- Fix bogus 0x0 unwind of the thread's topmost function clone(3) (BZ
216711). - Testcase for readline segfault on excessively long hand-typed lines. - Related: rhbz#216711
This commit is contained in:
parent
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commit
b9610957d2
260
gdb-6.5-bz216711-clone-is-outermost.patch
Normal file
260
gdb-6.5-bz216711-clone-is-outermost.patch
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@ -0,0 +1,260 @@
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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216711
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2006-12-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb/amd64-linux-tdep.c (linux_clone_code): New variable.
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(LINUX_CLONE_LEN): New definition.
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(amd64_linux_clone_running, amd64_linux_outermost_frame): New function.
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(amd64_linux_init_abi): Initialize `outermost_frame_p'.
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* gdb/i386-tdep.c (i386_gdbarch_init): Likewise.
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* gdb/i386-tdep.h (gdbarch_tdep): Add `outermost_frame_p' member.
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* gdb/amd64-tdep.c (amd64_frame_this_id): Call `outermost_frame_p'.
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2006-12-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.threads/bt-clone-stop.exp, gdb.threads/bt-clone-stop.c:
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New file.
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--- ./gdb/amd64-linux-tdep.c 19 Aug 2006 15:15:18 -0000 1.12
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+++ ./gdb/amd64-linux-tdep.c 17 Dec 2006 17:59:05 -0000
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@@ -235,6 +235,80 @@ amd64_linux_register_reggroup_p (struct
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/* Set the program counter for process PTID to PC. */
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+/* Detect the outermost frame; during unwind of
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+ #5 0x000000305cec68c3 in clone () from /lib64/tls/libc.so.6
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+ avoid the additional bogus frame
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+ #6 0x0000000000000000 in ??
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+ We compare if the `linux_clone_code' block is _before_ unwound PC. */
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+
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+static const unsigned char linux_clone_code[] =
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+{
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+/* libc/sysdeps/unix/sysv/linux/x86_64/clone.S */
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+/* #ifdef RESET_PID */
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+/* ... */
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+/* mov $SYS_ify(getpid), %eax */
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+/* 0xb8, 0x27, 0x00, 0x00, 0x00 */
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+/* OR */
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+/* mov $SYS_ify(getpid), %rax */
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+/* 0x48, 0xc7, 0xc0, 0x27, 0x00, 0x00, 0x00 */
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+/* so just: */
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+ 0x27, 0x00, 0x00, 0x00,
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+/* syscall */
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+ 0x0f, 0x05,
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+/* movl %eax, %fs:PID */
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+ 0x64, 0x89, 0x04, 0x25, 0x94, 0x00, 0x00, 0x00,
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+/* movl %eax, %fs:TID */
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+ 0x64, 0x89, 0x04, 0x25, 0x90, 0x00, 0x00, 0x00,
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+/* #endif */
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+/* |* Set up arguments for the function call. *| */
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+/* popq %rax |* Function to call. *| */
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+ 0x58,
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+/* popq %rdi |* Argument. *| */
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+ 0x5f,
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+/* call *%rax$ */
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+ 0xff, 0xd0
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+};
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+
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+#define LINUX_CLONE_LEN (sizeof linux_clone_code)
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+
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+static int
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+amd64_linux_clone_running (struct frame_info *next_frame)
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+{
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+ CORE_ADDR pc = frame_pc_unwind (next_frame);
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+ unsigned char buf[LINUX_CLONE_LEN];
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+
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+ if (!safe_frame_unwind_memory (next_frame, pc - LINUX_CLONE_LEN, buf,
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+ LINUX_CLONE_LEN))
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+ return 0;
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+
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+ if (memcmp (buf, linux_clone_code, LINUX_CLONE_LEN) != 0)
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+ return 0;
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+
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+ return 1;
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+}
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+
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+static int
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+amd64_linux_outermost_frame (struct frame_info *next_frame)
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+{
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+ CORE_ADDR pc = frame_pc_unwind (next_frame);
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+ char *name;
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+
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+ find_pc_partial_function (pc, &name, NULL, NULL);
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+
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+ /* If we have NAME, we can optimize the search.
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+ `clone' NAME still needs to have the code checked as its name may be
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+ present in the user code.
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+ `__clone' NAME should not be present in the user code but in the initial
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+ parts of the `__clone' implementation the unwind still makes sense.
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+ More detailed unwinding decision would be too much sensitive to possible
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+ subtle changes in specific glibc revisions. */
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+ if (name == NULL || strcmp (name, "clone") == 0
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+ || strcmp ("__clone", name) == 0)
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+ return (amd64_linux_clone_running (next_frame) != 0);
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+
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+ return 0;
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+}
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+
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static void
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amd64_linux_write_pc (CORE_ADDR pc, ptid_t ptid)
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{
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@@ -273,6 +342,8 @@ amd64_linux_init_abi (struct gdbarch_inf
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tdep->sc_reg_offset = amd64_linux_sc_reg_offset;
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tdep->sc_num_regs = ARRAY_SIZE (amd64_linux_sc_reg_offset);
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+ tdep->outermost_frame_p = amd64_linux_outermost_frame;
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+
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/* GNU/Linux uses SVR4-style shared libraries. */
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set_solib_svr4_fetch_link_map_offsets
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(gdbarch, svr4_lp64_fetch_link_map_offsets);
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--- ./gdb/amd64-tdep.c 19 Aug 2006 15:15:18 -0000 1.32
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+++ ./gdb/amd64-tdep.c 17 Dec 2006 17:59:05 -0000
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@@ -879,11 +879,16 @@ amd64_frame_this_id (struct frame_info *
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{
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struct amd64_frame_cache *cache =
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amd64_frame_cache (next_frame, this_cache);
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+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
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/* This marks the outermost frame. */
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if (cache->base == 0)
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return;
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+ /* Detect OS dependent outermost frames; such as `clone'. */
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+ if (tdep->outermost_frame_p && tdep->outermost_frame_p (next_frame))
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+ return;
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+
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(*this_id) = frame_id_build (cache->base + 16, cache->pc);
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}
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--- ./gdb/i386-tdep.c 8 Aug 2006 21:36:46 -0000 1.225
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+++ ./gdb/i386-tdep.c 17 Dec 2006 17:59:10 -0000
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@@ -2313,6 +2313,9 @@ i386_gdbarch_init (struct gdbarch_info i
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tdep->sc_pc_offset = -1;
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tdep->sc_sp_offset = -1;
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+ /* Unwinding stops on i386 automatically. */
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+ tdep->outermost_frame_p = NULL;
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+
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/* The format used for `long double' on almost all i386 targets is
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the i387 extended floating-point format. In fact, of all targets
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in the GCC 2.95 tree, only OSF/1 does it different, and insists
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--- ./gdb/i386-tdep.h 21 Jan 2006 20:59:50 -0000 1.46
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+++ ./gdb/i386-tdep.h 17 Dec 2006 17:59:10 -0000
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@@ -104,6 +104,9 @@ struct gdbarch_tdep
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is deprecated, please use `sc_reg_offset' instead. */
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int sc_pc_offset;
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int sc_sp_offset;
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+
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+ /* Detect OS dependent outermost frames; such as `clone'. */
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+ int (*outermost_frame_p) (struct frame_info *next_frame);
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};
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/* Floating-point registers. */
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ ./gdb/testsuite/gdb.threads/bt-clone-stop.c 17 Dec 2006 17:59:19 -0000
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@@ -0,0 +1,39 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2006 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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+ MA 02110-1301, USA. */
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+
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+
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+#include <pthread.h>
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+#include <unistd.h>
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+#include <assert.h>
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+
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+
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+void *threader (void *arg)
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+{
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+ assert (0);
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+ return NULL;
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+}
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+
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+int main (void)
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+{
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+ pthread_t t1;
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+
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+ pthread_create (&t1, NULL, threader, (void *) NULL);
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+ for (;;)
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+ pause();
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+}
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ ./gdb/testsuite/gdb.threads/bt-clone-stop.exp 17 Dec 2006 17:59:19 -0000
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@@ -0,0 +1,61 @@
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+# Copyright 2006 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+# Backtraced `clone' must not have `PC == 0' as its previous frame.
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+
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+if $tracelevel then {
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+ strace $tracelevel
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+}
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+
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+set testfile bt-clone-stop
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+set srcfile ${testfile}.c
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+set binfile ${objdir}/${subdir}/${testfile}
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+if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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+ untested "Couldn't compile test program"
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+ return -1
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+}
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+
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+# Get things started.
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+# threader: threader.c:8: threader: Assertion `0' failed.
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+# Program received signal SIGABRT, Aborted.
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+
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+gdb_test "run" \
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+ "Program received signal SIGABRT.*" \
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+ "run"
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+
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+# Former gdb unwind (the first function is `clone'):
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+# #5 0x0000003421ecd62d in ?? () from /lib64/libc.so.6
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+# #6 0x0000000000000000 in ?? ()
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+# (gdb)
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+# Tested `amd64_linux_outermost_frame' functionality should omit the line `#6'.
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+#
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+# Two `-re' cases below must be in this order (1st is a subset of the 2nd one).
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+# Unhandled case below should not happen and it is fortunately handled by
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+# `amd64_linux_outermost_frame' as FAIL (and result `0x0 entry output invalid').
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+gdb_test_multiple "bt" "0x0 entry output invalid" {
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+ -re "in threader \\(.*\n#\[0-9\]* *0x0* in .*$gdb_prompt $" {
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+ fail "0x0 entry found"
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+ }
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+ -re "in threader \\(.*$gdb_prompt $" {
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+ pass "0x0 entry not found"
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+ }
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+}
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136
gdb-6.5-readline-long-line-crash-test.patch
Normal file
136
gdb-6.5-readline-long-line-crash-test.patch
Normal file
@ -0,0 +1,136 @@
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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214196
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Index: ./gdb/testsuite/gdb.base/readline-overflow.exp
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===================================================================
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RCS file: ./gdb/testsuite/gdb.base/readline-overflow.exp
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diff -N ./gdb/testsuite/gdb.base/readline-overflow.exp
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ ./gdb/testsuite/gdb.base/readline-overflow.exp 13 Nov 2006 23:42:50 -0000
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@@ -0,0 +1,125 @@
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+# Copyright 2006 Free Software Foundation, Inc.
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+
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+# 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 2 of the License, or
|
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|
+# (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
|
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|
+# 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, write to the Free Software
|
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|
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
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|
+
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+# Please email any bugs, comments, and/or additions to this file to:
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+# bug-gdb@prep.ai.mit.edu
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+
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+# This file was written by Jan Kratochvil <jan.kratochvil@redhat.com>
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+
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+# This file is part of the gdb testsuite.
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+
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+#
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+# Tests for readline buffer overflow.
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+#
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+
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+if $tracelevel {
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+ strace $tracelevel
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+}
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+
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+# Don't let a .inputrc file or an existing setting of INPUTRC mess up
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+# the test results. Even if /dev/null doesn't exist on the particular
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+# platform, the readline library will use the default setting just by
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+# failing to open the file. OTOH, opening /dev/null successfully will
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+# also result in the default settings being used since nothing will be
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+# read from this file.
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+global env
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+if [info exists env(INPUTRC)] {
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+ set old_inputrc $env(INPUTRC)
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|
+}
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+set env(INPUTRC) "/dev/null"
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+
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|
+set oldtimeout1 $timeout
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|
+set timeout 600
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+
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|
+if [info exists env(GDBHISTFILE)] {
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+ set old_gdbhistfile $env(GDBHISTFILE)
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|
+}
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+if [info exists env(HISTSIZE)] {
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+ set old_histsize $env(HISTSIZE)
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+}
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+set env(GDBHISTFILE) "${srcdir}/${subdir}/gdb_history"
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+set env(HISTSIZE) "10"
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+
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+gdb_exit
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|
+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+
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+
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|
+set width 11
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+gdb_test "set width $width" \
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+ "" \
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+ "Setting width to $width."
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+#gdb_test "set height 1" \
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+# "" \
|
||||||
|
+# "Setting height to 1."
|
||||||
|
+send_gdb "run X"
|
||||||
|
+set i 0
|
||||||
|
+# It crashes using `set width 7' on `set total 3560'.
|
||||||
|
+# Sometimes it corrupts screen on `set width 7'.
|
||||||
|
+# Bugreport used `set total 130001':
|
||||||
|
+# https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214196
|
||||||
|
+# Check also `timeout' above.
|
||||||
|
+set total 4200
|
||||||
|
+gdb_expect {
|
||||||
|
+ -re X {
|
||||||
|
+ incr i
|
||||||
|
+ if {$i <= $total} {
|
||||||
|
+ send_gdb "X"
|
||||||
|
+ exp_continue
|
||||||
|
+ }
|
||||||
|
+ }
|
||||||
|
+ -re "\[ \b\r\n\]" {
|
||||||
|
+ exp_continue
|
||||||
|
+ }
|
||||||
|
+ eof {
|
||||||
|
+ fail "gdb sending total $total characters"
|
||||||
|
+ note "Failed after sending $i characters, reason: EOF"
|
||||||
|
+ gdb_clear_suppressed
|
||||||
|
+ }
|
||||||
|
+ timeout {
|
||||||
|
+ fail "gdb sending total $total characters"
|
||||||
|
+ note "Failed after sending $i characters (timeout $timeout), reason: TIMEOUT"
|
||||||
|
+ gdb_clear_suppressed
|
||||||
|
+ }
|
||||||
|
+ default {
|
||||||
|
+ fail "gdb sending total $total characters"
|
||||||
|
+ note "Failed after sending $i characters, reason: 0=\[$expect_out(0,string)\] buffer=\[$expect_out(buffer)\]"
|
||||||
|
+ gdb_clear_suppressed
|
||||||
|
+ }
|
||||||
|
+}
|
||||||
|
+gdb_test "\r" \
|
||||||
|
+ "No executable file specified..*" \
|
||||||
|
+ "All the characters transferred"
|
||||||
|
+
|
||||||
|
+
|
||||||
|
+# Restore globals modified in this test...
|
||||||
|
+if [info exists old_inputrc] {
|
||||||
|
+ set env(INPUTRC) $old_inputrc
|
||||||
|
+} else {
|
||||||
|
+ unset env(INPUTRC)
|
||||||
|
+}
|
||||||
|
+if [info exists old_gdbhistfile] {
|
||||||
|
+ set env(GDBHISTFILE) $old_gdbhistfile
|
||||||
|
+} else {
|
||||||
|
+ unset env(GDBHISTFILE)
|
||||||
|
+}
|
||||||
|
+if [info exists old_histsize] {
|
||||||
|
+ set env(HISTSIZE) $old_histsize
|
||||||
|
+} else {
|
||||||
|
+ unset env(HISTSIZE)
|
||||||
|
+}
|
||||||
|
+set timeout $oldtimeout1
|
||||||
|
+
|
||||||
|
+return 0
|
12
gdb.spec
12
gdb.spec
@ -11,7 +11,7 @@ Name: gdb
|
|||||||
Version: 6.5
|
Version: 6.5
|
||||||
|
|
||||||
# The release always contains a leading reserved number, start it at 0.
|
# The release always contains a leading reserved number, start it at 0.
|
||||||
Release: 19%{?dist}
|
Release: 20%{?dist}
|
||||||
|
|
||||||
License: GPL
|
License: GPL
|
||||||
Group: Development/Debuggers
|
Group: Development/Debuggers
|
||||||
@ -304,10 +304,14 @@ Patch208: gdb-6.5-BEA-testsuite.patch
|
|||||||
|
|
||||||
# Fix readline segfault on excessively long hand-typed lines.
|
# Fix readline segfault on excessively long hand-typed lines.
|
||||||
Patch209: gdb-6.5-readline-long-line-crash.patch
|
Patch209: gdb-6.5-readline-long-line-crash.patch
|
||||||
|
Patch213: gdb-6.5-readline-long-line-crash-test.patch
|
||||||
|
|
||||||
# Fix readline history for input mode commands like `command' (BZ 215816).
|
# Fix readline history for input mode commands like `command' (BZ 215816).
|
||||||
Patch212: gdb-6.5-bz215816-readline-from-callback.patch
|
Patch212: gdb-6.5-bz215816-readline-from-callback.patch
|
||||||
|
|
||||||
|
# Fix bogus 0x0 unwind of the thread's topmost function clone(3) (BZ 216711).
|
||||||
|
Patch214: gdb-6.5-bz216711-clone-is-outermost.patch
|
||||||
|
|
||||||
BuildRequires: ncurses-devel glibc-devel gcc make gzip texinfo dejagnu gettext
|
BuildRequires: ncurses-devel glibc-devel gcc make gzip texinfo dejagnu gettext
|
||||||
BuildRequires: flex bison sharutils
|
BuildRequires: flex bison sharutils
|
||||||
|
|
||||||
@ -428,6 +432,8 @@ and printing their data.
|
|||||||
%patch209 -p1
|
%patch209 -p1
|
||||||
%patch211 -p1
|
%patch211 -p1
|
||||||
%patch212 -p1
|
%patch212 -p1
|
||||||
|
%patch213 -p1
|
||||||
|
%patch214 -p1
|
||||||
|
|
||||||
# Change the version that gets printed at GDB startup, so it is RedHat
|
# Change the version that gets printed at GDB startup, so it is RedHat
|
||||||
# specific.
|
# specific.
|
||||||
@ -591,6 +597,10 @@ fi
|
|||||||
# don't include the files in include, they are part of binutils
|
# don't include the files in include, they are part of binutils
|
||||||
|
|
||||||
%changelog
|
%changelog
|
||||||
|
* Tue Dec 19 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-20
|
||||||
|
- Fix bogus 0x0 unwind of the thread's topmost function clone(3) (BZ 216711).
|
||||||
|
- Testcase for readline segfault on excessively long hand-typed lines.
|
||||||
|
|
||||||
* Tue Dec 12 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-19
|
* Tue Dec 12 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-19
|
||||||
- Fix attachment also to a threaded stopped process (BZ 219118).
|
- Fix attachment also to a threaded stopped process (BZ 219118).
|
||||||
- Cleanup any leftover testsuite processes as it may stuck mock(1) builds.
|
- Cleanup any leftover testsuite processes as it may stuck mock(1) builds.
|
||||||
|
Loading…
Reference in New Issue
Block a user