Skip to content

Strict overflow in /Libs/Dronecan/platform_specific/socketcan/socketcan.c during sitl_dronecan target build #125

@AsiiaPine

Description

@AsiiaPine

Problem:
The errors occurs because of too strict compilation flag -Wstrict-overflow=5 in cmake/toolchain-ubuntu.cmake

/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c: In function ‘getErrorCode’:
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
  180 | }
      | ^
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c: In function ‘socketcanInit’:
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c: In function ‘socketcanClose’:
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c: In function ‘socketcanTransmit’:
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c: In function ‘socketcanReceive’:
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
/home/asiia/Documents/work/nodes/mini_v2_node/Libs/Dronecan/platform_specific/socketcan/socketcan.c:180:1: error: assuming signed overflow does not occur when determining that expression is always non-negative [-Werror=strict-overflow]
cc1: all warnings being treated as errors

Solution:
Set strict-overflow value less aggressive: -Wstrict-overflow=3
The build becomes successful

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions