Commit Graph

18 Commits

Author SHA1 Message Date
Gabriel Krisman Bertazi e34879080d Implement catch syscall group
Implement support to add catchpoints for a group of related syscalls
using the syntax:

(gdb) catch syscall group:<group>
or
(gdb) catch syscall g:<group>

Several groups are predefined in the xml files for all architectures
supported by GDB over Linux.  They are based on the groups defined by
strace.

gdb/

	* xml-syscall.c (get_syscalls_by_group): New.
	(get_syscall_group_names): New.
	(struct syscall_group_desc): New structure to store group data.
	(struct syscalls_info): Include field to store the group list.
	(sysinfo_free_syscall_group_desc): New.
	(free_syscalls_info): Free group list.
	(syscall_group_create_syscall_group_desc): New.
	(syscall_group_add_syscall): New.
	(syscall_create_syscall_desc): Add syscall to its groups.
	(syscall_start_syscall): Load group attribute.
	(syscall_group_get_group_by_name): New.
	(xml_list_syscalls_by_group): New.
	(xml_list_of_groups): New.
	* xml-syscall.h (get_syscalls_by_group): Export function
	to retrieve a list of syscalls filtered by the group name.
	(get_syscall_group_names): Export function to retrieve the list
	of syscall groups.
	* break-catch-syscall.c (catch_syscall_split_args): Verify if
	argument is a syscall group and expand it to a list of syscalls
	when creating catchpoints.
	(catch_syscall_completer): Add word completion for system call
	groups.
	* configure.ac: Include dependency for xsltproc when building
	in maintainer-mode.
	* break-catch-syscall.c (_initialize_breakpoint): Update catch
	syscall command documentation.
	* NEWS: Include section about catching groups of syscalls.
	* configure: Regenerate.
	* data-directory/Makefile.in: Generate syscall xml when building
	in maintainer mode.
	* syscalls/gdb-syscalls.dtd: Include group attribute to the
	syscall element.
	* syscalls/apply-defaults.xsl: New.
	* syscalls/linux-defaults.xml.in: New.
	* syscalls/aarch64-linux.xml: Rename to aarch64-linux.xml.in.
	* syscalls/amd64-linux.xml: Rename to amd64-linux.xml.in.
	* syscalls/arm-linux.xml: Rename to arm-linux.xml.in.
	* syscalls/bfin-linux.xml: Rename to bfin-linux.xml.in.
	* syscalls/i386-linux.xml: Rename to i386-linux.xml.in.
	* syscalls/mips-n32-linux.xml: Rename to mips-n32-linux.xml.in.
	* syscalls/mips-n64-linux.xml: Rename to mips-n64-linux.xml.in.
	* syscalls/mips-o32-linux.xml: Rename to mips-o32-linux.xml.in.
	* syscalls/ppc-linux.xml: Rename to ppc-linux.xml.in.
	* syscalls/ppc64-linux.xml: Rename to ppc64-linux.xml.in.
	* syscalls/s390-linux.xml: Rename to s390-linux.xml.in.
	* syscalls/s390x-linux.xml: Rename to s390x-linux.xml.in.
	* syscalls/sparc-linux.xml: Rename to sparc-linux.xml.in.
	* syscalls/sparc64-linux.xml: Rename to sparc64-linux.xml.in.
	* syscalls/aarch64-linux.xml: Regenerate.
	* syscalls/amd64-linux.xml: Regenerate.
	* syscalls/arm-linux.xml: Regenerate.
	* syscalls/i386-linux.xml: Regenerate.
	* syscalls/mips-n32-linux.xml: Regenerate.
	* syscalls/mips-n64-linux.xml: Regenerate.
	* syscalls/mips-o32-linux.xml: Regenerate.
	* syscalls/ppc-linux.xml: Regenerate.
	* syscalls/ppc64-linux.xml: Regenerate.
	* syscalls/s390-linux.xml: Regenerate.
	* syscalls/s390x-linux.xml: Regenerate.
	* syscalls/sparc-linux.xml: Regenerate.
	* syscalls/sparc64-linux.xml: Regenerate.

gdb/testsuite/

	* gdb.base/catch-syscall.exp (do_syscall_tests): Add call
	to test_catch_syscall_group.
	(test_catch_syscall_group): New.

gdb/doc/

	* gdb.texinfo (Set Catchpoints): Add 'group' argument to catch
	syscall.
2016-07-23 18:38:24 -03:00
John Baldwin e6cdd38e8f Add support for catching system calls to native FreeBSD targets.
All platforms on FreeBSD use a shared system call table, so use a
single XML file to describe the system calls available on each FreeBSD
platform.

Recent versions of FreeBSD include the identifier of the current
system call when reporting a system call entry or exit event in the
ptrace_lwpinfo structure obtained via PT_LWPINFO in fbsd_wait.  As
such, FreeBSD native targets do not use the gdbarch method to fetch
the system call code.  In addition, FreeBSD register sets fetched via
ptrace do not include an equivalent of 'orig_rax' (on amd64 for
example), so the system call code cannot be extracted from the
available registers during a system call exit.  However, GDB assumes
that system call catch points are not supported if the gdbarch method
is not present.  As a workaround, FreeBSD ABIs install a dummy gdbarch
method that throws an internal_error if it is ever invoked.

gdb/ChangeLog:

	* configure.ac: Check for support for system call LWP fields on
	FreeBSD.
	* config.in, configure: Rebuild.
	* data-directory/Makefile.in (SYSCALLS_FILES): Add freebsd.xml.
	* fbsd-nat.c (fbsd_wait) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]:
	Report system call events.
	[HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]
	(fbsd_set_syscall_catchpoint): New function.
	(fbsd_nat_add_target) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]:
	Set "to_set_syscall_catchpoint" to "fbsd_set_syscall_catchpoint".
	* fbsd-tdep.c: Include xml-syscall.h
	(fbsd_get_syscall_number): New function.
	(fbsd_init_abi): Set XML system call file name.
	Add "get_syscall_number" gdbarch method.
	* syscalls/freebsd.xml: New file.
2016-06-24 10:46:03 -07:00
Andreas Arnez bba960fc4b S390: Add syscall info for syscalls up to 374
Represent new Linux syscalls for s390 and s390x in GDB's syscall info.
Add the syscalls from 355 (userfaultfd) up to 374 (mlock2) as well as
the previously reserved NUMA syscalls 268-270, 287, and 310.

gdb/ChangeLog:

	* syscalls/s390-linux.xml: Add NUMA syscalls and new syscalls up
	to 374.
	* syscalls/s390x-linux.xml: Likewise.
2016-03-17 10:55:55 +01:00
Joel Brobecker 618f726fcb GDB copyright headers update after running GDB's copyright.py script.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2016-01-01 08:43:22 +04:00
Andreas Arnez fc24848555 S390: Add syscall info for syscalls from 344 up to 354
Represent new Linux syscalls for s390 and s390x in GDB's syscall info.
Add the syscalls from 344 (finit_module) up to 354 (execveat).

gdb/ChangeLog:

	* syscalls/s390-linux.xml: Add syscalls 344 through 354.
	* syscalls/s390x-linux.xml: Likewise.
2015-06-17 11:17:08 +02:00
Yao Qi f68f11b76d Support catch syscall on aarch64 linux
Hi,
This patch is to support catch syscall on aarch64 linux.  We
implement gdbarch method get_syscall_number for aarch64-linux,
and add aarch64-linux.xml file, which looks straightforward, however
the changes to test case doesn't.

First of all, we enable catch-syscall.exp on aarch64-linux target,
but skip the multi_arch testing on current stage.  I plan to touch
multi arch debugging on aarch64-linux later.

Then, when I run catch-syscall.exp on aarch64-linux, gcc errors that
SYS_pipe isn't defined.  We find that aarch64 kernel only has pipe2
syscall and libc already convert pipe to pipe2.  As a result, I change
catch-syscall.c to use SYS_pipe if it is defined, otherwise use
SYS_pipe2 instead.  The vector all_syscalls in catch-syscall.exp can't
be pre-determined, so I add a new proc setup_all_syscalls to fill it,
according to the availability of SYS_pipe.

Regression tested on {x86_64, aarch64}-linux x {native, gdbserver}.

gdb:

2015-03-18  Yao Qi  <yao.qi@linaro.org>

	PR tdep/18107
	* aarch64-linux-tdep.c: Include xml-syscall.h
	(aarch64_linux_get_syscall_number): New function.
	(aarch64_linux_init_abi): Call
	set_gdbarch_get_syscall_number.
	* syscalls/aarch64-linux.xml: New file.

gdb/testsuite:

2015-03-18  Yao Qi  <yao.qi@linaro.org>

	PR tdep/18107
	* gdb.base/catch-syscall.c [!SYS_pipe] (pipe2_syscall): New
	variable.
	* gdb.base/catch-syscall.exp: Don't skip it on
	aarch64*-*-linux* target.  Remove elements in all_syscalls.
	(test_catch_syscall_multi_arch): Skip it on aarch64*-linux*
	target.
	(setup_all_syscalls): New proc.
2015-03-18 10:47:45 +00:00
Joel Brobecker 32d0add0a6 Update year range in copyright notice of all files owned by the GDB project.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2015-01-01 13:32:14 +04:00
Andreas Arnez 237b092b9f gdb/ChangeLog:
* syscalls/s390x-linux.xml: New file.
	* syscalls/s390-linux.xml: New file.
	* s390-linux-tdep.c (XML_SYSCALL_FILENAME_S390): New macro.
	(XML_SYSCALL_FILENAME_S390X): Likewise.
	(op_svc): New enum value for SVC opcode.
	(s390_sigtramp_frame_sniffer): Replace literal by 'op_svc'.
	(s390_linux_get_syscall_number): New function.
	(s390_gdbarch_init): Register '*get_syscall_number' and the
	syscall xml file name.
	* data-directory/Makefile.in (SYSCALLS_FILES): Add
	"s390-linux.xml" and "s390x-linux.xml".
	* NEWS: Announce new feature.

gdb/testsuite/ChangeLog:
	* gdb.base/catch-syscall.exp: Activate test on s390*-linux.
2014-01-22 18:54:43 +01:00
Joel Brobecker ecd75fc8ee Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
Sergio Durigan Junior a5829458a1 Adding missing files from my last commit. 2013-08-22 22:06:11 +00:00
Joel Brobecker 28e7fd6234 Update years in copyright notice for the GDB files.
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.
2013-01-01 06:33:28 +00:00
Joel Brobecker 0b30217134 Copyright year update in most files of the GDB Project.
gdb/ChangeLog:

        Copyright year update in most files of the GDB Project.
2012-01-04 08:17:56 +00:00
David Daney 385203ed4d gdb/
2011-02-04 David Daney <ddaney@caviumnetworks.com>

	* mips-linux-tdep.c: Include xml-syscall.h.
	(mips_linux_get_syscall_number): New function.
	(mips_linux_init_abi): Add calls to
	mips_linux_get_syscall_number() and set_xml_syscall_file_name().
	* data-directory/Makefile.in (SYSCALLS_FILES): Add
	mips-o32-linux.xml, mips-n32-linux.xml and mips-n64-linux.xml
	* syscalls/mips-n32-linux.xml: New file.
	* syscalls/mips-n64-linux.xml: New file.
	* syscalls/mips-o32-linux.xml: New file.
gdb/testsuite/
2011-02-04 David Daney <ddaney@caviumnetworks.com>

	* gdb.base/catch-syscall.exp: Enable for mips*-linux*.
2011-02-04 18:34:43 +00:00
Joel Brobecker 7b6bb8daac run copyright.sh for 2011. 2011-01-01 15:34:07 +00:00
Mike Frysinger 9102122396 gdb: bfin: new port
Initial support for Blackfin processors.  This supports the standard ABI.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-12-29 16:11:49 +00:00
David S. Miller 09de9781bd gdb: Add sparc*-*-linux catch syscall support.
2010-02-24  David S. Miller  <davem@davemloft.net>

	* gdb_ptrace.h (PT_SYSCALL): If PTRACE_SYSCALL is available, use it.
	* syscalls/sparc-linux.xml: New.
	* syscalls/sparc64-linux.xml: New.
	* Makefile.in (XML_SYSCALL_FILES): Add new syscall XML files.
	* sparc-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC32): Define.
	(sparc32_linux_get_syscall_number): New function.
	(sparc32_linux_init_abi): Set syscall XML file name and hook up
	syscall number fetcher.
	* sparc64-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC64): Define.
	(sparc64_linux_get_syscall_number): New function.
	(sparc64_linux_init_abi): Set syscall XML file name and hook up
	syscall number fetcher.
2010-02-24 15:14:31 +00:00
Sergio Durigan Junior 7f8c59cd53 Adding the DTD file for "Implementing the catch syscall feature". 2009-09-15 03:45:49 +00:00
Sergio Durigan Junior 49af5bf7d1 Adding the XML files for "Implementing the catch syscall feature". 2009-09-15 03:44:41 +00:00