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env/hardening: fix hardening on MIPS.

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Thanks to @chneukirchen for finding the correct solution:

gcc sets -mno-shared by default when compiling non-PIC, and because
we are overriding the builtin specs, this internal rule set for gnu/mips
does not trigger:

gcc/config/mips/gnu-user.h:/* Default to -mno-shared for non-PIC.  */
gcc/config/mips/gnu-user.h:  " %{mshared|mno-shared|fpic|fPIC|fpie|fPIE:;:-mno-shared}"

So that we now use a specific specs file just for mips that sets -mshared for PIC.

This fixes building packages with hardening enabled for MIPS.
This commit is contained in:
Juan RP 2016-04-27 15:01:40 +02:00
parent 0e99e3b00d
commit 882f23cf98
2 changed files with 22 additions and 15 deletions
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8
common/environment/configure/gccspecs/hardened-mips-cc1 Normal file
View file

@ -0,0 +1,8 @@
*cpp_options:
+ %{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-fPIE -mshared}}}}}
*cc1_options:
+ %{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-fPIE -mshared}}}}}
*asm_options:
+ %{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-mshared}}}}}