freedom-e-sdk/software/dhrystone/Makefile, branch useTimerIRQ

Update examples to pickup licenses

2019-05-30T02:19:33+00:00

Setup default options for dhrystone release.

2019-05-23T02:58:17+00:00

Update Dhrystone and metal to remove nano & pick memory.h

2019-04-30T17:20:23+00:00

Making dhrystone public

2019-03-26T22:13:59+00:00

Remove legacy examples

2019-03-07T17:29:05+00:00

Signed-off-by: Nathaniel Graff

Speed up Dhrystone on the HiFive1

2017-11-17T23:24:01+00:00

There's a handful of things that went wrong here:

* The read-only data sections were mapped to flash, which is very slow.
  I just put them in the data segment, so they end up in the scratchpad.
  This is about a 10x hit, so it's really important.
* The toolchain was an old version, which didn't have a fast memcpy
  implementation on 32-bit systems.  This is about a 2x hit.
* Some compiler flags were incorrect, including
    * -Os instead of -O3
    * Missing -mexplicit-relocs
    * Missing -DNOENUM
    * Missing -falign-functions=4
  I haven't checked how much those hurt

With this, I get

$ make software BOARD=freedom-e300-hifive1 PROGRAM=dhrystone LINK_TARGET=dhrystone
$ make upload BOARD=freedom-e300-hifive1 PROGRAM=dhrystone LINK_TARGET=dhrystone
Execution starts, 10000000 runs through Dhrystone
Execution ends

Final values of the variables used in the benchmark:

Int_Glob:            5
        should be:   5
Bool_Glob:           1
        should be:   1
Ch_1_Glob:           A
        should be:   A
Ch_2_Glob:           B
        should be:   B
Arr_1_Glob[8]:       7
        should be:   7
Arr_2_Glob[8][7]:    10000010
        should be:   Number_Of_Runs + 10
Ptr_Glob->
  Ptr_Comp:          -2147470264
        should be:   (implementation-dependent)
  Discr:             0
        should be:   0
  Enum_Comp:         2
        should be:   2
  Int_Comp:          17
        should be:   17
  Str_Comp:          DHRYSTONE PROGRAM, SOME STRING
        should be:   DHRYSTONE PROGRAM, SOME STRING
Next_Ptr_Glob->
  Ptr_Comp:          -2147470264
        should be:   (implementation-dependent), same as above
  Discr:             0
        should be:   0
  Enum_Comp:         1
        should be:   1
  Int_Comp:          18
        should be:   18
  Str_Comp:          DHRYSTONE PROGRAM, SOME STRING
        should be:   DHRYSTONE PROGRAM, SOME STRING
Int_1_Loc:           5
        should be:   5
Int_2_Loc:           13
        should be:   13
Int_3_Loc:           7
        should be:   7
Enum_Loc:            1
        should be:   1
Str_1_Loc:           DHRYSTONE PROGRAM, 1'ST STRING
        should be:   DHRYSTONE PROGRAM, 1'ST STRING
Str_2_Loc:           DHRYSTONE PROGRAM, 2'ND STRING
        should be:   DHRYSTONE PROGRAM, 2'ND STRING

Microseconds for one run through Dhrystone: 1.3
Dhrystones per Second:                      714285.6

which is 1.55 DMIPS/MHz at 262 MHz.  It's still a bit slower than our
current stuff, but I don't remember what was actually in the HiFive1 so
I'm not sure what we should be getting.  I verified the clock is
accurate with a stopwatch.  I haven't bothered to go look through the
binary, but I think we're about 10 cycles off so it should be managable.

Update SDK For E31/E51 Coreplex IP Evaluation

2017-05-04T12:46:05+00:00

Compile Dhrystone without RVC

2017-01-04T02:53:37+00:00

Branch target misalignment reduces performance by about 10%.

Refactor libc stubs into libwrap

2016-12-14T20:23:40+00:00

The --wrap feature of GNU ld supports a cleaner framework for linking in
alternative implementations of libc functions without cpp hacks.
Place wrappers in separate object files to reduce static code size.

Bump Everything to Match new Freedom Repo (#8)

2016-11-30T18:55:18+00:00

* Bump tool versions

* Use version of OpenOCD which can load programs into flash

* Bump OpenOCD to Handle ISSI Flash Programming

* Update Header files

* add initial support for hifive1

* add dhrystone

* add clock helper functions

* add openocd cfg file

* Demo_GPIO checkpoint -- compiles and runs but no blinky LEDs

* Remove riscv-tests submodule

* Remove FPGA files, as they are no longer relevant to this Repository

* Add openocd_upload script

* Add Pinmux Mappings

Adding the pinmux mappings to the Platform Header

* Add IOF Mappings to platform header

* Re-order the IOF Mapping declarations

* Add more useful things to platform headers

* Get GPIO Demo working again (except interrupts aren't working)

* Update README with more OS packages needed

A bare ubuntu-16.04.1-server installation could not run `make tools`
without these packages.

* bump openocd to get SCKDIV fix

* Remove duplicated help text for run_debug target

* Add package to README that is needed for openocd build

Without this package I was seeing two different failures like below
when running `make tools`.

/home/scottj/freedom-e-sdk/openocd/configure: line 4533: syntax error near unexpected token `0.23'
/home/scottj/freedom-e-sdk/openocd/configure: line 4533: `PKG_PROG_PKG_CONFIG(0.23)'
Makefile:70: recipe for target '/home/scottj/freedom-e-sdk/toolchain/bin/openocd' failed
make: *** [/home/scottj/freedom-e-sdk/toolchain/bin/openocd] Error 2

... or ...

+ autoconf
configure.ac:12: error: possibly undefined macro: AC_MSG_WARN
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:240: error: possibly undefined macro: AC_MSG_NOTICE
configure.ac:342: error: possibly undefined macro: AC_DEFINE
Makefile:70: recipe for target '/home/scottj/freedom-e-sdk/toolchain/bin/openocd' failed
make: *** [/home/scottj/freedom-e-sdk/toolchain/bin/openocd] Error 1

* Bump OpenOCD to not overwrite SCKDIV when flashing

* Roll back CoreMark