Nelson Chu 00d4d1b0a3 RISC-V: Support to add implicit extensions for G. ... G is a special case, consider the ISA spec github issue as follows, https://github.com/riscv/riscv-isa-manual/issues/575 My understand is that - i, m, a, f and d extensions are not g's implicit extensions, they are g's expansions. The zifencei is the implicit extension of g, and so is zicsr, since it is implicited by f (or i2p1). However, we add the g with the RISCV_UNKNOWN_VERSION to the subset list, and it will not output to the arch string, it is only used to check what implicit extensions are need to be added. bfd/ * elfxx-riscv.c (riscv_parse_add_subset): Allow to add g with RISCV_UNKNOWN_VERSION versions. (riscv_parse_std_ext): Add g to the subset list, we only use it to add the implicit extensions, but won't output it to arch string. (riscv_parse_add_implicit_subsets): Add implicit zicsr and zifencei for g extension. (riscv_arch_str1): Do not output g to the arch string. * elfxx-riscv.h (RISCV_UNKNOWN_VERSION): Moved to include/opcode/riscv.h. gas/ * testsuite/gas/riscv/attribute-10.d: Updated. * testsuite/gas/riscv/march-imply-g.d: New testcase for g. * testsuite/gas/riscv/march-imply-unsupported.d: The zicsr and zifencei are not supported in the ISA spec v2.2, so don't add and output them. include/ * opcode/riscv.h (RISCV_UNKNOWN_VERSION): added.		2020-12-01 15:23:02 +08:00
..
aout	Fixes for the magic number used in PDP11 AOUT binaries.	2020-04-14 14:41:27 +01:00
cgen
coff	Remove powerpc PE support	2020-07-09 22:58:16 +09:30
elf	Support SHF_GNU_RETAIN ELF section flag	2020-11-18 11:51:13 +00:00
gdb
mach-o	Recognize some new Mach-O load commands	2020-06-22 14:29:20 +01:00
opcode	RISC-V: Support to add implicit extensions for G.	2020-12-01 15:23:02 +08:00
som	PR26457 UBSAN: som.c:1794 left shift cannot be represented	2020-08-31 20:28:09 +09:30
vms
alloca-conf.h
ansidecl.h
bfdlink.h	bfd, include, ld, binutils, libctf: CTF should use the dynstr/sym	2020-11-20 13:34:07 +00:00
binary-io.h
bout.h
ChangeLog	RISC-V: Support to add implicit extensions for G.	2020-12-01 15:23:02 +08:00
ChangeLog-0415
ChangeLog-2016
ChangeLog-2017
ChangeLog-2018
ChangeLog-2019
ChangeLog-9103
COPYING
COPYING3
ctf-api.h	libctf, include: support foreign-endianness symtabs with CTF	2020-11-25 19:11:35 +00:00
ctf.h	libctf, include: CTF-archive-wide symbol lookup	2020-11-20 13:34:11 +00:00
demangle.h
diagnostics.h	ada-lex.l: Ignore register diagnostic also for g++ defaulting to ISO C++17	2020-08-23 12:14:34 +02:00
dis-asm.h
dwarf2.def	Sync libiberty and include with GCC for get_DW_UT_name.	2020-09-24 22:55:24 +02:00
dwarf2.h	Sync libiberty and include with GCC for get_DW_UT_name.	2020-09-24 22:55:24 +02:00
dyn-string.h
environ.h
fibheap.h
filenames.h	Sync config, include and libiberty with GCC	2020-06-24 16:52:48 -07:00
floatformat.h	Sync include, libiberty with GCC.	2020-09-11 11:32:00 -07:00
fnmatch.h
fopen-bin.h
fopen-same.h
fopen-vms.h
gcc-c-fe.def
gcc-c-interface.h
gcc-cp-fe.def
gcc-cp-interface.h
gcc-interface.h
getopt.h
hashtab.h
hp-symtab.h
leb128.h
libiberty.h	Remove the use of the register keyword in the libiberty.h header file - it is deprecated and incompatible with C++17.	2020-06-25 11:16:42 +01:00
longlong.h
lto-symtab.h	include: Sync lto-symtab.h and plugin-api.h with GCC	2020-03-21 03:39:18 -07:00
MAINTAINERS
md5.h
oasys.h
objalloc.h
obstack.h
os9k.h
partition.h
plugin-api.h	include: Sync plugin-api.h with GCC	2020-04-01 02:36:11 -07:00
progress.h
safe-ctype.h
sha1.h
simple-object.h
sort.h
splay-tree.h
symcat.h
timeval-utils.h
vtv-change-permission.h
xregex2.h
xregex.h
xtensa-config.h
xtensa-isa-internal.h
xtensa-isa.h