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gdb/
PR 14119 * frame.c (skip_inlined_frames): Skip also TAILCALL_FRAME frames. (frame_pop): Drop also TAILCALL_FRAME frames. * infcmd.c (finish_command): Ignore also TAILCALL_FRAME frames. gdb/testsuite/ PR 14119 * gdb.arch/amd64-tailcall-ret.S: New file. * gdb.arch/amd64-tailcall-ret.c: New file. * gdb.arch/amd64-tailcall-ret.exp: New file. * gdb.reverse/amd64-tailcall-reverse.S: New file. * gdb.reverse/amd64-tailcall-reverse.c: New file. * gdb.reverse/amd64-tailcall-reverse.exp: New file.
This commit is contained in:
Jan Kratochvil
parent
acf9414f48
commit
1ab3b62c9d
@ -1,3 +1,10 @@
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2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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PR 14119
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* frame.c (skip_inlined_frames): Skip also TAILCALL_FRAME frames.
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(frame_pop): Drop also TAILCALL_FRAME frames.
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* infcmd.c (finish_command): Ignore also TAILCALL_FRAME frames.
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2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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Pedro Alves <palves@redhat.com>
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@ -310,7 +310,8 @@ fprint_frame (struct ui_file *file, struct frame_info *fi)
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static struct frame_info *
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skip_artificial_frames (struct frame_info *frame)
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{
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while (get_frame_type (frame) == INLINE_FRAME)
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while (get_frame_type (frame) == INLINE_FRAME
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|| get_frame_type (frame) == TAILCALL_FRAME)
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frame = get_prev_frame (frame);
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return frame;
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@ -815,6 +816,11 @@ frame_pop (struct frame_info *this_frame)
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if (!prev_frame)
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error (_("Cannot pop the initial frame."));
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/* Ignore TAILCALL_FRAME type frames, they were executed already before
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entering THISFRAME. */
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while (get_frame_type (prev_frame) == TAILCALL_FRAME)
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prev_frame = get_prev_frame (prev_frame);
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/* Make a copy of all the register values unwound from this frame.
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Save them in a scratch buffer so that there isn't a race between
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trying to extract the old values from the current regcache while
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@ -1777,6 +1777,11 @@ finish_command (char *arg, int from_tty)
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return;
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}
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/* Ignore TAILCALL_FRAME type frames, they were executed already before
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entering THISFRAME. */
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while (get_frame_type (frame) == TAILCALL_FRAME)
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frame = get_prev_frame (frame);
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/* Find the function we will return from. */
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function = find_pc_function (get_frame_pc (get_selected_frame (NULL)));
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@ -1,3 +1,13 @@
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2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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PR 14119
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* gdb.arch/amd64-tailcall-ret.S: New file.
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* gdb.arch/amd64-tailcall-ret.c: New file.
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* gdb.arch/amd64-tailcall-ret.exp: New file.
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* gdb.reverse/amd64-tailcall-reverse.S: New file.
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* gdb.reverse/amd64-tailcall-reverse.c: New file.
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* gdb.reverse/amd64-tailcall-reverse.exp: New file.
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2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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PR 14548
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357
gdb/testsuite/gdb.arch/amd64-tailcall-ret.S
Normal file
357
gdb/testsuite/gdb.arch/amd64-tailcall-ret.S
Normal file
@ -0,0 +1,357 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2012 Free Software Foundation, Inc.
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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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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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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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/* This source file was generated by:
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gcc -o gdb.arch/amd64-tailcall-ret.S gdb.arch/amd64-tailcall-ret.c -Wall -S -dA -O2 -g
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*/
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.file "amd64-tailcall-ret.c"
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.text
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.Ltext0:
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.p2align 4,,15
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.type g, @function
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g:
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.LFB0:
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.file 1 "gdb.arch/amd64-tailcall-ret.c"
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# gdb.arch/amd64-tailcall-ret.c:22
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.loc 1 22 0
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.cfi_startproc
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# BLOCK 2 freq:10000 seq:0
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# PRED: ENTRY [100.0%] (fallthru)
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# gdb.arch/amd64-tailcall-ret.c:23
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.loc 1 23 0
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movl $2, v(%rip)
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# SUCC: EXIT [100.0%]
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ret
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.cfi_endproc
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.LFE0:
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.size g, .-g
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.p2align 4,,15
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.type f, @function
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f:
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.LFB1:
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# gdb.arch/amd64-tailcall-ret.c:28
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.loc 1 28 0
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.cfi_startproc
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# BLOCK 2 freq:10000 seq:0
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# PRED: ENTRY [100.0%] (fallthru)
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# gdb.arch/amd64-tailcall-ret.c:29
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.loc 1 29 0
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jmp g
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# SUCC: EXIT [100.0%] (ab,sibcall)
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.LVL0:
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.cfi_endproc
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.LFE1:
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.size f, .-f
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.section .text.startup,"ax",@progbits
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.p2align 4,,15
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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-tailcall-ret.c:34
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.loc 1 34 0
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.cfi_startproc
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# BLOCK 2 freq:10000 seq:0
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# PRED: ENTRY [100.0%] (fallthru)
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# gdb.arch/amd64-tailcall-ret.c:35
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.loc 1 35 0
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call f
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.LVL1:
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# gdb.arch/amd64-tailcall-ret.c:36
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.loc 1 36 0
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call f
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.LVL2:
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# gdb.arch/amd64-tailcall-ret.c:37
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.loc 1 37 0
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movl $3, v(%rip)
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# gdb.arch/amd64-tailcall-ret.c:39
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.loc 1 39 0
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xorl %eax, %eax
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# SUCC: EXIT [100.0%]
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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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.comm v,4,4
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.text
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.Letext0:
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.section .debug_info,"",@progbits
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.Ldebug_info0:
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.long 0xd5 # Length of Compilation Unit Info
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.value 0x2 # 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 .LASF0 # DW_AT_producer: "GNU C 4.7.2 20120911 (prerelease)"
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.byte 0x1 # DW_AT_language
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.long .LASF1 # DW_AT_name: "gdb.arch/amd64-tailcall-ret.c"
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.long .LASF2 # DW_AT_comp_dir: ""
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.long .Ldebug_ranges0+0 # DW_AT_ranges
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.quad 0 # DW_AT_low_pc
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.quad 0 # DW_AT_entry_pc
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.long .Ldebug_line0 # DW_AT_stmt_list
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.uleb128 0x2 # (DIE (0x31) DW_TAG_subprogram)
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.ascii "g\0" # DW_AT_name
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.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
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.byte 0x15 # DW_AT_decl_line
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.byte 0x1 # 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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.byte 0x2 # DW_AT_frame_base
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.byte 0x77 # DW_OP_breg7
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.sleb128 8
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.byte 0x1 # DW_AT_GNU_all_call_sites
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.uleb128 0x3 # (DIE (0x4b) DW_TAG_subprogram)
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.ascii "f\0" # DW_AT_name
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.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
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.byte 0x1b # DW_AT_decl_line
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.byte 0x1 # 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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.byte 0x2 # DW_AT_frame_base
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.byte 0x77 # DW_OP_breg7
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.sleb128 8
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.byte 0x1 # DW_AT_GNU_all_call_sites
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.long 0x78 # DW_AT_sibling
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.uleb128 0x4 # (DIE (0x69) DW_TAG_GNU_call_site)
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.quad .LVL0 # DW_AT_low_pc
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.byte 0x1 # DW_AT_GNU_tail_call
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.long 0x31 # DW_AT_abstract_origin
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.byte 0 # end of children of DIE 0x4b
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.uleb128 0x5 # (DIE (0x78) DW_TAG_subprogram)
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.byte 0x1 # DW_AT_external
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.long .LASF3 # DW_AT_name: "main"
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.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
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.byte 0x21 # DW_AT_decl_line
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.byte 0x1 # DW_AT_prototyped
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.long 0xb8 # DW_AT_type
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.quad .LFB2 # DW_AT_low_pc
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.quad .LFE2 # DW_AT_high_pc
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.byte 0x2 # DW_AT_frame_base
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.byte 0x77 # DW_OP_breg7
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.sleb128 8
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.byte 0x1 # DW_AT_GNU_all_call_sites
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.long 0xb8 # DW_AT_sibling
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.uleb128 0x6 # (DIE (0x9d) DW_TAG_GNU_call_site)
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.quad .LVL1 # DW_AT_low_pc
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.long 0x4b # DW_AT_abstract_origin
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.uleb128 0x6 # (DIE (0xaa) DW_TAG_GNU_call_site)
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.quad .LVL2 # DW_AT_low_pc
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.long 0x4b # DW_AT_abstract_origin
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.byte 0 # end of children of DIE 0x78
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.uleb128 0x7 # (DIE (0xb8) 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 0x8 # (DIE (0xbf) DW_TAG_variable)
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.ascii "v\0" # DW_AT_name
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.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
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.byte 0x12 # DW_AT_decl_line
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.long 0xd3 # DW_AT_type
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.byte 0x1 # DW_AT_external
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.byte 0x9 # DW_AT_location
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.byte 0x3 # DW_OP_addr
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.quad v
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.uleb128 0x9 # (DIE (0xd3) DW_TAG_volatile_type)
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.long 0xb8 # DW_AT_type
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.byte 0 # end of children of DIE 0xb
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.section .debug_abbrev,"",@progbits
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.Ldebug_abbrev0:
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.uleb128 0x1 # (abbrev code)
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.uleb128 0x11 # (TAG: DW_TAG_compile_unit)
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.byte 0x1 # DW_children_yes
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.uleb128 0x25 # (DW_AT_producer)
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.uleb128 0xe # (DW_FORM_strp)
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.uleb128 0x13 # (DW_AT_language)
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.uleb128 0xb # (DW_FORM_data1)
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.uleb128 0x3 # (DW_AT_name)
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.uleb128 0xe # (DW_FORM_strp)
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.uleb128 0x1b # (DW_AT_comp_dir)
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.uleb128 0xe # (DW_FORM_strp)
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.uleb128 0x55 # (DW_AT_ranges)
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.uleb128 0x6 # (DW_FORM_data4)
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.uleb128 0x11 # (DW_AT_low_pc)
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.uleb128 0x1 # (DW_FORM_addr)
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.uleb128 0x52 # (DW_AT_entry_pc)
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||||
.uleb128 0x1 # (DW_FORM_addr)
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.uleb128 0x10 # (DW_AT_stmt_list)
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.uleb128 0x6 # (DW_FORM_data4)
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.byte 0
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.byte 0
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.uleb128 0x2 # (abbrev code)
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.uleb128 0x2e # (TAG: DW_TAG_subprogram)
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.byte 0 # DW_children_no
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.uleb128 0x3 # (DW_AT_name)
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.uleb128 0x8 # (DW_FORM_string)
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.uleb128 0x3a # (DW_AT_decl_file)
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.uleb128 0xb # (DW_FORM_data1)
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.uleb128 0x3b # (DW_AT_decl_line)
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.uleb128 0xb # (DW_FORM_data1)
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.uleb128 0x27 # (DW_AT_prototyped)
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||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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)
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||||
.uleb128 0xa # (DW_FORM_block1)
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||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
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||||
.byte 0
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||||
.byte 0
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||||
.uleb128 0x3 # (abbrev code)
|
||||
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
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||||
.byte 0x1 # DW_children_yes
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||||
.uleb128 0x3 # (DW_AT_name)
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||||
.uleb128 0x8 # (DW_FORM_string)
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||||
.uleb128 0x3a # (DW_AT_decl_file)
|
||||
.uleb128 0xb # (DW_FORM_data1)
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||||
.uleb128 0x3b # (DW_AT_decl_line)
|
||||
.uleb128 0xb # (DW_FORM_data1)
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||||
.uleb128 0x27 # (DW_AT_prototyped)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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 0xa # (DW_FORM_block1)
|
||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x1 # (DW_AT_sibling)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x4 # (abbrev code)
|
||||
.uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
|
||||
.byte 0 # DW_children_no
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x2115 # (DW_AT_GNU_tail_call)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x31 # (DW_AT_abstract_origin)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x5 # (abbrev code)
|
||||
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||||
.byte 0x1 # DW_children_yes
|
||||
.uleb128 0x3f # (DW_AT_external)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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 0xc # (DW_FORM_flag)
|
||||
.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 0xa # (DW_FORM_block1)
|
||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x1 # (DW_AT_sibling)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x6 # (abbrev code)
|
||||
.uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
|
||||
.byte 0 # DW_children_no
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x31 # (DW_AT_abstract_origin)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x7 # (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 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 0x3f # (DW_AT_external)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x2 # (DW_AT_location)
|
||||
.uleb128 0xa # (DW_FORM_block1)
|
||||
.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
|
||||
.byte 0
|
||||
.section .debug_aranges,"",@progbits
|
||||
.long 0x3c # 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 .LFB2 # Address
|
||||
.quad .LFE2-.LFB2 # Length
|
||||
.quad 0
|
||||
.quad 0
|
||||
.section .debug_ranges,"",@progbits
|
||||
.Ldebug_ranges0:
|
||||
.quad .Ltext0 # Offset 0
|
||||
.quad .Letext0
|
||||
.quad .LFB2 # Offset 0x10
|
||||
.quad .LFE2
|
||||
.quad 0
|
||||
.quad 0
|
||||
.section .debug_line,"",@progbits
|
||||
.Ldebug_line0:
|
||||
.section .debug_str,"MS",@progbits,1
|
||||
.LASF0:
|
||||
.string "GNU C 4.7.2 20120911 (prerelease)"
|
||||
.LASF1:
|
||||
.string "gdb.arch/amd64-tailcall-ret.c"
|
||||
.LASF2:
|
||||
.string ""
|
||||
.LASF3:
|
||||
.string "main"
|
||||
.ident "GCC: (GNU) 4.7.2 20120911 (prerelease)"
|
||||
.section .note.GNU-stack,"",@progbits
|
||||
39
gdb/testsuite/gdb.arch/amd64-tailcall-ret.c
Normal file
39
gdb/testsuite/gdb.arch/amd64-tailcall-ret.c
Normal file
@ -0,0 +1,39 @@
|
||||
/* This testcase is part of GDB, the GNU debugger.
|
||||
|
||||
Copyright 2012 Free Software Foundation, Inc.
|
||||
|
||||
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 <http://www.gnu.org/licenses/>. */
|
||||
|
||||
volatile int v;
|
||||
|
||||
static __attribute__ ((noinline, noclone)) void
|
||||
g (void)
|
||||
{
|
||||
v = 2;
|
||||
}
|
||||
|
||||
static __attribute__ ((noinline, noclone)) void
|
||||
f (void)
|
||||
{
|
||||
g ();
|
||||
}
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
f (); /* first */
|
||||
f (); /* second */
|
||||
v = 3;
|
||||
return 0;
|
||||
}
|
||||
44
gdb/testsuite/gdb.arch/amd64-tailcall-ret.exp
Normal file
44
gdb/testsuite/gdb.arch/amd64-tailcall-ret.exp
Normal file
@ -0,0 +1,44 @@
|
||||
# Copyright (C) 2012 Free Software Foundation, Inc.
|
||||
#
|
||||
# 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
set opts {}
|
||||
standard_testfile .S
|
||||
|
||||
if [info exists COMPILE] {
|
||||
# make check RUNTESTFLAGS="gdb.arch/amd64-tailcall-ret.exp COMPILE=1"
|
||||
standard_testfile
|
||||
lappend opts debug optimize=-O2
|
||||
} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
|
||||
verbose "Skipping ${testfile}."
|
||||
return
|
||||
}
|
||||
|
||||
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
|
||||
return -1
|
||||
}
|
||||
|
||||
if ![runto_main] {
|
||||
return -1
|
||||
}
|
||||
|
||||
gdb_breakpoint "g"
|
||||
gdb_continue_to_breakpoint "g" ".* v = 2;"
|
||||
|
||||
gdb_test "return" { f \(\); /\* second \*/} "return" \
|
||||
{Make g return now\? \(y or n\) } "y"
|
||||
|
||||
gdb_continue_to_breakpoint "g" ".* v = 2;"
|
||||
|
||||
gdb_test "finish" " v = 3;"
|
||||
353
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.S
Normal file
353
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.S
Normal file
@ -0,0 +1,353 @@
|
||||
/* This testcase is part of GDB, the GNU debugger.
|
||||
|
||||
Copyright 2012 Free Software Foundation, Inc.
|
||||
|
||||
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 <http://www.gnu.org/licenses/>. */
|
||||
|
||||
/* This source file was generated by:
|
||||
gcc -o gdb.reverse/amd64-tailcall-reverse.S gdb.reverse/amd64-tailcall-reverse.c -Wall -S -dA -O2 -g
|
||||
*/
|
||||
|
||||
.file "amd64-tailcall-reverse.c"
|
||||
.text
|
||||
.Ltext0:
|
||||
.p2align 4,,15
|
||||
.type g, @function
|
||||
g:
|
||||
.LFB0:
|
||||
.file 1 "gdb.reverse/amd64-tailcall-reverse.c"
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:22
|
||||
.loc 1 22 0
|
||||
.cfi_startproc
|
||||
# BLOCK 2 freq:10000 seq:0
|
||||
# PRED: ENTRY [100.0%] (fallthru)
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:23
|
||||
.loc 1 23 0
|
||||
movl $2, v(%rip)
|
||||
# SUCC: EXIT [100.0%]
|
||||
ret
|
||||
.cfi_endproc
|
||||
.LFE0:
|
||||
.size g, .-g
|
||||
.p2align 4,,15
|
||||
.type f, @function
|
||||
f:
|
||||
.LFB1:
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:28
|
||||
.loc 1 28 0
|
||||
.cfi_startproc
|
||||
# BLOCK 2 freq:10000 seq:0
|
||||
# PRED: ENTRY [100.0%] (fallthru)
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:29
|
||||
.loc 1 29 0
|
||||
jmp g
|
||||
# SUCC: EXIT [100.0%] (ab,sibcall)
|
||||
.LVL0:
|
||||
.cfi_endproc
|
||||
.LFE1:
|
||||
.size f, .-f
|
||||
.section .text.startup,"ax",@progbits
|
||||
.p2align 4,,15
|
||||
.globl main
|
||||
.type main, @function
|
||||
main:
|
||||
.LFB2:
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:34
|
||||
.loc 1 34 0
|
||||
.cfi_startproc
|
||||
# BLOCK 2 freq:10000 seq:0
|
||||
# PRED: ENTRY [100.0%] (fallthru)
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:35
|
||||
.loc 1 35 0
|
||||
movl $1, v(%rip)
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:36
|
||||
.loc 1 36 0
|
||||
call f
|
||||
.LVL1:
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:37
|
||||
.loc 1 37 0
|
||||
movl $3, v(%rip)
|
||||
# gdb.reverse/amd64-tailcall-reverse.c:39
|
||||
.loc 1 39 0
|
||||
xorl %eax, %eax
|
||||
# SUCC: EXIT [100.0%]
|
||||
ret
|
||||
.cfi_endproc
|
||||
.LFE2:
|
||||
.size main, .-main
|
||||
.comm v,4,4
|
||||
.text
|
||||
.Letext0:
|
||||
.section .debug_info,"",@progbits
|
||||
.Ldebug_info0:
|
||||
.long 0xc8 # Length of Compilation Unit Info
|
||||
.value 0x2 # DWARF version number
|
||||
.long .Ldebug_abbrev0 # Offset Into Abbrev. Section
|
||||
.byte 0x8 # Pointer Size (in bytes)
|
||||
.uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
|
||||
.long .LASF0 # DW_AT_producer: "GNU C 4.7.2 20120911 (prerelease)"
|
||||
.byte 0x1 # DW_AT_language
|
||||
.long .LASF1 # DW_AT_name: "gdb.reverse/amd64-tailcall-reverse.c"
|
||||
.long .LASF2 # DW_AT_comp_dir: ""
|
||||
.long .Ldebug_ranges0+0 # DW_AT_ranges
|
||||
.quad 0 # DW_AT_low_pc
|
||||
.quad 0 # DW_AT_entry_pc
|
||||
.long .Ldebug_line0 # DW_AT_stmt_list
|
||||
.uleb128 0x2 # (DIE (0x31) DW_TAG_subprogram)
|
||||
.ascii "g\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (gdb.reverse/amd64-tailcall-reverse.c)
|
||||
.byte 0x15 # DW_AT_decl_line
|
||||
.byte 0x1 # DW_AT_prototyped
|
||||
.quad .LFB0 # DW_AT_low_pc
|
||||
.quad .LFE0 # DW_AT_high_pc
|
||||
.byte 0x2 # DW_AT_frame_base
|
||||
.byte 0x77 # DW_OP_breg7
|
||||
.sleb128 8
|
||||
.byte 0x1 # DW_AT_GNU_all_call_sites
|
||||
.uleb128 0x3 # (DIE (0x4b) DW_TAG_subprogram)
|
||||
.ascii "f\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (gdb.reverse/amd64-tailcall-reverse.c)
|
||||
.byte 0x1b # DW_AT_decl_line
|
||||
.byte 0x1 # DW_AT_prototyped
|
||||
.quad .LFB1 # DW_AT_low_pc
|
||||
.quad .LFE1 # DW_AT_high_pc
|
||||
.byte 0x2 # DW_AT_frame_base
|
||||
.byte 0x77 # DW_OP_breg7
|
||||
.sleb128 8
|
||||
.byte 0x1 # DW_AT_GNU_all_call_sites
|
||||
.long 0x78 # DW_AT_sibling
|
||||
.uleb128 0x4 # (DIE (0x69) DW_TAG_GNU_call_site)
|
||||
.quad .LVL0 # DW_AT_low_pc
|
||||
.byte 0x1 # DW_AT_GNU_tail_call
|
||||
.long 0x31 # DW_AT_abstract_origin
|
||||
.byte 0 # end of children of DIE 0x4b
|
||||
.uleb128 0x5 # (DIE (0x78) DW_TAG_subprogram)
|
||||
.byte 0x1 # DW_AT_external
|
||||
.long .LASF3 # DW_AT_name: "main"
|
||||
.byte 0x1 # DW_AT_decl_file (gdb.reverse/amd64-tailcall-reverse.c)
|
||||
.byte 0x21 # DW_AT_decl_line
|
||||
.byte 0x1 # DW_AT_prototyped
|
||||
.long 0xab # DW_AT_type
|
||||
.quad .LFB2 # DW_AT_low_pc
|
||||
.quad .LFE2 # DW_AT_high_pc
|
||||
.byte 0x2 # DW_AT_frame_base
|
||||
.byte 0x77 # DW_OP_breg7
|
||||
.sleb128 8
|
||||
.byte 0x1 # DW_AT_GNU_all_call_sites
|
||||
.long 0xab # DW_AT_sibling
|
||||
.uleb128 0x6 # (DIE (0x9d) DW_TAG_GNU_call_site)
|
||||
.quad .LVL1 # DW_AT_low_pc
|
||||
.long 0x4b # DW_AT_abstract_origin
|
||||
.byte 0 # end of children of DIE 0x78
|
||||
.uleb128 0x7 # (DIE (0xab) DW_TAG_base_type)
|
||||
.byte 0x4 # DW_AT_byte_size
|
||||
.byte 0x5 # DW_AT_encoding
|
||||
.ascii "int\0" # DW_AT_name
|
||||
.uleb128 0x8 # (DIE (0xb2) DW_TAG_variable)
|
||||
.ascii "v\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (gdb.reverse/amd64-tailcall-reverse.c)
|
||||
.byte 0x12 # DW_AT_decl_line
|
||||
.long 0xc6 # DW_AT_type
|
||||
.byte 0x1 # DW_AT_external
|
||||
.byte 0x9 # DW_AT_location
|
||||
.byte 0x3 # DW_OP_addr
|
||||
.quad v
|
||||
.uleb128 0x9 # (DIE (0xc6) DW_TAG_volatile_type)
|
||||
.long 0xab # DW_AT_type
|
||||
.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 0x55 # (DW_AT_ranges)
|
||||
.uleb128 0x6 # (DW_FORM_data4)
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x52 # (DW_AT_entry_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x10 # (DW_AT_stmt_list)
|
||||
.uleb128 0x6 # (DW_FORM_data4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x2 # (abbrev code)
|
||||
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||||
.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 0x27 # (DW_AT_prototyped)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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 0xa # (DW_FORM_block1)
|
||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x3 # (abbrev code)
|
||||
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||||
.byte 0x1 # DW_children_yes
|
||||
.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 0x27 # (DW_AT_prototyped)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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 0xa # (DW_FORM_block1)
|
||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x1 # (DW_AT_sibling)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x4 # (abbrev code)
|
||||
.uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
|
||||
.byte 0 # DW_children_no
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x2115 # (DW_AT_GNU_tail_call)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x31 # (DW_AT_abstract_origin)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x5 # (abbrev code)
|
||||
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
|
||||
.byte 0x1 # DW_children_yes
|
||||
.uleb128 0x3f # (DW_AT_external)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.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 0xc # (DW_FORM_flag)
|
||||
.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 0xa # (DW_FORM_block1)
|
||||
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x1 # (DW_AT_sibling)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x6 # (abbrev code)
|
||||
.uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
|
||||
.byte 0 # DW_children_no
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x31 # (DW_AT_abstract_origin)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0
|
||||
.byte 0
|
||||
.uleb128 0x7 # (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 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 0x3f # (DW_AT_external)
|
||||
.uleb128 0xc # (DW_FORM_flag)
|
||||
.uleb128 0x2 # (DW_AT_location)
|
||||
.uleb128 0xa # (DW_FORM_block1)
|
||||
.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
|
||||
.byte 0
|
||||
.section .debug_aranges,"",@progbits
|
||||
.long 0x3c # 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 .LFB2 # Address
|
||||
.quad .LFE2-.LFB2 # Length
|
||||
.quad 0
|
||||
.quad 0
|
||||
.section .debug_ranges,"",@progbits
|
||||
.Ldebug_ranges0:
|
||||
.quad .Ltext0 # Offset 0
|
||||
.quad .Letext0
|
||||
.quad .LFB2 # Offset 0x10
|
||||
.quad .LFE2
|
||||
.quad 0
|
||||
.quad 0
|
||||
.section .debug_line,"",@progbits
|
||||
.Ldebug_line0:
|
||||
.section .debug_str,"MS",@progbits,1
|
||||
.LASF3:
|
||||
.string "main"
|
||||
.LASF0:
|
||||
.string "GNU C 4.7.2 20120911 (prerelease)"
|
||||
.LASF1:
|
||||
.string "gdb.reverse/amd64-tailcall-reverse.c"
|
||||
.LASF2:
|
||||
.string ""
|
||||
.ident "GCC: (GNU) 4.7.2 20120911 (prerelease)"
|
||||
.section .note.GNU-stack,"",@progbits
|
||||
39
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.c
Normal file
39
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.c
Normal file
@ -0,0 +1,39 @@
|
||||
/* This testcase is part of GDB, the GNU debugger.
|
||||
|
||||
Copyright 2012 Free Software Foundation, Inc.
|
||||
|
||||
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 <http://www.gnu.org/licenses/>. */
|
||||
|
||||
volatile int v;
|
||||
|
||||
static __attribute__ ((noinline, noclone)) void
|
||||
g (void)
|
||||
{
|
||||
v = 2;
|
||||
}
|
||||
|
||||
static __attribute__ ((noinline, noclone)) void
|
||||
f (void)
|
||||
{
|
||||
g ();
|
||||
}
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
v = 1;
|
||||
f ();
|
||||
v = 3;
|
||||
return 0;
|
||||
}
|
||||
49
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.exp
Normal file
49
gdb/testsuite/gdb.reverse/amd64-tailcall-reverse.exp
Normal file
@ -0,0 +1,49 @@
|
||||
# Copyright (C) 2012 Free Software Foundation, Inc.
|
||||
#
|
||||
# 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
if ![supports_reverse] {
|
||||
return
|
||||
}
|
||||
|
||||
set opts {}
|
||||
standard_testfile .S
|
||||
|
||||
if [info exists COMPILE] {
|
||||
# make check RUNTESTFLAGS="gdb.reverse/amd64-tailcall-reverse.exp COMPILE=1"
|
||||
standard_testfile
|
||||
lappend opts debug optimize=-O2
|
||||
} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
|
||||
verbose "Skipping ${testfile}."
|
||||
return
|
||||
}
|
||||
|
||||
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
|
||||
return -1
|
||||
}
|
||||
|
||||
if ![runto_main] {
|
||||
return -1
|
||||
}
|
||||
|
||||
if [supports_process_record] {
|
||||
gdb_test_no_output "record"
|
||||
}
|
||||
|
||||
gdb_test "next" {f \(\);} "next to f"
|
||||
gdb_test "next" {v = 3;} "next to v = 3"
|
||||
|
||||
# FAIL was:
|
||||
# 29 g ();
|
||||
gdb_test "reverse-next" {f \(\);}
|
||||
Loading…
Reference in New Issue
Block a user