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ri5cy debugger access to memory and breakpoint facility |
Posted by: lightning_fingers - 12-27-2018, 09:30 AM - Forum: PULP General questions
- No Replies
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![](https://pulp-platform.org/community/images/default_avatar.png) |
Hello again!
The documentation for the ri5cy core, although getting better, is still a little "light" on details for the debugger hardware.
Is there any facility available for accessing memory whilst in debugging mode?
if not, how is it proposed that memory should be accessed when debugging?
what would be the suggested mechanism for implementing a breakpoint mechanism such the executing programme can be run up to a point then the debugger activated?
(I already have a simulation where I can single step the core at a specified simulation clock count, in reality this needs to be at a specified PC).
Thanks in advance
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update to ri5cy core interrupt system and toolchain |
Posted by: lightning_fingers - 12-27-2018, 09:25 AM - Forum: PULP General questions
- Replies (4)
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![](https://pulp-platform.org/community/images/default_avatar.png) |
Hello!
I am investigating using the ri5cy core for a commercial application.
Quite some time ago I looked into the ri5cy core via the Embecosm githubu fork:
https://github.com/embecosm/ri5cy
This seems to (now) be a quite old version of the core (32 interrupt inputs, much different csr implementation).
So, I've updated my core payload with the latest ri5cy rtl build.
I now have problems with my prototype interrupt code.
In C I have:
in "main()" {
set_csr (0x300, 0x00000009); //enable interrupts?
write_csr(0x305, my_isr); // isr address?
// big long delay
for (int i=0;i<10000;i++) asm("NOP");
}
void __attribute__ ((interrupt())) my_isr (){
*simresult = (unsigned short int) 0xF111; // flag result
}
which gives me:
00000300 <my_isr>:
300: ff010113 addi sp,sp,-16
304: 00f12423 sw a5,8(sp)
308: 00e12623 sw a4,12(sp)
30c: 40002703 lw a4,1024(zero) # 400 <simresult>
310: 0000f7b7 lui a5,0xf
314: 11178793 addi a5,a5,273 # f111 <_end+0xece5>
318: 00f72023 sw a5,0(a4)
31c: 00c12703 lw a4,12(sp)
320: 00812783 lw a5,8(sp)
324: 01010113 addi sp,sp,16
328: 10000073 eret
The compiler is inserting the correct isr handling code......
But when simulated with the latest ri5cy core I get:
# - DGB - write 0 into CTRL
# 2465870000 ps: Illegal instruction (core 0) at PC 0x00000328:
# 2469762000 ps: Illegal instruction (core 0) at PC 0x00000328:
I read in the riscv documentation that eret should now probably be an mret.
(At present I am using the embecosm modified toolchain (gcc).)
where can I download the "official" build gcc build tools for the latest ri5cy core (including all of the ri5cy additions like the hardware loop functionality)?
Many thanks in advance
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hero-sdk for ZynqMP |
Posted by: dave.mcewan - 12-21-2018, 03:57 PM - Forum: PULP General questions
- Replies (7)
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![](https://pulp-platform.org/community/uploads/avatars/avatar_123.jpg?dateline=1544643082) |
Hello again,
I'm trying to build hero-sdk, specifically hero-gcc-toolchain, for use on a ZCU102 and I'm running into some errors.
The first error is when compiling aeabi_lcsts.c:
Code: hero-sdk/hero-gcc-toolchain/install/arm-linux-gnueabihf/libc/usr/include/asm/sigcontext.h:53:2: error: unknown type name '__uint128_t'
With some googling this *may* be related to CFLAGS with a -std=c11 instead of -std=gnu11. However the output from make says I'm already using gnu11:
Code: arm-linux-gnueabihf-gcc ../sysdeps/arm/aeabi_lcsts.c -c -std=gnu11 -fgnu89-inline [... snip ...]
To retarget the host CPU architecture I've made the following changes in hero-sdk:
Code: diff --git a/scripts/hero-z-7045-env.sh b/scripts/hero-z-7045-env.sh
index 0c7af43..31bba7d 100755
--- a/scripts/hero-z-7045-env.sh
+++ b/scripts/hero-z-7045-env.sh
@@ -36,11 +36,11 @@ export HERO_TARGET_PATH_DRIVER="${HERO_TARGET_PATH}/drivers"
export HERO_TARGET_PATH_LIB="${HERO_TARGET_PATH}/libs"
# Host-side platform config
-export PLATFORM="2"
-export BOARD="zc706"
+export PLATFORM="5"
+export BOARD="zcu102"
# Host-side user-space config
-export ARCH="arm"
+export ARCH="arm64"
export CROSS_COMPILE="arm-linux-gnueabihf-"
export HERO_LIBPULP_DIR=`realpath hero-support/libpulp`
And in hero-gcc-toolchain:
Code: diff --git a/scripts/hero_arm_toolchain_env.sh b/scripts/hero_arm_toolchain_env.sh
index 6cedabe..67a3760 100755
--- a/scripts/hero_arm_toolchain_env.sh
+++ b/scripts/hero_arm_toolchain_env.sh
@@ -19,7 +19,7 @@
HERO_HOST_TARGET=arm-linux-gnueabihf
HERO_BUILD_TARGET=x86_64-linux-gnu
-HERO_HOST_LINUX_ARCH=arm
+HERO_HOST_LINUX_ARCH=arm64
HERO_HOST_GLIBC=glibc-2.26
HERO_HOST_FPU_CONFIG="--with-fpu=neon-fp16 --with-float=hard"
Build platform is Ubuntu 16.04.
If I leave scripts/hero-z-7045-env.sh so that it's configured for ZC706 with ARM7 host cores then all parts of the hero-sdk build process complete successfully.
Since there appears to be some code related to ZynqMP in the makefiles, is there somebody here who has successfully built for this target?
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Busybox Version |
Posted by: Muhammad Usman - 12-20-2018, 07:21 PM - Forum: PULP General questions
- Replies (1)
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![](https://pulp-platform.org/community/images/default_avatar.png) |
Hi,
Can you help me resolve this Busybox version issue?
Code: cd buildroot && make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- -j4
make[1]: Entering directory '/home/usman/risc-v/pulpino_2015-4/pulpino/fpga/sw/buildroot'
>>> toolchain-external undefined Extracting
>>> toolchain-external undefined Patching
>>> toolchain-external undefined Configuring
Incorrect selection of kernel headers: expected 3.16.x, got 3.19.x
package/pkg-generic.mk:146: recipe for target '/home/usman/risc-v/pulpino_2015-4/pulpino/fpga/sw/buildroot/output/build/toolchain-external-undefined/.stamp_configured' failed
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hero-sdk build process |
Posted by: dave.mcewan - 12-12-2018, 07:22 PM - Forum: PULP General questions
- Replies (5)
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![](https://pulp-platform.org/community/uploads/avatars/avatar_123.jpg?dateline=1544643082) |
Hello,
I'm building the hero-sdk as per the github instructions but it's failing at the pulp-sdk stage.
Actually I'm trying on 2 systems, Debian 9.2 and Ubuntu 16.04.
Both have the same result and symptoms.
It looks like some files which should be copied from ./pulp-sdk/json-tools to ./pulp-sdk/build/sdk/json-tools are missing. I.E there's no Makefile so make doesn't know what to do.
Anybody on here have an idea what's going wrong?
Code: $ ./hero-z-7045-builder -p
Configuring HERO SDK at: /home/user0/hero-sdk
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Warning: Cannot set compiler and linker flags for libgomp plugin and mkoffload. Missing environment variables PULP_SDK_INSTALL and/or HERO_SUPPORT_DIR!
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Configuring HERO SDK at: /home/user0/hero-sdk
Your PATH is correctly set. Skipping installation.
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Warning: Cannot set compiler and linker flags for libgomp plugin and mkoffload. Missing environment variables PULP_SDK_INSTALL and/or HERO_SUPPORT_DIR!
Your PATH is correctly set. Skipping installation.
Your LD_LIBRARY_PATH is correctly set. Skipping installation.
Configuring Pulp project at /home/user0/hero-sdk/pulp-sdk
sdk:json-tools:build: make all install
#### Building in /home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools
#### Release type is RelWithDebInfo
#### Installing to /home/user0/hero-sdk/pulp-sdk/pkg/sdk/dev/install/ws
( cd /home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools ; make all VERBOSE=0 )
make[1]: Entering directory '/home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools'
make[1]: *** No rule to make target 'all'. Stop.
make[1]: Leaving directory '/home/user0/hero-sdk/pulp-sdk/build/sdk/json-tools'
Makefile:46: recipe for target 'all' failed
make: *** [all] Error 2
Reached EOF with exit status 2
FATAL ERROR: the command 'build' has failed
And on STDERR:
Code: No LSB modules are available.
No LSB modules are available.
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