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authorJoseph Myers <joseph@codesourcery.com>2019-02-26 02:09:18 +0000
committerJoseph Myers <joseph@codesourcery.com>2019-02-26 02:09:18 +0000
commite0cb7b6131ee5f2dca2938069b8b9590304e6f6b (patch)
treecd451044e2bbc120225db29347b134ff1f3bbe30 /sysdeps/s390/iso-8859-1_cp037_z900.c
parenta04549c19407a29a271779598a9518f9baf959e0 (diff)
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Add and move fall-through comments in system-specific code.
This patch fixes -Wimplicit-fallthrough warnings in system-specific
code that show up building glibc with -Wextra, by adding fall-through
comments, or moving existing such comments to the place required for
them to work (immediately before the case label being fallen through).

Tested with build-many-glibcs.py.

	* sysdeps/i386/dl-machine.h (elf_machine_rela): Add fall-through
	comments.
	* sysdeps/m68k/m680x0/fpu/s_cexp_template.c (s(__cexp)): Likewise.
	* sysdeps/m68k/memcopy.h (WORD_COPY_FWD): Likewise.
	(WORD_COPY_BWD): Likewise.
	* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/s390/iso-8859-1_cp037_z900.c (TR_LOOP): Likewise.
	* sysdeps/mips/dl-machine.h (elf_machine_reloc): Move fall-through
	comment.
	* sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise.
Diffstat (limited to 'sysdeps/s390/iso-8859-1_cp037_z900.c')
-rw-r--r--sysdeps/s390/iso-8859-1_cp037_z900.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/s390/iso-8859-1_cp037_z900.c b/sysdeps/s390/iso-8859-1_cp037_z900.c
index b2d8f62570..2a373fe124 100644
--- a/sysdeps/s390/iso-8859-1_cp037_z900.c
+++ b/sysdeps/s390/iso-8859-1_cp037_z900.c
@@ -227,12 +227,19 @@ __attribute__ ((aligned (8))) =
     switch (length)							\
       {									\
       case 7: outptr[6] = TABLE[inptr[6]];				\
+	/* Fall through.  */						\
       case 6: outptr[5] = TABLE[inptr[5]];				\
+	/* Fall through.  */						\
       case 5: outptr[4] = TABLE[inptr[4]];				\
+	/* Fall through.  */						\
       case 4: outptr[3] = TABLE[inptr[3]];				\
+	/* Fall through.  */						\
       case 3: outptr[2] = TABLE[inptr[2]];				\
+	/* Fall through.  */						\
       case 2: outptr[1] = TABLE[inptr[1]];				\
+	/* Fall through.  */						\
       case 1: outptr[0] = TABLE[inptr[0]];				\
+	/* Fall through.  */						\
       case 0: break;							\
       }									\
     inptr += length;							\