Increasing stack size for C program in Clion

2
votes

How can one increase the maximum size of a stack for C program that has a deep recursive call? Is there any config for the project where one can specify the stack or heap size for executables?

3
cwindowscygwinclion
If this is on Linux or other *nix OS then you can set the stack size from within your code - see this question and answer for code. - Paul R
I'm doing it on Windows, with Cygwin environment - arslancharyev31
I believe cygwin also supports getrlimit/setrlimit, so I suggest giving it a try. - Paul R
You may need to adjust kStackSize of course - how much stack space do you think that your program needs ? - Paul R
Initial thread stack size is set by the linker. You can ask the linker to increase it at build time. - ThingyWotsit

3 Answers

5
votes

I solved the problem by adding following linker flag in project's CMakeList.txt

MATH(EXPR stack_size "16 * 1024 * 1024") # 16 Mb
set(CMAKE_EXE_LINKER_FLAGS "-Wl,--stack,${stack_size}")
1
votes

To expand on the OP's own answer, the following three CMake commands all work for me on Windows with MinGW/GCC (replace <target> with what you entered into add_executable()):

target_link_libraries(<target> PRIVATE "-Wl,--stack,10000000")

OR

set_target_properties(<target> PROPERTIES LINK_FLAGS -Wl,--stack,10000000)

OR

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--stack,10000000")

According to the CMake documentation, each of these should just add linker flags, not replace any that are already set.

In Visual Studio, you should replace -Wl,--stack, with /STACK: in each of these according to this thread and others. For example:

target_link_libraries(<target> PRIVATE "/STACK:10000000")
1
votes

To check initial stack size

peflags -x <binary>

to set size

peflags -x<size> <binary>

As reference peflags --help and
https://cygwin.com/ml/cygwin/2013-08/msg00318.html