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* dwarf2expr.c (execute_stack_op): Support DW_OP_GNU_parameter_ref.
	* dwarf2loc.c (call_site_parameter_matches): Support
	CALL_SITE_PARAMETER_PARAM_OFFSET.
	(needs_dwarf_reg_entry_value): Push stub value.
	* dwarf2read.c (read_call_site_scope): New variable origin.  Support
	CALL_SITE_PARAMETER_PARAM_OFFSET and its DW_AT_abstract_origin.
	* gdbtypes.h (enum call_site_parameter_kind): New item
	CALL_SITE_PARAMETER_PARAM_OFFSET.
	(struct call_site.parameter.u): New field param_offset.

gdb/testsuite/
	* gdb.arch/amd64-entry-value-param.S: New file.
	* gdb.arch/amd64-entry-value-param.c: New file.
	* gdb.arch/amd64-entry-value-param.exp: New file.
This commit is contained in:
Jan Kratochvil 2012-06-17 19:53:52 +00:00
parent 24c5c679cb
commit 1788b2d3be
9 changed files with 764 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
gdb/ChangeLog
View File

@ -1,3 +1,15 @@
2012-06-17 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2expr.c (execute_stack_op): Support DW_OP_GNU_parameter_ref.
* dwarf2loc.c (call_site_parameter_matches): Support
CALL_SITE_PARAMETER_PARAM_OFFSET.
(needs_dwarf_reg_entry_value): Push stub value.
* dwarf2read.c (read_call_site_scope): New variable origin. Support
CALL_SITE_PARAMETER_PARAM_OFFSET and its DW_AT_abstract_origin.
* gdbtypes.h (enum call_site_parameter_kind): New item
CALL_SITE_PARAMETER_PARAM_OFFSET.
(struct call_site.parameter.u): New field param_offset.
2012-06-17 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Generalize call_site.parameter key.

14
gdb/dwarf2expr.c
View File

@ -1392,6 +1392,20 @@ execute_stack_op (struct dwarf_expr_context *ctx,
"or for DW_OP_breg*(0)+DW_OP_deref*"));
}
case DW_OP_GNU_parameter_ref:
{
union call_site_parameter_u kind_u;
kind_u.param_offset.cu_off = extract_unsigned_integer (op_ptr, 4,
byte_order);
op_ptr += 4;
ctx->funcs->push_dwarf_reg_entry_value (ctx,
CALL_SITE_PARAMETER_PARAM_OFFSET,
kind_u,
-1 /* deref_size */);
}
goto no_push;
case DW_OP_GNU_const_type:
{
cu_offset type_die;

5
gdb/dwarf2loc.c
View File

@ -962,6 +962,8 @@ call_site_parameter_matches (struct call_site_parameter *parameter,
return kind_u.dwarf_reg == parameter->u.dwarf_reg;
case CALL_SITE_PARAMETER_FB_OFFSET:
return kind_u.fb_offset == parameter->u.fb_offset;
case CALL_SITE_PARAMETER_PARAM_OFFSET:
return kind_u.param_offset.cu_off == parameter->u.param_offset.cu_off;
}
return 0;
}
@ -2397,6 +2399,9 @@ needs_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
struct needs_frame_baton *nf_baton = ctx->baton;
nf_baton->needs_frame = 1;
/* The expression may require some stub values on DWARF stack. */
dwarf_expr_push_address (ctx, 0, 0);
}
/* DW_OP_GNU_addr_index doesn't require a frame. */

20
gdb/dwarf2read.c
View File

@ -7812,7 +7812,7 @@ read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu)
child_die = sibling_die (child_die))
{
struct call_site_parameter *parameter;
struct attribute *loc;
struct attribute *loc, *origin;
if (child_die->tag != DW_TAG_GNU_call_site_parameter)
{
@ -7823,11 +7823,23 @@ read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu)
gdb_assert (call_site->parameter_count < nparams);
parameter = &call_site->parameter[call_site->parameter_count];
/* DW_AT_location specifies the register number. Value of the data
assumed for the register is contained in DW_AT_GNU_call_site_value. */
/* DW_AT_location specifies the register number or DW_AT_abstract_origin
specifies DW_TAG_formal_parameter. Value of the data assumed for the
register is contained in DW_AT_GNU_call_site_value. */
loc = dwarf2_attr (child_die, DW_AT_location, cu);
if (loc == NULL || !attr_form_is_block (loc))
origin = dwarf2_attr (child_die, DW_AT_abstract_origin, cu);
if (loc == NULL && origin != NULL && is_ref_attr (origin))
{
sect_offset offset;
parameter->kind = CALL_SITE_PARAMETER_PARAM_OFFSET;
offset = dwarf2_get_ref_die_offset (origin);
gdb_assert (offset.sect_off >= cu->header.offset.sect_off);
parameter->u.param_offset.cu_off = (offset.sect_off
- cu->header.offset.sect_off);
}
else if (loc == NULL || origin != NULL || !attr_form_is_block (loc))
{
complaint (&symfile_complaints,
_("No DW_FORM_block* DW_AT_location for "

10
gdb/gdbtypes.h
View File

@ -924,7 +924,10 @@ enum call_site_parameter_kind
CALL_SITE_PARAMETER_DWARF_REG,
/* Use field call_site_parameter.u.fb_offset. */
CALL_SITE_PARAMETER_FB_OFFSET
CALL_SITE_PARAMETER_FB_OFFSET,
/* Use field call_site_parameter.u.param_offset. */
CALL_SITE_PARAMETER_PARAM_OFFSET
};
/* A place where a function gets called from, represented by
@ -971,6 +974,11 @@ struct call_site
/* Offset from the callee's frame base, for stack passed parameters.
This equals offset from the caller's stack pointer. */
CORE_ADDR fb_offset;
/* Offset relative to the start of this PER_CU to
DW_TAG_formal_parameter which is referenced by both caller and
the callee. */
cu_offset param_offset;
}
u;

6
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2012-06-17 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.arch/amd64-entry-value-param.S: New file.
* gdb.arch/amd64-entry-value-param.c: New file.
* gdb.arch/amd64-entry-value-param.exp: New file.
2012-06-15 Tom Tromey <tromey@redhat.com>
* gdb.cp/namespace.exp: Add "show lang" test.

611
gdb/testsuite/gdb.arch/amd64-entry-value-param.S Normal file
View File

@ -0,0 +1,611 @@
/* 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 file is compiled from gdb.arch/amd64-entry-value-param.c
using -g -dA -S -O2. */
.file "amd64-entry-value-param.c"
.text
.Ltext0:
.p2align 4,,15
.type foo.isra.0.constprop.2, @function
foo.isra.0.constprop.2:
.LFB4:
.file 1 "gdb.arch/amd64-entry-value-param.c"
/* gdb.arch/amd64-entry-value-param.c:21 */
.loc 1 21 0
.cfi_startproc
.LVL0:
/* BLOCK 2 freq:10000 seq:0 */
/* PRED: ENTRY [100.0%] (fallthru) */
/* gdb.arch/amd64-entry-value-param.c:26 */
.loc 1 26 0
movl vv(%rip), %eax
addl $1, %eax
movl %eax, vv(%rip)
/* gdb.arch/amd64-entry-value-param.c:27 */
.loc 1 27 0
leal 3(%rdi), %eax
/* SUCC: EXIT [100.0%] */
/* gdb.arch/amd64-entry-value-param.c:28 */
.loc 1 28 0
ret
.cfi_endproc
.LFE4:
.size foo.isra.0.constprop.2, .-foo.isra.0.constprop.2
.p2align 4,,15
.type bar.constprop.1, @function
bar.constprop.1:
.LFB5:
/* gdb.arch/amd64-entry-value-param.c:31 */
.loc 1 31 0
.cfi_startproc
/* BLOCK 2 freq:10000 seq:0 */
/* PRED: ENTRY [100.0%] (fallthru) */
.LVL1:
pushq %rbx
.LCFI0:
.cfi_def_cfa_offset 16
.cfi_offset 3, -16
/* gdb.arch/amd64-entry-value-param.c:33 */
.loc 1 33 0
movl $10, %edi
call foo.isra.0.constprop.2
.LVL2:
movl $10, %edi
movl %eax, %ebx
call foo.isra.0.constprop.2
.LVL3:
movl $16, %edi
addl %eax, %ebx
call foo.isra.0.constprop.2
.LVL4:
leal 10(%rbx,%rax), %eax
/* gdb.arch/amd64-entry-value-param.c:34 */
.loc 1 34 0
popq %rbx
.LCFI1:
.cfi_def_cfa_offset 8
/* SUCC: EXIT [100.0%] */
ret
.cfi_endproc
.LFE5:
.size bar.constprop.1, .-bar.constprop.1
.section .text.startup,"ax",@progbits
.p2align 4,,15
.globl main
.type main, @function
main:
.LFB2:
/* gdb.arch/amd64-entry-value-param.c:38 */
.loc 1 38 0
.cfi_startproc
/* BLOCK 2 freq:10000 seq:0 */
/* PRED: ENTRY [100.0%] (fallthru) */
/* gdb.arch/amd64-entry-value-param.c:39 */
.loc 1 39 0
jmp bar.constprop.1
/* SUCC: EXIT [100.0%] (ab,sibcall) */
.LVL5:
.cfi_endproc
.LFE2:
.size main, .-main
.comm vv,4,4
.text
.Letext0:
.section .debug_info,"",@progbits
.Ldebug_info0:
.4byte 0x1b7 /* Length of Compilation Unit Info */
.2byte 0x2 /* DWARF version number */
.4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x8 /* Pointer Size (in bytes) */
.uleb128 0x1 /* (DIE (0xb) DW_TAG_compile_unit) */
.4byte .LASF0 /* DW_AT_producer: "GNU C 4.7.1 20120612 (prerelease)" */
.byte 0x1 /* DW_AT_language */
.4byte .LASF1 /* DW_AT_name: "gdb.arch/amd64-entry-value-param.c" */
.4byte .LASF2 /* DW_AT_comp_dir: "" */
.4byte .Ldebug_ranges0+0 /* DW_AT_ranges */
.quad 0 /* DW_AT_low_pc */
.quad 0 /* DW_AT_entry_pc */
.4byte .Ldebug_line0 /* DW_AT_stmt_list */
.uleb128 0x2 /* (DIE (0x31) DW_TAG_subprogram) */
.ascii "foo\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x15 /* DW_AT_decl_line */
.byte 0x1 /* DW_AT_prototyped */
.4byte 0x79 /* DW_AT_type */
.byte 0 /* DW_AT_inline */
.4byte 0x79 /* DW_AT_sibling */
.uleb128 0x3 /* (DIE (0x42) DW_TAG_formal_parameter) */
.ascii "x\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x15 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.uleb128 0x3 /* (DIE (0x4b) DW_TAG_formal_parameter) */
.ascii "y\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x15 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.uleb128 0x3 /* (DIE (0x54) DW_TAG_formal_parameter) */
.ascii "z\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x15 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.uleb128 0x4 /* (DIE (0x5d) DW_TAG_variable) */
.ascii "a\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x17 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.uleb128 0x4 /* (DIE (0x66) DW_TAG_variable) */
.ascii "b\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x18 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.uleb128 0x4 /* (DIE (0x6f) DW_TAG_variable) */
.ascii "c\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x19 /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.byte 0 /* end of children of DIE 0x31 */
.uleb128 0x5 /* (DIE (0x79) DW_TAG_base_type) */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.uleb128 0x2 /* (DIE (0x80) DW_TAG_subprogram) */
.ascii "bar\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x1f /* DW_AT_decl_line */
.byte 0x1 /* DW_AT_prototyped */
.4byte 0x79 /* DW_AT_type */
.byte 0x1 /* DW_AT_inline */
.4byte 0x9b /* DW_AT_sibling */
.uleb128 0x3 /* (DIE (0x91) DW_TAG_formal_parameter) */
.ascii "x\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x1f /* DW_AT_decl_line */
.4byte 0x79 /* DW_AT_type */
.byte 0 /* end of children of DIE 0x80 */
.uleb128 0x6 /* (DIE (0x9b) DW_TAG_subprogram) */
.4byte 0x31 /* DW_AT_abstract_origin */
.quad .LFB4 /* DW_AT_low_pc */
.quad .LFE4 /* 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 */
.4byte 0xf1 /* DW_AT_sibling */
.uleb128 0x7 /* (DIE (0xb8) DW_TAG_formal_parameter) */
.4byte 0x42 /* DW_AT_abstract_origin */
.byte 0x1 /* DW_AT_location */
.byte 0x55 /* DW_OP_reg5 */
.uleb128 0x7 /* (DIE (0xbf) DW_TAG_formal_parameter) */
.4byte 0x4b /* DW_AT_abstract_origin */
.byte 0x6 /* DW_AT_location */
.byte 0xfa /* DW_OP_GNU_parameter_ref */
.4byte 0x4b
.byte 0x9f /* DW_OP_stack_value */
.uleb128 0x8 /* (DIE (0xcb) DW_TAG_variable) */
.4byte 0x5d /* DW_AT_abstract_origin */
.byte 0x5 /* DW_AT_location */
.byte 0x75 /* DW_OP_breg5 */
.sleb128 0
.byte 0x31 /* DW_OP_lit1 */
.byte 0x24 /* DW_OP_shl */
.byte 0x9f /* DW_OP_stack_value */
.uleb128 0x8 /* (DIE (0xd6) DW_TAG_variable) */
.4byte 0x66 /* DW_AT_abstract_origin */
.byte 0x8 /* DW_AT_location */
.byte 0xfa /* DW_OP_GNU_parameter_ref */
.4byte 0x4b
.byte 0x31 /* DW_OP_lit1 */
.byte 0x24 /* DW_OP_shl */
.byte 0x9f /* DW_OP_stack_value */
.uleb128 0x9 /* (DIE (0xe4) DW_TAG_variable) */
.4byte 0x6f /* DW_AT_abstract_origin */
.byte 0x6 /* DW_AT_const_value */
.uleb128 0xa /* (DIE (0xea) DW_TAG_formal_parameter) */
.4byte 0x54 /* DW_AT_abstract_origin */
.byte 0x3 /* DW_AT_const_value */
.byte 0 /* end of children of DIE 0x9b */
.uleb128 0xb /* (DIE (0xf1) DW_TAG_subprogram) */
.4byte 0x80 /* DW_AT_abstract_origin */
.quad .LFB5 /* DW_AT_low_pc */
.quad .LFE5 /* DW_AT_high_pc */
.4byte .LLST0 /* DW_AT_frame_base */
.byte 0x1 /* DW_AT_GNU_all_call_sites */
.4byte 0x16c /* DW_AT_sibling */
.uleb128 0xa /* (DIE (0x10f) DW_TAG_formal_parameter) */
.4byte 0x91 /* DW_AT_abstract_origin */
.byte 0xa /* DW_AT_const_value */
.uleb128 0xc /* (DIE (0x115) DW_TAG_GNU_call_site) */
.quad .LVL2 /* DW_AT_low_pc */
.4byte 0x9b /* DW_AT_abstract_origin */
.4byte 0x133 /* DW_AT_sibling */
.uleb128 0xd /* (DIE (0x126) DW_TAG_GNU_call_site_parameter) */
.byte 0x1 /* DW_AT_location */
.byte 0x55 /* DW_OP_reg5 */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x3a /* DW_OP_lit10 */
.uleb128 0xe /* (DIE (0x12b) DW_TAG_GNU_call_site_parameter) */
.4byte 0x4b /* DW_AT_abstract_origin */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x32 /* DW_OP_lit2 */
.byte 0 /* end of children of DIE 0x115 */
.uleb128 0xc /* (DIE (0x133) DW_TAG_GNU_call_site) */
.quad .LVL3 /* DW_AT_low_pc */
.4byte 0x9b /* DW_AT_abstract_origin */
.4byte 0x151 /* DW_AT_sibling */
.uleb128 0xd /* (DIE (0x144) DW_TAG_GNU_call_site_parameter) */
.byte 0x1 /* DW_AT_location */
.byte 0x55 /* DW_OP_reg5 */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x3a /* DW_OP_lit10 */
.uleb128 0xe /* (DIE (0x149) DW_TAG_GNU_call_site_parameter) */
.4byte 0x4b /* DW_AT_abstract_origin */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x34 /* DW_OP_lit4 */
.byte 0 /* end of children of DIE 0x133 */
.uleb128 0xf /* (DIE (0x151) DW_TAG_GNU_call_site) */
.quad .LVL4 /* DW_AT_low_pc */
.4byte 0x9b /* DW_AT_abstract_origin */
.uleb128 0xd /* (DIE (0x15e) DW_TAG_GNU_call_site_parameter) */
.byte 0x1 /* DW_AT_location */
.byte 0x55 /* DW_OP_reg5 */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x40 /* DW_OP_lit16 */
.uleb128 0xe /* (DIE (0x163) DW_TAG_GNU_call_site_parameter) */
.4byte 0x4b /* DW_AT_abstract_origin */
.byte 0x1 /* DW_AT_GNU_call_site_value */
.byte 0x3a /* DW_OP_lit10 */
.byte 0 /* end of children of DIE 0x151 */
.byte 0 /* end of children of DIE 0xf1 */
.uleb128 0x10 /* (DIE (0x16c) DW_TAG_subprogram) */
.byte 0x1 /* DW_AT_external */
.4byte .LASF3 /* DW_AT_name: "main" */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x25 /* DW_AT_decl_line */
.byte 0x1 /* DW_AT_prototyped */
.4byte 0x79 /* 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 */
.4byte 0x1a0 /* DW_AT_sibling */
.uleb128 0x11 /* (DIE (0x191) DW_TAG_GNU_call_site) */
.quad .LVL5 /* DW_AT_low_pc */
.byte 0x1 /* DW_AT_GNU_tail_call */
.4byte 0xf1 /* DW_AT_abstract_origin */
.byte 0 /* end of children of DIE 0x16c */
.uleb128 0x12 /* (DIE (0x1a0) DW_TAG_variable) */
.ascii "vv\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.arch/amd64-entry-value-param.c) */
.byte 0x12 /* DW_AT_decl_line */
.4byte 0x1b5 /* DW_AT_type */
.byte 0x1 /* DW_AT_external */
.byte 0x9 /* DW_AT_location */
.byte 0x3 /* DW_OP_addr */
.quad vv
.uleb128 0x13 /* (DIE (0x1b5) DW_TAG_volatile_type) */
.4byte 0x79 /* 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 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 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x20 /* (DW_AT_inline) */
.uleb128 0xb /* (DW_FORM_data1) */
.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) */
.byte 0
.byte 0
.uleb128 0x4 /* (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) */
.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 0x1 /* DW_children_yes */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.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 0x7 /* (abbrev code) */
.uleb128 0x5 /* (TAG: DW_TAG_formal_parameter) */
.byte 0 /* DW_children_no */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x2 /* (DW_AT_location) */
.uleb128 0xa /* (DW_FORM_block1) */
.byte 0
.byte 0
.uleb128 0x8 /* (abbrev code) */
.uleb128 0x34 /* (TAG: DW_TAG_variable) */
.byte 0 /* DW_children_no */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x2 /* (DW_AT_location) */
.uleb128 0xa /* (DW_FORM_block1) */
.byte 0
.byte 0
.uleb128 0x9 /* (abbrev code) */
.uleb128 0x34 /* (TAG: DW_TAG_variable) */
.byte 0 /* DW_children_no */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x1c /* (DW_AT_const_value) */
.uleb128 0xb /* (DW_FORM_data1) */
.byte 0
.byte 0
.uleb128 0xa /* (abbrev code) */
.uleb128 0x5 /* (TAG: DW_TAG_formal_parameter) */
.byte 0 /* DW_children_no */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x1c /* (DW_AT_const_value) */
.uleb128 0xb /* (DW_FORM_data1) */
.byte 0
.byte 0
.uleb128 0xb /* (abbrev code) */
.uleb128 0x2e /* (TAG: DW_TAG_subprogram) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.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 0x6 /* (DW_FORM_data4) */
.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 0xc /* (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) */
.uleb128 0x1 /* (DW_AT_sibling) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0
.byte 0
.uleb128 0xd /* (abbrev code) */
.uleb128 0x410a /* (TAG: DW_TAG_GNU_call_site_parameter) */
.byte 0 /* DW_children_no */
.uleb128 0x2 /* (DW_AT_location) */
.uleb128 0xa /* (DW_FORM_block1) */
.uleb128 0x2111 /* (DW_AT_GNU_call_site_value) */
.uleb128 0xa /* (DW_FORM_block1) */
.byte 0
.byte 0
.uleb128 0xe /* (abbrev code) */
.uleb128 0x410a /* (TAG: DW_TAG_GNU_call_site_parameter) */
.byte 0 /* DW_children_no */
.uleb128 0x31 /* (DW_AT_abstract_origin) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x2111 /* (DW_AT_GNU_call_site_value) */
.uleb128 0xa /* (DW_FORM_block1) */
.byte 0
.byte 0
.uleb128 0xf /* (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 0x10 /* (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 0x11 /* (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 0x12 /* (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 0x13 /* (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_loc,"",@progbits
.Ldebug_loc0:
.LLST0:
.quad .LFB5 /* Location list begin address (*.LLST0) */
.quad .LCFI0 /* Location list end address (*.LLST0) */
.2byte 0x2 /* Location expression size */
.byte 0x77 /* DW_OP_breg7 */
.sleb128 8
.quad .LCFI0 /* Location list begin address (*.LLST0) */
.quad .LCFI1 /* Location list end address (*.LLST0) */
.2byte 0x2 /* Location expression size */
.byte 0x77 /* DW_OP_breg7 */
.sleb128 16
.quad .LCFI1 /* Location list begin address (*.LLST0) */
.quad .LFE5 /* Location list end address (*.LLST0) */
.2byte 0x2 /* Location expression size */
.byte 0x77 /* DW_OP_breg7 */
.sleb128 8
.quad 0 /* Location list terminator begin (*.LLST0) */
.quad 0 /* Location list terminator end (*.LLST0) */
.section .debug_aranges,"",@progbits
.4byte 0x3c /* Length of Address Ranges Info */
.2byte 0x2 /* DWARF Version */
.4byte .Ldebug_info0 /* Offset of Compilation Unit Info */
.byte 0x8 /* Size of Address */
.byte 0 /* Size of Segment Descriptor */
.2byte 0 /* Pad to 16 byte boundary */
.2byte 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
.LASF1:
.string "gdb.arch/amd64-entry-value-param.c"
.LASF3:
.string "main"
.LASF2:
.string ""
.LASF0:
.string "GNU C 4.7.1 20120612 (prerelease)"
.ident "GCC: (GNU) 4.7.1 20120612 (prerelease)"
.section .note.GNU-stack,"",@progbits

40
gdb/testsuite/gdb.arch/amd64-entry-value-param.c Normal file
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@ -0,0 +1,40 @@
/* 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 vv;
static __attribute__((noinline)) int
foo (int x, int y, int z)
{
int a = x * 2;
int b = y * 2;
int c = z * 2;
vv++; /* break-here */
return x + z;
}
static __attribute__((noinline)) int
bar (int x)
{
return foo (x, 2, 3) + foo (x, 4, 3) + foo (x + 6, x, 3) + x;
}
int
main (void)
{
return bar (10);
}

51
gdb/testsuite/gdb.arch/amd64-entry-value-param.exp Normal file
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@ -0,0 +1,51 @@
# 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 testfile amd64-entry-value-param
set srcfile ${testfile}.S
set csrcfile ${testfile}.c
set opts {}
if [info exists COMPILE] {
# make check RUNTESTFLAGS="gdb.arch/amd64-entry-value-param.exp COMPILE=1"
set srcfile ${csrcfile}
lappend opts debug optimize=-O2
} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
verbose "Skipping amd64-entry-value-param."
return
}
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
return -1
}
if ![runto_main] {
return -1
}
set srcfile $csrcfile
gdb_breakpoint [gdb_get_line_number "break-here"]
gdb_continue_to_breakpoint "break-here" ".* break-here .*"
gdb_test "p y" " = 2"
gdb_test "p b" " = 4"
gdb_continue_to_breakpoint "break-here" ".* break-here .*"
gdb_test "p y" " = 4"
gdb_test "p b" " = 8"
gdb_continue_to_breakpoint "break-here" ".* break-here .*"
gdb_test "p y" " = 10"
gdb_test "p b" " = 20"