This final patch adds the new "compile" command and subcommands, and
all the machinery needed to make it work.
A shared library supplied by gcc is used for all communications with
gcc. Types and most aspects of symbols are provided directly by gdb
to the compiler using this library.
gdb provides some information about the user's code using plain text.
Macros are emitted this way, and DWARF location expressions (and
bounds for VLA) are compiled to C code.
This hybrid approach was taken because, on the one hand, it is better
to provide global declarations and such on demand; but on the other
hand, for local variables, translating DWARF location expressions to C
was much simpler than exporting a full compiler API to gdb -- the same
result, only easier to implement, understand, and debug.
In the ordinary mode, the user's expression is wrapped in a dummy
function. After compilation, gdb inserts the resulting object code
into the inferior, then calls this function.
Access to local variables is provided by noting which registers are
used by location expressions, and passing a structure of register
values into the function. Writes to registers are supported by
copying out these values after the function returns.
This approach was taken so that we could eventually implement other
more interesting features based on this same infrastructure; for
example, we're planning to investigate inferior-side breakpoint
conditions.
gdb/ChangeLog
2014-12-12 Phil Muldoon <pmuldoon@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Update.
* symtab.h (struct symbol_computed_ops) <generate_c_location>: New
field.
* p-lang.c (pascal_language_defn): Update.
* opencl-lang.c (opencl_language_defn): Update.
* objc-lang.c (objc_language_defn): Update.
* m2-lang.c (m2_language_defn): Update.
* language.h (struct language_defn) <la_get_compile_instance,
la_compute_program>: New fields.
* language.c (unknown_language_defn, auto_language_defn)
(local_language_defn): Update.
* jv-lang.c (java_language_defn): Update.
* go-lang.c (go_language_defn): Update.
* f-lang.c (f_language_defn): Update.
* dwarf2loc.h (dwarf2_compile_property_to_c): Declare.
* dwarf2loc.c (dwarf2_compile_property_to_c)
(locexpr_generate_c_location, loclist_generate_c_location): New
functions.
(dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update.
* defs.h (enum compile_i_scope_types): New.
(enum command_control_type) <compile_control>: New constant.
(struct command_line) <control_u>: New field.
* d-lang.c (d_language_defn): Update.
* compile/compile.c: New file.
* compile/compile-c-support.c: New file.
* compile/compile-c-symbols.c: New file.
* compile/compile-c-types.c: New file.
* compile/compile.h: New file.
* compile/compile-internal.h: New file.
* compile/compile-loc2c.c: New file.
* compile/compile-object-load.c: New file.
* compile/compile-object-load.h: New file.
* compile/compile-object-run.c: New file.
* compile/compile-object-run.h: New file.
* cli/cli-script.c (multi_line_command_p, print_command_lines)
(execute_control_command, process_next_line)
(recurse_read_control_structure): Handle compile_control.
* c-lang.h (c_get_compile_context, c_compute_program): Declare.
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Update.
* ada-lang.c (ada_language_defn): Update.
* Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS):
New variables.
(SFILES): Add SUBDIR_GCC_COMPILE_SRCS.
(HFILES_NO_SRCDIR): Add compile.h.
(COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS.
(INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS.
(compile.o, compile-c-types.o, compile-c-symbols.o)
(compile-object-load.o, compile-object-run.o, compile-loc2c.o)
(compile-c-support.o): New targets.
gdb/doc/ChangeLog
2014-12-12 Phil Muldoon <pmuldoon@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.texinfo (Altering): Update.
(Compiling and Injecting Code): New node.
gdb/testsuite/ChangeLog
2014-12-12 Phil Muldoon <pmuldoon@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
Tom Tromey <tromey@redhat.com>
* configure.ac: Add gdb.compile/.
* configure: Regenerate.
* gdb.compile/Makefile.in: New file.
* gdb.compile/compile-ops.exp: New file.
* gdb.compile/compile-ops.c: New file.
* gdb.compile/compile-tls.c: New file.
* gdb.compile/compile-tls.exp: New file.
* gdb.compile/compile-constvar.S: New file.
* gdb.compile/compile-constvar.c: New file.
* gdb.compile/compile-mod.c: New file.
* gdb.compile/compile-nodebug.c: New file.
* gdb.compile/compile-setjmp-mod.c: New file.
* gdb.compile/compile-setjmp.c: New file.
* gdb.compile/compile-setjmp.exp: New file.
* gdb.compile/compile-shlib.c: New file.
* gdb.compile/compile.c: New file.
* gdb.compile/compile.exp: New file.
* lib/gdb.exp (skip_compile_feature_tests): New proc.
This patch is to revert my previous commit, because we shouldn't remove
gdbtk bits from gdb/testsuite/configure.ac while keep gdbtk bits in
gdb/configure.ac.
gdb/testsuite:
2014-12-05 Yao Qi <yao@codesourcery.com>
Revert:
* configure.ac: Remove AC_ARG_ENABLE for gdbtk. Don't invoke
AC_CONFIG_SUBDIRS(gdb.gdbtk).
* configure: Re-generated.
When I skim configure.ac and Makefile.in in gdb/testsuite, I happen to
see that directory gdb.gdbtk is added to subdirs, however it doesn't
exist. gdb/testsuite/gdb.gdbtk was removed by the patch below,
[rfa] git repo fixup: delete gdb/testsuite/gdb.gdbtk
http://thread.gmane.org/gmane.comp.gdb.patches/61489
and we should cleanup configure.ac accordingly.
gdb/testsuite:
2014-12-01 Yao Qi <yao@codesourcery.com>
* configure.ac: Remove AC_ARG_ENABLE for gdbtk. Don't invoke
AC_CONFIG_SUBDIRS(gdb.gdbtk).
* configure: Re-generated.
This integrates Jan Kratochvil's nice race reproducer from PR
testsuite/12649 into the testsuite infrustructure directly.
With this, one only has to do either 'make check-read1' or 'make check
READ1="1"' to preload the read1.so library into expect.
Currently only enabled for glibc/GNU systems, and if
build==host==target.
gdb/testsuite/ChangeLog:
* Makefile.in (EXTRA_RULES, CC): New variables, get from
configure.
(EXPECT): Handle READ1 being set.
(all): Depend on EXTRA_RULES.
(check-read1, expect-read1, read1.so, read1): New rules.
* README (Testsuite Parameters): Document the READ1 make variable.
(Race detection): New section.
* configure: Regenerate.
* configure.ac: If build==host==target, and running under a
GNU/glibc system, add read1 to the extra Makefile rules.
(EXTRA_RULES): AC_SUBST it.
* lib/read1.c: New file.
gdb/ChangeLog:
* Makefile.in (check-read1): New rule.
Tests in gdb.gdb fail because directory gdb/testsuite/gdb.gdb doesn't
exist in build tree. This patch appends gdb.gdb/Makefile in AC_OUTPUT,
and adds new Makefile.in in gdb.gdb, so that directory gdb.gdb can be
created during configure.
With this patch applied, tests under gdb.gdb can be run,
$ make check RUNTESTFLAGS='--directory=gdb.gdb'
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using ../../../../git/gdb/testsuite/config/unix.exp as tool-and-target-specific interface file.
Running ../../../../git/gdb/testsuite/gdb.gdb/complaints.exp ...
Running ../../../../git/gdb/testsuite/gdb.gdb/observer.exp ...
Running ../../../../git/gdb/testsuite/gdb.gdb/python-interrupts.exp ...
FAIL: gdb.gdb/python-interrupts.exp: signal SIGINT
Running ../../../../git/gdb/testsuite/gdb.gdb/python-selftest.exp ...
FAIL: gdb.gdb/python-selftest.exp: call catch_command_errors(execute_command, "python print 5", 0, RETURN_MASK_ALL)
Running ../../../../git/gdb/testsuite/gdb.gdb/selftest.exp ...
Running ../../../../git/gdb/testsuite/gdb.gdb/xfullpath.exp ...
=== gdb Summary ===
gdb/testsuite:
2014-02-10 Yao Qi <yao@codesourcery.com>
PR testsuite/16543
* configure.ac: Append gdb.gdb/Makefile in AC_OUTPUT.
* configure: Regenerated.
* Makefile.in: New file.
We add a new dir gdb.perf in testsuite for all performance tests.
However, current 'make check' logic will either run dejagnu in
directory testsuite or iterate all gdb.* directories which has *.exp
files. Both of them will run tests in gdb.perf. We want to achieve:
1) typical 'make check' should not run performance tests. In each perf
test case, GDB_PERFTEST_MODE is checked. If it doesn't exist, return.
2) run perf tests easily. We add a new makefile target 'check-perf'.
gdb:
2013-11-06 Yao Qi <yao@codesourcery.com>
* Makefile.in (check-perf): New target.
gdb/testsuite:
2013-11-06 Yao Qi <yao@codesourcery.com>
* Makefile.in (check-perf): New target.
* configure.ac (AC_OUTPUT): Output Makefile in gdb.perf.
* configure: Re-generated.
* gdb.perf/Makefile.in: New.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* configure: Regenerate.
* lib/cell.exp: New file.
* gdb.cell: New directory.
* gdb.cell/configure.ac: New file.
* gdb.cell/configure: New file.
* gdb.cell/Makefile.in: New file.
* gdb.cell/arch.exp: New file.
* gdb.cell/break.c: New file.
* gdb.cell/break.exp: New file.
* gdb.cell/break-spu.c: New file.
* gdb.cell/bt.c: New file.
* gdb.cell/bt2-spu.c: New file.
* gdb.cell/bt-spu.c: New file.
* gdb.cell/bt.exp: New file.
* gdb.cell/coremaker.c: New file.
* gdb.cell/coremaker-spu.c: New file.
* gdb.cell/core.exp: New file.
* gdb.cell/gcore.exp: New file.
* gdb.cell/data.c: New file.
* gdb.cell/data.exp: New file.
* gdb.cell/data-spu.c: New file.
* gdb.cell/ea-cache.exp: New file.
* gdb.cell/ea-cache.c: New file.
* gdb.cell/ea-cache-spu.c: New file.
* gdb.cell/ea-standalone.c: New file.
* gdb.cell/ea-standalone.exp: New file.
* gdb.cell/ea-test.c: New file.
* gdb.cell/ea-test.exp: New file.
* gdb.cell/f-regs.exp: New file.
* gdb.cell/mem-access.c: New file.
* gdb.cell/mem-access.exp: New file.
* gdb.cell/mem-access-spu.c: New file.
* gdb.cell/ptype.exp: New file.
* gdb.cell/registers.exp: New file.
* gdb.cell/size.c: New file.
* gdb.cell/sizeof.exp: New file.
* gdb.cell/size-spu.c: New file.
* gdb.cell/solib.exp: New file.
* gdb.cell/solib-symbol.exp: New file.
* README: Mention parallel check.
gdb/testsuite
* dg-extract-results.sh: New file.
* Makefile.in (FORCE_PARALLEL): New variable.
(CHECK_TARGET): New conditional variable.
(check): Use CHECK_TARGET.
(DO_RUNTEST): New variable.
(check-single): New target.
(TEST_DIRS): New variable.
(TEST_TARGETS): Likewise.
(check-parallel): New target.
(check-gdb.%): New pattern.
(BASE1_FILES): New variable.
(BASE2_FILES): Likewise.
(check-gdb.base%): New pattern.
(%/.dir): New pattern.
* configure: Rebuild.
* aclocal.m4 (AM_CONDITIONAL): New defun.
* configure.ac: Check whether user is using GNU make.
(GMAKE): New conditional.
* gdb.reverse: New directory.
* gdb.reverse/break-reverse.c: New test.
* gdb.reverse/break-reverse.exp: New test.
* gdb.reverse/consecutive-reverse.c: New test.
* gdb.reverse/consecutive-reverse.exp: New test.
* gdb.reverse/finish-reverse.c: New test.
* gdb.reverse/finish-reverse.exp: New test.
* gdb.reverse/machinestate.c: New test.
* gdb.reverse/ms1.c: New test.
* gdb.reverse/machinestate.exp: New test.
* gdb.reverse/Makefile.in: New file.
* gdb.reverse/shr2.c: New test.
* gdb.reverse/solib-reverse.c: New test.
* gdb.reverse/solib-reverse.exp: New test.
* gdb.reverse/step-reverse.c: New test.
* gdb.reverse/step-reverse.exp: New test.
* gdb.reverse/until-reverse.c: New test.
* gdb.reverse/ur1.c: New test.
* gdb.reverse/until-reverse.exp: New test.
* gdb.reverse/watch-reverse.c: New test.
* gdb.reverse/watch-reverse.exp: New test.
* configure.ac (AC_OUTPUT): Add gdb.reverse/Makefile.
* configure: Regenerate.
* configure.ac: Removed trailing spaces after backslash.
* gdb.modula2: New directory.
* gdb.modula2/Makefile.in: New file.
* gdb.modula2/unbounded-array.exp: New file.
* gdb.modula2/unbounded1.c: New file.
* gdb.ada/gnat_ada.gin: Delete, no longer used.
* lib/ada.exp (gdb_compile_ada): Minor adaptation to new project file.
* configure.ac: No longer generate gnat_ada.gpr.
* configure: Regenerate.
* gdb.ada/Makefile.in: Minor adaptations due to new project file.
* gdb.ada/null_record/null_record.adb: Moved here from gdb.ada.
* gdb.ada/null_record/bar.ads: Likewise.
* gdb.ada/null_record/bar.adb: Likewise.
* gdb.ada/fixed_points/fixed_points.adb: Likewise.
* gdb.ada/null_record.exp (testdir): New variable.
(testfile): executable is now in testdir subdirectory.
(srcfile): Use full path to the main compilation unit.
* gdb.ada/fixed_points.exp: Same changes as above.
