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Fix implicit function declaration warnings in error.c by including string.h #3866

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noonfom opened this issue Nov 9, 2020 · 0 comments · Fixed by #3867
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Fix implicit function declaration warnings in error.c by including string.h #3866

noonfom opened this issue Nov 9, 2020 · 0 comments · Fixed by #3867
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bug component-platform Portability layer and build scripts

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noonfom commented Nov 9, 2020 •
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Description

Compiling mbed-os-6.4.0 results in warnings about implicit declarations of memset and strlen in error.c on lines 224 and 581, respectively. This is because string.h is not included in the source file. Actually, the include for string.h is embedded in a conditional compilation directive on line 28: string.h will be included if the MBEDTLS_ERROR_STRERROR_DUMMY macro is defined. However, the MBEDTLS_ERROR_STRERROR_DUMMY macro is not defined.
@gilles-peskine-arm gilles-peskine-arm added bug component-platform Portability layer and build scripts Product Backlog labels Nov 9, 2020
@gilles-peskine-arm gilles-peskine-arm self-assigned this Nov 9, 2020
gilles-peskine-arm added a commit to gilles-peskine-arm/mbedtls that referenced this issue Nov 9, 2020
@gilles-peskine-arm
Fix conditions for including string.h in error.c
b64e0fe 
<string.h> is actually needed when MBEDTLS_ERROR_C is enabled and not
when only MBEDTLS_ERROR_STRERROR_DUMMY is enabled.

Fix Mbed-TLS#3866.

Signed-off-by: Gilles Peskine <[email protected]>
@gilles-peskine-arm gilles-peskine-arm mentioned this issue Nov 9, 2020
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Fix several configuration-related issues gilles-peskine-arm/mbedtls
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