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2022-04-04Remove some globals from nat/windows-nat.cTom Tromey2-138/+135
nat/windows-nat.c has a number of globals that it uses to communicate with its clients (gdb and gdbserver). However, if we ever want the Windows ports to be multi-inferior, globals won't work. This patch takes a step toward that by moving most nat/windows-nat.c globals into a new struct windows_process_info. Many functions are converted to be methods on this object. A couple of globals remain, as they are needed to truly be global due to the way that the Windows debugging APIs work. The clients still have a global for the current process. That is, this patch is a step toward the end goal, but doesn't implement the goal itself.
2022-04-04Remove windows_thread_info destructorTom Tromey2-6/+0
windows_thread_info declares and defines a destructor, but this doesn't need to be explicit.
2022-03-22nat: Split out platform-independent aarch64 debug register support.John Baldwin5-697/+767
Move non-Linux-specific support for hardware break/watchpoints from nat/aarch64-linux-hw-point.c to nat/aarch64-hw-point.c. Changes beyond a simple split of the code are: - aarch64_linux_region_ok_for_watchpoint and aarch64_linux_any_set_debug_regs_state renamed to drop linux_ as they are not platform specific. - Platforms must implement the aarch64_notify_debug_reg_change function which is invoked from the platform-independent code when a debug register changes for a given debug register state. This does not use the indirection of a 'low' structure as is done for x86. - The handling for kernel_supports_any_contiguous_range is not pristine. For non-Linux it is simply defined to true. Some uses of this could perhaps be implemented as new 'low' routines for the various places that check it instead? - Pass down ptid into aarch64_handle_breakpoint and aarch64_handle_watchpoint rather than using current_lwp_ptid which is only defined on Linux. In addition, pass the ptid on to aarch64_notify_debug_reg_change instead of the unused state argument.
2022-02-10gdb/linux: remove ptrace support check for exec, fork, vfork, vforkdone, ↵Simon Marchi2-182/+9
clone, sysgood I think it's safe to remove checking support for these ptrace features, they have all been added in what is now ancient times (around the beginning of Linux 2.6). This allows removing a bit of complexity in linux-nat.c and nat/linux-ptrace.c. It also allows saving one extra fork every time we start debugging on Linux: linux_check_ptrace_features forks a child process to test if some ptrace features are supported. That child process forks a grand-child, to test whether ptrace reports an event for the fork by the child. This is no longer needed, if we assume the kernel supports reporting forks. PTRACE_O_TRACEVFORKDONE was introduced in Linux in this change, in 2003: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=45c1a159b85b3b30afd26a77b4be312226bba416 PTRACE_O_TRACESYSGOOD was supported at least as of this change, in 2002: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=acc7088569c8eef04eeed0eff51d23bb5bcff964 PTRACE_O_TRACEFORK, PTRACE_O_TRACEVFORK, PTRACE_O_TRACEEXEC and PTRACE_O_TRACECLONE were introduced in this change, in 2002: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=a0691b116f6a4473f0fa264210ab9b95771a2b46 Change-Id: Iffb906549a89cc6b619427f976ec044706ab1e8d
2022-02-01gdb, btrace: improve error messagesMarkus Metzger1-2/+19
When trying to use 'record btrace' on a system that does not support it, the error message isn't as clear as it could be. See https://sourceware.org/pipermail/gdb/2022-January/049870.html. Improve the error message in a few cases. Reported-by: Simon Sobisch <simonsobisch@gnu.org>
2022-01-01Automatic Copyright Year update after running gdb/copyright.pyJoel Brobecker48-48/+48
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
2021-12-21[AArch64] Fix typo in error messagesLuis Machado1-2/+2
Fix mispelling of PROT_ME to PROT_MTE in the error messages.
2021-11-22[gdb/build] Fix x86_64 x32 buildTom de Vries1-0/+4
A build error on x86_64 with x32 abi was reported here ( https://sourceware.org/pipermail/gdb/2021-November/049787.html ): ... gdb/nat/amd64-linux-siginfo.c:280:42: error: \ 'struct compat_x32_siginfo_t::<unnamed union>::<unnamed>' has no member \ named 'si_addr_bnd' 280 | #define cpt_si_lower _sifields._sigfault.si_addr_bnd._lower | ^~~~~~~~~~~ gdb/nat/amd64-linux-siginfo.c:337:38: note: in expansion of macro 'cpt_si_lower' 337 | to->cpt_si_lower = from_ptrace.cpt_si_lower; | ^~~~~~~~~~~~ ... The problem is that code added in commit d3d7d1ba3bb "[gdb/tdep] Handle si_addr_bnd in compat_siginfo_from_siginfo" doesn't compile on an x86_64 x32 setup, because compat_x32_siginfo_t doesn't have the si_addr_bnd fields. Fix this conservatively by disabling the code for x32. Tested on x86_64-linux.
2021-11-17gdb/nat/linux-osdata.c: fix build on gcc-12 (string overfow)Sergei Trofimovich1-9/+4
On gcc-12 build fails as: ../../gdbserver/../gdb/nat/linux-osdata.c: In function 'void linux_xfer_osdata_processes(buffer*)': ../../gdbserver/../gdb/nat/linux-osdata.c:330:39: error: '__builtin___sprintf_chk' may write a terminating nul past the end of the destination [-Werror=format-overflow=] 330 | sprintf (core_str, "%d", i); | ^ It's an off-by-one case in an infeasible scenario for negative huge core count. The change switches to std::string for memory handling. Tested by running 'info os processes' and checking CPU cores column.
2021-11-09Fix build on rhES5Tom Tromey1-0/+4
The rhES5 build failed due to an upstream import a while back. The bug here is that, while the 'personality' function exists, ADDR_NO_RANDOMIZE is only defined in <linux/personality.h>, not <sys/personality.h>. However, <linux/personality.h> does not declare the 'personality' function, and <sys/personality.h> and <linux/personality.h> cannot both be included. This patch restores one of the removed configure checks and updates the code to check it. We had this as a local patch at AdaCore, because it seemed like there was no interest upstream. However, now it turns out that this fixes PR build/28555, so I'm sending it now.
2021-10-21gdb, gdbserver: make target_waitstatus safeSimon Marchi2-38/+33
I stumbled on a bug caused by the fact that a code path read target_waitstatus::value::sig (expecting it to contain a gdb_signal value) while target_waitstatus::kind was TARGET_WAITKIND_FORKED. This meant that the active union field was in fact target_waitstatus::value::related_pid, and contained a ptid. The read signal value was therefore garbage, and that caused GDB to crash soon after. Or, since that GDB was built with ubsan, this nice error message: /home/simark/src/binutils-gdb/gdb/linux-nat.c:1271:12: runtime error: load of value 2686365, which is not a valid value for type 'gdb_signal' Despite being a large-ish change, I think it would be nice to make target_waitstatus safe against that kind of bug. As already done elsewhere (e.g. dynamic_prop), validate that the type of value read from the union matches what is supposed to be the active field. - Make the kind and value of target_waitstatus private. - Make the kind initialized to TARGET_WAITKIND_IGNORE on target_waitstatus construction. This is what most users appear to do explicitly. - Add setters, one for each kind. Each setter takes as a parameter the data associated to that kind, if any. This makes it impossible to forget to attach the associated data. - Add getters, one for each associated data type. Each getter validates that the data type fetched by the user matches the wait status kind. - Change "integer" to "exit_status", "related_pid" to "child_ptid", just because that's more precise terminology. - Fix all users. That last point is semi-mechanical. There are a lot of obvious changes, but some less obvious ones. For example, it's not possible to set the kind at some point and the associated data later, as some users did. But in any case, the intent of the code should not change in this patch. This was tested on x86-64 Linux (unix, native-gdbserver and native-extended-gdbserver boards). It was built-tested on x86-64 FreeBSD, NetBSD, MinGW and macOS. The rest of the changes to native files was done as a best effort. If I forgot any place to update in these files, it should be easy to fix (unless the change happens to reveal an actual bug). Change-Id: I0ae967df1ff6e28de78abbe3ac9b4b2ff4ad03b7
2021-10-21Fix ARMv8.4 for hw watchpoint and breakpointAndrew Pinski2-0/+3
Just like my previoius patch for ARMv8.1 and v8.2 (49ecef2a7da2ee9df4), this adds ARMv8.4 debug arch as being compatible for hw watchpoint and breakpoints.
2021-10-21Refactor code slightly in nat/aarch64-linux-hw-point.c ↵Andrew Pinski1-6/+18
(aarch64_linux_get_debug_reg_capacity) Since the two locations which check the debug arch are the same code currently, it is a good idea to factor it out to a new function and just use that function from aarch64_linux_get_debug_reg_capacity. This is also the first step to support ARMv8.4 debug arch.
2021-09-30gdbsupport: make gdb_open_cloexec return scoped_fdSimon Marchi1-9/+4
Make gdb_open_cloexec return a scoped_fd, to encourage using automatic management of the file descriptor closing. Except in the most trivial cases, I changed the callers to just release the fd, which retains their existing behavior. That will allow the transition to using scoped_fd more to go gradually, one caller at a time. Change-Id: Ife022b403f96e71d5ebb4f1056ef6251b30fe554
2021-09-23Remove defaulted 'tid' parameter to ptid_t constructorTom Tromey2-3/+3
I wanted to find, and potentially modify, all the spots where the 'tid' parameter to the ptid_t constructor was used. So, I temporarily removed this parameter and then rebuilt. In order to make it simpler to search through the "real" (nonzero) uses of this parameter, something I knew I'd have to do multiple times, I removed any ", 0" from constructor calls. Co-Authored-By: John Baldwin <jhb@FreeBSD.org>
2021-09-03Use CORE_ADDR as return type from x86_dr_low_get_addrTom Tromey1-1/+1
On a Windows build locally, watchpoints started failing. I tracked this down to x86_dr_low_get_addr returning an 'unsigned long'... in this particular build, this is a 32-bit type, but the inferior is a 64-bit program. This patch fixes the problem by changing the return type. No other change is required, because this matches the function pointer in struct x86_dr_low_type.
2021-07-23gdb: make inferior::m_cwd an std::stringSimon Marchi1-9/+6
Same idea as the previous patch, but for m_cwd. To keep things consistent across the board, change get_inferior_cwd as well, which is shared with GDBserver. So update the related GDBserver code too. Change-Id: Ia2c047fda738d45f3d18bc999eb67ceb8400ce4e
2021-07-17gdb: convert nat/x86-dregs.c macros to functionsSimon Marchi1-11/+48
I'm debugging why GDB crashes on OpenBSD/amd64, turns out it's because x86_dr_low.get_status is nullptr. It would have been useful to be able to break on x86_dr_low_get_status, so I thought it would be a good reason to convert these function-like macros into functions. Change-Id: Ic200b50ef8455b4697bc518da0fa2bb704cf4721
2021-06-07nat/amd64-linux-siginfo.c: Remove typedefsPedro Alves1-14/+14
Since GDB is written in C++ now, we don't need struct/union typedefs any more. Remove them from nat/amd64-linux-siginfo.c. gdb/ChangeLog: yyyy-mm-dd Pedro Alves <pedro@palves.net> * nat/amd64-linux-siginfo.c (union nat_sigval): Rename to ... (nat_sigval_t): ... this and remove typedef of same name. (struct nat_siginfo): Rename to ... (nat_siginfo_t): ... this and remove typedef of same name. (struct compat_sigval): Rename to ... (compat_sigval_t): ... this and remove typedef of same name. (struct compat_siginfo): Rename to ... (compat_siginfo_t): ... this and remove typedef of same name. (struct compat_x32_siginfo): Rename to ... (compat_x32_siginfo_t): ... this and remove typedef of same name. (amd64_linux_siginfo_fixup_common): Adjust.
2021-06-07nat/amd64-linux-siginfo.c: Move align attribute from typedef to structPedro Alves1-2/+2
Compiling GDB with current git Clang (future 13) fails with (among other problems), this issue: $ make nat/amd64-linux-siginfo.o CXX nat/amd64-linux-siginfo.o src/gdb/nat/amd64-linux-siginfo.c:590:35: warning: passing 4-byte aligned argument to 8-byte aligned parameter 1 of 'compat_x32_siginfo_from_siginfo' may result in an unaligned pointer access [-Walign-mismatch] compat_x32_siginfo_from_siginfo ((struct compat_x32_siginfo *) inf, ^ 1 warning generated. The problem is that: - The flagged code is casting to "struct compat_x32_siginfo" pointer directly instead of to a pointer to the compat_x32_siginfo_t typedef. The called function is declared with a compat_x32_siginfo_t typedef pointer parameter. - Only the typedef has the __aligned__ attribute. Fix this by moving the attribute to the struct, so both struct and typedef have the same alignment. The next patch removes the typedefs. gdb/ChangeLog: yyyy-mm-dd Pedro Alves <pedro@palves.net> * nat/amd64-linux-siginfo.c (compat_x32_siginfo_t): Move __attribute__ __aligned__ from the typedef to the struct.
2021-05-27gdb: fix tab after space indentation issuesSimon Marchi2-4/+4
I spotted some indentation issues where we had some spaces followed by tabs at beginning of line, that I wanted to fix. So while at it, I did a quick grep to find and fix all I could find. gdb/ChangeLog: * Fix tab after space indentation issues throughout. Change-Id: I1acb414dd9c593b474ae2b8667496584df4316fd
2021-05-27gdb: fix some indentation issuesSimon Marchi1-9/+9
I wrote a small script to spot a pattern of indentation mistakes I saw happened in breakpoint.c. And while at it I ran it on all files and fixed what I found. No behavior changes intended, just indentation and addition / removal of curly braces. gdb/ChangeLog: * Fix some indentation mistakes throughout. gdbserver/ChangeLog: * Fix some indentation mistakes throughout. Change-Id: Ia01990c26c38e83a243d8f33da1d494f16315c6e
2021-05-17Fix ubsan buildTom Tromey1-3/+3
I tried a build using the undefined behavior sanitizer, and gcc gave this error: In file included from /usr/include/string.h:495, from ../gnulib/import/string.h:41, from ../../binutils-gdb/gdb/../gdbsupport/common-defs.h:95, from ../../binutils-gdb/gdb/nat/linux-osdata.c:20: In function 'char* strncpy(char*, const char*, size_t)', inlined from 'void time_from_time_t(char*, int, TIME_T)' at ../../binutils-gdb/gdb/nat/linux-osdata.c:923:15, inlined from 'void time_from_time_t(char*, int, TIME_T)' at ../../binutils-gdb/gdb/nat/linux-osdata.c:911:1, inlined from 'void linux_xfer_osdata_sem(buffer*)' at ../../binutils-gdb/gdb/nat/linux-osdata.c:1082:22: /usr/include/bits/string_fortified.h:106:34: error: 'char* __builtin_strncpy(char*, const char*, long unsigned int)' specified bound 32 equals destination size [-Werror=stringop-truncation] This patch fixes the problem by subtracting one from the length parameter to strncpy. I changed a couple of other similar functions -- gcc does not warn about these, but I didn't see any substantial difference between the different cases, and I think these are just latent warnings, to be triggered in the future by a change to inlining heuristics. gdb/ChangeLog 2021-05-17 Tom Tromey <tromey@adacore.com> * nat/linux-osdata.c (user_from_uid, time_from_time_t) (group_from_gid): Subtract one from strncpy length.
2021-05-10gdb, gdbserver: make status_to_str display the signal nameSimon Marchi1-4/+6
I was looking at some "set debug lin-lwp" logs, and saw that a thread received the "Child exited" signal. It took me a moment to realize that this was SIGCHLD. I then thought that it would be nice for status_to_str to show the signal name (SIGCHLD) in addition to the description "Child exited", since people are much more used to referring to signals using their names. Fortunately, libiberty contains a handy function to get the signal name from the signal number, strsigno, use that. The output of "set debug lin-lwp" now looks like: [linux-nat] linux_nat_wait_1: waitpid 1209631 received SIGTRAP - Trace/breakpoint trap (stopped) gdb/ChangeLog: * nat/linux-waitpid.c (status_to_str): Show signal name. Change-Id: I8ad9b1e744dd64461fd87b08d5c29f9ef97c4691
2021-05-08gdb, gdbserver: make status_to_str return std::stringSimon Marchi2-15/+10
Instead of using a static buffer. This is safer, and we don't really mind about any extra dynamic allocation here, since it's only used for debug purposes. gdb/ChangeLog: * nat/linux-waitpid.c (status_to_str): Return std::string. * nat/linux-waitpid.h (status_to_str): Likewise. * linux-nat.c (linux_nat_post_attach_wait): Adjust. (linux_nat_target::attach): Adjust. (linux_handle_extended_wait): Adjust. (wait_lwp): Adjust. (stop_wait_callback): Adjust. (linux_nat_filter_event): Adjust. (linux_nat_wait_1): Adjust. * nat/linux-waitpid.c (status_to_str): Adjust. * nat/linux-waitpid.h (status_to_str): Adjust. gdbserver/ChangeLog: * linux-low.cc (linux_process_target::wait_for_event_filtered): Adjust to status_to_str returning std::string. Change-Id: Ia8aead70270438a5690f243e6faafff6c38ff757
2021-05-08Don't run personality syscall at configure time; don't check it at allPedro Alves1-11/+1
Currently, in order to tell whether support for disabling address space randomization on Linux is available, GDB checks if the personality syscall works, at configure time. I.e., it does a run test, instead of a compile/link test: AC_RUN_IFELSE([PERSONALITY_TEST], [have_personality=true], [have_personality=false], This is a bit bogus, because the machine the build is done on may not (and is when you consider distro gdbs) be the machine that eventually runs gdb. It would be better if this were a compile/link test instead, and then at runtime, GDB coped with the personality syscall failing. Actually, GDB already copes. One environment where this is problematic is building GDB in a Docker container -- by default, Docker runs the container with seccomp, with a profile that disables the personality syscall. You can tell Docker to use a less restricted seccomp profile, but I think we should just fix it in GDB. "man 2 personality" says: This system call first appeared in Linux 1.1.20 (and thus first in a stable kernel release with Linux 1.2.0); library support was added in glibc 2.3. ... ADDR_NO_RANDOMIZE (since Linux 2.6.12) With this flag set, disable address-space-layout randomization. glibc 2.3 was released in 2002. Linux 2.6.12 was released in 2005. The original patch that added the configure checks was submitted in 2008. The first version of the patch that was submitted to the list called personality from common code: https://sourceware.org/pipermail/gdb-patches/2008-June/058204.html and then was moved to Linux-specific code: https://sourceware.org/pipermail/gdb-patches/2008-June/058209.html Since HAVE_PERSONALITY is only checked in Linux code, and ADDR_NO_RANDOMIZE exists for over 15 years, I propose just completely removing the configure checks. If for some odd reason, some remotely modern system still needs a configure check, then we can revert this commit but drop the AC_RUN_IFELSE in favor of always doing the AC_LINK_IFELSE cross-compile fallback. gdb/ChangeLog: * linux-nat.c (linux_nat_target::supports_disable_randomization): Remove references to HAVE_PERSONALITY. * nat/linux-personality.c: Remove references to HAVE_PERSONALITY. (maybe_disable_address_space_randomization) (~maybe_disable_address_space_randomizatio): Remove references to HAVE_PERSONALITY. * config.in, configure: Regenerate. gdbserver/ChangeLog: * linux-low.cc: (linux_process_target::supports_disable_randomization): Remove reference to HAVE_PERSONALITY. * config.in, configure: Regenerate. gdbsupport/ChangeLog: * common.m4 (personality test): Remove.
2021-04-30Make get_image_name staticTom Tromey2-8/+7
The only callers of get_image_name are nat/windows-nat.c, so make it static. gdb/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * nat/windows-nat.h (get_image_name): Don't declare. * nat/windows-nat.c (get_image_name): Now static.
2021-04-30Share DLL code between gdb and gdbserverTom Tromey2-1/+175
This moves the new DLL-loading code into nat/windows-nat.c, and changes both gdb and gdbserver to use the shared code. One client-provided callback, handle_load_dll, is changed to allow the code to be shared. This callback was actually never called from nat/windows-nat.c; maybe I had planned to share more here and then didn't finish... I'm not sure. gdb/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * windows-nat.c (windows_nat::handle_load_dll): Update. (windows_nat_target::get_windows_debug_event): Call dll_loaded_event. (windows_add_all_dlls, windows_add_dll): Move to nat/windows-nat.c. * nat/windows-nat.h (handle_load_dll): Change parameters. (dll_loaded_event, windows_add_all_dlls): Declare. * nat/windows-nat.c (windows_add_dll, windows_add_all_dlls): Move from windows-nat.c. (dll_loaded_event): New function. gdbserver/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * win32-low.cc (do_initial_child_stuff): Update. (windows_nat::handle_load_dll): Rename from win32_add_one_solib. Change parameter type. (win32_add_dll, win32_add_all_dlls) (windows_nat::handle_load_dll): Remove. (get_child_debug_event): Call dll_loaded_event.
2021-04-30Use nat/windows-nat function indirection codeTom Tromey2-1/+6
This changes gdbserver to use the function indirection code that was just moved into nat/windows-nat.[ch]. One additional function is used by gdbserver that was not used by gdb. gdb/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * nat/windows-nat.h (GenerateConsoleCtrlEvent): New define. (GenerateConsoleCtrlEvent_ftype, GenerateConsoleCtrlEvent): Declare. * nat/windows-nat.c (GenerateConsoleCtrlEvent): Define. (initialize_loadable): Initialize GenerateConsoleCtrlEvent. gdbserver/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * win32-low.cc (GETPROCADDRESS): Remove. (winapi_DebugActiveProcessStop, winapi_DebugSetProcessKillOnExit) (winapi_DebugBreakProcess, winapi_GenerateConsoleCtrlEvent) (winapi_Wow64SetThreadContext, win32_Wow64GetThreadContext) (win32_Wow64SetThreadContext): Remove. (win32_set_thread_context, do_initial_child_stuff) (win32_process_target::attach, win32_process_target::detach): Update. (winapi_EnumProcessModules, winapi_EnumProcessModulesEx) (winapi_GetModuleInformation, winapi_GetModuleInformationA): Remove. (win32_EnumProcessModules, win32_EnumProcessModulesEx) (win32_GetModuleInformation, win32_GetModuleInformationA): Remove. (load_psapi): Remove. (win32_add_dll, win32_process_target::request_interrupt): Update. (initialize_low): Call initialize_loadable.
2021-04-30Move function indirection code to nat/windows-natTom Tromey2-0/+232
gdb and gdbserver both look for functions in some Windows DLLs at runtime. This patch moves this code out of gdb and into nat/windows-nat, so it can be shared by both programs. gdb/ChangeLog 2021-04-30 Tom Tromey <tromey@adacore.com> * windows-nat.c: Move code to nat/windows-nat.[ch]. (_initialize_windows_nat): Call initialize_loadable. * nat/windows-nat.h (AdjustTokenPrivileges) (DebugActiveProcessStop, DebugBreakProcess) (DebugSetProcessKillOnExit, EnumProcessModules) (EnumProcessModulesEx, GetModuleInformation) (GetModuleFileNameExA, GetModuleFileNameExW) (LookupPrivilegeValueA, OpenProcessToken, GetConsoleFontSize) (GetCurrentConsoleFont, Wow64SuspendThread) (Wow64GetThreadContext, Wow64SetThreadContext) (Wow64GetThreadSelectorEntry): Move from windows-nat.c. (AdjustTokenPrivileges_ftype) (DebugActiveProcessStop_ftype, DebugBreakProcess_ftype) (DebugSetProcessKillOnExit_ftype, EnumProcessModules_ftype) (EnumProcessModulesEx_ftype, GetModuleInformation_ftype) (GetModuleFileNameExA_ftype, GetModuleFileNameExW_ftype) (LookupPrivilegeValueA_ftype, OpenProcessToken_ftype) (GetConsoleFontSize_ftype) (GetCurrentConsoleFont_ftype, Wow64SuspendThread_ftype) (Wow64GetThreadContext_ftype, Wow64SetThreadContext_ftype) (Wow64GetThreadSelectorEntry_ftype): Likewise. (initialize_loadable): Declare. * nat/windows-nat.c (AdjustTokenPrivileges) (DebugActiveProcessStop, DebugBreakProcess) (DebugSetProcessKillOnExit, EnumProcessModules) (EnumProcessModulesEx, GetModuleInformation, GetModuleFileNameExA) (GetModuleFileNameExW, LookupPrivilegeValueA, OpenProcessToken) (GetCurrentConsoleFont, GetConsoleFontSize, Wow64SuspendThread) (Wow64GetThreadContext, Wow64SetThreadContext) (Wow64GetThreadSelectorEntry): Define. (bad, bad_GetCurrentConsoleFont, bad_GetConsoleFontSize): Move from windows-nat.c. (initialize_loadable): Likewise, and rename.
2021-04-12gdb, gdbserver: remove WinCE support codeSimon Marchi2-16/+0
The support for WinCE was removed with commit 84b300de3666 ("gdbserver: remove support for ARM/WinCE"). There is some leftover code for WinCE support, guarded by the _WIN32_WCE macro, which I didn't know of at the time. I didn't remove the _WIN32_WCE references in the tests, because in theory we still support the WinCE architecture in GDB (when debugging remotely). So someone could run a test with that (although I'd be really surprised). gdb/ChangeLog: * nat/windows-nat.c: Remove all code guarded by _WIN32_WCE. * nat/windows-nat.h: Likewise. gdbserver/ChangeLog: * win32-low.cc: Remove all code guarded by _WIN32_WCE. * win32-low.h: Likewise. Change-Id: I7a871b897e2135dc195b10690bff2a01d9fac05a
2021-04-09[AArch64] Fix include order for MTELuis Machado1-1/+2
Similarly to commit 665af52ec2a52184d39a76d6e724fa4733dbab3c, fix a build failure seen with an updated glibc, due to the enum/constant mismatch. The old include file order eventually makes asm/ptrace.h get included before sys/ptrace.h. This patch fixes it. Seems fairly obvious and I'll push it shortly. gdb/ChangeLog: 2021-04-09 Luis Machado <luis.machado@linaro.org> * nat/aarch64-mte-linux-ptrace.c: Update include file order.
2021-03-24AArch64: Implement memory tagging target methods for AArch64Luis Machado2-0/+227
The patch implements the memory tagging target hooks for AArch64, so we can handle MTE. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * Makefile.in (ALL_64_TARGET_OBS): Add arch/aarch64-mte-linux.o. (HFILES_NO_SRCDIR): Add arch/aarch64-mte-linux.h and nat/aarch64-mte-linux-ptrace.h. * aarch64-linux-nat.c: Include nat/aarch64-mte-linux-ptrace.h. (aarch64_linux_nat_target) <supports_memory_tagging>: New method override. <fetch_memtags>: New method override. <store_memtags>: New method override. (aarch64_linux_nat_target::supports_memory_tagging): New method. (aarch64_linux_nat_target::fetch_memtags): New method. (aarch64_linux_nat_target::store_memtags): New method. * arch/aarch64-mte-linux.c: New file. * arch/aarch64-mte-linux.h: Include gdbsupport/common-defs.h. (AARCH64_MTE_GRANULE_SIZE): Define. (aarch64_memtag_type): New enum. (aarch64_mte_get_tag_granules): New prototype. * configure.nat (NATDEPFILES): Add nat/aarch64-mte-linux-ptrace.o. * configure.tgt (aarch64*-*-linux*): Add arch/aarch64-mte-linux.o. * nat/aarch64-mte-linux-ptrace.c: New file. * nat/aarch64-mte-linux-ptrace.h: New file.
2021-03-24AArch64: Add MTE ptrace requestsLuis Machado1-0/+33
This patch adds the required ptrace request definitions into a new include file that will be used by the next patches. They are PTRACE_PEEKMTETAGS and PTRACE_POKEMTETAGS. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * Makefile.in (HFILES_NO_SRCDIR): Add nat/aarch64-mte-linux-ptrace.h. * nat/aarch64-mte-linux-ptrace.h: New file.
2021-02-25Add comment regarding include order of <sys/ptrace.h> and <asm/ptrace.h>Kevin Buettner1-0/+6
I added the same comment for nat/aarch64-linux-hw-point.c yesterday. Christian suggested adding the comment for the other file that I had identified as including both <sys/ptrace.h> and <asm/ptrace.h>. I searched the sources in gdb/, but found no other files which include both of these headers. If possible, I would prefer to see us use <sys/ptrace.h> when possible, however, from past experience, I've found that this file does not always contain all of the constants, etc. required by the particular source file. gdb/ChangeLog: * nat/aarch64-sve-linux-ptrace.h: Add comment regarding include order for <sys/ptrace.h> and <asm/ptrace.h>.
2021-02-24Add comment regarding include order of <sys/ptrace.h> and <asm/ptrace.h>Kevin Buettner1-0/+7
gdb/ChangeLog: * nat/aarch64-linux-hw-point.c: Add comment regarding include order for <sys/ptrace.h> and <asm/ptrace.h>.
2021-02-24Fix aarch64-linux-hw-point.c build problemKevin Buettner1-1/+1
Due to a recent glibc header file change, the file nat/aarch64-linux-hw-point.c no longer builds on Fedora rawhide. An enum for PTRACE_SYSEMU is now provided by <sys/ptrace.h>. In the past, PTRACE_SYSEMU was defined only in <asm/ptrace.h>. This is what it looks like... In <asm/ptrace.h>: #define PTRACE_SYSEMU 31 In <sys/ptrace.h>: enum __ptrace_request { ... PTRACE_SYSEMU = 31, #define PT_SYSEMU PTRACE_SYSEMU ... } When <asm/ptrace.h> and <sys/ptrace.h> are both included in a source file, we run into the following build problem when the former is included before the latter: In file included from nat/aarch64-linux-hw-point.c:26: /usr/include/sys/ptrace.h:86:3: error: expected identifier before numeric constant 86 | PTRACE_SYSEMU = 31, | ^~~~~~~~~~~~~ (There are more errors after this one too.) The file builds without error when <asm/ptrace.h> is included after <sys/ptrace.h>. I found that this is already done in nat/aarch64-sve-linux-ptrace.h (which is included by nat/aarch64-linux-ptrace.c). I've tested this change on Fedora rawhide and Fedora 33, both running on an aarch64 machine. gdb/ChangeLog: * nat/aarch64-linux-hw-point.c: Include <asm/ptrace.h> after <sys/ptrace.h>.
2021-02-18amd64-linux-siginfo.c: Adjust include order to avoid gnulib errorKevin Buettner1-1/+1
On Fedora rawhide, after updating to glibc-2.33, I'm seeing the following build failure: CXX nat/amd64-linux-siginfo.o In file included from /usr/include/bits/sigstksz.h:24, from /usr/include/signal.h:315, from ../gnulib/import/signal.h:52, from /ironwood1/sourceware-git/rawhide-gnulib/bld/../../worktree-gnulib/gdbserver/../gdb/nat/amd64-linux-siginfo.c:20: ../gnulib/import/unistd.h:663:3: error: #error "Please include config.h first." 663 | #error "Please include config.h first." | ^~~~~ glibc-2.33 has changed signal.h to now include <bits/sigstksz.h> which, in turn, includes <unistd.h>. For a gdb build, this causes the gnulib version of unistd.h to be pulled in first. The build failure shown above happens because gnulib's config.h has not been included before the include of <signal.h>. The fix is simple - we just rearrange the order of the header file includes to make sure that gdbsupport/commondefs.h is included before attempting to include signal.h. Note that gdbsupport/commondefs.h includes <gnulib/config.h>. Build and regression tested on Fedora 33. On Fedora rawhide, GDB builds again. gdb/ChangeLog: * nat/amd64-linux-siginfo.c: Include "gdbsupport/common-defs.h" (which in turn includes <gnulib/config.h>) before include of <signal.h>.
2021-01-26Use debug_prefixed_printf_cond in windows-nat.cTom Tromey1-12/+12
This changes windows-nat.c and nat/windows-nat.c to use the new debug_prefixed_printf_cond facility. I tried this out on a Windows build and I think it makes the output look a little nicer. 2021-01-26 Tom Tromey <tromey@adacore.com> * windows-nat.c (DEBUG_EXEC, DEBUG_EVENTS, DEBUG_MEM) (DEBUG_EXCEPT): Use debug_prefixed_printf_cond. (windows_init_thread_list, windows_nat::handle_load_dll) (windows_nat::handle_unload_dll, windows_nat_target::resume) (windows_nat_target::resume) (windows_nat_target::get_windows_debug_event) (windows_nat_target::interrupt, windows_xfer_memory) (windows_nat_target::close): Update. * nat/windows-nat.c (DEBUG_EVENTS): Use debug_prefixed_printf_cond. (matching_pending_stop, fetch_pending_stop) (continue_last_debug_event): Update.
2021-01-20gdb: make some variables staticSimon Marchi1-1/+1
I'm trying to enable clang's -Wmissing-variable-declarations warning. This patch fixes all the obvious spots where we can simply add "static" (at least, found when building on x86-64 Linux). gdb/ChangeLog: * aarch64-linux-tdep.c (aarch64_linux_record_tdep): Make static. * aarch64-tdep.c (tdesc_aarch64_list, aarch64_prologue_unwind, aarch64_stub_unwind, aarch64_normal_base, ): Make static. * arm-linux-tdep.c (arm_prologue_unwind): Make static. * arm-tdep.c (struct frame_unwind): Make static. * auto-load.c (auto_load_safe_path_vec): Make static. * csky-tdep.c (csky_stub_unwind): Make static. * gdbarch.c (gdbarch_data_registry): Make static. * gnu-v2-abi.c (gnu_v2_abi_ops): Make static. * i386-netbsd-tdep.c (i386nbsd_mc_reg_offset): Make static. * i386-tdep.c (i386_frame_setup_skip_insns, i386_tramp_chain_in_reg_insns, i386_tramp_chain_on_stack_insns): Make static. * infrun.c (observer_mode): Make static. * linux-nat.c (sigchld_action): Make static. * linux-thread-db.c (thread_db_list): Make static. * maint-test-options.c (maintenance_test_options_list): * mep-tdep.c (mep_csr_registers): Make static. * mi/mi-cmds.c (struct mi_cmd_stats): Remove struct type name. (stats): Make static. * nat/linux-osdata.c (struct osdata_type): Make static. * ppc-netbsd-tdep.c (ppcnbsd_reg_offsets): Make static. * progspace.c (last_program_space_num): Make static. * python/py-param.c (struct parm_constant): Remove struct type name. (parm_constants): Make static. * python/py-record-btrace.c (btpy_list_methods): Make static. * python/py-record.c (recpy_gap_type): Make static. * record.c (record_goto_cmdlist): Make static. * regcache.c (regcache_descr_handle): Make static. * registry.h (DEFINE_REGISTRY): Make definition static. * symmisc.c (std_in, std_out, std_err): Make static. * top.c (previous_saved_command_line): Make static. * tracepoint.c (trace_user, trace_notes, trace_stop_notes): Make static. * unittests/command-def-selftests.c (nr_duplicates, nr_invalid_prefixcmd, lists): Make static. * unittests/observable-selftests.c (test_notification): Make static. * unittests/optional/assignment/1.cc (counter): Make static. * unittests/optional/assignment/2.cc (counter): Make static. * unittests/optional/assignment/3.cc (counter): Make static. * unittests/optional/assignment/4.cc (counter): Make static. * unittests/optional/assignment/5.cc (counter): Make static. * unittests/optional/assignment/6.cc (counter): Make static. gdbserver/ChangeLog: * ax.cc (bytecode_address_table): Make static. * debug.cc (debug_file): Make static. * linux-low.cc (stopping_threads): Make static. (step_over_bkpt): Make static. * linux-x86-low.cc (amd64_emit_ops, i386_emit_ops): Make static. * tracepoint.cc (stop_tracing_bkpt, flush_trace_buffer_bkpt, alloced_trace_state_variables, trace_buffer_ctrl, tracing_start_time, tracing_stop_time, tracing_user_name, tracing_notes, tracing_stop_note): Make static. Change-Id: Ic1d8034723b7802502bda23770893be2338ab020
2021-01-18[gdb/tdep] Handle si_addr_bnd in compat_siginfo_from_siginfoTom de Vries1-0/+13
When running test-case gdb.arch/i386-mpx-sigsegv.exp with target board unix/-m32, we run into: ... (gdb) continue^M Continuing.^M Saw a #BR! status 1 at 0x8048c2d^M ^M Program received signal SIGSEGV, Segmentation fault^M Upper bound violation while accessing address 0x0804c15c^M Bounds: [lower = 0x00000000, upper = 0x00000000].^M 0x08048a4f in lower (p=0x804c160, a=0x804c180, b=0x804c1a0, c=0x804c1c0, \ d=0x804c1e0, len=1) at i386-mpx-sigsegv.c:79^M 79 value = *(p - len);^M (gdb) FAIL: gdb.arch/i386-mpx-sigsegv.exp: MPX signal segv Lower: 0 ... The problem is that lower and upper in the Bounds message are 0x0, which is caused by $_siginfo._sifields._sigfault._addr_bnd.{_lower,_upper} evaluating to 0x0. Fix this by copying the si_lower/si_upper fields in compat_siginfo_from_siginfo. Tested on x86_64-linux, with target board unix/-m32. gdb/ChangeLog: 2021-01-18 Tom de Vries <tdevries@suse.de> PR tdep/27172 * nat/amd64-linux-siginfo.c (cpt_si_lower, cpt_si_upper, SEGV_BNDERR): New macro. (compat_siginfo_from_siginfo): Copy cpt_si_lower and cpt_si_upper for SEGV_BNDERR.
2021-01-01Update copyright year range in all GDB filesJoel Brobecker46-46/+46
This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
2020-12-10[AArch64] SVE/FPSIMD fixup for big endianLuis Machado1-14/+63
The FPSIMD dump in signal frames and ptrace FPSIMD dump in the SVE context structure follows the target endianness, whereas the SVE dumps are endianness-independent (LE). Therefore, when the system is in BE mode, we need to reverse the bytes for the FPSIMD data. Given the V registers are larger than 64-bit, I've added a way for value bytes to be set, as opposed to passing a 64-bit fixed quantity. This fits nicely with the unwinding *_got_bytes function and makes the trad-frame more flexible and capable of saving larger registers. The memory for the bytes is allocated via the frame obstack, so it gets freed after we're done inspecting the frame. gdb/ChangeLog: 2020-12-10 Luis Machado <luis.machado@linaro.org> * aarch64-linux-tdep.c (aarch64_linux_restore_vreg) New function. (aarch64_linux_sigframe_init): Call aarch64_linux_restore_vreg. * aarch64-tdep.h (V_REGISTER_SIZE): Move to ... * arch/aarch64.h: ... here. * nat/aarch64-sve-linux-ptrace.c: Include endian.h. (aarch64_maybe_swab128): New function. (aarch64_sve_regs_copy_to_reg_buf) (aarch64_sve_regs_copy_from_reg_buf): Adjust FPSIMD entries. * trad-frame.c (trad_frame_reset_saved_regs): Initialize the data field. (TF_REG_VALUE_BYTES): New enum value. (trad_frame_value_bytes_p): New function. (trad_frame_set_value_bytes): New function. (trad_frame_set_reg_value_bytes): New function. (trad_frame_get_prev_register): Handle register values saved as bytes. * trad-frame.h (trad_frame_set_reg_value_bytes): New prototype. (struct trad_frame_saved_reg) <data>: New field. (trad_frame_set_value_bytes): New prototype. (trad_frame_value_bytes_p): New prototype.
2020-11-02gdb, gdbserver, gdbsupport: fix leading space vs tabs issuesSimon Marchi6-32/+32
Many spots incorrectly use only spaces for indentation (for example, there are a lot of spots in ada-lang.c). I've always found it awkward when I needed to edit one of these spots: do I keep the original wrong indentation, or do I fix it? What if the lines around it are also wrong, do I fix them too? I probably don't want to fix them in the same patch, to avoid adding noise to my patch. So I propose to fix as much as possible once and for all (hopefully). One typical counter argument for this is that it makes code archeology more difficult, because git-blame will show this commit as the last change for these lines. My counter counter argument is: when git-blaming, you often need to do "blame the file at the parent commit" anyway, to go past some other refactor that touched the line you are interested in, but is not the change you are looking for. So you already need a somewhat efficient way to do this. Using some interactive tool, rather than plain git-blame, makes this trivial. For example, I use "tig blame <file>", where going back past the commit that changed the currently selected line is one keystroke. It looks like Magit in Emacs does it too (though I've never used it). Web viewers of Github and Gitlab do it too. My point is that it won't really make archeology more difficult. The other typical counter argument is that it will cause conflicts with existing patches. That's true... but it's a one time cost, and those are not conflicts that are difficult to resolve. I have also tried "git rebase --ignore-whitespace", it seems to work well. Although that will re-introduce the faulty indentation, so one needs to take care of fixing the indentation in the patch after that (which is easy). gdb/ChangeLog: * aarch64-linux-tdep.c: Fix indentation. * aarch64-ravenscar-thread.c: Fix indentation. * aarch64-tdep.c: Fix indentation. * aarch64-tdep.h: Fix indentation. * ada-lang.c: Fix indentation. * ada-lang.h: Fix indentation. * ada-tasks.c: Fix indentation. * ada-typeprint.c: Fix indentation. * ada-valprint.c: Fix indentation. * ada-varobj.c: Fix indentation. * addrmap.c: Fix indentation. * addrmap.h: Fix indentation. * agent.c: Fix indentation. * aix-thread.c: Fix indentation. * alpha-bsd-nat.c: Fix indentation. * alpha-linux-tdep.c: Fix indentation. * alpha-mdebug-tdep.c: Fix indentation. * alpha-nbsd-tdep.c: Fix indentation. * alpha-obsd-tdep.c: Fix indentation. * alpha-tdep.c: Fix indentation. * amd64-bsd-nat.c: Fix indentation. * amd64-darwin-tdep.c: Fix indentation. * amd64-linux-nat.c: Fix indentation. * amd64-linux-tdep.c: Fix indentation. * amd64-nat.c: Fix indentation. * amd64-obsd-tdep.c: Fix indentation. * amd64-tdep.c: Fix indentation. * amd64-windows-tdep.c: Fix indentation. * annotate.c: Fix indentation. * arc-tdep.c: Fix indentation. * arch-utils.c: Fix indentation. * arch/arm-get-next-pcs.c: Fix indentation. * arch/arm.c: Fix indentation. * arm-linux-nat.c: Fix indentation. * arm-linux-tdep.c: Fix indentation. * arm-nbsd-tdep.c: Fix indentation. * arm-pikeos-tdep.c: Fix indentation. * arm-tdep.c: Fix indentation. * arm-tdep.h: Fix indentation. * arm-wince-tdep.c: Fix indentation. * auto-load.c: Fix indentation. * auxv.c: Fix indentation. * avr-tdep.c: Fix indentation. * ax-gdb.c: Fix indentation. * ax-general.c: Fix indentation. * bfin-linux-tdep.c: Fix indentation. * block.c: Fix indentation. * block.h: Fix indentation. * blockframe.c: Fix indentation. * bpf-tdep.c: Fix indentation. * break-catch-sig.c: Fix indentation. * break-catch-syscall.c: Fix indentation. * break-catch-throw.c: Fix indentation. * breakpoint.c: Fix indentation. * breakpoint.h: Fix indentation. * bsd-uthread.c: Fix indentation. * btrace.c: Fix indentation. * build-id.c: Fix indentation. * buildsym-legacy.h: Fix indentation. * buildsym.c: Fix indentation. * c-typeprint.c: Fix indentation. * c-valprint.c: Fix indentation. * c-varobj.c: Fix indentation. * charset.c: Fix indentation. * cli/cli-cmds.c: Fix indentation. * cli/cli-decode.c: Fix indentation. * cli/cli-decode.h: Fix indentation. * cli/cli-script.c: Fix indentation. * cli/cli-setshow.c: Fix indentation. * coff-pe-read.c: Fix indentation. * coffread.c: Fix indentation. * compile/compile-cplus-types.c: Fix indentation. * compile/compile-object-load.c: Fix indentation. * compile/compile-object-run.c: Fix indentation. * completer.c: Fix indentation. * corefile.c: Fix indentation. * corelow.c: Fix indentation. * cp-abi.h: Fix indentation. * cp-namespace.c: Fix indentation. * cp-support.c: Fix indentation. * cp-valprint.c: Fix indentation. * cris-linux-tdep.c: Fix indentation. * cris-tdep.c: Fix indentation. * darwin-nat-info.c: Fix indentation. * darwin-nat.c: Fix indentation. * darwin-nat.h: Fix indentation. * dbxread.c: Fix indentation. * dcache.c: Fix indentation. * disasm.c: Fix indentation. * dtrace-probe.c: Fix indentation. * dwarf2/abbrev.c: Fix indentation. * dwarf2/attribute.c: Fix indentation. * dwarf2/expr.c: Fix indentation. * dwarf2/frame.c: Fix indentation. * dwarf2/index-cache.c: Fix indentation. * dwarf2/index-write.c: Fix indentation. * dwarf2/line-header.c: Fix indentation. * dwarf2/loc.c: Fix indentation. * dwarf2/macro.c: Fix indentation. * dwarf2/read.c: Fix indentation. * dwarf2/read.h: Fix indentation. * elfread.c: Fix indentation. * eval.c: Fix indentation. * event-top.c: Fix indentation. * exec.c: Fix indentation. * exec.h: Fix indentation. * expprint.c: Fix indentation. * f-lang.c: Fix indentation. * f-typeprint.c: Fix indentation. * f-valprint.c: Fix indentation. * fbsd-nat.c: Fix indentation. * fbsd-tdep.c: Fix indentation. * findvar.c: Fix indentation. * fork-child.c: Fix indentation. * frame-unwind.c: Fix indentation. * frame-unwind.h: Fix indentation. * frame.c: Fix indentation. * frv-linux-tdep.c: Fix indentation. * frv-tdep.c: Fix indentation. * frv-tdep.h: Fix indentation. * ft32-tdep.c: Fix indentation. * gcore.c: Fix indentation. * gdb_bfd.c: Fix indentation. * gdbarch.sh: Fix indentation. * gdbarch.c: Re-generate * gdbarch.h: Re-generate. * gdbcore.h: Fix indentation. * gdbthread.h: Fix indentation. * gdbtypes.c: Fix indentation. * gdbtypes.h: Fix indentation. * glibc-tdep.c: Fix indentation. * gnu-nat.c: Fix indentation. * gnu-nat.h: Fix indentation. * gnu-v2-abi.c: Fix indentation. * gnu-v3-abi.c: Fix indentation. * go32-nat.c: Fix indentation. * guile/guile-internal.h: Fix indentation. * guile/scm-cmd.c: Fix indentation. * guile/scm-frame.c: Fix indentation. * guile/scm-iterator.c: Fix indentation. * guile/scm-math.c: Fix indentation. * guile/scm-ports.c: Fix indentation. * guile/scm-pretty-print.c: Fix indentation. * guile/scm-value.c: Fix indentation. * h8300-tdep.c: Fix indentation. * hppa-linux-nat.c: Fix indentation. * hppa-linux-tdep.c: Fix indentation. * hppa-nbsd-nat.c: Fix indentation. * hppa-nbsd-tdep.c: Fix indentation. * hppa-obsd-nat.c: Fix indentation. * hppa-tdep.c: Fix indentation. * hppa-tdep.h: Fix indentation. * i386-bsd-nat.c: Fix indentation. * i386-darwin-nat.c: Fix indentation. * i386-darwin-tdep.c: Fix indentation. * i386-dicos-tdep.c: Fix indentation. * i386-gnu-nat.c: Fix indentation. * i386-linux-nat.c: Fix indentation. * i386-linux-tdep.c: Fix indentation. * i386-nto-tdep.c: Fix indentation. * i386-obsd-tdep.c: Fix indentation. * i386-sol2-nat.c: Fix indentation. * i386-tdep.c: Fix indentation. * i386-tdep.h: Fix indentation. * i386-windows-tdep.c: Fix indentation. * i387-tdep.c: Fix indentation. * i387-tdep.h: Fix indentation. * ia64-libunwind-tdep.c: Fix indentation. * ia64-libunwind-tdep.h: Fix indentation. * ia64-linux-nat.c: Fix indentation. * ia64-linux-tdep.c: Fix indentation. * ia64-tdep.c: Fix indentation. * ia64-tdep.h: Fix indentation. * ia64-vms-tdep.c: Fix indentation. * infcall.c: Fix indentation. * infcmd.c: Fix indentation. * inferior.c: Fix indentation. * infrun.c: Fix indentation. * iq2000-tdep.c: Fix indentation. * language.c: Fix indentation. * linespec.c: Fix indentation. * linux-fork.c: Fix indentation. * linux-nat.c: Fix indentation. * linux-tdep.c: Fix indentation. * linux-thread-db.c: Fix indentation. * lm32-tdep.c: Fix indentation. * m2-lang.c: Fix indentation. * m2-typeprint.c: Fix indentation. * m2-valprint.c: Fix indentation. * m32c-tdep.c: Fix indentation. * m32r-linux-tdep.c: Fix indentation. * m32r-tdep.c: Fix indentation. * m68hc11-tdep.c: Fix indentation. * m68k-bsd-nat.c: Fix indentation. * m68k-linux-nat.c: Fix indentation. * m68k-linux-tdep.c: Fix indentation. * m68k-tdep.c: Fix indentation. * machoread.c: Fix indentation. * macrocmd.c: Fix indentation. * macroexp.c: Fix indentation. * macroscope.c: Fix indentation. * macrotab.c: Fix indentation. * macrotab.h: Fix indentation. * main.c: Fix indentation. * mdebugread.c: Fix indentation. * mep-tdep.c: Fix indentation. * mi/mi-cmd-catch.c: Fix indentation. * mi/mi-cmd-disas.c: Fix indentation. * mi/mi-cmd-env.c: Fix indentation. * mi/mi-cmd-stack.c: Fix indentation. * mi/mi-cmd-var.c: Fix indentation. * mi/mi-cmds.c: Fix indentation. * mi/mi-main.c: Fix indentation. * mi/mi-parse.c: Fix indentation. * microblaze-tdep.c: Fix indentation. * minidebug.c: Fix indentation. * minsyms.c: Fix indentation. * mips-linux-nat.c: Fix indentation. * mips-linux-tdep.c: Fix indentation. * mips-nbsd-tdep.c: Fix indentation. * mips-tdep.c: Fix indentation. * mn10300-linux-tdep.c: Fix indentation. * mn10300-tdep.c: Fix indentation. * moxie-tdep.c: Fix indentation. * msp430-tdep.c: Fix indentation. * namespace.h: Fix indentation. * nat/fork-inferior.c: Fix indentation. * nat/gdb_ptrace.h: Fix indentation. * nat/linux-namespaces.c: Fix indentation. * nat/linux-osdata.c: Fix indentation. * nat/netbsd-nat.c: Fix indentation. * nat/x86-dregs.c: Fix indentation. * nbsd-nat.c: Fix indentation. * nbsd-tdep.c: Fix indentation. * nios2-linux-tdep.c: Fix indentation. * nios2-tdep.c: Fix indentation. * nto-procfs.c: Fix indentation. * nto-tdep.c: Fix indentation. * objfiles.c: Fix indentation. * objfiles.h: Fix indentation. * opencl-lang.c: Fix indentation. * or1k-tdep.c: Fix indentation. * osabi.c: Fix indentation. * osabi.h: Fix indentation. * osdata.c: Fix indentation. * p-lang.c: Fix indentation. * p-typeprint.c: Fix indentation. * p-valprint.c: Fix indentation. * parse.c: Fix indentation. * ppc-linux-nat.c: Fix indentation. * ppc-linux-tdep.c: Fix indentation. * ppc-nbsd-nat.c: Fix indentation. * ppc-nbsd-tdep.c: Fix indentation. * ppc-obsd-nat.c: Fix indentation. * ppc-ravenscar-thread.c: Fix indentation. * ppc-sysv-tdep.c: Fix indentation. * ppc64-tdep.c: Fix indentation. * printcmd.c: Fix indentation. * proc-api.c: Fix indentation. * producer.c: Fix indentation. * producer.h: Fix indentation. * prologue-value.c: Fix indentation. * prologue-value.h: Fix indentation. * psymtab.c: Fix indentation. * python/py-arch.c: Fix indentation. * python/py-bpevent.c: Fix indentation. * python/py-event.c: Fix indentation. * python/py-event.h: Fix indentation. * python/py-finishbreakpoint.c: Fix indentation. * python/py-frame.c: Fix indentation. * python/py-framefilter.c: Fix indentation. * python/py-inferior.c: Fix indentation. * python/py-infthread.c: Fix indentation. * python/py-objfile.c: Fix indentation. * python/py-prettyprint.c: Fix indentation. * python/py-registers.c: Fix indentation. * python/py-signalevent.c: Fix indentation. * python/py-stopevent.c: Fix indentation. * python/py-stopevent.h: Fix indentation. * python/py-threadevent.c: Fix indentation. * python/py-tui.c: Fix indentation. * python/py-unwind.c: Fix indentation. * python/py-value.c: Fix indentation. * python/py-xmethods.c: Fix indentation. * python/python-internal.h: Fix indentation. * python/python.c: Fix indentation. * ravenscar-thread.c: Fix indentation. * record-btrace.c: Fix indentation. * record-full.c: Fix indentation. * record.c: Fix indentation. * reggroups.c: Fix indentation. * regset.h: Fix indentation. * remote-fileio.c: Fix indentation. * remote.c: Fix indentation. * reverse.c: Fix indentation. * riscv-linux-tdep.c: Fix indentation. * riscv-ravenscar-thread.c: Fix indentation. * riscv-tdep.c: Fix indentation. * rl78-tdep.c: Fix indentation. * rs6000-aix-tdep.c: Fix indentation. * rs6000-lynx178-tdep.c: Fix indentation. * rs6000-nat.c: Fix indentation. * rs6000-tdep.c: Fix indentation. * rust-lang.c: Fix indentation. * rx-tdep.c: Fix indentation. * s12z-tdep.c: Fix indentation. * s390-linux-tdep.c: Fix indentation. * score-tdep.c: Fix indentation. * ser-base.c: Fix indentation. * ser-mingw.c: Fix indentation. * ser-uds.c: Fix indentation. * ser-unix.c: Fix indentation. * serial.c: Fix indentation. * sh-linux-tdep.c: Fix indentation. * sh-nbsd-tdep.c: Fix indentation. * sh-tdep.c: Fix indentation. * skip.c: Fix indentation. * sol-thread.c: Fix indentation. * solib-aix.c: Fix indentation. * solib-darwin.c: Fix indentation. * solib-frv.c: Fix indentation. * solib-svr4.c: Fix indentation. * solib.c: Fix indentation. * source.c: Fix indentation. * sparc-linux-tdep.c: Fix indentation. * sparc-nbsd-tdep.c: Fix indentation. * sparc-obsd-tdep.c: Fix indentation. * sparc-ravenscar-thread.c: Fix indentation. * sparc-tdep.c: Fix indentation. * sparc64-linux-tdep.c: Fix indentation. * sparc64-nbsd-tdep.c: Fix indentation. * sparc64-obsd-tdep.c: Fix indentation. * sparc64-tdep.c: Fix indentation. * stabsread.c: Fix indentation. * stack.c: Fix indentation. * stap-probe.c: Fix indentation. * stubs/ia64vms-stub.c: Fix indentation. * stubs/m32r-stub.c: Fix indentation. * stubs/m68k-stub.c: Fix indentation. * stubs/sh-stub.c: Fix indentation. * stubs/sparc-stub.c: Fix indentation. * symfile-mem.c: Fix indentation. * symfile.c: Fix indentation. * symfile.h: Fix indentation. * symmisc.c: Fix indentation. * symtab.c: Fix indentation. * symtab.h: Fix indentation. * target-float.c: Fix indentation. * target.c: Fix indentation. * target.h: Fix indentation. * tic6x-tdep.c: Fix indentation. * tilegx-linux-tdep.c: Fix indentation. * tilegx-tdep.c: Fix indentation. * top.c: Fix indentation. * tracefile-tfile.c: Fix indentation. * tracepoint.c: Fix indentation. * tui/tui-disasm.c: Fix indentation. * tui/tui-io.c: Fix indentation. * tui/tui-regs.c: Fix indentation. * tui/tui-stack.c: Fix indentation. * tui/tui-win.c: Fix indentation. * tui/tui-winsource.c: Fix indentation. * tui/tui.c: Fix indentation. * typeprint.c: Fix indentation. * ui-out.h: Fix indentation. * unittests/copy_bitwise-selftests.c: Fix indentation. * unittests/memory-map-selftests.c: Fix indentation. * utils.c: Fix indentation. * v850-tdep.c: Fix indentation. * valarith.c: Fix indentation. * valops.c: Fix indentation. * valprint.c: Fix indentation. * valprint.h: Fix indentation. * value.c: Fix indentation. * value.h: Fix indentation. * varobj.c: Fix indentation. * vax-tdep.c: Fix indentation. * windows-nat.c: Fix indentation. * windows-tdep.c: Fix indentation. * xcoffread.c: Fix indentation. * xml-syscall.c: Fix indentation. * xml-tdesc.c: Fix indentation. * xstormy16-tdep.c: Fix indentation. * xtensa-config.c: Fix indentation. * xtensa-linux-nat.c: Fix indentation. * xtensa-linux-tdep.c: Fix indentation. * xtensa-tdep.c: Fix indentation. gdbserver/ChangeLog: * ax.cc: Fix indentation. * dll.cc: Fix indentation. * inferiors.h: Fix indentation. * linux-low.cc: Fix indentation. * linux-nios2-low.cc: Fix indentation. * linux-ppc-ipa.cc: Fix indentation. * linux-ppc-low.cc: Fix indentation. * linux-x86-low.cc: Fix indentation. * linux-xtensa-low.cc: Fix indentation. * regcache.cc: Fix indentation. * server.cc: Fix indentation. * tracepoint.cc: Fix indentation. gdbsupport/ChangeLog: * common-exceptions.h: Fix indentation. * event-loop.cc: Fix indentation. * fileio.cc: Fix indentation. * filestuff.cc: Fix indentation. * gdb-dlfcn.cc: Fix indentation. * gdb_string_view.h: Fix indentation. * job-control.cc: Fix indentation. * signals.cc: Fix indentation. Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
2020-10-26gdb::handle_eintr, remove need to specify return typePedro Alves1-9/+2
This eliminates the need to specify the return type when using handle_eintr. We let the compiler deduce it for us. Also, use lowercase for function parameter names. Uppercase should only be used on template parameters. gdb/ChangeLog: * nat/linux-waitpid.c: Include "gdbsupport/eintr.h". (my_waitpid): Use gdb::handle_eintr. gdbserver/ChangeLog: * netbsd-low.cc (netbsd_waitpid, netbsd_process_target::kill) (netbsd_qxfer_libraries_svr4): Use gdb::handle_eintr without explicit type. gdbsupport/ChangeLog: * eintr.h (handle_eintr): Replace Ret template parameter with ErrorValType. Use it as type of the failure value. Deduce the function's return type using decltype. Use lowercase for function parameter names.
2020-10-07Correct logical error in NetBSD's read_memory and write_memoryKamil Rytarowski1-2/+2
In case of repeated ptrace PT_IO call and returning the value of transferred bytes equal to 0, do not return without setting xfered_len. gdb/ChangeLog: * nat/netbsd-nat.c (write_memory, read_memory): Update.
2020-10-07Add common write_memory and read_memory NetBSD routinesKamil Rytarowski2-0/+102
Instead of sharing the native-only code with all BSDs with slightly different semantics of the kernels, share the NetBSD-only behavior beteen the NetBSD native and gdbserver setup. NetBSD does not differentiate the address space I and D in the operations (contrary to OpenBSD). NetBSD handles EACCES that integrates with NetBSD specific PaX MPROTECT error handling. Add a verbose message in the native client that an operation could be cancelled due to PaX MPROTECT setup. gdb/ChangeLog: * nat/netbsd-nat.c (write_memory, read_memory): Add. * nat/netbsd-nat.h (write_memory, read_memory): Likewise. * nbsd-nat.c (nbsd_nat_target::xfer_partial): Update. gdbserver/ChangeLog: * netbsd-low.cc (netbsd_process_target::read_memory) (netbsd_process_target::write_memory): Update.
2020-09-24Handle 64bit breakpoints of WOW64 processes as SIGINTHannes Domani2-0/+17
When a WOW64 process triggers a breakpoint exception in 64bit code (which happens when a 64bit gdb calls DebugBreakProcess for a 32bit target), gdb ignores the breakpoint (because Wow64GetThreadContext can only report the pc of 32bit code, and there is not int3 at this location). But if these 64bit breakpoint exceptions are handled as SIGINT, gdb doesn't check for int3, and always stops the target. gdb/ChangeLog: 2020-09-23 Hannes Domani <ssbssa@yahoo.de> * nat/windows-nat.c (handle_exception): Handle 64bit breakpoints in WOW64 processes as SIGINT. * nat/windows-nat.h: Make wow64_process a shared variable. * windows-nat.c: Remove static wow64_process variable. gdbserver/ChangeLog: 2020-09-23 Hannes Domani <ssbssa@yahoo.de> * win32-low.cc: Remove local wow64_process variable. * win32-low.h: Remove local wow64_process variable.
2020-09-10Avoid double free in startup_inferiorKamil Rytarowski1-1/+4
Do not free the last execd pathname as it will be used in prepare_resume_reply(), after attaching a client side. gdb/ChangeLog: * fork-inferior.c (startup_inferior): Avoid double free.
2020-09-10Add a common utility function to read and write siginfo_t in inferiorKamil Rytarowski2-0/+39
gdb/ChangeLog: * netbsd-nat.h (netbsd_nat::qxfer_siginfo): Add. * netbsd-nat.c (netbsd_nat::qxfer_siginfo): Likewise.
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