656 lines
19 KiB
Diff
656 lines
19 KiB
Diff
http://sourceware.org/ml/gdb-patches/2011-07/msg00645.html
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Subject: [patch] workaround gcc46: prologue skip skips too far (PR 12435) #2
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Hi,
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this is an improved patch of a former:
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[patch] workaround gcc46: prologue skip skips too far (PR 12435)
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http://sourceware.org/ml/gdb-patches/2011-03/msg01108.html
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cancel/FYI: Re: [patch] workaround gcc46: prologue skip skips too far (PR 12435)
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http://sourceware.org/ml/gdb-patches/2011-03/msg01123.html
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For example `break error' does not work for debugging GDB with gcc-4.6.x.
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As gcc-4.6.0 and now even 4.6.1 still has this bug and I have seen a user(s?)
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on non-Fedora platform asking about this bug and as there may be enough
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binaries out there (although it affects only -O0 -g compilation) coded it
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properly I have coded the workaround properly this time.
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It does not solve overlays well, but the code just does not work for overlays,
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it has no other negative effect.
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I will update the code after FSF gcc gets fixed to minimize the workaround.
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No regressions on {x86_64,x86_64-m32,i686}-fedora16pre-linux-gnu.
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I would welcome a comment whether it is suitable for FSF GDB.
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Thanks,
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Jan
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gdb/
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2011-07-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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PR breakpoints/12435
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* amd64-tdep.c (amd64_skip_prologue): New variables start_pc_sal,
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next_sal, buf, offset and xmmreg. Advance PC if it sees the PR.
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* dwarf2read.c (process_full_comp_unit): Initialize
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amd64_prologue_line_bug.
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* symtab.h (struct symtab): New field amd64_prologue_line_bug.
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gdb/testsuite/
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2011-07-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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PR breakpoints/12435
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* gdb.arch/amd64-prologue-xmm.c: New file.
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* gdb.arch/amd64-prologue-xmm.exp: New file.
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* gdb.arch/amd64-prologue-xmm.s: New file.
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--- a/gdb/amd64-tdep.c
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+++ b/gdb/amd64-tdep.c
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@@ -1902,6 +1902,9 @@ amd64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
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{
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struct amd64_frame_cache cache;
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CORE_ADDR pc;
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+ struct symtab_and_line start_pc_sal, next_sal;
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+ gdb_byte buf[4 + 8 * 7];
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+ int offset, xmmreg;
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amd64_init_frame_cache (&cache);
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pc = amd64_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffLL,
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@@ -1909,7 +1912,71 @@ amd64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
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if (cache.frameless_p)
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return start_pc;
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- return pc;
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+ /* GCC PR debug/48827 produced false prologue end:
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+ 84 c0 test %al,%al
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+ 74 23 je after
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+ <-- here is 0 lines advance - the false prologue end marker.
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+ 0f 29 85 70 ff ff ff movaps %xmm0,-0x90(%rbp)
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+ 0f 29 4d 80 movaps %xmm1,-0x80(%rbp)
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+ 0f 29 55 90 movaps %xmm2,-0x70(%rbp)
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+ 0f 29 5d a0 movaps %xmm3,-0x60(%rbp)
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+ 0f 29 65 b0 movaps %xmm4,-0x50(%rbp)
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+ 0f 29 6d c0 movaps %xmm5,-0x40(%rbp)
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+ 0f 29 75 d0 movaps %xmm6,-0x30(%rbp)
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+ 0f 29 7d e0 movaps %xmm7,-0x20(%rbp)
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+ after: */
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+
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+ if (pc == start_pc)
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+ return pc;
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+
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+ start_pc_sal = find_pc_sect_line (start_pc, NULL, 0);
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+ if (start_pc_sal.symtab == NULL
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+ || !start_pc_sal.symtab->amd64_prologue_line_bug
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+ || start_pc_sal.pc != start_pc || pc >= start_pc_sal.end)
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+ return pc;
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+
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+ next_sal = find_pc_sect_line (start_pc_sal.end, NULL, 0);
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+ if (next_sal.line != start_pc_sal.line)
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+ return pc;
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+
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+ /* START_PC can be from overlayed memory, ignored here. */
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+ if (target_read_memory (next_sal.pc - 4, buf, sizeof (buf)) != 0)
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+ return pc;
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+
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+ /* test %al,%al */
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+ if (buf[0] != 0x84 || buf[1] != 0xc0)
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+ return pc;
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+ /* je AFTER */
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+ if (buf[2] != 0x74)
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+ return pc;
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+
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+ offset = 4;
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+ for (xmmreg = 0; xmmreg < 8; xmmreg++)
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+ {
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+ /* movaps %xmmreg?,-0x??(%rbp) */
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+ if (buf[offset] != 0x0f || buf[offset + 1] != 0x29
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+ || (buf[offset + 2] & 0b00111111) != (xmmreg << 3 | 0b101))
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+ return pc;
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+
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+ if ((buf[offset + 2] & 0b11000000) == 0b01000000)
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+ {
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+ /* 8-bit displacement. */
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+ offset += 4;
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+ }
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+ else if ((buf[offset + 2] & 0b11000000) == 0b10000000)
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+ {
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+ /* 32-bit displacement. */
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+ offset += 7;
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+ }
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+ else
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+ return pc;
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+ }
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+
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+ /* je AFTER */
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+ if (offset - 4 != buf[3])
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+ return pc;
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+
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+ return next_sal.end;
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}
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--- a/gdb/dwarf2read.c
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+++ b/gdb/dwarf2read.c
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@@ -4818,6 +4818,9 @@ process_full_comp_unit (struct dwarf2_per_cu_data *per_cu)
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if (gcc_4_minor >= 5)
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symtab->epilogue_unwind_valid = 1;
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+
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+ if (gcc_4_minor >= 6)
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+ symtab->amd64_prologue_line_bug = 1;
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}
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if (dwarf2_per_objfile->using_index)
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--- a/gdb/symtab.h
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+++ b/gdb/symtab.h
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@@ -784,6 +784,11 @@ struct symtab
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unsigned int epilogue_unwind_valid : 1;
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+ /* At least GCC 4.6.0 and 4.6.1 can produce invalid false prologue and marker
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+ on amd64. This flag is set independently of the symtab arch. */
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+
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+ unsigned amd64_prologue_line_bug : 1;
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+
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/* The macro table for this symtab. Like the blockvector, this
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may be shared between different symtabs --- and normally is for
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all the symtabs in a given compilation unit. */
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/amd64-prologue-xmm.c
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@@ -0,0 +1,38 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2011 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 3 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, see <http://www.gnu.org/licenses/>. */
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+
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+static volatile int v, fail;
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+
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+static void
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+func (int i, ...)
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+{
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+ v = i;
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+}
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+
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+static void
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+marker (void)
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+{
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+}
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+
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+int
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+main (void)
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+{
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+ func (1);
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+ fail = 1;
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+ marker ();
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+ return 0;
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+}
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/amd64-prologue-xmm.exp
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@@ -0,0 +1,46 @@
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+# Copyright 2011 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 3 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, see <http://www.gnu.org/licenses/>.
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+
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+# Test GCC PR debug/48827 workaround in GDB.
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+
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+set testfile "amd64-prologue-xmm"
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+set srcfile ${testfile}.s
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+set csrcfile ${testfile}.c
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+set binfile ${objdir}/${subdir}/${testfile}.x
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+set opts {}
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+
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+if [info exists COMPILE] {
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+ # make check RUNTESTFLAGS='gdb.arch/amd64-prologue-xmm.exp COMPILE=1'
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+ set srcfile ${csrcfile}
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+ lappend opts debug optimize=-O0
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+} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
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+ verbose "Skipping amd64-prologue-xmm test."
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+ return 0
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+}
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+
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+if {[prepare_for_testing ${testfile}.exp ${testfile} $srcfile $opts]} {
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+ return -1
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+}
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+
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+if ![runto_main] {
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+ return -1
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+}
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+
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+gdb_breakpoint "func"
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+gdb_breakpoint "marker"
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+
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+gdb_continue_to_breakpoint "func"
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+
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+gdb_test "p fail" " = 0" "stopped at func"
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/amd64-prologue-xmm.s
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@@ -0,0 +1,400 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2011 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 3 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, see <http://www.gnu.org/licenses/>. */
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+
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+/* This file is compiled from gdb.arch/amd64-prologue-xmm.c
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+ using -g -dA -S. */
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+
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+ .file "amd64-prologue-xmm.c"
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+ .text
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+.Ltext0:
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+ .local v
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+ .comm v,4,4
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+ .local fail
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+ .comm fail,4,4
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+ .type func, @function
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+func:
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+.LFB0:
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+ .file 1 "gdb.arch/amd64-prologue-xmm.c"
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+ # gdb.arch/amd64-prologue-xmm.c:22
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+ .loc 1 22 0
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+ .cfi_startproc
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+ # basic block 2
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+ pushq %rbp
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+ .cfi_def_cfa_offset 16
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+ .cfi_offset 6, -16
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+ movq %rsp, %rbp
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+ .cfi_def_cfa_register 6
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+ subq $72, %rsp
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+ movq %rsi, -168(%rbp)
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+ movq %rdx, -160(%rbp)
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+ movq %rcx, -152(%rbp)
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+ movq %r8, -144(%rbp)
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+ movq %r9, -136(%rbp)
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+ testb %al, %al
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+ je .L2
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+ # basic block 3
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+ # gdb.arch/amd64-prologue-xmm.c:22
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+ .loc 1 22 0
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+ movaps %xmm0, -128(%rbp)
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+ movaps %xmm1, -112(%rbp)
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+ movaps %xmm2, -96(%rbp)
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+ movaps %xmm3, -80(%rbp)
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+ movaps %xmm4, -64(%rbp)
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+ movaps %xmm5, -48(%rbp)
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+ movaps %xmm6, -32(%rbp)
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+ movaps %xmm7, -16(%rbp)
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+.L2:
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+ # basic block 4
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+ movl %edi, -180(%rbp)
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+ # gdb.arch/amd64-prologue-xmm.c:23
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+ .loc 1 23 0
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+ movl -180(%rbp), %eax
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+ movl %eax, v(%rip)
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+ # gdb.arch/amd64-prologue-xmm.c:24
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+ .loc 1 24 0
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+ leave
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+ .cfi_def_cfa 7, 8
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+ ret
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+ .cfi_endproc
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+.LFE0:
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+ .size func, .-func
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+ .type marker, @function
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+marker:
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+.LFB1:
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+ # gdb.arch/amd64-prologue-xmm.c:28
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+ .loc 1 28 0
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+ .cfi_startproc
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+ # basic block 2
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+ pushq %rbp
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+ .cfi_def_cfa_offset 16
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+ .cfi_offset 6, -16
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+ movq %rsp, %rbp
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+ .cfi_def_cfa_register 6
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+ # gdb.arch/amd64-prologue-xmm.c:29
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+ .loc 1 29 0
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+ popq %rbp
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+ .cfi_def_cfa 7, 8
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+ ret
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+ .cfi_endproc
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+.LFE1:
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+ .size marker, .-marker
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+ .globl main
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+ .type main, @function
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+main:
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+.LFB2:
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+ # gdb.arch/amd64-prologue-xmm.c:33
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+ .loc 1 33 0
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+ .cfi_startproc
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+ # basic block 2
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+ pushq %rbp
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+ .cfi_def_cfa_offset 16
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+ .cfi_offset 6, -16
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+ movq %rsp, %rbp
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+ .cfi_def_cfa_register 6
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+ # gdb.arch/amd64-prologue-xmm.c:34
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+ .loc 1 34 0
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+ movl $1, %edi
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+ movl $0, %eax
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+ call func
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+ # gdb.arch/amd64-prologue-xmm.c:35
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+ .loc 1 35 0
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+ movl $1, fail(%rip)
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+ # gdb.arch/amd64-prologue-xmm.c:36
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+ .loc 1 36 0
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+ call marker
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+ # gdb.arch/amd64-prologue-xmm.c:37
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+ .loc 1 37 0
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+ movl $0, %eax
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+ # gdb.arch/amd64-prologue-xmm.c:38
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+ .loc 1 38 0
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+ popq %rbp
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+ .cfi_def_cfa 7, 8
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+ ret
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+ .cfi_endproc
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+.LFE2:
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+ .size main, .-main
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+.Letext0:
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+ .section .debug_info,"",@progbits
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+.Ldebug_info0:
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+ .long 0xc0 # Length of Compilation Unit Info
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+ .value 0x4 # DWARF version number
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+ .long .Ldebug_abbrev0 # Offset Into Abbrev. Section
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+ .byte 0x8 # Pointer Size (in bytes)
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+ .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
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+ .long .LASF1 # DW_AT_producer: "GNU C 4.6.1 20110715 (Red Hat 4.6.1-3)"
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+ .byte 0x1 # DW_AT_language
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+ .long .LASF2 # DW_AT_name: "gdb.arch/amd64-prologue-xmm.c"
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+ .long .LASF3 # DW_AT_comp_dir: ""
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+ .quad .Ltext0 # DW_AT_low_pc
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+ .quad .Letext0 # DW_AT_high_pc
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+ .long .Ldebug_line0 # DW_AT_stmt_list
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+ .uleb128 0x2 # (DIE (0x2d) DW_TAG_subprogram)
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+ .long .LASF4 # DW_AT_name: "func"
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
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+ .byte 0x15 # DW_AT_decl_line
|
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+ # DW_AT_prototyped
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+ .quad .LFB0 # DW_AT_low_pc
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+ .quad .LFE0 # DW_AT_high_pc
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+ .uleb128 0x1 # DW_AT_frame_base
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+ .byte 0x9c # DW_OP_call_frame_cfa
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+ # DW_AT_GNU_all_call_sites
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+ .long 0x59 # DW_AT_sibling
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+ .uleb128 0x3 # (DIE (0x4a) DW_TAG_formal_parameter)
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+ .ascii "i\0" # DW_AT_name
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
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+ .byte 0x15 # DW_AT_decl_line
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+ .long 0x59 # DW_AT_type
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+ .uleb128 0x3 # DW_AT_location
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+ .byte 0x91 # DW_OP_fbreg
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+ .sleb128 -196
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+ .uleb128 0x4 # (DIE (0x57) DW_TAG_unspecified_parameters)
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+ .byte 0 # end of children of DIE 0x2d
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+ .uleb128 0x5 # (DIE (0x59) DW_TAG_base_type)
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+ .byte 0x4 # DW_AT_byte_size
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+ .byte 0x5 # DW_AT_encoding
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+ .ascii "int\0" # DW_AT_name
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+ .uleb128 0x6 # (DIE (0x60) DW_TAG_subprogram)
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+ .long .LASF5 # DW_AT_name: "marker"
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
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+ .byte 0x1b # DW_AT_decl_line
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+ # DW_AT_prototyped
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+ .quad .LFB1 # DW_AT_low_pc
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+ .quad .LFE1 # DW_AT_high_pc
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+ .uleb128 0x1 # DW_AT_frame_base
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+ .byte 0x9c # DW_OP_call_frame_cfa
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+ # DW_AT_GNU_all_call_sites
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+ .uleb128 0x7 # (DIE (0x79) DW_TAG_subprogram)
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+ # DW_AT_external
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+ .long .LASF6 # DW_AT_name: "main"
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
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+ .byte 0x20 # DW_AT_decl_line
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+ # DW_AT_prototyped
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+ .long 0x59 # DW_AT_type
|
||
+ .quad .LFB2 # DW_AT_low_pc
|
||
+ .quad .LFE2 # DW_AT_high_pc
|
||
+ .uleb128 0x1 # DW_AT_frame_base
|
||
+ .byte 0x9c # DW_OP_call_frame_cfa
|
||
+ # DW_AT_GNU_all_tail_call_sites
|
||
+ .uleb128 0x8 # (DIE (0x96) DW_TAG_variable)
|
||
+ .ascii "v\0" # DW_AT_name
|
||
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
|
||
+ .byte 0x12 # DW_AT_decl_line
|
||
+ .long 0xa9 # DW_AT_type
|
||
+ .uleb128 0x9 # DW_AT_location
|
||
+ .byte 0x3 # DW_OP_addr
|
||
+ .quad v
|
||
+ .uleb128 0x9 # (DIE (0xa9) DW_TAG_volatile_type)
|
||
+ .long 0x59 # DW_AT_type
|
||
+ .uleb128 0xa # (DIE (0xae) DW_TAG_variable)
|
||
+ .long .LASF0 # DW_AT_name: "fail"
|
||
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
|
||
+ .byte 0x12 # DW_AT_decl_line
|
||
+ .long 0xa9 # DW_AT_type
|
||
+ .uleb128 0x9 # DW_AT_location
|
||
+ .byte 0x3 # DW_OP_addr
|
||
+ .quad fail
|
||
+ .byte 0 # end of children of DIE 0xb
|
||
+ .section .debug_abbrev,"",@progbits
|
||
+.Ldebug_abbrev0:
|
||
+ .uleb128 0x1 # (abbrev code)
|
||
+ .uleb128 0x11 # (TAG: DW_TAG_compile_unit)
|
||
+ .byte 0x1 # DW_children_yes
|
||
+ .uleb128 0x25 # (DW_AT_producer)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x13 # (DW_AT_language)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x1b # (DW_AT_comp_dir)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x11 # (DW_AT_low_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x12 # (DW_AT_high_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x10 # (DW_AT_stmt_list)
|
||
+ .uleb128 0x17 # (DW_FORM_sec_offset)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x2 # (abbrev code)
|
||
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||
+ .byte 0x1 # DW_children_yes
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x27 # (DW_AT_prototyped)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .uleb128 0x11 # (DW_AT_low_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x12 # (DW_AT_high_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x40 # (DW_AT_frame_base)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .uleb128 0x1 # (DW_AT_sibling)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x3 # (abbrev code)
|
||
+ .uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0x8 # (DW_FORM_string)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x49 # (DW_AT_type)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .uleb128 0x2 # (DW_AT_location)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x4 # (abbrev code)
|
||
+ .uleb128 0x18 # (TAG: DW_TAG_unspecified_parameters)
|
||
+ .byte 0 # DW_children_no
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x5 # (abbrev code)
|
||
+ .uleb128 0x24 # (TAG: DW_TAG_base_type)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0xb # (DW_AT_byte_size)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3e # (DW_AT_encoding)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0x8 # (DW_FORM_string)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x6 # (abbrev code)
|
||
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x27 # (DW_AT_prototyped)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .uleb128 0x11 # (DW_AT_low_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x12 # (DW_AT_high_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x40 # (DW_AT_frame_base)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x7 # (abbrev code)
|
||
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x3f # (DW_AT_external)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x27 # (DW_AT_prototyped)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .uleb128 0x49 # (DW_AT_type)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .uleb128 0x11 # (DW_AT_low_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x12 # (DW_AT_high_pc)
|
||
+ .uleb128 0x1 # (DW_FORM_addr)
|
||
+ .uleb128 0x40 # (DW_AT_frame_base)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .uleb128 0x2116 # (DW_AT_GNU_all_tail_call_sites)
|
||
+ .uleb128 0x19 # (DW_FORM_flag_present)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x8 # (abbrev code)
|
||
+ .uleb128 0x34 # (TAG: DW_TAG_variable)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0x8 # (DW_FORM_string)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x49 # (DW_AT_type)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .uleb128 0x2 # (DW_AT_location)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0x9 # (abbrev code)
|
||
+ .uleb128 0x35 # (TAG: DW_TAG_volatile_type)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x49 # (DW_AT_type)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .uleb128 0xa # (abbrev code)
|
||
+ .uleb128 0x34 # (TAG: DW_TAG_variable)
|
||
+ .byte 0 # DW_children_no
|
||
+ .uleb128 0x3 # (DW_AT_name)
|
||
+ .uleb128 0xe # (DW_FORM_strp)
|
||
+ .uleb128 0x3a # (DW_AT_decl_file)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x3b # (DW_AT_decl_line)
|
||
+ .uleb128 0xb # (DW_FORM_data1)
|
||
+ .uleb128 0x49 # (DW_AT_type)
|
||
+ .uleb128 0x13 # (DW_FORM_ref4)
|
||
+ .uleb128 0x2 # (DW_AT_location)
|
||
+ .uleb128 0x18 # (DW_FORM_exprloc)
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .byte 0
|
||
+ .section .debug_aranges,"",@progbits
|
||
+ .long 0x2c # Length of Address Ranges Info
|
||
+ .value 0x2 # DWARF Version
|
||
+ .long .Ldebug_info0 # Offset of Compilation Unit Info
|
||
+ .byte 0x8 # Size of Address
|
||
+ .byte 0 # Size of Segment Descriptor
|
||
+ .value 0 # Pad to 16 byte boundary
|
||
+ .value 0
|
||
+ .quad .Ltext0 # Address
|
||
+ .quad .Letext0-.Ltext0 # Length
|
||
+ .quad 0
|
||
+ .quad 0
|
||
+ .section .debug_line,"",@progbits
|
||
+.Ldebug_line0:
|
||
+ .section .debug_str,"MS",@progbits,1
|
||
+.LASF3:
|
||
+ .string ""
|
||
+.LASF0:
|
||
+ .string "fail"
|
||
+.LASF4:
|
||
+ .string "func"
|
||
+.LASF1:
|
||
+ .string "GNU C 4.6.1 20110715 (Red Hat 4.6.1-3)"
|
||
+.LASF2:
|
||
+ .string "gdb.arch/amd64-prologue-xmm.c"
|
||
+.LASF5:
|
||
+ .string "marker"
|
||
+.LASF6:
|
||
+ .string "main"
|
||
+ .ident "GCC: (GNU) 4.6.1 20110715 (Red Hat 4.6.1-3)"
|
||
+ .section .note.GNU-stack,"",@progbits
|
||
|