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This patch implements compiling agent expressions to native code for AArch64. This allows us to compile conditions set on fast tracepoints. The compiled function has the following prologue: High *------------------------------------------------------* | LR | | FP | <- FP | x1 (ULONGEST *value) | | x0 (unsigned char *regs) | Low *------------------------------------------------------* We save the function's argument on the stack as well as the return address and the frame pointer. We then set the current frame pointer to point to the previous one. The generated code for the expression will freely update the stack pointer so we use the frame pointer to refer to `*value' and `*regs'. `*value' needs to be accessed in the epilogue of the function, in order to set it to whatever is on top of the stack. `*regs' needs to be passed down to the `gdb_agent_get_raw_reg' function with the `reg' operation. gdb/gdbserver/ChangeLog: * linux-aarch64-low-.c: Include ax.h and tracepoint.h. (enum aarch64_opcodes) <RET>, <SUBS>, <AND>, <ORR>, <ORN>, <EOR>, <LSLV>, <LSRV>, <ASRV>, <SBFM>, <UBFM>, <CSINC>, <MUL>, <NOP>: New. (enum aarch64_condition_codes): New enum. (w0): New static global. (fp): Likewise. (lr): Likewise. (struct aarch64_memory_operand) <type>: New MEMORY_OPERAND_POSTINDEX type. (postindex_memory_operand): New helper function. (emit_ret): New function. (emit_load_store_pair): New function, factored out of emit_stp with support for MEMORY_OPERAND_POSTINDEX. (emit_stp): Rewrite using emit_load_store_pair. (emit_ldp): New function. (emit_load_store): Likewise. (emit_ldr): Mention post-index instruction in comment. (emit_ldrh): New function. (emit_ldrb): New function. (emit_ldrsw): Mention post-index instruction in comment. (emit_str): Likewise. (emit_subs): New function. (emit_cmp): Likewise. (emit_and): Likewise. (emit_orr): Likewise. (emit_orn): Likewise. (emit_eor): Likewise. (emit_mvn): Likewise. (emit_lslv): Likewise. (emit_lsrv): Likewise. (emit_asrv): Likewise. (emit_mul): Likewise. (emit_sbfm): Likewise. (emit_sbfx): Likewise. (emit_ubfm): Likewise. (emit_ubfx): Likewise. (emit_csinc): Likewise. (emit_cset): Likewise. (emit_nop): Likewise. (emit_ops_insns): New helper function. (emit_pop): Likewise. (emit_push): Likewise. (aarch64_emit_prologue): New function. (aarch64_emit_epilogue): Likewise. (aarch64_emit_add): Likewise. (aarch64_emit_sub): Likewise. (aarch64_emit_mul): Likewise. (aarch64_emit_lsh): Likewise. (aarch64_emit_rsh_signed): Likewise. (aarch64_emit_rsh_unsigned): Likewise. (aarch64_emit_ext): Likewise. (aarch64_emit_log_not): Likewise. (aarch64_emit_bit_and): Likewise. (aarch64_emit_bit_or): Likewise. (aarch64_emit_bit_xor): Likewise. (aarch64_emit_bit_not): Likewise. (aarch64_emit_equal): Likewise. (aarch64_emit_less_signed): Likewise. (aarch64_emit_less_unsigned): Likewise. (aarch64_emit_ref): Likewise. (aarch64_emit_if_goto): Likewise. (aarch64_emit_goto): Likewise. (aarch64_write_goto_address): Likewise. (aarch64_emit_const): Likewise. (aarch64_emit_call): Likewise. (aarch64_emit_reg): Likewise. (aarch64_emit_pop): Likewise. (aarch64_emit_stack_flush): Likewise. (aarch64_emit_zero_ext): Likewise. (aarch64_emit_swap): Likewise. (aarch64_emit_stack_adjust): Likewise. (aarch64_emit_int_call_1): Likewise. (aarch64_emit_void_call_2): Likewise. (aarch64_emit_eq_goto): Likewise. (aarch64_emit_ne_goto): Likewise. (aarch64_emit_lt_goto): Likewise. (aarch64_emit_le_goto): Likewise. (aarch64_emit_gt_goto): Likewise. (aarch64_emit_ge_got): Likewise. (aarch64_emit_ops_impl): New static global variable. (aarch64_emit_ops): New target function, return &aarch64_emit_ops_impl. (struct linux_target_ops): Install it. |
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bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.