Increasing stack size for C program in Clion

Question

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?

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](http://stackoverflow.com/a/2284691/253056) for code. — Paul R, Apr 10 '17 at 15:17
I believe cygwin also supports `getrlimit`/`setrlimit`, so I suggest giving it a try. — Paul R, Apr 10 '17 at 15:44
I tried copypasting the code in the answer and running recursive function in the end of main, but nothing changed. — arslancharyev31, Apr 10 '17 at 15:57
You may need to adjust `kStackSize` of course - how much stack space do you think that your program needs ? — Paul R, Apr 10 '17 at 15:59
Initial thread stack size is set by the linker. You can ask the linker to increase it at build time. — ThingyWotsit, Apr 10 '17 at 17:13

score 7 · Answer 1 · answered Apr 11 '17 at 10:09

7

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}")

answered Apr 11 '17 at 10:09

arslancharyev31

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This worked for me too. Note that this can also be done using `target_link_libraries()` or `set_target_properties()` as shown [here](https://stackoverflow.com/a/55989674). – Gumby The Green May 05 '19 at 07:19
1

@GumbyTheGreen, Nice solution. Have you considered posting it as an answer, so that I can accept it, instead of selfishly accepting my own solution :) – arslancharyev31 May 06 '19 at 14:25
Done. It's never too late to change your selfish ways... :) No, I actually found your answer helpful as well and am now using that math expression in my own script. – Gumby The Green May 06 '19 at 19:34

score 1 · Answer 2 · answered Apr 10 '17 at 17:51

1

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

answered Apr 10 '17 at 17:51

matzeri

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score 1 · Accepted Answer · answered May 06 '19 at 19:23

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")

score 0 · Answer 4 · answered Mar 08 '23 at 16:24

0

on macos (os x) or linux use

-stack_size like so:

set(CMAKE_EXE_LINKER_FLAGS "-Wl,-stack_size,4000000")

notice: the number is interpreted as hex

answered Mar 08 '23 at 16:24

Yuval Zilber

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Increasing stack size for C program in Clion

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