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Resent-From: Janneke Nieuwenhuizen Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Sun, 24 Nov 2024 07:57:32 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 74290 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: 74290@debbugs.gnu.org Received: via spool by 74290-submit@debbugs.gnu.org id=B74290.173243504418337 (code B ref 74290); Sun, 24 Nov 2024 07:57:32 +0000 Received: (at 74290) by debbugs.gnu.org; 24 Nov 2024 07:57:24 +0000 Received: from localhost ([127.0.0.1]:60889 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tF7Uf-0004lH-M0 for submit@debbugs.gnu.org; Sun, 24 Nov 2024 02:57:24 -0500 Received: from eggs.gnu.org ([209.51.188.92]:33700) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tF7UB-0004cS-MD for 74290@debbugs.gnu.org; Sun, 24 Nov 2024 02:56:54 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tF7U6-0002I6-7E; Sun, 24 Nov 2024 02:56:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:References:In-Reply-To:Date:Subject:To: From; bh=csLNrX7KglYSn+zXoqxh8/j8zPva+/LTtAkKnxbU/3s=; b=hmPSxQ9Qx41mL3c5CxJb zCfoyUes3vei+EJR9UZwWdhL1NJqL6heDcVJYYZPqbtvqfLNRuEwedNQGL7gxBDZDwTXGmfxph70d fnp7vy4lSaXmtDOtqlTM4q4tW9eQVOpSZg1yd+jhk3F4zO+QOAiXSX0Lc2q7+Dl5udzkbzKVrqsFG qKbM9SJe2eMnaGU0gcPvy896YWoeziI5Dv4m7j54nbM5vqyxyfXhioKvJahXilIVmGH1HRpC4dEYz 1uV8leMyciojftTEBKrDAdLvGYGjKnygz6x+iTxbXv6rjzg8wNHVAGrj6loKUbobOzeiVV4UaT6P7 K2ArhSOv8+zTCg==; From: Janneke Nieuwenhuizen Date: Sun, 24 Nov 2024 08:55:11 +0100 Message-ID: <332ac99487986c19265582f445e03f48968b2265.1732434271.git.janneke@gnu.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Spam-Score: -1.13 X-Spam-Score: -1.13 X-Migadu-Queue-Id: 1A4E54781 X-Migadu-Scanner: mx12.migadu.com X-TUID: kdg9yP9fomSR * gnu/packages/patches/gdb-hurd64.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it. * gnu/packages/gdb.scm (gdb-15): Use it in new variable. (gdb-minmal-15): New variable. (gdb/pinned): When building for the 64bit Hurd, set #:configure-flags to "--enable-targets=i586-pc-gnu,x86_64-pc-gnu". Change-Id: I52d28092be6c415b8668bb5a77d41c87df841351 --- gnu/local.mk | 1 + gnu/packages/gdb.scm | 22 + gnu/packages/patches/gdb-hurd64.patch | 923 ++++++++++++++++++++++++++ 3 files changed, 946 insertions(+) create mode 100644 gnu/packages/patches/gdb-hurd64.patch diff --git a/gnu/local.mk b/gnu/local.mk index 3595c68800..08314ade22 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -1372,6 +1372,7 @@ dist_patch_DATA = \ %D%/packages/patches/gcolor3-update-libportal-usage.patch \ %D%/packages/patches/gd-fix-tests-on-i686.patch \ %D%/packages/patches/gd-brect-bounds.patch \ + %D%/packages/patches/gdb-hurd64.patch \ %D%/packages/patches/gdm-default-session.patch \ %D%/packages/patches/gdm-elogind-support.patch \ %D%/packages/patches/gdm-remove-hardcoded-xwayland-path.patch \ diff --git a/gnu/packages/gdb.scm b/gnu/packages/gdb.scm index bf46716047..af5ebde3f6 100644 --- a/gnu/packages/gdb.scm +++ b/gnu/packages/gdb.scm @@ -67,6 +67,9 @@ (define-public gdb/pinned #:out-of-source? #t #:modules `((srfi srfi-1) ,@%default-gnu-modules) + #:configure-flags (if (target-hurd64?) + #~'("--enable-targets=i586-pc-gnu,x86_64-pc-gnu") + #~'()) #:phases #~(modify-phases %standard-phases (add-after 'unpack 'patch-paths (lambda* (#:key inputs #:allow-other-keys) @@ -160,6 +163,19 @@ (define-public gdb-14 "0wkprsjyyh204fdjlkaz20k847l88i9y8m9zqsv15vcd3l3dhk9d")))) (properties '()))) +(define-public gdb-15 + (package + (inherit gdb-14) + (version "15.2") + (source (origin + (method url-fetch) + (uri (string-append "mirror://gnu/gdb/gdb-" + version ".tar.xz")) + (patches (search-patches "gdb-hurd64.patch")) + (sha256 + (base32 + "0k9i8mizg4hby020k53kqmc835pajh9c8d5klv5s1ddm6p6hqdc3")))))) + (define-public gdb ;; The "default" version. gdb-14) @@ -184,6 +200,12 @@ (define-public gdb-minimal (inputs (fold alist-delete (package-inputs gdb) '("libxml2" "ncurses" "python-wrapper" "source-highlight"))))) +(define-public gdb-minimal-15 + (package/inherit gdb-15 + (name "gdb-minimal") + (inputs (fold alist-delete (package-inputs gdb-15) + '("libxml2" "ncurses" "python-wrapper" "source-highlight"))))) + (define-public avr-gdb (package/inherit gdb-14 (name "avr-gdb") diff --git a/gnu/packages/patches/gdb-hurd64.patch b/gnu/packages/patches/gdb-hurd64.patch new file mode 100644 index 0000000000..50e44b3684 --- /dev/null +++ b/gnu/packages/patches/gdb-hurd64.patch @@ -0,0 +1,923 @@ +Upstream-status: Taken from bug-hurd + + . + +and gdb-patches + + + +mailing lists. + +From 6131a7a8951bc255d6c013de126c46b620434d2f Mon Sep 17 00:00:00 2001 +From: Flavio Cruz +Date: Wed, 3 Jul 2024 22:45:33 +0100 +Subject: [PATCH 1/2] Port GDB to Hurd x86_64. + +This port extends the existing i686 port to support x86_64 by trying to +reuse existing code whenever it makes sense. + +* gdb/amd64-gnu-tdep.c: Adds logic for handling signal frames and + position of amd64 registers in the different Hurd structs. + The signal code is very similar to i686, except the trampoline code + is adapted. +* gdb/config/i386/nm-i386gnu.h: renamed to gdb/config/i386/nm-x86-gnu.h + and adapt it for x86_64. +* gdb/config/i386/i386gnu.mn: renamed to gdb/config/i386/nm-x86-gnu.mn + and reuse it for x86_64. +* gdb/configure.host: recognize gnu64 as a host. +* gdb/configure.nat: recognize gnu64 host and update existing i386gnu to + reuse the new shared files. +* gdb/configure.tgt: recognize x86_64-*-gnu* triplet and use + amd64-gnu-tdep.c. +* gdb/i386-gnu-tdep.c: added i386_gnu_thread_state_reg_offset that is + copied from i386-gnu-nat.c. This makes it similar to amd64. +* gdb/i386-gnu-nat.c: rename it to x86-gnu-nat.c since we reuse this for + i386 and amd64. Updated REG_ADDR to use one of the structures. Added + VALID_REGISTER to make sure it's a register we can provide at this time + (not all of them are available in amd64). FLAGS_REGISTER is either rfl + or efl depending on the arch. Renamed functions and class from i386 to x86 + whenever they can be reused. + +Tested on Hurd x86_64 and i686. +--- + gdb/Makefile.in | 4 +- + gdb/amd64-gnu-tdep.c | 231 ++++++++++++++++++ + .../i386/{nm-i386gnu.h => nm-x86-gnu.h} | 7 + + gdb/config/i386/{i386gnu.mn => x86-gnu.mn} | 0 + gdb/configure.host | 1 + + gdb/configure.nat | 27 +- + gdb/configure.tgt | 6 +- + gdb/i386-gnu-tdep.c | 13 +- + gdb/{i386-gnu-nat.c => x86-gnu-nat.c} | 171 +++++++++---- + 9 files changed, 403 insertions(+), 57 deletions(-) + create mode 100644 gdb/amd64-gnu-tdep.c + rename gdb/config/i386/{nm-i386gnu.h => nm-x86-gnu.h} (83%) + rename gdb/config/i386/{i386gnu.mn => x86-gnu.mn} (100%) + rename gdb/{i386-gnu-nat.c => x86-gnu-nat.c} (68%) + +diff --git a/gdb/Makefile.in b/gdb/Makefile.in +index 84bc54b303e..67a15e2cc68 100644 +--- a/gdb/Makefile.in ++++ b/gdb/Makefile.in +@@ -737,6 +737,7 @@ ALL_64_TARGET_OBS = \ + amd64-darwin-tdep.o \ + amd64-dicos-tdep.o \ + amd64-fbsd-tdep.o \ ++ amd64-gnu-tdep.o \ + amd64-linux-tdep.o \ + amd64-netbsd-tdep.o \ + amd64-obsd-tdep.o \ +@@ -1688,6 +1689,7 @@ ALLDEPFILES = \ + amd64-dicos-tdep.c \ + amd64-fbsd-nat.c \ + amd64-fbsd-tdep.c \ ++ amd64-gnu-tdep.c \ + amd64-linux-nat.c \ + amd64-linux-tdep.c \ + amd64-nat.c \ +@@ -1743,7 +1745,6 @@ ALLDEPFILES = \ + i386-dicos-tdep.c \ + i386-fbsd-nat.c \ + i386-fbsd-tdep.c \ +- i386-gnu-nat.c \ + i386-gnu-tdep.c \ + i386-linux-nat.c \ + i386-linux-tdep.c \ +@@ -1872,6 +1873,7 @@ ALLDEPFILES = \ + vax-tdep.c \ + windows-nat.c \ + windows-tdep.c \ ++ x86-gnu-nat.c \ + x86-nat.c \ + x86-tdep.c \ + xcoffread.c \ +diff --git a/gdb/amd64-gnu-tdep.c b/gdb/amd64-gnu-tdep.c +new file mode 100644 +index 00000000000..435095e3359 +--- /dev/null ++++ b/gdb/amd64-gnu-tdep.c +@@ -0,0 +1,231 @@ ++/* Target-dependent code for the GNU Hurd. ++ Copyright (C) 2024 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see . */ ++ ++#include "defs.h" ++#include "extract-store-integer.h" ++#include "gdbcore.h" ++#include "osabi.h" ++#include "solib-svr4.h" ++ ++#include "amd64-tdep.h" ++#include "glibc-tdep.h" ++ ++/* Recognizing signal handler frames. */ ++ ++/* When the GNU/Hurd libc calls a signal handler, the return address points ++ inside the trampoline assembly snippet. ++ ++ If the trampoline function name can not be identified, we resort to reading ++ memory from the process in order to identify it. */ ++ ++static const gdb_byte gnu_sigtramp_code[] = ++{ ++/* rpc_wait_trampoline: */ ++ 0x48, 0xc7, 0xc0, 0xe7, 0xff, 0xff, 0xff, /* mov $-25,%rax */ ++ 0x0f, 0x05, /* syscall */ ++ 0x49, 0x89, 0x04, 0x24, /* mov %rax,(%r12) */ ++ 0x48, 0x89, 0xdc, /* mov %rbx,%rsp */ ++ ++/* trampoline: */ ++ 0x5f, /* pop %rdi */ ++ 0x5e, /* pop %rsi */ ++ 0x5a, /* pop %rdx */ ++ 0x48, 0x83, 0xc4, 0x08, /* add $0x8,%rsp */ ++ 0x41, 0xff, 0xd5, /* call *%r13 */ ++ ++/* RA HERE */ ++ 0x48, 0x8b, 0x7c, 0x24, 0x10, /* mov 0x10(%rsp),%rdi */ ++ 0xc3, /* ret */ ++ ++/* firewall: */ ++ 0xf4, /* hlt */ ++}; ++ ++#define GNU_SIGTRAMP_LEN (sizeof gnu_sigtramp_code) ++#define GNU_SIGTRAMP_TAIL 7 /* length of tail after RA */ ++ ++/* If THIS_FRAME is a sigtramp routine, return the address of the ++ start of the routine. Otherwise, return 0. */ ++ ++static CORE_ADDR ++amd64_gnu_sigtramp_start (frame_info_ptr this_frame) ++{ ++ CORE_ADDR pc = get_frame_pc (this_frame); ++ gdb_byte buf[GNU_SIGTRAMP_LEN]; ++ ++ if (!safe_frame_unwind_memory (this_frame, ++ pc + GNU_SIGTRAMP_TAIL - GNU_SIGTRAMP_LEN, ++ buf)) ++ return 0; ++ ++ if (memcmp (buf, gnu_sigtramp_code, GNU_SIGTRAMP_LEN) != 0) ++ return 0; ++ ++ return pc; ++} ++ ++/* Return whether THIS_FRAME corresponds to a Hurd sigtramp routine. */ ++ ++static int ++amd64_gnu_sigtramp_p (const frame_info_ptr &this_frame) ++{ ++ CORE_ADDR pc = get_frame_pc (this_frame); ++ const char *name; ++ ++ find_pc_partial_function (pc, &name, NULL, NULL); ++ ++ /* If we have a NAME, we can check for the trampoline function */ ++ if (name != NULL && strcmp (name, "trampoline") == 0) ++ return 1; ++ ++ return amd64_gnu_sigtramp_start (this_frame) != 0; ++} ++ ++/* Offset to sc_i386_thread_state in sigcontext, from . */ ++#define AMD64_GNU_SIGCONTEXT_THREAD_STATE_OFFSET 32 ++ ++/* Assuming THIS_FRAME is a Hurd sigtramp routine, return the ++ address of the associated sigcontext structure. */ ++ ++static CORE_ADDR ++amd64_gnu_sigcontext_addr (const frame_info_ptr &this_frame) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (this_frame); ++ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); ++ CORE_ADDR pc; ++ CORE_ADDR sp; ++ gdb_byte buf[8]; ++ ++ get_frame_register (this_frame, AMD64_RSP_REGNUM, buf); ++ sp = extract_unsigned_integer (buf, 8, byte_order); ++ ++ pc = amd64_gnu_sigtramp_start (this_frame); ++ if (pc) ++ { ++ CORE_ADDR sigcontext_addr; ++ ++ /* The sigcontext structure address is passed as the third argument ++ * of the signal handler but %RDX is not saved across calls. Luckily, ++ * the structured is saved underneath the &__sigreturn and a dummy word ++ * to fill the slot for the address for __sigreturn to return to. ++ */ ++ read_memory (sp + 16, buf, 8); ++ sigcontext_addr = extract_unsigned_integer (buf, 8, byte_order); ++ return sigcontext_addr + AMD64_GNU_SIGCONTEXT_THREAD_STATE_OFFSET; ++ } ++ ++ error (_("Couldn't recognize signal trampoline.")); ++ return 0; ++} ++ ++/* Mapping between the general-purpose registers in `struct ++ sigcontext' format (starting at sc_i386_thread_state) ++ and GDB's register cache layout. */ ++ ++/* From . */ ++static int amd64_gnu_sc_reg_offset[] = ++{ ++ 15 * 8, /* %rax */ ++ 12 * 8, /* %rbx */ ++ 14 * 8, /* %rcx */ ++ 13 * 8, /* %rdx */ ++ 10 * 8, /* %rsi */ ++ 9 * 8, /* %rdi */ ++ 10 * 8, /* %rbp */ ++ 11 * 8, /* %rsp */ ++ 0 * 8, /* %r8 ... */ ++ 8 * 8, ++ 7 * 8, ++ 6 * 8, ++ 3 * 8, ++ 2 * 8, ++ 1 * 8, ++ 0 * 8, /* ... %r15 */ ++ 16 * 8, /* %rip */ ++ 18 * 8, /* %eflags */ ++ 17 * 8, /* %cs */ ++}; ++ ++/* From . */ ++static int amd64_gnu_gregset_reg_offset[] = ++{ ++ 10 * 8, /* %rax */ ++ 5 * 8, /* %rbx */ ++ 11 * 8, /* %rcx */ ++ 12 * 8, /* %rdx */ ++ 13 * 8, /* %rsi */ ++ 14 * 8, /* %rdi */ ++ 4 * 8, /* %rbp */ ++ 19 * 8, /* %rsp */ ++ 9 * 8, /* %r8 ... */ ++ 8 * 8, ++ 7 * 8, ++ 6 * 8, ++ 3 * 8, ++ 2 * 8, ++ 1 * 8, ++ 0 * 8, /* ... %r15 */ ++ 16 * 8, /* %rip */ ++ 18 * 8, /* %eflags */ ++ 17 * 8, /* %cs */ ++ -1, /* %ss */ ++ -1, /* %ds */ ++ -1, /* %es */ ++ -1, /* %fs */ ++ -1, /* %gs */ ++}; ++ ++static void ++amd64_gnu_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) ++{ ++ i386_gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ++ ++ amd64_init_abi (info, gdbarch, ++ amd64_target_description (X86_XSTATE_SSE_MASK, true)); ++ ++ /* Enable TLS support. */ ++ set_gdbarch_fetch_tls_load_module_address (gdbarch, ++ svr4_fetch_objfile_link_map); ++ ++ /* Hurd uses SVR4-style shared libraries. */ ++ set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); ++ ++ /* Hurd uses the dynamic linker included in the GNU C Library. */ ++ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver); ++ ++ tdep->gregset_reg_offset = amd64_gnu_gregset_reg_offset; ++ tdep->gregset_num_regs = ARRAY_SIZE (amd64_gnu_gregset_reg_offset); ++ tdep->sizeof_gregset = 21 * 8; /* sizeof (struct i386_thread_state); */ ++ ++ tdep->sigtramp_p = amd64_gnu_sigtramp_p; ++ tdep->sigcontext_addr = amd64_gnu_sigcontext_addr; ++ tdep->sc_reg_offset = amd64_gnu_sc_reg_offset; ++ tdep->sc_num_regs = ARRAY_SIZE (amd64_gnu_sc_reg_offset); ++ ++ /* Hurd uses SVR4-style shared libraries. */ ++ set_solib_svr4_fetch_link_map_offsets ++ (gdbarch, svr4_lp64_fetch_link_map_offsets); ++} ++ ++void _initialize_amd64_gnu_tdep (); ++void ++_initialize_amd64_gnu_tdep () ++{ ++ gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, ++ GDB_OSABI_HURD, amd64_gnu_init_abi); ++} +diff --git a/gdb/config/i386/nm-i386gnu.h b/gdb/config/i386/nm-x86-gnu.h +similarity index 83% +rename from gdb/config/i386/nm-i386gnu.h +rename to gdb/config/i386/nm-x86-gnu.h +index d2d5de83948..ed4d1729227 100644 +--- a/gdb/config/i386/nm-i386gnu.h ++++ b/gdb/config/i386/nm-x86-gnu.h +@@ -22,9 +22,16 @@ + /* Thread flavors used in re-setting the T bit. */ + #define THREAD_STATE_FLAVOR i386_REGS_SEGS_STATE + #define THREAD_STATE_SIZE i386_THREAD_STATE_COUNT ++#ifdef __x86_64__ ++#define THREAD_STATE_SET_TRACED(state) \ ++ ((struct i386_thread_state *) (state))->rfl |= 0x100 ++#define THREAD_STATE_CLEAR_TRACED(state) \ ++ ((((struct i386_thread_state *) (state))->rfl &= ~0x100), 1) ++#else + #define THREAD_STATE_SET_TRACED(state) \ + ((struct i386_thread_state *) (state))->efl |= 0x100 + #define THREAD_STATE_CLEAR_TRACED(state) \ + ((((struct i386_thread_state *) (state))->efl &= ~0x100), 1) ++#endif /* __x86_64__ */ + + #endif /* CONFIG_I386_NM_I386GNU_H */ +diff --git a/gdb/config/i386/i386gnu.mn b/gdb/config/i386/x86-gnu.mn +similarity index 100% +rename from gdb/config/i386/i386gnu.mn +rename to gdb/config/i386/x86-gnu.mn +diff --git a/gdb/configure.host b/gdb/configure.host +index da71675b201..999af8e59ae 100644 +--- a/gdb/configure.host ++++ b/gdb/configure.host +@@ -184,6 +184,7 @@ x86_64-*-mingw*) gdb_host=mingw64 + gdb_host_obs=mingw-hdep.o + ;; + x86_64-*-cygwin*) gdb_host=cygwin64 ;; ++x86_64-*-gnu*) gdb_host=gnu64 ;; + m32r*-*-linux*) gdb_host=linux ;; + + xtensa*-*-linux*) gdb_host=linux ;; +diff --git a/gdb/configure.nat b/gdb/configure.nat +index 8b98511cef7..00402f888a9 100644 +--- a/gdb/configure.nat ++++ b/gdb/configure.nat +@@ -211,23 +211,44 @@ case ${gdb_host} in + ;; + esac + ;; ++ gnu64) ++ case ${gdb_host_cpu} in ++ i386) ++ # Host: x86_64 running the GNU Hurd ++ NATDEPFILES='x86-gnu-nat.o gnu-nat.o \ ++ x86-nat.o nat/x86-dregs.o \ ++ amd64-nat.o fork-child.o \ ++ nat/fork-inferior.o \ ++ notify_S.o process_reply_S.o msg_reply_S.o \ ++ msg_U.o exc_request_U.o exc_request_S.o' ++ HAVE_NATIVE_GCORE_HOST=1 ++ ++ NAT_FILE='nm-x86-gnu.h' ++ MH_CFLAGS='-D_GNU_SOURCE' ++ ++ XM_CLIBS='-lshouldbeinlibc' ++ ++ nat_makefile_frag="${srcdir}/config/${gdb_host_cpu}/x86-gnu.mn" ++ ;; ++ esac ++ ;; + i386gnu) + case ${gdb_host_cpu} in + i386) + # Host: Intel 386 running the GNU Hurd +- NATDEPFILES='i386-gnu-nat.o gnu-nat.o \ ++ NATDEPFILES='x86-gnu-nat.o gnu-nat.o \ + x86-nat.o nat/x86-dregs.o fork-child.o \ + nat/fork-inferior.o \ + notify_S.o process_reply_S.o msg_reply_S.o \ + msg_U.o exc_request_U.o exc_request_S.o' + HAVE_NATIVE_GCORE_HOST=1 + +- NAT_FILE='nm-i386gnu.h' ++ NAT_FILE='nm-x86-gnu.h' + MH_CFLAGS='-D_GNU_SOURCE' + + XM_CLIBS='-lshouldbeinlibc' + +- nat_makefile_frag="${srcdir}/config/${gdb_host_cpu}/i386gnu.mn" ++ nat_makefile_frag="${srcdir}/config/${gdb_host_cpu}/x86-gnu.mn" + ;; + esac + ;; +diff --git a/gdb/configure.tgt b/gdb/configure.tgt +index 47a674201f9..df9e9917ad1 100644 +--- a/gdb/configure.tgt ++++ b/gdb/configure.tgt +@@ -328,7 +328,7 @@ i[34567]86-*-linux*) + ;; + i[34567]86-*-gnu*) + # Target: Intel 386 running the GNU Hurd +- gdb_target_obs="i386-gnu-tdep.o solib-svr4.o" ++ gdb_target_obs="i386-gnu-tdep.o glibc-tdep.o solib-svr4.o" + ;; + i[34567]86-*-cygwin*) + # Target: Intel 386 running win32 +@@ -744,6 +744,10 @@ x86_64-*-openbsd*) + x86_64-*-rtems*) + gdb_target_obs="${amd64_tobjs} ${i386_tobjs} i386-bsd-tdep.o" + ;; ++x86_64-*-gnu*) ++ # Target: x86_64 running the GNU Hurd ++ gdb_target_obs="amd64-gnu-tdep.o glibc-tdep.o solib-svr4.o" ++ ;; + xtensa*-*-*linux*) + # Target: GNU/Linux Xtensa + gdb_target_obs="xtensa-linux-tdep.o symfile-mem.o linux-tdep.o" +diff --git a/gdb/i386-gnu-tdep.c b/gdb/i386-gnu-tdep.c +index 98e11518a91..5ffc1388ec0 100644 +--- a/gdb/i386-gnu-tdep.c ++++ b/gdb/i386-gnu-tdep.c +@@ -21,6 +21,7 @@ + #include "osabi.h" + #include "solib-svr4.h" + ++#include "glibc-tdep.h" + #include "i386-tdep.h" + + /* Recognizing signal handler frames. */ +@@ -72,8 +73,7 @@ i386_gnu_sigtramp_start (const frame_info_ptr &this_frame) + return pc; + } + +-/* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp +- routine. */ ++/* Return whether THIS_FRAME corresponds to a Hurd sigtramp routine. */ + + static int + i386_gnu_sigtramp_p (const frame_info_ptr &this_frame) +@@ -178,9 +178,18 @@ i386gnu_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) + /* GNU uses ELF. */ + i386_elf_init_abi (info, gdbarch); + ++ /* Hurd uses SVR4-style shared libraries. */ ++ set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); + set_solib_svr4_fetch_link_map_offsets + (gdbarch, svr4_ilp32_fetch_link_map_offsets); + ++ /* Hurd uses the dynamic linker included in the GNU C Library. */ ++ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver); ++ ++ /* Enable TLS support. */ ++ set_gdbarch_fetch_tls_load_module_address (gdbarch, ++ svr4_fetch_objfile_link_map); ++ + tdep->gregset_reg_offset = i386gnu_gregset_reg_offset; + tdep->gregset_num_regs = ARRAY_SIZE (i386gnu_gregset_reg_offset); + tdep->sizeof_gregset = 19 * 4; +diff --git a/gdb/i386-gnu-nat.c b/gdb/x86-gnu-nat.c +similarity index 68% +rename from gdb/i386-gnu-nat.c +rename to gdb/x86-gnu-nat.c +index 52d4a4b7cec..da3b7e923dd 100644 +--- a/gdb/i386-gnu-nat.c ++++ b/gdb/x86-gnu-nat.c +@@ -34,7 +34,13 @@ extern "C" + #include "floatformat.h" + #include "regcache.h" + ++ ++#ifdef __x86_64__ ++#include "amd64-tdep.h" ++#include "amd64-nat.h" ++#else + #include "i386-tdep.h" ++#endif + + #include "inf-child.h" + #include "i387-tdep.h" +@@ -42,21 +48,82 @@ extern "C" + /* Offset to the thread_state_t location where REG is stored. */ + #define REG_OFFSET(reg) offsetof (struct i386_thread_state, reg) + ++#ifdef __x86_64__ ++ + /* At REG_OFFSET[N] is the offset to the thread_state_t location where + the GDB register N is stored. */ +-static int reg_offset[] = ++static int amd64_gnu_thread_state_reg_offset[] = + { +- REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx), +- REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi), +- REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss), +- REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs) ++ REG_OFFSET (rax), /* %rax */ ++ REG_OFFSET (rbx), /* %rbx */ ++ REG_OFFSET (rcx), /* %rcx */ ++ REG_OFFSET (rdx), /* %rdx */ ++ REG_OFFSET (rsi), /* %rsi */ ++ REG_OFFSET (rdi), /* %rdi */ ++ REG_OFFSET (rbp), /* %rbp */ ++ REG_OFFSET (ursp), /* %rsp */ ++ REG_OFFSET (r8), /* %r8 ... */ ++ REG_OFFSET (r9), ++ REG_OFFSET (r10), ++ REG_OFFSET (r11), ++ REG_OFFSET (r12), ++ REG_OFFSET (r13), ++ REG_OFFSET (r14), ++ REG_OFFSET (r15), /* ... %r15 */ ++ REG_OFFSET (rip), /* %rip */ ++ REG_OFFSET (rfl), /* %rflags */ ++ REG_OFFSET (cs) /* %cs */ + }; + +-#define REG_ADDR(state, regnum) ((char *)(state) + reg_offset[regnum]) ++static const int amd64_gnu_thread_state_num_regs = ++ ARRAY_SIZE (amd64_gnu_thread_state_reg_offset); ++ ++#define REG_ADDR(state, regnum) \ ++ ((char *)(state) + amd64_gnu_thread_state_reg_offset[regnum]) ++#define VALID_REGISTER(regnum) \ ++ ((regnum) >= 0 && (regnum) < amd64_gnu_thread_state_num_regs) ++#define NUM_GREGS amd64_gnu_thread_state_num_regs ++#define FLAGS_REGISTER rfl ++ ++#else ++ ++/* At REG_OFFSET[N] is the offset to the thread_state_t location where ++ the GDB register N is stored. */ ++static int i386_gnu_thread_state_reg_offset[] = ++{ ++ REG_OFFSET (eax), /* %eax */ ++ REG_OFFSET (ecx), /* %ecx */ ++ REG_OFFSET (edx), /* %edx */ ++ REG_OFFSET (ebx), /* %ebx */ ++ REG_OFFSET (uesp), /* %esp */ ++ REG_OFFSET (ebp), /* %ebp */ ++ REG_OFFSET (esi), /* %esi */ ++ REG_OFFSET (edi), /* %edi */ ++ REG_OFFSET (eip), /* %eip */ ++ REG_OFFSET (efl), /* %efl */ ++ REG_OFFSET (cs), /* %cs */ ++ REG_OFFSET (ss), /* %ss */ ++ REG_OFFSET (ds), /* %ds */ ++ REG_OFFSET (es), /* %es */ ++ REG_OFFSET (fs), /* %fs */ ++ REG_OFFSET (gs) /* gs */ ++}; ++ ++static const int i386_gnu_thread_state_num_regs = ++ ARRAY_SIZE (i386_gnu_thread_state_reg_offset); ++ ++#define REG_ADDR(state, regnum) \ ++ ((char *)(state) + i386_gnu_thread_state_reg_offset[regnum]) ++#define VALID_REGISTER(regnum) \ ++ ((regnum) >= 0 && (regnum) < i386_gnu_thread_state_num_regs) ++#define NUM_GREGS i386_gnu_thread_state_num_regs ++#define FLAGS_REGISTER efl ++ ++#endif /* __x86_64__ */ + + + +-/* The i386 GNU Hurd target. */ ++/* The x86 GNU Hurd target. */ + + #ifdef i386_DEBUG_STATE + using gnu_base_target = x86_nat_target; +@@ -64,13 +131,13 @@ using gnu_base_target = x86_nat_target; + using gnu_base_target = gnu_nat_target; + #endif + +-struct i386_gnu_nat_target final : public gnu_base_target ++struct x86_gnu_nat_target final : public gnu_base_target + { + void fetch_registers (struct regcache *, int) override; + void store_registers (struct regcache *, int) override; + }; + +-static i386_gnu_nat_target the_i386_gnu_nat_target; ++static x86_gnu_nat_target the_x86_gnu_nat_target; + + /* Get the whole floating-point state of THREAD and record the values + of the corresponding (pseudo) registers. */ +@@ -105,7 +172,7 @@ fetch_fpregs (struct regcache *regcache, struct proc *thread) + + /* Fetch register REGNO, or all regs if REGNO is -1. */ + void +-i386_gnu_nat_target::fetch_registers (struct regcache *regcache, int regno) ++x86_gnu_nat_target::fetch_registers (struct regcache *regcache, int regno) + { + struct proc *thread; + ptid_t ptid = regcache->ptid (); +@@ -118,7 +185,7 @@ i386_gnu_nat_target::fetch_registers (struct regcache *regcache, int regno) + error (_("Can't fetch registers from thread %s: No such thread"), + target_pid_to_str (ptid).c_str ()); + +- if (regno < I386_NUM_GREGS || regno == -1) ++ if (VALID_REGISTER (regno) || regno == -1) + { + thread_state_t state; + +@@ -137,7 +204,7 @@ i386_gnu_nat_target::fetch_registers (struct regcache *regcache, int regno) + + proc_debug (thread, "fetching all register"); + +- for (i = 0; i < I386_NUM_GREGS; i++) ++ for (i = 0; i < NUM_GREGS; i++) + regcache->raw_supply (i, REG_ADDR (state, i)); + thread->fetched_regs = ~0; + } +@@ -152,7 +219,7 @@ i386_gnu_nat_target::fetch_registers (struct regcache *regcache, int regno) + } + } + +- if (regno >= I386_NUM_GREGS || regno == -1) ++ if (!VALID_REGISTER(regno) || regno == -1) + { + proc_debug (thread, "fetching floating-point registers"); + +@@ -195,7 +262,7 @@ store_fpregs (const struct regcache *regcache, struct proc *thread, int regno) + + /* Store at least register REGNO, or all regs if REGNO == -1. */ + void +-i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) ++x86_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + { + struct proc *thread; + struct gdbarch *gdbarch = regcache->arch (); +@@ -209,7 +276,7 @@ i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + error (_("Couldn't store registers into thread %s: No such thread"), + target_pid_to_str (ptid).c_str ()); + +- if (regno < I386_NUM_GREGS || regno == -1) ++ if (VALID_REGISTER (regno) || regno == -1) + { + thread_state_t state; + thread_state_data_t old_state; +@@ -230,14 +297,14 @@ i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + + /* Save the T bit. We might try to restore the %eflags register + below, but changing the T bit would seriously confuse GDB. */ +- trace = ((struct i386_thread_state *)state)->efl & 0x100; ++ trace = ((struct i386_thread_state *)state)->FLAGS_REGISTER & 0x100; + + if (!was_aborted && was_valid) + /* See which registers have changed after aborting the thread. */ + { + int check_regno; + +- for (check_regno = 0; check_regno < I386_NUM_GREGS; check_regno++) ++ for (check_regno = 0; check_regno < NUM_GREGS; check_regno++) + if ((thread->fetched_regs & (1 << check_regno)) + && memcpy (REG_ADDR (&old_state, check_regno), + REG_ADDR (state, check_regno), +@@ -262,7 +329,7 @@ i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + + proc_debug (thread, "storing all registers"); + +- for (i = 0; i < I386_NUM_GREGS; i++) ++ for (i = 0; i < NUM_GREGS; i++) + if (REG_VALID == regcache->get_register_status (i)) + regcache->raw_collect (i, REG_ADDR (state, i)); + } +@@ -276,11 +343,11 @@ i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + } + + /* Restore the T bit. */ +- ((struct i386_thread_state *)state)->efl &= ~0x100; +- ((struct i386_thread_state *)state)->efl |= trace; ++ ((struct i386_thread_state *)state)->FLAGS_REGISTER &= ~0x100; ++ ((struct i386_thread_state *)state)->FLAGS_REGISTER |= trace; + } + +- if (regno >= I386_NUM_GREGS || regno == -1) ++ if (!VALID_REGISTER (regno) || regno == -1) + { + proc_debug (thread, "storing floating-point registers"); + +@@ -295,7 +362,7 @@ i386_gnu_nat_target::store_registers (struct regcache *regcache, int regno) + /* Get debug registers for thread THREAD. */ + + static void +-i386_gnu_dr_get (struct i386_debug_state *regs, struct proc *thread) ++x86_gnu_dr_get (struct i386_debug_state *regs, struct proc *thread) + { + mach_msg_type_number_t count = i386_DEBUG_STATE_COUNT; + kern_return_t err; +@@ -310,7 +377,7 @@ i386_gnu_dr_get (struct i386_debug_state *regs, struct proc *thread) + /* Set debug registers for thread THREAD. */ + + static void +-i386_gnu_dr_set (const struct i386_debug_state *regs, struct proc *thread) ++x86_gnu_dr_set (const struct i386_debug_state *regs, struct proc *thread) + { + kern_return_t err; + +@@ -324,23 +391,23 @@ i386_gnu_dr_set (const struct i386_debug_state *regs, struct proc *thread) + /* Set DR_CONTROL in THREAD. */ + + static void +-i386_gnu_dr_set_control_one (struct proc *thread, void *arg) ++x86_gnu_dr_set_control_one (struct proc *thread, void *arg) + { + unsigned long *control = (unsigned long *) arg; + struct i386_debug_state regs; + +- i386_gnu_dr_get (®s, thread); ++ x86_gnu_dr_get (®s, thread); + regs.dr[DR_CONTROL] = *control; +- i386_gnu_dr_set (®s, thread); ++ x86_gnu_dr_set (®s, thread); + } + + /* Set DR_CONTROL to CONTROL in all threads. */ + + static void +-i386_gnu_dr_set_control (unsigned long control) ++x86_gnu_dr_set_control (unsigned long control) + { + inf_update_procs (gnu_current_inf); +- inf_threads (gnu_current_inf, i386_gnu_dr_set_control_one, &control); ++ inf_threads (gnu_current_inf, x86_gnu_dr_set_control_one, &control); + } + + /* Parameters to set a debugging address. */ +@@ -354,20 +421,20 @@ struct reg_addr + /* Set address REGNUM (zero based) to ADDR in THREAD. */ + + static void +-i386_gnu_dr_set_addr_one (struct proc *thread, void *arg) ++x86_gnu_dr_set_addr_one (struct proc *thread, void *arg) + { + struct reg_addr *reg_addr = (struct reg_addr *) arg; + struct i386_debug_state regs; + +- i386_gnu_dr_get (®s, thread); ++ x86_gnu_dr_get (®s, thread); + regs.dr[reg_addr->regnum] = reg_addr->addr; +- i386_gnu_dr_set (®s, thread); ++ x86_gnu_dr_set (®s, thread); + } + + /* Set address REGNUM (zero based) to ADDR in all threads. */ + + static void +-i386_gnu_dr_set_addr (int regnum, CORE_ADDR addr) ++x86_gnu_dr_set_addr (int regnum, CORE_ADDR addr) + { + struct reg_addr reg_addr; + +@@ -377,13 +444,13 @@ i386_gnu_dr_set_addr (int regnum, CORE_ADDR addr) + reg_addr.addr = addr; + + inf_update_procs (gnu_current_inf); +- inf_threads (gnu_current_inf, i386_gnu_dr_set_addr_one, ®_addr); ++ inf_threads (gnu_current_inf, x86_gnu_dr_set_addr_one, ®_addr); + } + + /* Get debug register REGNUM value from only the one LWP of PTID. */ + + static unsigned long +-i386_gnu_dr_get_reg (ptid_t ptid, int regnum) ++x86_gnu_dr_get_reg (ptid_t ptid, int regnum) + { + struct i386_debug_state regs; + struct proc *thread; +@@ -392,7 +459,7 @@ i386_gnu_dr_get_reg (ptid_t ptid, int regnum) + inf_update_procs (gnu_current_inf); + + thread = inf_tid_to_thread (gnu_current_inf, ptid.lwp ()); +- i386_gnu_dr_get (®s, thread); ++ x86_gnu_dr_get (®s, thread); + + return regs.dr[regnum]; + } +@@ -400,46 +467,50 @@ i386_gnu_dr_get_reg (ptid_t ptid, int regnum) + /* Return the inferior's debug register REGNUM. */ + + static CORE_ADDR +-i386_gnu_dr_get_addr (int regnum) ++x86_gnu_dr_get_addr (int regnum) + { + gdb_assert (DR_FIRSTADDR <= regnum && regnum <= DR_LASTADDR); + +- return i386_gnu_dr_get_reg (inferior_ptid, regnum); ++ return x86_gnu_dr_get_reg (inferior_ptid, regnum); + } + + /* Get DR_STATUS from only the one thread of INFERIOR_PTID. */ + + static unsigned long +-i386_gnu_dr_get_status (void) ++x86_gnu_dr_get_status (void) + { +- return i386_gnu_dr_get_reg (inferior_ptid, DR_STATUS); ++ return x86_gnu_dr_get_reg (inferior_ptid, DR_STATUS); + } + + /* Return the inferior's DR7 debug control register. */ + + static unsigned long +-i386_gnu_dr_get_control (void) ++x86_gnu_dr_get_control (void) + { +- return i386_gnu_dr_get_reg (inferior_ptid, DR_CONTROL); ++ return x86_gnu_dr_get_reg (inferior_ptid, DR_CONTROL); + } + #endif /* i386_DEBUG_STATE */ + +-void _initialize_i386gnu_nat (); ++void _initialize_x86_gnu_nat (); + void +-_initialize_i386gnu_nat () ++_initialize_x86_gnu_nat () + { + #ifdef i386_DEBUG_STATE +- x86_dr_low.set_control = i386_gnu_dr_set_control; ++ x86_dr_low.set_control = x86_gnu_dr_set_control; + gdb_assert (DR_FIRSTADDR == 0 && DR_LASTADDR < i386_DEBUG_STATE_COUNT); +- x86_dr_low.set_addr = i386_gnu_dr_set_addr; +- x86_dr_low.get_addr = i386_gnu_dr_get_addr; +- x86_dr_low.get_status = i386_gnu_dr_get_status; +- x86_dr_low.get_control = i386_gnu_dr_get_control; ++ x86_dr_low.set_addr = x86_gnu_dr_set_addr; ++ x86_dr_low.get_addr = x86_gnu_dr_get_addr; ++ x86_dr_low.get_status = x86_gnu_dr_get_status; ++ x86_dr_low.get_control = x86_gnu_dr_get_control; ++#ifdef __x86_64__ ++ x86_set_debug_register_length (8); ++#else + x86_set_debug_register_length (4); ++#endif + #endif /* i386_DEBUG_STATE */ + +- gnu_target = &the_i386_gnu_nat_target; ++ gnu_target = &the_x86_gnu_nat_target; + + /* Register the target. */ +- add_inf_child_target (&the_i386_gnu_nat_target); ++ add_inf_child_target (&the_x86_gnu_nat_target); + } +-- +2.46.0 + +From 7cfe6f639e601d6cca567342360ecbd3cdca128c Mon Sep 17 00:00:00 2001 +From: Flavio Cruz +Date: Wed, 3 Jul 2024 23:05:06 +0100 +Subject: [PATCH 2/2] Hurd: do not include defs.h when compiling MiG stubs + since they are compiled as C files + +Otherwise, GDB will fail to compile for Hurd. +--- + gdb/Makefile.in | 3 ++- + gdb/config/i386/x86-gnu.mn | 4 +++- + 2 files changed, 5 insertions(+), 2 deletions(-) + +diff --git a/gdb/Makefile.in b/gdb/Makefile.in +index 67a15e2cc68..d847a8bad72 100644 +--- a/gdb/Makefile.in ++++ b/gdb/Makefile.in +@@ -603,11 +603,12 @@ CONFIG_DEP_SUBDIR = $(addsuffix /$(DEPDIR),$(CONFIG_SRC_SUBDIR)) + # your system doesn't have fcntl.h in /usr/include (which is where it + # should be according to Posix). + DEFS = @DEFS@ ++GDB_INCLUDED_HEADER = -include $(srcdir)/defs.h + GDB_CFLAGS = \ + -I. \ + -I$(srcdir) \ + -I$(srcdir)/config \ +- -include $(srcdir)/defs.h \ ++ $(GDB_INCLUDED_HEADER) \ + -DLOCALEDIR="\"$(localedir)\"" \ + $(DEFS) + +diff --git a/gdb/config/i386/x86-gnu.mn b/gdb/config/i386/x86-gnu.mn +index b7414e3bcb4..24c58b02e98 100644 +--- a/gdb/config/i386/x86-gnu.mn ++++ b/gdb/config/i386/x86-gnu.mn +@@ -21,7 +21,9 @@ MIGCOM = $(MIG) -cc cat - /dev/null + | $(MIGCOM) -sheader /dev/null -server /dev/null -user $*_U.c -header $*_U.h + + # MIG stubs are not yet ready for C++ compilation. +-%_S.o %_U.o : COMPILE.post += -x c -include gnu-nat-mig.h ++%_S.o %_U.o : COMPILE.post += -x c ++# Do not include defs.h since it requires C++. Rather include our own gnu-nat-mig.h ++%_S.o %_U.o : GDB_INCLUDED_HEADER = -include gnu-nat-mig.h + + NAT_GENERATED_FILES = notify_S.h notify_S.c \ + process_reply_S.h process_reply_S.c \ +-- +2.46.0 + -- 2.46.0