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Add C tests and related works (RISC-V GCC + newlib) - #2

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dominiksalvet wants to merge 69 commits into
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add-c-tests
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Add C tests and related works (RISC-V GCC + newlib)#2
dominiksalvet wants to merge 69 commits into
mainfrom
add-c-tests

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@dominiksalvet

@dominiksalvet dominiksalvet commented Jan 25, 2026 •
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Items done within this PR:

  • Add support for RISC-V GCC for C compilation
  • Add support for Newlib C standard library
  • Add C and C library tests
  • Add aux files such as crt0.S, syscalls.c, update linker script
  • Create Docker image for both CI and user playground
  • Simplify CI as such and optimize CI exec time
  • Add simple illegal instructions assertion
  • Fix GTKWave config file
  • Create hierarchical Makefile build system

@dominiksalvet
Add support for hierarchical Makefiles for tests building
67279a4
@dominiksalvet
add base for C tests
c092bf9
@dominiksalvet
add comment about .bss section in HEX files
2c40ffe
@dominiksalvet
refinements for C-based builds
106fed1
@dominiksalvet
do not run tests build dependencies when not changed
df5e4c7
@dominiksalvet
add initial version of crt0.S and update linker script
74c1cc7
@dominiksalvet
add mailbox labels directly to linker script
056340b
@dominiksalvet
add simple sanity check of illegal instructions
37a0815
@dominiksalvet
add support for C programs stack
0709f95
@dominiksalvet
add readelf output to debug target
51493d4
@dominiksalvet
squash memory layout and change mailbox address
8c062a4
@dominiksalvet
add heap to linker script
7ea3ca1
@dominiksalvet
add default main argc and argv values
16b7b06
@dominiksalvet
fix linker RWX issue and change memory arrangement
991d905
@dominiksalvet
change memory addresses arrangement
919dc61
@dominiksalvet
add support for configurable stack and heap sizes
8555cf1
@dominiksalvet
clear sbss and bss using sw instead of sb
df8aff1
@dominiksalvet
prepare makefile build system for test runner
3164af2
@dominiksalvet
add support for global pointer
d788b58
@dominiksalvet
improve global pointer priorities
783e59b
@dominiksalvet
use new Makefile system in test runner
9a8ddc4
@dominiksalvet
Merge remote-tracking branch 'origin/main' into add-c-tests
33bcabc
@dominiksalvet
add unknown values check to CI
ee9aeaa
@dominiksalvet
remove CI trap
088aeb6
@dominiksalvet
add C test for bss section
c091c23
@dominiksalvet
add disassembly inline with source code in comment
b4526da
@dominiksalvet
Handle .text.startup in linker script
79dddbe
@dominiksalvet
add Fibonacci sequence C test
b8f1dfb
@dominiksalvet
Add array sum C test
7f5e7d8
@dominiksalvet
add C bubble sort test
e2d6bca
@dominiksalvet
unify GCC ISA flags propagation
583a634
@dominiksalvet
no limit if MAX_CYCLES==0
75725ae
@dominiksalvet
add support for standard scanf
6726199
@dominiksalvet
call exit() on main return, use tail where applicable
a19e2a3
@dominiksalvet
fix gtkwave config file, add tests todo
130a50c
@dominiksalvet
create first version of Dockerfile, add libc tests to CI
fe26a05 
expecting that this commit CI will fail
@dominiksalvet
try use custom Docker container
043769d
@dominiksalvet
stop using apt cache in CI
04c08f4
@dominiksalvet
test how fast ubuntu docker image is
365f35b
@dominiksalvet
revert previous commit
28a6c56
@dominiksalvet
make Docker image smaller and faster to pull in CI
b18f3df
@dominiksalvet
make Docker image smaller
5f7836e
@dominiksalvet
make Docker image even smaller
d72e163
@dominiksalvet
use v1.0 of super-riscv-env docker image in CI
85a8f8a
@dominiksalvet
rename final docker image
ec50277
@dominiksalvet
sync newlib stdin setup with glibc
86e9676
@dominiksalvet
make linker script more robust in placing sections
6f82716
@dominiksalvet
Use KEEP() for .init section
5fb12d7
@dominiksalvet
add stdin C test + add support for input.txt files
bf898d4
@dominiksalvet
add simple parser test that uses C library
3540b8a
@dominiksalvet
add SAS triangle side/angle computation test
4a9fc65
@dominiksalvet
use more relaxed float compare epsilon
fbf6829
@dominiksalvet
add simple malloc/realloc/free test
dfde4fb
@dominiksalvet
add hello world program also to simple_c
2839cc6
@dominiksalvet
print binary size on debug, do not use heap/stack where not required
b747be3
@dominiksalvet
start using super risc-v docker v1.1
3cec18e
@dominiksalvet dominiksalvet self-assigned this Jan 25, 2026
@dominiksalvet

dominiksalvet commented Feb 22, 2026

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Comment for me: do not forget to update readme

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