From b57e6e182cc596dd2e346b5799b57014ced47229 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 17 Mar 2016 15:11:35 +0000 Subject: Properly set flag_pie and flag_pic We can't set flag_pie to the default when flag_pic == 0, which may be set by -fno-pic or -fno-PIC, since the default value of flag_pie is non-zero when GCC is configured with --enable-default-pie. We need to initialize flag_pic to -1 so that we can tell if -fpic, -fPIC, -fno-pic or -fno-PIC is used. Since Darwin defaults to PIC (__PIC__ == 2) and the PIC setting can't be changed, skip tests of default __PIC__ and __PIE__ setting for *-*-darwin* targets. gcc/ PR driver/70192 * opts.c (finish_options): Don't set flag_pie to the default if -fpic, -fPIC, -fno-pic or -fno-PIC is used. Set flag_pic to 0 if it is -1. gcc/testsuite/ PR driver/70192 * gcc.dg/pic-1.c: New test. * gcc.dg/pic-2.c: Likewise. * gcc.dg/pic-3.c: Likewise. * gcc.dg/pic-4.c: Likewise. * gcc.dg/pie-1.c: Likewise. * gcc.dg/pie-2.c: Likewise. * gcc.dg/pie-3.c: Likewise. * gcc.dg/pie-4.c: Likewise. * gcc.dg/pie-5.c: Likewise. * gcc.dg/pie-6.c: Likewise. From-SVN: r234295 --- gcc/common.opt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gcc/common.opt') diff --git a/gcc/common.opt b/gcc/common.opt index 1c8cc8e..67048db 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -1840,7 +1840,7 @@ Common Report Var(flag_peephole2) Optimization Enable an RTL peephole pass before sched2. fPIC -Common Report Var(flag_pic,2) Negative(fPIE) +Common Report Var(flag_pic,2) Negative(fPIE) Init(-1) Generate position-independent code if possible (large mode). fPIE @@ -1848,7 +1848,7 @@ Common Report Var(flag_pie,2) Negative(fpic) Init(-1) Generate position-independent code for executables if possible (large mode). fpic -Common Report Var(flag_pic,1) Negative(fpie) +Common Report Var(flag_pic,1) Negative(fpie) Init(-1) Generate position-independent code if possible (small mode). fpie -- cgit v1.1