Due to my ongoing work to make it possible for gdbserver to start the
inferior using the shell, I had to share the fork_inferior function
under the "nat/" directory. In order to do that, I created a new file
and put the function there; however, this meant that I now had to
update some of the *.mh files (under "gdb/config") and add the new
file as a dependency to be built natively. Bleh...
After talking a bit to Pedro about this, the idea came up to write a
new "gdb/configure.nat" file, a la "gdb/configure.tgt", which would
concentrate all of the native settings for each host/system. I
decided to tackle this issue.
The patch is simple. All of the previous Makefile variables that were
being declared inside the *.mh files are now inside "gdb/Makefile.in",
and "gdb/configure" is responsible for AC_SUBST'ing them. The
definitions of these variables were put inside "gdb/configure.nat", so
now they're shell variables. For excerpts of Makefile code, one must
create a file under "gdb/config/${gdb_cpu_host}" and reference it on
the "nat_extra_makefile_frag" variable.
It should now be easier to update the native dependencies of hosts in
this single file.
This has been tested on x86_64 without regressions.
gdb/ChangeLog:
2017-05-06 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in: Remove "@host_makefile_frag@". Add variables
NAT_FILE, NATDEPFILES, NAT_CDEPS, LOADLIBES, MH_CFLAGS, XM_CLIBS,
NAT_GENERATED_FILES, HAVE_NATIVE_GCORE_HOST. Add
"@nat_extra_makefile_frag@".
(Makefile): Remove dependency on "@frags@".
($(GNULIB_BUILDDIR)/Makefile): Likewise.
(data-directory/Makefile): Likewise.
* config/aarch64/linux.mh: Deleted; moved contents to
"gdb/configure.nat".
* config/alpha/alpha-linux.mh: Likewise.
* config/alpha/nbsd.mh: Likewise.
* config/arm/linux.mh: Likewise.
* config/arm/nbsdelf.mh: Likewise.
* config/i386/cygwin.mh: Likewise.
* config/i386/cygwin64.mh: Likewise.
* config/i386/darwin.mh: Likewise.
* config/i386/fbsd.mh: Likewise.
* config/i386/fbsd64.mh: Likewise.
* config/i386/go32.mh: Likewise.
* config/i386/i386gnu.mh: Likewise.
* config/i386/i386sol2.mh: Likewise.
* config/i386/linux.mh: Likewise.
* config/i386/linux64.mh: Likewise.
* config/i386/mingw.mh: Likewise.
* config/i386/mingw64.mh: Likewise.
* config/i386/nbsd64.mh: Likewise.
* config/i386/nbsdelf.mh: Likewise.
* config/i386/nto.mh: Likewise.
* config/i386/obsd.mh: Likewise.
* config/i386/obsd64.mh: Likewise.
* config/i386/sol2-64.mh: Likewise.
* config/ia64/linux.mh: Likewise.
* config/m32r/linux.mh: Likewise.
* config/m68k/linux.mh: Likewise.
* config/m68k/nbsdelf.mh: Likewise.
* config/m68k/obsd.mh: Likewise.
* config/m88k/obsd.mh: Likewise.
* config/mips/fbsd.mh: Likewise.
* config/mips/linux.mh: Likewise.
* config/mips/nbsd.mh: Likewise.
* config/mips/obsd64.mh: Likewise.
* config/pa/linux.mh: Likewise.
* config/pa/nbsd.mh: Likewise.
* config/pa/obsd.mh: Likewise.
* config/powerpc/aix.mh: Likewise.
* config/powerpc/fbsd.mh: Likewise.
* config/powerpc/linux.mh: Likewise.
* config/powerpc/nbsd.mh: Likewise.
* config/powerpc/obsd.mh: Likewise.
* config/powerpc/ppc64-linux.mh: Likewise.
* config/powerpc/spu-linux.mh: Likewise.
* config/s390/linux.mh: Likewise.
* config/sh/nbsd.mh: Likewise.
* config/sparc/fbsd.mh: Likewise.
* config/sparc/linux.mh: Likewise.
* config/sparc/linux64.mh: Likewise.
* config/sparc/nbsd64.mh: Likewise.
* config/sparc/nbsdelf.mh: Likewise.
* config/sparc/obsd64.mh: Likewise.
* config/sparc/sol2.mh: Likewise.
* config/tilegx/linux.mh: Likewise.
* config/vax/nbsdelf.mh: Likewise.
* config/vax/obsd.mh: Likewise.
* config/xtensa/linux.mh: Likewise.
* config/i386/i386gnu.mn: New file, with excerpts from
"config/i386/i386gnu.mh".
* configure: Regenerate.
* configure.ac: Rewrite code to use "gdb/configure.nat" instead of
*.mh files under "gdb/config".
* configure.nat: New file, with contents from the
"gdb/config/*/*.mh" files.
gdb/doc/ChangeLog:
2017-05-06 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile: Remove "@host_makefile_frag@".
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
..., so handle these in "C" mode still:
gdb/
* config/i386/i386gnu.mh (%_S.o %_U.o): Add "-x c" to
"COMPILE.post".
* gnu-nat.c: #include Mach/Hurd headers before all others. Wrap
Mach/Hurd headers and MIG stubs' prototypes in 'extern "C"'.
* i386-gnu-nat.c: Likewise.
Move the debug register support code from amd64bsd-nat.c and
i386bsd-nat.c into a shared x86bsd-nat.c.
Instead of setting up x86_dr_low in amd64fbsd-nat.c and
i386fbsd-nat.c, add a x86bsd_target function that creates a new target
that inherits from inf_ptrace and sets up x86 debug registers if
supported. In addition to initializing x86_dr_low, the x86bsd target
installs a custom mourn_inferior target operation to clean up the
x86 debug register state. Previously this was only done on amd64.
Now it will be done for both i386 and amd64. The i386bsd_target and
amd64bsd_target functions create targets that inherit from x86bsd
rather than inf_ptrace.
gdb/ChangeLog:
* Makefile.in [HFILES_NO_SRCDIR]: Replace 'amd64bsd-nat.h' with
'x86bsd-nat.h'.
* amd64bsd-nat.c: Include 'x86bsd-nat.h' instead of
'amd64bsd-nat.h'.
(amd64bsd_xsave_len): Rename and move to x86bsd-nat.c.
(amd64bsd_fetch_inferior_registers): Replace 'amd64bsd_xsave_len'
with 'x86bsd_xsave_len'.
(amd64bsd_store_inferior_registers): Likewise.
(amd64bsd_target): Inherit from x86bsd_target.
(amd64bsd_dr_get): Rename and move to x86bsd-nat.c.
(amd64bsd_dr_set): Likewise.
(amd64bsd_dr_set_control): Likewise.
(amd64bsd_dr_set_addr): Likewise.
(amd64bsd_dr_get_addr): Likewise.
(amd64bsd_dr_get_status): Likewise.
(amd64bsd_dr_get_control): Likewise.
* amd64fbsd-nat.c: Include 'x86bsd-nat.h' instead of
'amd64bsd-nat.h'.
(super_mourn_inferior): Move to x86bsd-nat.c.
(amd64fbsd_mourn_inferior): Rename and move to x86bsd-nat.c.
(amd64fbsd_read_description): Replace 'amd64bsd_xsave_len' with
'x86bsd_xsave_len'.
(_initialize_amd64fbsd_nat): Remove x86 watchpoint setup and
mourn_inferior' target op.
* config/i386/fbsd.mh (NATDEPFILES): Add x86bsd-nat.o.
* config/i386/fbsd64.mh: Likewise.
* config/i386/nbsd64.mh: Likewise.
* config/i386/nbsdelf.mh: Likewise.
* config/i386/obsd.mh: Likewise.
* config/i386/obsd64.mh: Likewise.
* i386bsd-nat.c: Include 'x86bsd-nat.h'.
(i386bsd_xsave_len): Rename and move to x86bsd-nat.c.
(i386bsd_fetch_inferior_registers): Replace 'i386bsd_xsave_len'
with 'x86bsd_xsave_len'.
(i386bsd_store_inferior_registers): Likewise.
(i386bsd_target): Inherit from x86bsd_target.
(i386bsd_dr_get): Rename and move to x86bsd-nat.c.
(i386bsd_dr_set): Likewise.
(i386bsd_dr_set_control): Likewise.
(i386bsd_dr_set_addr): Likewise.
(i386bsd_dr_get_addr): Likewise.
(i386bsd_dr_get_status): Likewise.
(i386bsd_dr_get_control): Likewise.
* i386bsd-nat.h (i386bsd_xsave_len): Remove.
(i386bsd_dr_set_control): Remove.
(i386bsd_dr_set_addr): Remove.
(i386bsd_dr_get_addr): Remove.
(i386bsd_dr_get_status): Remove.
(i386bsd_dr_get_control): Remove.
* i386fbsd-nat.c: Include 'x86bsd-nat.h'.
(i386fbsd_read_description): Replace 'i386bsd_xsave_len' with
'x86bsd_xsave_len'.
(_initialize_i386fbsd_nat): Remove x86 watchpoint setup and
mourn_inferior' target op.
* x86bsd-nat.c: New file.
* x86bsd-nat.h: New file.
This commit moves the code to handle lwp_info.arch_private for
Linux x86 into a new shared file, nat/x86-linux.c.
gdb/ChangeLog:
* nat/x86-linux.h: New file.
* nat/x86-linux.c: Likewise.
* Makefile.in (HFILES_NO_SRCDIR): Add nat/x86-linux.h.
(x86-linux.o): New rule.
* config/i386/linux.mh (NATDEPFILES): Add x86-linux.o.
* config/i386/linux64.mh (NATDEPFILES): Likewise.
* nat/linux-nat.h (struct arch_lwp_info): New forward declaration.
(lwp_set_arch_private_info): New declaration.
(lwp_arch_private_info): Likewise.
* linux-nat.c (lwp_set_arch_private_info): New function.
(lwp_arch_private_info): Likewise.
* x86-linux-nat.c: Include nat/x86-linux.h.
(arch_lwp_info): Removed structure.
(update_debug_registers_callback):
Use lwp_set_debug_registers_changed.
(x86_linux_prepare_to_resume): Use lwp_debug_registers_changed
and lwp_set_debug_registers_changed.
(x86_linux_new_thread): Use lwp_set_debug_registers_changed.
gdb/gdbserver/ChangeLog:
* Makefile.in (x86-linux.o): New rule.
* configure.srv: Add x86-linux.o to relevant targets.
* linux-low.c (lwp_set_arch_private_info): New function.
(lwp_arch_private_info): Likewise.
* linux-x86-low.c: Include nat/x86-linux.h.
(arch_lwp_info): Removed structure.
(update_debug_registers_callback):
Use lwp_set_debug_registers_changed.
(x86_linux_prepare_to_resume): Use lwp_debug_registers_changed
and lwp_set_debug_registers_changed.
(x86_linux_new_thread): Use lwp_set_debug_registers_changed.
This patch moves the shared code present on
gdb/linux-nat.c:linux_nat_create_inferior and
gdb/gdbserver/linux-low.c:linux_create_inferior to
nat/linux-personality.c. This code is responsible for disabling
address space randomization based on user setting, and using
<sys/personality.h> to do that. I decided to put the prototype of the
maybe_disable_address_space_randomization on nat/linux-osdata.h
because it seemed the best place to put it.
I regression-tested this patch on Fedora 20 x86_64, and found no
regressions.
gdb/ChangeLog
2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-personality.h.
(linux-personality.o): New rule.
* common/common-defs.h: Include <stdint.h>.
* config/aarch64/linux.mh (NATDEPFILES): Include
linux-personality.o.
* config/alpha/alpha-linux.mh (NATDEPFILES): Likewise.
* config/arm/linux.mh (NATDEPFILES): Likewise.
* config/i386/linux64.mh (NATDEPFILES): Likewise.
* config/i386/linux.mh (NATDEPFILES): Likewise.
* config/ia64/linux.mh (NATDEPFILES): Likewise.
* config/m32r/linux.mh (NATDEPFILES): Likewise.
* config/m68k/linux.mh (NATDEPFILES): Likewise.
* config/mips/linux.mh (NATDEPFILES): Likewise.
* config/pa/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise.
* config/powerpc/spu-linux.mh (NATDEPFILES): Likewise.
* config/s390/linux.mh (NATDEPFILES): Likewise.
* config/sparc/linux64.mh (NATDEPFILES): Likewise.
* config/sparc/linux.mh (NATDEPFILES): Likewise.
* config/tilegx/linux.mh (NATDEPFILES): Likewise.
* config/xtensa/linux.mh (NATDEPFILES): Likewise.
* defs.h: Remove #include <stdint.h> (moved to
common/common-defs.h).
* linux-nat.c: Include nat/linux-personality.h. Remove #include
<sys/personality.h>; do not define ADDR_NO_RANDOMIZE (moved to
nat/linux-personality.c).
(linux_nat_create_inferior): Remove code to disable address space
randomization (moved to nat/linux-personality.c). Create cleanup
to disable address space randomization.
* nat/linux-personality.c: New file.
* nat/linux-personality.h: Likewise.
gdb/gdbserver/ChangeLog
2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (SFILES): Add linux-personality.c.
(linux-personality.o): New rule.
* configure.srv (srv_linux_obj): Add linux-personality.o to the
list of objects to be built.
* linux-low.c: Include nat/linux-personality.h.
(linux_create_inferior): Remove code to disable address space
randomization (moved to ../nat/linux-personality.c). Create
cleanup to disable address space randomization.
Remove native-only core file handling on GNU Hurd. Instead, enable the
x86 target generic core regset logic on the Hurd by providing an
appropriate register offset map.
Thanks to Samuel Thibault for testing!
gdb/
* config/i386/i386gnu.mh (NATDEPFILES): Remove core-regset.o.
* i386gnu-nat.c: Do not include <sys/procfs.h> or "gregset.h".
(CREG_OFFSET, creg_offset, CREG_ADDR): Remove.
(supply_gregset, supply_fpregset): Remove.
* i386gnu-tdep.c (i386gnu_gregset_reg_offset): New variable.
(i386gnu_init_abi): Set tdep->gregset_reg_offset, gregset_num_regs,
and sizeof_gregset.
I cross-compile gdb for msdosdjgpp (both target and host is
i586-pc-msdosdjgpp), so the CC should be i586-pc-msdosdjgpp-gcc.
However, CC is set incorrectly to gcc after config/i386/go32.mh is inlined
into the Makefile.
This patch is to remove the CC setting in config/i386/go32.mh.
gdb:
2014-11-19 Yao Qi <yao@codesourcery.com>
* config/i386/go32.mh (CC): Remove.
This commit renames nine files that contain code used by both 32- and
64-bit Intel ports such that their names are prefixed with "x86"
rather than "i386". All types, functions and variables within these
files are likewise renamed such that their names are prefixed with
"x86" rather than "i386". This makes GDB follow the convention used
by gdbserver such that 32-bit Intel code lives in files called
"i386-*", 64-bit Intel code lives in files called "amd64-*", and code
for both 32- and 64-bit Intel lives in files called "x86-*".
This commit only renames OS-independent files. The Linux ports of
both GDB and gdbserver now follow the i386/amd64/x86 convention fully.
Some ports still use the old convention where "i386" in file/function/
type/variable names can mean "32-bit only" or "32- and 64-bit" but I
don't want to touch ports I can't fully test except where absolutely
necessary.
gdb/ChangeLog:
* i386-nat.h: Renamed as...
* x86-nat.h: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
* i386-nat.c: Renamed as...
* x86-nat.c: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
* common/i386-xstate.h: Renamed as...
* common/x86-xstate.h: New file. All type, function and variable
name prefixes changed from "i386_" to "x86_". All references
updated.
* nat/i386-cpuid.h: Renamed as...
* nat/x86-cpuid.h: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
* nat/i386-gcc-cpuid.h: Renamed as...
* nat/x86-gcc-cpuid.h: New file. All type, function and variable
name prefixes changed from "i386_" to "x86_". All references
updated.
* nat/i386-dregs.h: Renamed as...
* nat/x86-dregs.h: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
* nat/i386-dregs.c: Renamed as...
* nat/x86-dregs.c: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
gdb/gdbserver/ChangeLog:
* i386-low.h: Renamed as...
* x86-low.h: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
* i386-low.c: Renamed as...
* x86-low.c: New file. All type, function and variable name
prefixes changed from "i386_" to "x86_". All references updated.
With the pathmax gnulib module in place, we can use PATH_MAX
consistently throughout, instead of the current mixbag of PATH_MAX and
MAXPATHLEN uses. It's no longer necessary to include sys/param.h
(supposedly, I can't check all ports touched here) for MAXPATHLEN.
Don't remove sys/param.h from GDB's configure.ac, as later tests in
the file use HAVE_SYS_PARAM_H checks.
Tested on x86_64 Fedora 17.
Also cross-built for --host=i686-w64-mingw32, and --host=i586-pc-msdosdjgpp.
gdb/
2013-07-01 Pedro Alves <palves@redhat.com>
* defs.h: Include "pathmax.h".
* utils.c: Don't include sys/param.h.
(gdb_realpath): Remove code that checks for MAXPATHLEN.
* solib-ia64-hpux.c (ia64_hpux_handle_load_event): Use PATH_MAX
instead of MAXPATHLEN.
* solib-sunos.c: Don't include sys/param.h.
* xcoffread.c: Don't include sys/param.h.
* bsd-kvm.c: Don't include sys/param.h.
* darwin-nat.c: Don't include sys/param.h.
(darwin_pid_to_exec_file): Use PATH_MAX instead of MAXPATHLEN.
* darwin-nat-info.c: Don't include sys/param.h.
* fbsd-nat.c (fbsd_pid_to_exec_file): Use PATH_MAX instead of
MAXPATHLEN.
* i386obsd-nat.c: Don't include sys/param.h.
* inf-child.c: Don't include sys/param.h.
(inf_child_fileio_readlink): Use PATH_MAX instead of MAXPATHLEN.
* linux-fork.c: Don't include sys/param.h.
(fork_save_infrun_state): Use PATH_MAX instead of MAXPATHLEN.
* linux-nat.c: Don't include sys/param.h.
(linux_child_pid_to_exec_file, linux_proc_pending_signals)
(linux_proc_pending_signals): Use PATH_MAX instead of MAXPATHLEN.
* m68klinux-nat.c: Don't include sys/param.h.
* nbsd-nat.c: Don't include sys/param.h.
(nbsd_pid_to_exec_file): Use PATH_MAX instead of MAXPATHLEN.
* ppc-linux-nat.c: Don't include sys/param.h.
* rs6000-nat.c: Don't include sys/param.h.
* spu-linux-nat.c. Don't include sys/param.h.
* windows-nat.c: Don't include sys/param.h.
* xtensa-linux-nat.c: Don't include sys/param.h.
* config/i386/nm-fbsd.h: Don't include sys/param.h.
gdb/gdbserver/
2013-07-01 Pedro Alves <palves@redhat.com>
* server.h: Include "pathmax.h".
* linux-low.c: Don't include sys/param.h.
(linux_pid_exe_is_elf_64_file): Use PATH_MAX instead of
MAXPATHLEN.
* win32-low.c: Don't include sys/param.h.
(win32_create_inferior): Use PATH_MAX instead of MAXPATHLEN.
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.
* config/i386/nm-i386sol2.h (CANNOT_STEP_HW_WATCHPOINTS): Remove
macro definition and related comment.
* infrun.c (CANNOT_STEP_HW_WATCHPOINTS): Remove macro.
(resume): Remove code and comment related to this macro.
doc ChangeLog entry:
* gdbint.texinfo (CANNOT_STEP_HW_WATCHPOINTS): Remove explanation
of macro deleted from GDB code.
Joel Brobecker