diff options
| -rw-r--r-- | gdb/ChangeLog | 9 | ||||
| -rw-r--r-- | gdb/dwarf2loc.c | 4 | ||||
| -rw-r--r-- | gdb/dwarf2read.c | 15 | ||||
| -rw-r--r-- | gdb/testsuite/ChangeLog | 9 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/amd64-tailcall-cxx.exp | 36 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.S | 367 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.cc | 32 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.S | 276 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.cc | 24 |
9 files changed, 768 insertions, 4 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 4680615..c0f1994 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,12 @@ +2013-03-10 Jan Kratochvil <jan.kratochvil@redhat.com> + + Fix entry-values in C++ across CUs. + * dwarf2loc.c (call_site_to_target_addr) <FIELD_LOC_KIND_PHYSNAME>: Use + lookup_minimal_symbol. Add a comment. + * dwarf2read.c + (read_call_site_scope) <is_ref_attr> <die_is_declaration>: Prefer + DW_AT_linkage_name. + 2013-03-08 Yao Qi <yao@codesourcery.com> * tracepoint.c (_initialize_tracepoint): Indent the code. diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c index 8a61ae6..f300df2 100644 --- a/gdb/dwarf2loc.c +++ b/gdb/dwarf2loc.c @@ -542,7 +542,9 @@ call_site_to_target_addr (struct gdbarch *call_site_gdbarch, struct minimal_symbol *msym; physname = FIELD_STATIC_PHYSNAME (call_site->target); - msym = lookup_minimal_symbol_text (physname, NULL); + + /* Handle both the mangled and demangled PHYSNAME. */ + msym = lookup_minimal_symbol (physname, NULL, NULL); if (msym == NULL) { msym = lookup_minimal_symbol_by_pc (call_site->pc - 1); diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index df6298b..faee1a8 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -9812,9 +9812,18 @@ read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu) gdb_assert (target_cu->objfile == objfile); if (die_is_declaration (target_die, target_cu)) { - const char *target_physname; - - target_physname = dwarf2_physname (NULL, target_die, target_cu); + const char *target_physname = NULL; + struct attribute *target_attr; + + /* Prefer the mangled name; otherwise compute the demangled one. */ + target_attr = dwarf2_attr (target_die, DW_AT_linkage_name, target_cu); + if (target_attr == NULL) + target_attr = dwarf2_attr (target_die, DW_AT_MIPS_linkage_name, + target_cu); + if (target_attr != NULL && DW_STRING (target_attr) != NULL) + target_physname = DW_STRING (target_attr); + else + target_physname = dwarf2_physname (NULL, target_die, target_cu); if (target_physname == NULL) complaint (&symfile_complaints, _("DW_AT_GNU_call_site_target target DIE has invalid " diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 682814d..81421eb 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,12 @@ +2013-03-10 Jan Kratochvil <jan.kratochvil@redhat.com> + + Fix entry-values in C++ across CUs. + * gdb.arch/amd64-tailcall-cxx.exp: New file. + * gdb.arch/amd64-tailcall-cxx1.S: New file. + * gdb.arch/amd64-tailcall-cxx1.cc: New file. + * gdb.arch/amd64-tailcall-cxx2.S: New file. + * gdb.arch/amd64-tailcall-cxx2.cc: New file. + 2013-03-08 Stan Shebs <stan@codesourcery.com> Hafiz Abid Qadeer <abidh@codesourcery.com> diff --git a/gdb/testsuite/gdb.arch/amd64-tailcall-cxx.exp b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx.exp new file mode 100644 index 0000000..db2ab3c --- /dev/null +++ b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx.exp @@ -0,0 +1,36 @@ +# Copyright (C) 2012-2013 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 amd64-tailcall-cxx1.S amd64-tailcall-cxx2.S + +if [info exists COMPILE] { + # make check RUNTESTFLAGS="gdb.arch/amd64-tailcall-cxx.exp COMPILE=1" + standard_testfile amd64-tailcall-cxx1.cc amd64-tailcall-cxx2.cc + lappend opts debug optimize=-O2 +} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } { + verbose "Skipping ${testfile}." + return +} + +if { [prepare_for_testing ${testfile}.exp ${testfile} "${srcfile} ${srcfile2}" $opts] } { + return -1 +} + +if ![runto g] { + return -1 +} + +gdb_test "bt" "\r\n#0 +g \\(x=x@entry=2\\) at \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in f \\(x=x@entry=1\\) at \[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in main .*" diff --git a/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.S b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.S new file mode 100644 index 0000000..d988446 --- /dev/null +++ b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.S @@ -0,0 +1,367 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2012-2013 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: + g++ -o gdb.arch/amd64-tailcall-cxx1.S gdb.arch/amd64-tailcall-cxx1.cc -Wall -S -dA -O2 -g + Fedora GCC was used here to also test the case of missing DW_AT_linkage_name. + */ + + .file "amd64-tailcall-cxx1.cc" + .text +.Ltext0: + .p2align 4,,15 + .globl _Z1gi + .type _Z1gi, @function +_Z1gi: +.LFB0: + .file 1 "gdb.arch/amd64-tailcall-cxx1.cc" + # gdb.arch/amd64-tailcall-cxx1.cc:22 + .loc 1 22 0 + .cfi_startproc +.LVL0: +# BLOCK 2 freq:10000 seq:0 +# PRED: ENTRY [100.0%] (FALLTHRU) + # gdb.arch/amd64-tailcall-cxx1.cc:23 + .loc 1 23 0 + movl %edi, v(%rip) +# SUCC: EXIT [100.0%] + ret + .cfi_endproc +.LFE0: + .size _Z1gi, .-_Z1gi + .section .text.startup,"ax",@progbits + .p2align 4,,15 + .globl main + .type main, @function +main: +.LFB1: + # gdb.arch/amd64-tailcall-cxx1.cc:30 + .loc 1 30 0 + .cfi_startproc +# BLOCK 2 freq:10000 seq:0 +# PRED: ENTRY [100.0%] (FALLTHRU) + subq $8, %rsp + .cfi_def_cfa_offset 16 + # gdb.arch/amd64-tailcall-cxx1.cc:31 + .loc 1 31 0 + movl $1, %edi + call _Z1fi +.LVL1: + # gdb.arch/amd64-tailcall-cxx1.cc:32 + .loc 1 32 0 + xorl %eax, %eax + addq $8, %rsp + .cfi_def_cfa_offset 8 +# SUCC: EXIT [100.0%] + ret + .cfi_endproc +.LFE1: + .size main, .-main + .globl v + .bss + .align 4 + .type v, @object + .size v, 4 +v: + .zero 4 + .text +.Letext0: + .section .debug_info,"",@progbits +.Ldebug_info0: + .long 0xb4 # Length of Compilation Unit Info + .value 0x4 # 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 .LASF1 # DW_AT_producer: "GNU C++ 4.8.0 20130220 (Red Hat 4.8.0-0.14) -mtune=generic -march=x86-64 -g -O2" + .byte 0x4 # DW_AT_language + .long .LASF2 # DW_AT_name: "gdb.arch/amd64-tailcall-cxx1.cc" + .long .LASF3 # DW_AT_comp_dir: "" + .long .Ldebug_ranges0+0 # DW_AT_ranges + .quad 0 # DW_AT_low_pc + .long .Ldebug_line0 # DW_AT_stmt_list + .uleb128 0x2 # (DIE (0x29) DW_TAG_subprogram) + # DW_AT_external + .ascii "g\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx1.cc) + .byte 0x15 # DW_AT_decl_line + .long .LASF4 # DW_AT_linkage_name: "_Z1gi" + .quad .LFB0 # DW_AT_low_pc + .quad .LFE0-.LFB0 # DW_AT_high_pc + .uleb128 0x1 # DW_AT_frame_base + .byte 0x9c # DW_OP_call_frame_cfa + # DW_AT_GNU_all_call_sites + .long 0x54 # DW_AT_sibling + .uleb128 0x3 # (DIE (0x48) DW_TAG_formal_parameter) + .ascii "x\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx1.cc) + .byte 0x15 # DW_AT_decl_line + .long 0x54 # DW_AT_type + .uleb128 0x1 # DW_AT_location + .byte 0x55 # DW_OP_reg5 + .byte 0 # end of children of DIE 0x29 + .uleb128 0x4 # (DIE (0x54) DW_TAG_base_type) + .byte 0x4 # DW_AT_byte_size + .byte 0x5 # DW_AT_encoding + .ascii "int\0" # DW_AT_name + .uleb128 0x5 # (DIE (0x5b) DW_TAG_subprogram) + # DW_AT_external + .long .LASF0 # DW_AT_name: "main" + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx1.cc) + .byte 0x1d # DW_AT_decl_line + .long 0x54 # DW_AT_type + .quad .LFB1 # DW_AT_low_pc + .quad .LFE1-.LFB1 # DW_AT_high_pc + .uleb128 0x1 # DW_AT_frame_base + .byte 0x9c # DW_OP_call_frame_cfa + # DW_AT_GNU_all_call_sites + .long 0x90 # DW_AT_sibling + .uleb128 0x6 # (DIE (0x7c) DW_TAG_GNU_call_site) + .quad .LVL1 # DW_AT_low_pc + .long 0xa8 # DW_AT_abstract_origin + .uleb128 0x7 # (DIE (0x89) DW_TAG_GNU_call_site_parameter) + .uleb128 0x1 # DW_AT_location + .byte 0x55 # DW_OP_reg5 + .uleb128 0x1 # DW_AT_GNU_call_site_value + .byte 0x31 # DW_OP_lit1 + .byte 0 # end of children of DIE 0x7c + .byte 0 # end of children of DIE 0x5b + .uleb128 0x8 # (DIE (0x90) DW_TAG_variable) + .ascii "v\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx1.cc) + .byte 0x12 # DW_AT_decl_line + .long 0xa3 # DW_AT_type + # DW_AT_external + .uleb128 0x9 # DW_AT_location + .byte 0x3 # DW_OP_addr + .quad v + .uleb128 0x9 # (DIE (0xa3) DW_TAG_volatile_type) + .long 0x54 # DW_AT_type + .uleb128 0xa # (DIE (0xa8) DW_TAG_subprogram) + # DW_AT_external + .ascii "f\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx1.cc) + .byte 0x1a # DW_AT_decl_line + .long .LASF5 # DW_AT_linkage_name: "_Z1fi" + # DW_AT_declaration + .uleb128 0xb # (DIE (0xb1) DW_TAG_formal_parameter) + .long 0x54 # DW_AT_type + .byte 0 # end of children of DIE 0xa8 + .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 0x17 # (DW_FORM_sec_offset) + .uleb128 0x11 # (DW_AT_low_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 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .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 0x6e # (DW_AT_linkage_name) + .uleb128 0xe # (DW_FORM_strp) + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1 # (DW_FORM_addr) + .uleb128 0x12 # (DW_AT_high_pc) + .uleb128 0x7 # (DW_FORM_data8) + .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 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 0x5 # (abbrev code) + .uleb128 0x2e # (TAG: DW_TAG_subprogram) + .byte 0x1 # DW_children_yes + .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 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 0x7 # (DW_FORM_data8) + .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 0x6 # (abbrev code) + .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site) + .byte 0x1 # DW_children_yes + .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 0x410a # (TAG: DW_TAG_GNU_call_site_parameter) + .byte 0 # DW_children_no + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x18 # (DW_FORM_exprloc) + .uleb128 0x2111 # (DW_AT_GNU_call_site_value) + .uleb128 0x18 # (DW_FORM_exprloc) + .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 0x19 # (DW_FORM_flag_present) + .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 0x2e # (TAG: DW_TAG_subprogram) + .byte 0x1 # DW_children_yes + .uleb128 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .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 0x6e # (DW_AT_linkage_name) + .uleb128 0xe # (DW_FORM_strp) + .uleb128 0x3c # (DW_AT_declaration) + .uleb128 0x19 # (DW_FORM_flag_present) + .byte 0 + .byte 0 + .uleb128 0xb # (abbrev code) + .uleb128 0x5 # (TAG: DW_TAG_formal_parameter) + .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 .LFB1 # Address + .quad .LFE1-.LFB1 # Length + .quad 0 + .quad 0 + .section .debug_ranges,"",@progbits +.Ldebug_ranges0: + .quad .Ltext0 # Offset 0 + .quad .Letext0 + .quad .LFB1 # Offset 0x10 + .quad .LFE1 + .quad 0 + .quad 0 + .section .debug_line,"",@progbits +.Ldebug_line0: + .section .debug_str,"MS",@progbits,1 +.LASF4: + .string "_Z1gi" +.LASF3: + .string "" +.LASF2: + .string "gdb.arch/amd64-tailcall-cxx1.cc" +.LASF1: + .string "GNU C++ 4.8.0 20130220 (Red Hat 4.8.0-0.14) -mtune=generic -march=x86-64 -g -O2" +.LASF0: + .string "main" +.LASF5: + .string "_Z1fi" + .ident "GCC: (GNU) 4.8.0 20130220 (Red Hat 4.8.0-0.14)" + .section .note.GNU-stack,"",@progbits diff --git a/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.cc b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.cc new file mode 100644 index 0000000..7af9936 --- /dev/null +++ b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx1.cc @@ -0,0 +1,32 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2013 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; + +__attribute__ ((noinline, noclone)) void +g (int x) +{ + v = x; +} + +extern void f (int x); + +int +main () +{ + f (1); +} diff --git a/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.S b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.S new file mode 100644 index 0000000..8a26d6f --- /dev/null +++ b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.S @@ -0,0 +1,276 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2012-2013 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: + g++ -o gdb.arch/amd64-tailcall-cxx2.S gdb.arch/amd64-tailcall-cxx2.cc -Wall -S -dA -O2 -g + Fedora GCC was used here to also test the case of missing DW_AT_linkage_name. + */ + + .file "amd64-tailcall-cxx2.cc" + .text +.Ltext0: + .p2align 4,,15 + .globl _Z1fi + .type _Z1fi, @function +_Z1fi: +.LFB0: + .file 1 "gdb.arch/amd64-tailcall-cxx2.cc" + # gdb.arch/amd64-tailcall-cxx2.cc:22 + .loc 1 22 0 + .cfi_startproc +.LVL0: +# BLOCK 2 freq:10000 seq:0 +# PRED: ENTRY [100.0%] (FALLTHRU) + # gdb.arch/amd64-tailcall-cxx2.cc:23 + .loc 1 23 0 + addl $1, %edi +.LVL1: + jmp _Z1gi +.LVL2: +# SUCC: EXIT [100.0%] (ABNORMAL,SIBCALL) + .cfi_endproc +.LFE0: + .size _Z1fi, .-_Z1fi +.Letext0: + .section .debug_info,"",@progbits +.Ldebug_info0: + .long 0x84 # Length of Compilation Unit Info + .value 0x4 # 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++ 4.8.0 20130220 (Red Hat 4.8.0-0.14) -mtune=generic -march=x86-64 -g -O2" + .byte 0x4 # DW_AT_language + .long .LASF1 # DW_AT_name: "gdb.arch/amd64-tailcall-cxx2.cc" + .long .LASF2 # DW_AT_comp_dir: "" + .quad .Ltext0 # DW_AT_low_pc + .quad .Letext0-.Ltext0 # DW_AT_high_pc + .long .Ldebug_line0 # DW_AT_stmt_list + .uleb128 0x2 # (DIE (0x2d) DW_TAG_subprogram) + # DW_AT_external + .ascii "f\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx2.cc) + .byte 0x15 # DW_AT_decl_line + .long .LASF3 # DW_AT_linkage_name: "_Z1fi" + .quad .LFB0 # DW_AT_low_pc + .quad .LFE0-.LFB0 # DW_AT_high_pc + .uleb128 0x1 # DW_AT_frame_base + .byte 0x9c # DW_OP_call_frame_cfa + # DW_AT_GNU_all_call_sites + .long 0x71 # DW_AT_sibling + .uleb128 0x3 # (DIE (0x4c) DW_TAG_formal_parameter) + .ascii "x\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx2.cc) + .byte 0x15 # DW_AT_decl_line + .long 0x71 # DW_AT_type + .long .LLST0 # DW_AT_location + .uleb128 0x4 # (DIE (0x59) DW_TAG_GNU_call_site) + .quad .LVL2 # DW_AT_low_pc + # DW_AT_GNU_tail_call + .long 0x78 # DW_AT_abstract_origin + .uleb128 0x5 # (DIE (0x66) DW_TAG_GNU_call_site_parameter) + .uleb128 0x1 # DW_AT_location + .byte 0x55 # DW_OP_reg5 + .uleb128 0x5 # DW_AT_GNU_call_site_value + .byte 0xf3 # DW_OP_GNU_entry_value + .uleb128 0x1 + .byte 0x55 # DW_OP_reg5 + .byte 0x23 # DW_OP_plus_uconst + .uleb128 0x1 + .byte 0 # end of children of DIE 0x59 + .byte 0 # end of children of DIE 0x2d + .uleb128 0x6 # (DIE (0x71) DW_TAG_base_type) + .byte 0x4 # DW_AT_byte_size + .byte 0x5 # DW_AT_encoding + .ascii "int\0" # DW_AT_name + .uleb128 0x7 # (DIE (0x78) DW_TAG_subprogram) + # DW_AT_external + .ascii "g\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-cxx2.cc) + .byte 0x12 # DW_AT_decl_line + .long .LASF4 # DW_AT_linkage_name: "_Z1gi" + # DW_AT_declaration + .uleb128 0x8 # (DIE (0x81) DW_TAG_formal_parameter) + .long 0x71 # DW_AT_type + .byte 0 # end of children of DIE 0x78 + .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 0x7 # (DW_FORM_data8) + .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 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .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 0x6e # (DW_AT_linkage_name) + .uleb128 0xe # (DW_FORM_strp) + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1 # (DW_FORM_addr) + .uleb128 0x12 # (DW_AT_high_pc) + .uleb128 0x7 # (DW_FORM_data8) + .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 0x17 # (DW_FORM_sec_offset) + .byte 0 + .byte 0 + .uleb128 0x4 # (abbrev code) + .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site) + .byte 0x1 # DW_children_yes + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1 # (DW_FORM_addr) + .uleb128 0x2115 # (DW_AT_GNU_tail_call) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x31 # (DW_AT_abstract_origin) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .uleb128 0x5 # (abbrev code) + .uleb128 0x410a # (TAG: DW_TAG_GNU_call_site_parameter) + .byte 0 # DW_children_no + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x18 # (DW_FORM_exprloc) + .uleb128 0x2111 # (DW_AT_GNU_call_site_value) + .uleb128 0x18 # (DW_FORM_exprloc) + .byte 0 + .byte 0 + .uleb128 0x6 # (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 0x7 # (abbrev code) + .uleb128 0x2e # (TAG: DW_TAG_subprogram) + .byte 0x1 # DW_children_yes + .uleb128 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .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 0x6e # (DW_AT_linkage_name) + .uleb128 0xe # (DW_FORM_strp) + .uleb128 0x3c # (DW_AT_declaration) + .uleb128 0x19 # (DW_FORM_flag_present) + .byte 0 + .byte 0 + .uleb128 0x8 # (abbrev code) + .uleb128 0x5 # (TAG: DW_TAG_formal_parameter) + .byte 0 # DW_children_no + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .byte 0 + .section .debug_loc,"",@progbits +.Ldebug_loc0: +.LLST0: + .quad .LVL0-.Ltext0 # Location list begin address (*.LLST0) + .quad .LVL1-.Ltext0 # Location list end address (*.LLST0) + .value 0x1 # Location expression size + .byte 0x55 # DW_OP_reg5 + .quad .LVL1-.Ltext0 # Location list begin address (*.LLST0) + .quad .LVL2-1-.Ltext0 # Location list end address (*.LLST0) + .value 0x3 # Location expression size + .byte 0x75 # DW_OP_breg5 + .sleb128 -1 + .byte 0x9f # DW_OP_stack_value + .quad .LVL2-1-.Ltext0 # Location list begin address (*.LLST0) + .quad .LFE0-.Ltext0 # Location list end address (*.LLST0) + .value 0x4 # Location expression size + .byte 0xf3 # DW_OP_GNU_entry_value + .uleb128 0x1 + .byte 0x55 # DW_OP_reg5 + .byte 0x9f # DW_OP_stack_value + .quad 0 # Location list terminator begin (*.LLST0) + .quad 0 # Location list terminator end (*.LLST0) + .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 +.LASF0: + .string "GNU C++ 4.8.0 20130220 (Red Hat 4.8.0-0.14) -mtune=generic -march=x86-64 -g -O2" +.LASF2: + .string "" +.LASF3: + .string "_Z1fi" +.LASF1: + .string "gdb.arch/amd64-tailcall-cxx2.cc" +.LASF4: + .string "_Z1gi" + .ident "GCC: (GNU) 4.8.0 20130220 (Red Hat 4.8.0-0.14)" + .section .note.GNU-stack,"",@progbits diff --git a/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.cc b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.cc new file mode 100644 index 0000000..232f4fb --- /dev/null +++ b/gdb/testsuite/gdb.arch/amd64-tailcall-cxx2.cc @@ -0,0 +1,24 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2013 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/>. */ + +extern void g (int x); + +__attribute__ ((noinline, noclone)) void +f (int x) +{ + g (x + 1); +} |