ta: TEE_Malloc() and friend: skips layers

Prior to this patch TEE_Malloc(), TEE_Realloc() and TEE_Free() were using
two extra layers implemented on top of the well known malloc(),
realloc(), calloc(

ta: TEE_Malloc() and friend: skips layers

Prior to this patch TEE_Malloc(), TEE_Realloc() and TEE_Free() were using
two extra layers implemented on top of the well known malloc(),
realloc(), calloc() and free() functions. With this patch the extra layers
are skipped.

When compiled for user TAs realloc() clears all memory that otherwise
would be uninitialized memory since it's required by the spec [1] if
TEE_Malloc() is called with the hint TEE_MALLOC_FILL_ZERO. Since that's
the only recognized hint in the spec realloc() assumes that it's always
needed.

[1] GP TEE Internal Core API Specification v1.1

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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libutils: add mempool API

Adds mempool.h with an API suitable for allocating short-lived object.
Based on the internal counterpart in libmpa. This is needed to integrate
other bignum implementations

libutils: add mempool API

Adds mempool.h with an API suitable for allocating short-lived object.
Based on the internal counterpart in libmpa. This is needed to integrate
other bignum implementations.

Reviewed-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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compiler.h: Avoid macro redefinition

__packed, __noreturn, __unused and __used are already defined in
certain environtments, e.g. bionic, so avoid redefining them here.

Signed-off-by: Victor Chong

compiler.h: Avoid macro redefinition

__packed, __noreturn, __unused and __used are already defined in
certain environtments, e.g. bionic, so avoid redefining them here.

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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bget: use struct bpoolset instead of global variables

Move all global variables that are used by bget into struct bpoolset.
"poolset" choosed because term "pool" already used by bget
itself. bget ca

bget: use struct bpoolset instead of global variables

Move all global variables that are used by bget into struct bpoolset.
"poolset" choosed because term "pool" already used by bget
itself. bget can use multiple pools to allocate memory. Now it is
posible to use number of pool sets simultaneosly.

Such feature is needed for virtualization support, because we want
to use separate allocator for OP-TEE kernel memory allocations
and separate allocator for client memory allocations.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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util.h: add CONCAT() macro

Add a macro that can be used to paste evaluated pre-processor tokens
in the code.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carri

util.h: add CONCAT() macro

Add a macro that can be used to paste evaluated pre-processor tokens
in the code.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words

Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words. Therefore, we can safely remove the text from the
files that are owned by Linaro.

Generated by:
spdxify.py --linaro-only --strip-arr optee_os/

Link: [1] https://en.wikipedia.org/wiki/All_rights_reserved
Link: [2] https://reuse.software/practices/
Link: [3] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.p

Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.py --linaro-only --strip-license-text optee_os/

Link: [1] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Reformat copyright/license header in files with an SPDX ID

Some files were committed with an SPDX license identifier before the
rules were defined [1]. Reformat them accordingly.

[1] documentation/

Reformat copyright/license header in files with an SPDX ID

Some files were committed with an SPDX license identifier before the
rules were defined [1]. Reformat them accordingly.

[1] documentation/copyright_and_license_headers.rst

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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trace: make output more compact

The new format for traces are:
<type>/<where>:<thread_id> [<func:line>] <message>

<type>:
D = DEBUG
E = ERROR
I = INFO
F = FLOW

<where>:
TA = Trusted Ap

trace: make output more compact

The new format for traces are:
<type>/<where>:<thread_id> [<func:line>] <message>

<type>:
D = DEBUG
E = ERROR
I = INFO
F = FLOW

<where>:
TA = Trusted Application
TC = TEE Core

I.e, it outputs messages like this:
D/TC:00 ta_load:316 ELF load address 0x101000
etc

Thread ID will either take a single or two digits depending on the
number of threads in use.

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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libutils: add atomic load, store and cas

* Adds atomic_load_uint() and atomic_load_u32()
* Adds atomic_store_uint() and atomic_store_u32()
* Adds atomic_cas_uint() and atomic_cas_u32(), compare and

libutils: add atomic load, store and cas

* Adds atomic_load_uint() and atomic_load_u32()
* Adds atomic_store_uint() and atomic_store_u32()
* Adds atomic_cas_uint() and atomic_cas_u32(), compare and store

Reviewed-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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optee: use correct type to hold exceptions state

cpu_spin_lock_xsave() returns exceptions state in uin32_t, not
in unsigned int.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-b

optee: use correct type to hold exceptions state

cpu_spin_lock_xsave() returns exceptions state in uin32_t, not
in unsigned int.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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Keep assembly functions in separate sections

To get a more fine grained selection of which area (init, paged,
unpaged) an assembly function is assigned do the equivalent of
-ffunction-sections but i

Keep assembly functions in separate sections

To get a more fine grained selection of which area (init, paged,
unpaged) an assembly function is assigned do the equivalent of
-ffunction-sections but in assembly.

Some functions has to be in specific places in the binary for a
successful boot, link script is updated accordingly.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Util: add ASM version ROUNDDOWN and ROUNDUP definitions

Add ROUNDDOWN and ROUNDUP definitions for ASM version which are
different from C versions

Signed-off-by: Kevin Peng <kevinp@marvell.com>
Revi

Util: add ASM version ROUNDDOWN and ROUNDUP definitions

Add ROUNDDOWN and ROUNDUP definitions for ASM version which are
different from C versions

Signed-off-by: Kevin Peng <kevinp@marvell.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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Util: add some useful SIZE definitions

Add some useful SIZE_XX definitions like 4k, 1M, etc...

Signed-off-by: Kevin Peng <kevinp@marvell.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.

Util: add some useful SIZE definitions

Add some useful SIZE_XX definitions like 4k, 1M, etc...

Signed-off-by: Kevin Peng <kevinp@marvell.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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Add CFG_CORE_LARGE_PHYS_ADDR for 64bit paddr_t

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

libutils: malloc: use asan_memset_unchecked()

The malloc implementation uses the new asan_memset_unchecked() function
internally instead of memset() to avoid unexpected asserts when the
address sani

libutils: malloc: use asan_memset_unchecked()

The malloc implementation uses the new asan_memset_unchecked() function
internally instead of memset() to avoid unexpected asserts when the
address sanitizer is enabled.

bget() tags the requested amount of memory allocated, but eventual
padding etc isn't tagged so writes there from instrumented functions,
for instance the normal memset(), will be caught.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Add support for early Trusted Applications

Early TAs are user-mode Trusted Applications that are embedded at link
time in the TEE binary. A special read-only data section is used to
store them (.rod

Add support for early Trusted Applications

Early TAs are user-mode Trusted Applications that are embedded at link
time in the TEE binary. A special read-only data section is used to
store them (.rodata.early_ta). A Python script takes care of converting
the TAs into a C source file with the proper linker section attribute.

The feature is disabled by default. To enable it, the paths to the TA
binaries have to be given in $(EARLY_TA_PATHS). They should be ELF
files. Typical build steps:
$ make ... CFG_EARLY_TA=y ta_dev_kit # (1)
$ # ... build the TAs ... # (2)
$ make ... EARLY_TA_PATHS=path/to/<uuid>.stripped.elf # (3)
Notes:
- Setting CFG_EARLY_TA=y during the first step (1) is not necessary,
but it will avoid rebuilding libraries during the third step (3)
- CFG_EARLY_TA is automatically enabled when EARLY_TA_PATHS is non-empty
in step (3)
- Several TAs may be given in $(EARLY_TA_PATHS) (3)

Early TAs are given a higher load priority than REE FS TAs, since they
should be available even before tee-supplicant is ready.

Suggested-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: clean and unwind arm32_aeabi_[l]divmod_a32.S

Division support can be used in kernel land and user land. Kernel
land already support unwind on assembly (kernel/unwind.h) but
userland do not. Fo

core: clean and unwind arm32_aeabi_[l]divmod_a32.S

Division support can be used in kernel land and user land. Kernel
land already support unwind on assembly (kernel/unwind.h) but
userland do not. For simplicity of the userland part, simply
define local macros to support unwind in both conditions.

Clean ldivmod from locally defined macros already provided by arm.S.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: fix memory address comparison

Addresses are unsigned values. Subtracting address values results
in an unsigned value. Since qsort comparison function expects a signed
integer return value, the

core: fix memory address comparison

Addresses are unsigned values. Subtracting address values results
in an unsigned value. Since qsort comparison function expects a signed
integer return value, the unsigned address subtraction value gets
signed and can produce a wrong result. This change overcomes the issue
by producing a +1/0/-1 signed value based on the address unsigned
values comparison.

Introduce CMP_TRILEAN() in util.h to implement the operation.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (b2260)
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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libutee: provide an implementation of putchar()

Calling printf() from a TA to print a single character results in a
linker error:

39 TEE_Result TA_CreateEntryPoint(void)
40 {
41 pr

libutee: provide an implementation of putchar()

Calling printf() from a TA to print a single character results in a
linker error:

39 TEE_Result TA_CreateEntryPoint(void)
40 {
41 printf(".");
42 /* ... */
43 }

hello_world_ta.o: In function `TA_CreateEntryPoint':
hello_world_ta.c:41: undefined reference to `putchar'

In this case, the compiler has optimized the printf() call into a call
to putchar(), assuming that we have a C library and that it complies to
the relevant standards (so that printf() and putchar() may be used
interchangeably).

One way to fix the issue is to prevent such optimizations by using
-fno-builtin or -ffreestanding, at the cost of slightly larger code
size and possibly reduced performance.

Another option is to simply provide the missing putchar() function. It
is the purpose of this commit.

Reported-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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trace.c: show file/line info for flow, debug and error messages

Since commit f4aa5b11f9a3 ("Update trace format to be less verbose in
INFO and ERROR levels"), INFO and ERROR messages don't show sour

trace.c: show file/line info for flow, debug and error messages

Since commit f4aa5b11f9a3 ("Update trace format to be less verbose in
INFO and ERROR levels"), INFO and ERROR messages don't show source file
and line information by default, while message with lower severity
(DEBUG and FLOW) do contain such information. While it is OK for INFO,
it turns out to be inconvenient for ERRORs during development, because
one typically wants to be able to quickly locate the source of errors.
This patch fixes the problem by introducing a mask rather than a level
to control the long output format. This allows individual selection of
which level should use a long vs. short format.
The compile-time setting CFG_MSG_LONG_PREFIX_THRESHOLD is replaced by
CFG_MSG_LONG_PREFIX_MASK with default value 0x1a (= BIT(TRACE_ERROR) |
BIT(TRACE_DEBUG) | BIT(TRACE_FLOW)).

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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libutils: sparse fix: DETECTNULL() macro

Fixes the DETECTNULL() macro used in certain functions imported from
newlib.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jens Wik

libutils: sparse fix: DETECTNULL() macro

Fixes the DETECTNULL() macro used in certain functions imported from
newlib.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Sparse fix: _assert_break()

Moves the __noreturn attribute for declaration of _assert_break() to
before the function name instead which enables sparse to recognize the
attribute properly.

Reviewed-

Sparse fix: _assert_break()

Moves the __noreturn attribute for declaration of _assert_break() to
before the function name instead which enables sparse to recognize the
attribute properly.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Sparse fix: setjmp.h

Fixes all sparse warnings in setjmp.h

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>