gdb/
* dwarf2expr.c (read_sleb128): Fix signed extension overflowing host `int'. gdb/testsuite/ * gdb.dwarf2/dw2-const.S (Pointer size): Change from 4 to 8. (DW_AT_high_pc, DW_AT_low_pc): Remove them. (val8, .Ltype_const8, .Ltype_int8, DW_TAG_variable): New. * gdb.dwarf2/dw2-const.exp (print/x val8): New test.
This commit is contained in:
Jan Kratochvil
parent
713389e024
commit
04ad99e60b
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@ -1,3 +1,8 @@
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2011-07-11 Jan Kratochvil <jan.kratochvil@redhat.com>
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* dwarf2expr.c (read_sleb128): Fix signed extension overflowing host
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`int'.
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2011-07-11 Phil Muldoon <pmuldoon@redhat.com>
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PR python/12438
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@ -418,7 +418,7 @@ read_sleb128 (const gdb_byte *buf, const gdb_byte *buf_end, LONGEST * r)
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break;
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}
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if (shift < (sizeof (*r) * 8) && (byte & 0x40) != 0)
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result |= -(1 << shift);
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result |= -(((LONGEST) 1) << shift);
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*r = result;
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return buf;
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@ -1,3 +1,10 @@
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2011-07-11 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.dwarf2/dw2-const.S (Pointer size): Change from 4 to 8.
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(DW_AT_high_pc, DW_AT_low_pc): Remove them.
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(val8, .Ltype_const8, .Ltype_int8, DW_TAG_variable): New.
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* gdb.dwarf2/dw2-const.exp (print/x val8): New test.
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2011-07-11 Phil Muldoon <pmuldoon@redhat.com>
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PR python/12438
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@ -37,13 +37,11 @@ func_cu1:
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.Lcu1_start:
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.2byte 2 /* DWARF Version */
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.4byte .Labbrev1_begin /* Offset into abbrev section */
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.byte 4 /* Pointer size */
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.byte 8 /* Pointer size */
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/* CU die */
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.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
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.4byte .Lline1_begin /* DW_AT_stmt_list */
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.4byte .Lend_text1 /* DW_AT_high_pc */
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.4byte .Lbegin_text1 /* DW_AT_low_pc */
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.ascii "file1.txt\0" /* DW_AT_name */
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.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
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.byte 1 /* DW_AT_language (C) */
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@ -57,6 +55,27 @@ func_cu1:
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.uleb128 0x9 /* Abbrev: DW_TAG_const_type */
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.4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
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.uleb128 0xa /* Abbrev: DW_TAG_variable */
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.ascii "val8\0" /* DW_AT_name */
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.4byte .Ltype_const8-.Lcu1_begin /* DW_AT_type */
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.byte 2f - 1f /* DW_AT_location */
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1: .byte 0x11 /* DW_OP_consts */
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#if 0 /* gas encodes it explicitly. */
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.slab128 0xffffffff00000000
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#endif
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#if 0 /* gas encoded it correctly - formed GDB FAILed. */
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.sleb128 -4294967296
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#endif
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#if 1 /* Rather encode sleb128 by hand. */
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.byte 0x80, 0x80, 0x80, 0x80, 0x70
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#endif
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.byte 0x9f /* DW_OP_stack_value */
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2:
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.Ltype_const8:
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.uleb128 0x9 /* Abbrev: DW_TAG_const_type */
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.4byte .Ltype_int8-.Lcu1_begin /* DW_AT_type */
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/* func_cu1 */
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.uleb128 2 /* Abbrev: DW_TAG_subprogram */
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.byte 1 /* DW_AT_external */
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@ -64,8 +83,6 @@ func_cu1:
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.byte 2 /* DW_AT_decl_line */
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.ascii "func_cu1\0" /* DW_AT_name */
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.4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
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.4byte .Lbegin_func_cu1 /* DW_AT_low_pc */
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.4byte .Lend_func_cu1 /* DW_AT_high_pc */
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.byte 1 /* DW_AT_frame_base: length */
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.byte 0x55 /* DW_AT_frame_base: DW_OP_reg5 */
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@ -75,6 +92,12 @@ func_cu1:
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.byte 4 /* DW_AT_byte_size */
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.byte 5 /* DW_AT_encoding */
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.Ltype_int8:
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.uleb128 3 /* Abbrev: DW_TAG_base_type */
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.ascii "int8\0" /* DW_AT_name */
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.byte 8 /* DW_AT_byte_size */
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.byte 5 /* DW_AT_encoding */
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.byte 0 /* End of children of CU */
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.Lcu1_end:
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@ -87,10 +110,6 @@ func_cu1:
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.byte 1 /* has_children */
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.uleb128 0x10 /* DW_AT_stmt_list */
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.uleb128 0x6 /* DW_FORM_data4 */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x25 /* DW_AT_producer */
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@ -113,10 +132,6 @@ func_cu1:
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x40 /* DW_AT_frame_base */
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.uleb128 0xa /* DW_FORM_block1 */
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.byte 0x0 /* Terminator */
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@ -154,6 +169,18 @@ func_cu1:
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 0xa /* abbrev code */
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.uleb128 0x34 /* TAG: DW_TAG_variable */
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.byte 0x0 /* 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 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x02 /* DW_AT_location */
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.uleb128 0xa /* DW_FORM_block1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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@ -39,3 +39,4 @@ clean_restart ${testfile}.x
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gdb_test "print twelve" "= 12"
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gdb_test "print/x val8" " = 0xffffffff00000000"
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