binutils-gdb

History

Alan Modra bb6bf75e7a PowerPC @l , @h and @ha warnings, plus VLE e_li This patch started off just adding the warnings in tc-ppc.c about incorrect usage of @l, @h and @ha in instructions that don't have 16-bit D-form fields. That unfortunately showed up three warnings in ld/testsuite/ld-powerpc/vle-multiseg.s on instructions like e_li r3, IV_table@l+0x00 which was being assembled to 8: 70 60 00 00 e_li r3,0 a: R_PPC_ADDR16_LO IV_table The ADDR16_LO reloc is of course completely bogus on e_li, which has a split 20-bit signed integer field in bits 0x1f7fff, the low 11 bit in 0x7ff, the next 5 bits in 0x1f0000, and the high 4 bits in 0x7800. Applying an ADDR16_LO reloc to the instruction potentially changes the e_li instruction to e_add2i., e_add2is, e_cmp16i, e_mull2i, e_cmpl16i, e_cmph16i, e_cmphl16i, e_or2i, e_and2i., e_or2is, e_lis, e_and2is, or some invalid encodings. Now there is a relocation that suits e_li, R_PPC_VLE_ADDR20, which was added 2017-09-05 but I can't see code in gas to generate the relocation. In any case, VLE_ADDR20 probably doesn't have the correct semantics for @l since ideally you'd want an @l to pair with @h or @ha to generate a 32-bit constant. Thus @l should only produce a 16-bit value, I think. So we need some more relocations to handle e_li it seems, or as I do in this patch, modify the behaviour of existing relocations when applied to e_li instructions. include/ * opcode/ppc.h (E_OPCODE_MASK, E_LI_MASK, E_LI_INSN): Define. bfd/ * elf32-ppc.c (ppc_elf_howto_raw <R_PPC_VLE_ADDR20>): Correct mask and shift value. (ppc_elf_vle_split16): Use E_OPCODE_MASK. Handle e_li specially. gas/ * config/tc-ppc.c (md_assemble): Adjust relocs for VLE before TLS tweaks. Handle e_li. Warn on unexpected operand field for lo16/hi16/ha16 relocs.		8 years ago
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aout	various i386-aout and i386-coff target removal	8 years ago
cgen	Update year range in copyright notice of binutils files	9 years ago
coff	-Wstringop-truncation warnings	8 years ago
elf	Support AT_HWCAP2 on FreeBSD.	8 years ago
gdb	Update copyright year range in all GDB files	9 years ago
mach-o	Add support for new load commands added by Apple to the MACH-O file format.	8 years ago
opcode	PowerPC @l, @h and @ha warnings, plus VLE e_li	8 years ago
som	Update year range in copyright notice of binutils files	9 years ago
vms	Update year range in copyright notice of binutils files	9 years ago
COPYING	Update the address and phone number of the FSF organization	22 years ago
COPYING3	* COPYING3: New file. Contains version 3 of the GNU General Public License.	19 years ago
ChangeLog	PowerPC @l, @h and @ha warnings, plus VLE e_li	8 years ago
ChangeLog-0415	binutils ChangeLog rotation	11 years ago
ChangeLog-2016	ChangeLog rotation	10 years ago
ChangeLog-2017	ChangeLog rotation	9 years ago
ChangeLog-9103	Add copyright notices	14 years ago
MAINTAINERS	Update year range in copyright notice of binutils files	9 years ago
alloca-conf.h	Update year range in copyright notice of binutils files	9 years ago
ansidecl.h	-Wstringop-truncation warnings	8 years ago
bfdlink.h	Separate header PT_LOAD for -z separate-code	8 years ago
binary-io.h	Update year range in copyright notice of binutils files	9 years ago
bout.h	Update year range in copyright notice of binutils files	9 years ago
demangle.h	Update year range in copyright notice of binutils files	9 years ago
diagnostics.h	Disable -Wformat-nonliteral in parts of printcmd.c	8 years ago
dis-asm.h	opcodes/riscv: Hide '.L0 ' fake symbols	8 years ago
dwarf2.def	include: Sync with GCC	8 years ago
dwarf2.h	Update year range in copyright notice of binutils files	9 years ago
dyn-string.h	Update year range in copyright notice of binutils files	9 years ago
environ.h	Update year range in copyright notice of binutils files	9 years ago
fibheap.h	Update year range in copyright notice of binutils files	9 years ago
filenames.h	Update year range in copyright notice of binutils files	9 years ago
floatformat.h	Update year range in copyright notice of binutils files	9 years ago
fnmatch.h	Update year range in copyright notice of binutils files	9 years ago
fopen-bin.h	Update year range in copyright notice of binutils files	9 years ago
fopen-same.h	Update year range in copyright notice of binutils files	9 years ago
fopen-vms.h	Update year range in copyright notice of binutils files	9 years ago
gcc-c-fe.def	Update year range in copyright notice of binutils files	9 years ago
gcc-c-interface.h	Update year range in copyright notice of binutils files	9 years ago
gcc-cp-fe.def	Update year range in copyright notice of binutils files	9 years ago
gcc-cp-interface.h	Update year range in copyright notice of binutils files	9 years ago
gcc-interface.h	Update year range in copyright notice of binutils files	9 years ago
getopt.h	Update year range in copyright notice of binutils files	9 years ago
hashtab.h	Update year range in copyright notice of binutils files	9 years ago
hp-symtab.h	Update year range in copyright notice of binutils files	9 years ago
leb128.h	Update year range in copyright notice of binutils files	9 years ago
libiberty.h	Copy from GCC: Add linker_output as prefix for LTO temps (PR lto/86548).	8 years ago
longlong.h	include: Sync with GCC	8 years ago
lto-symtab.h	Update year range in copyright notice of binutils files	9 years ago
md5.h	Update year range in copyright notice of binutils files	9 years ago
oasys.h	Update year range in copyright notice of binutils files	9 years ago
objalloc.h	Update year range in copyright notice of binutils files	9 years ago
obstack.h	Update year range in copyright notice of binutils files	9 years ago
os9k.h	Update year range in copyright notice of binutils files	9 years ago
partition.h	Update year range in copyright notice of binutils files	9 years ago
plugin-api.h	New plugin interface to get list of symbols wrapped with --wrap option.	9 years ago
progress.h	Update year range in copyright notice of binutils files	9 years ago
safe-ctype.h	Update year range in copyright notice of binutils files	9 years ago
sha1.h	Update year range in copyright notice of binutils files	9 years ago
simple-object.h	libiberty: Sync with GCC	8 years ago
sort.h	Update year range in copyright notice of binutils files	9 years ago
splay-tree.h	include: 2018-05-28 Bernd Edlinger <bernd.edlinger@hotmail.de>	8 years ago
symcat.h	Update year range in copyright notice of binutils files	9 years ago
timeval-utils.h	Update year range in copyright notice of binutils files	9 years ago
vtv-change-permission.h	Update year range in copyright notice of binutils files	9 years ago
xregex.h	merge from gcc	15 years ago
xregex2.h	Update year range in copyright notice of binutils files	9 years ago
xtensa-config.h	Update year range in copyright notice of binutils files	9 years ago
xtensa-isa-internal.h	Update year range in copyright notice of binutils files	9 years ago
xtensa-isa.h	Update year range in copyright notice of binutils files	9 years ago