From: Reiner Huober Date: Tue, 6 Jul 2021 13:02:52 +0000 (+0200) Subject: module: combine constructors in module linker script X-Git-Tag: accepted/tizen/unified/20230118.172025~6423^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4c5afb74d9450edc2e2e37243b469cc278b120d4;p=platform%2Fkernel%2Flinux-rpi.git module: combine constructors in module linker script The constructor code for modules must be aware of init code inside different sections. Newer GCC compilers write constructors in more than one section, e.g. ".ctors.65435". These must be combined into a single ".ctors" section. In the module loader, only the ".ctors" section is searched and the constructors therein are initialized, when CONFIG_CONSTRUCTORS=y is set. Other constructors are ignored. This change combines all ".ctors.*" and the ".ctors" section, if any, in .ko into a single ."ctors" section. For code coverage in GCC, this is necessary to show the code coverage for modules, since code coverage uses such constructors when initializing a module in newer version of GCC. Signed-off-by: Reiner Huober Signed-off-by: Jessica Yu --- diff --git a/scripts/module.lds.S b/scripts/module.lds.S index 04c5685..1d0e1e4 100644 --- a/scripts/module.lds.S +++ b/scripts/module.lds.S @@ -24,6 +24,7 @@ SECTIONS { __kcrctab 0 : { *(SORT(___kcrctab+*)) } __kcrctab_gpl 0 : { *(SORT(___kcrctab_gpl+*)) } + .ctors 0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) } .init_array 0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) } __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) }