
ecjpake.c Fix minor code style issues 2018-05-15 09:21:57 +01:00
ecp.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ecp_curves.c Merge branch 'pr_348' into development-proposed 2018-04-04 09:18:27 +02:00
entropy.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
entropy_poll.c Added checking for QNX operating system to make mbedtls build on QNX 2016-08-18 07:55:05 +02:00
error.c Regenerate errors after ecp.h updates 2018-04-24 14:13:15 +01:00
gcm.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
havege.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
hmac_drbg.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
Makefile Merge remote-tracking branch 'upstream-restricted/pr/421' into development-proposed 2018-05-04 14:39:24 +01:00
md.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md2.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md4.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md5.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md_wrap.c New MD API: rename functions from _ext to _ret 2018-01-22 11:54:42 +01:00
memory_buffer_alloc.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
net_sockets.c Make the memset call prior to FD_ZERO conditional to needing it 2018-04-05 14:55:47 +02:00
oid.c pkcs5v2: add support for additional hmacSHA algorithms 2018-02-08 17:18:15 +08:00
padlock.c Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
pem.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
pk.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
pk_wrap.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
pkcs5.c Fix coding style in pkcs5.c preprocessor directives 2018-03-27 20:53:12 +01:00
pkcs11.c Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
pkcs12.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
pkparse.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
pkwrite.c Adapt PK test suite to use new interface 2017-08-23 16:17:27 +01:00
platform.c Convert mbedtls_free and mbedtls_calloc into functions 2018-06-13 09:17:59 +01:00
platform_util.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ripemd160.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
rsa.c Merge remote-tracking branch 'upstream-restricted/pr/421' into development-proposed 2018-05-04 14:39:24 +01:00
rsa_internal.c Add explicit type cast to avoid truncation warning 2018-01-03 09:27:40 +00:00
sha1.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
sha256.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
sha512.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ssl_cache.c Address PR review comments 2017-10-29 17:53:52 +02:00
ssl_ciphersuites.c Undo API change 2017-07-27 21:44:33 +01:00
ssl_cli.c Fix minor code style issues 2018-05-15 09:21:57 +01:00
ssl_cookie.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ssl_srv.c Remove preprocessor directives around platform_util.h include 2018-04-24 08:40:46 -05:00
ssl_ticket.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ssl_tls.c Fix minor code style issues 2018-05-15 09:21:57 +01:00
threading.c Do not define and initialize global mutexes on configurations that do not use them. 2018-03-21 15:01:55 +00:00
timing.c Merge remote-tracking branch 'upstream-public/pr/572' into development-proposed 2018-03-27 16:42:20 +01:00
version.c Fix missing void argument declarations #678 2016-11-04 23:05:56 +01:00
version_features.c Basic support for Curve448, similar to the current level of support for Curve25519 2018-03-29 14:29:06 +01:00
x509.c Correctly handle leap year in x509_date_is_valid() 2017-10-12 23:21:37 +01:00
x509_create.c Fix other occurrences of same bounds check issue 2015-10-21 12:50:45 +02:00
x509_crl.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
x509_crt.c Fix minor code style issues 2018-05-15 09:21:57 +01:00
x509_csr.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
x509write_crt.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
x509write_csr.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
xtea.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00