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i386, x86_64, ppc: fix switch fallthrough cases with GCC7

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In util/getroot and efidisk slightly modify exitsing comment to mostly
retain it but still make GCC7 compliant with respect to fall through
annotation.

In grub-core/lib/xzembed/xz_dec_lzma2.c it adds same comments as
upstream.

In grub-core/tests/setjmp_tets.c declare functions as "noreturn" to
suppress GCC7 warning.

In grub-core/gnulib/regexec.c use new __attribute__, because existing
annotation is not recognized by GCC7 parser (which requires that comment
immediately precedes case statement).

Otherwise add FALLTHROUGH comment.

Closes: 50598
This commit is contained in:
Andrei Borzenkov 2017-04-04 19:23:55 +03:00
parent 6cef7f6079
commit 4bd4a88725
17 changed files with 32 additions and 3 deletions
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5
grub-core/tests/setjmp_test.c
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@ -25,7 +25,10 @@ GRUB_MOD_LICENSE ("GPLv3+");
static grub_jmp_buf jmp_point;
static int expected, ctr;
#pragma GCC diagnostic ignored "-Wmissing-noreturn"
/* This fixes GCC7 "unintentional fallthrough" warning */
static void jmp0 (void) __attribute__ ((noreturn));
static void jmp1 (void) __attribute__ ((noreturn));
static void jmp2 (void) __attribute__ ((noreturn));
static void
jmp0 (void)