binutils-gdb/ld/testsuite/ld-ctf/slice.d
Nick Alcock 69a284867c libctf: support encodings for enums
The previous commit started to error-check the lookup of
ctf_type_encoding for the underlying type that is internally done when
carrying out a ctf_type_encoding on a slice.

Unfortunately, enums have no encoding, so this has historically been
returning an error (which is ignored) and then populating the cte_format
with uninitialized data.  Now the error is not ignored, this is
returning an error, which breaks linking of CTF containing bitfields of
enumerated type.

CTF format v3 does not record the actual underlying type of a enum, but
we can mock up something that is not *too* wrong, and that is at any
rate better than uninitialized data.

ld/ChangeLog
2021-03-18  Nick Alcock  <nick.alcock@oracle.com>

	* testsuite/ld-ctf/slice.c: Check slices of enums too.
	* testsuite/ld-ctf/slice.d: Results adjusted.

libctf/ChangeLog
2021-03-18  Nick Alcock  <nick.alcock@oracle.com>

	* ctf-types.c (ctf_type_encoding): Support, after a fashion, for enums.
	* ctf-dump.c (ctf_dump_format_type): Do not report enums' degenerate
	encoding.
2021-03-18 12:40:41 +00:00

33 lines
1.2 KiB
Makefile

#as:
#source: slice.c
#objdump: --ctf=.ctf
#ld: -shared --ctf-variables
#name: Slice
.*: +file format .*
Contents of CTF section .ctf:
Header:
Magic number: 0xdff2
Version: 4 \(CTF_VERSION_3\)
#...
Compilation unit name: .*slice.c
#...
Data object section: .* \(0x4 bytes\)
Type section: .* \(0xd0 bytes\)
String section: .*
#...
Data objects:
slices -> 0x[0-9a-f]*: \(kind 6\) struct slices \(size 0x[0-9a-f]*\) \(aligned at 0x1*\)
#...
Types:
#...
0x[0-9a-f]*: \(kind 6\) struct slices \(size 0x[0-9a-f]*\) \(aligned at 0x[0-9a-f]*\)
*\[0x0\] one: ID 0x[0-9a-f]*: \(kind 1\) int:1 \[slice 0x0:0x1\] \(format 0x1\) \(size 0x1\) \(aligned at 0x1\)
*\[0x1\] two: ID 0x[0-9a-f]*: \(kind 1\) int:2 \[slice 0x1:0x2\] \(format 0x1\) \(size 0x1\) \(aligned at 0x1\)
*\[0x3\] six: ID 0x[0-9a-f]*: \(kind 1\) int:6 \[slice 0x3:0x6\] \(format 0x1\) \(size 0x1\) \(aligned at 0x1\)
*\[0x9\] ten: ID 0x[0-9a-f]*: \(kind 1\) int:10 \[slice 0x9:0xa\] \(format 0x1\) \(size 0x2\) \(aligned at 0x2\)
*\[0x13\] bar: ID 0x[0-9a-f]*: \(kind 8\) enum foo:1 \[slice 0x13:0x1\] \(format 0x1\) \(size 0x1\) \(aligned at 0x1\)
#...