gdb/ChangeLog:
2010-06-16 Sergio Durigan Junior <sergiodj@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * breakpoint.c: Include parser-defs.h. (watchpoint_exp_is_const): New function. (watch_command_1): Call watchpoint_exp_is_const to check if the expression is constant. gdb/doc/ChangeLog: 2010-06-16 Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo: Include information about the correct use of addresses in the `watch' command. gdb/testsuite/ChangeLog: 2010-06-16 Jan Kratochvil <jan.kratochvil@redhat.com> Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/watch-notconst.c: New file. * gdb.base/watch-notconst.S: New file. * gdb.base/watch-notconst2.c: New file. * gdb.base/watch-notconst2.S: New file. * gdb.base/watch-notconst.exp: New file. * gdb.base/watchpoint.c (global_ptr_ptr): New variable. (func4): Add operations on `global_ptr_ptr'. * gdb.base/watchpoint.exp (test_constant_watchpoint): New routine to test watchpoints created with a constant expression. (test_inaccessible_watchpoint): Include tests for watchpoints created with a constant expression.
This commit is contained in:
Sergio Durigan Junior
parent
3e23530232
commit
65d79d4b97
11 changed files with 564 additions and 2 deletions
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@ -1,3 +1,11 @@
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2010-06-16 Sergio Durigan Junior <sergiodj@redhat.com>
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Jan Kratochvil <jan.kratochvil@redhat.com>
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* breakpoint.c: Include parser-defs.h.
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(watchpoint_exp_is_const): New function.
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(watch_command_1): Call watchpoint_exp_is_const to check
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if the expression is constant.
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2010-06-15 Andreas Schwab <schwab@linux-m68k.org>
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* configure.ac: Check for RDYNAMIC also for cross builds.
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117
gdb/breakpoint.c
117
gdb/breakpoint.c
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@ -61,6 +61,7 @@
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#include "valprint.h"
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#include "jit.h"
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#include "xml-syscall.h"
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#include "parser-defs.h"
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/* readline include files */
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#include "readline/readline.h"
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@ -7767,6 +7768,111 @@ stopat_command (char *arg, int from_tty)
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break_command_1 (arg, 0, from_tty);
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}
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/* Return non-zero if EXP is verified as constant. Returned zero means EXP is
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variable. Also the constant detection may fail for some constant
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expressions and in such case still falsely return zero. */
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static int
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watchpoint_exp_is_const (const struct expression *exp)
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{
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int i = exp->nelts;
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while (i > 0)
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{
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int oplenp, argsp;
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/* We are only interested in the descriptor of each element. */
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operator_length (exp, i, &oplenp, &argsp);
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i -= oplenp;
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switch (exp->elts[i].opcode)
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{
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case BINOP_ADD:
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case BINOP_SUB:
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case BINOP_MUL:
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case BINOP_DIV:
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case BINOP_REM:
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case BINOP_MOD:
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case BINOP_LSH:
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case BINOP_RSH:
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case BINOP_LOGICAL_AND:
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case BINOP_LOGICAL_OR:
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case BINOP_BITWISE_AND:
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case BINOP_BITWISE_IOR:
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case BINOP_BITWISE_XOR:
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case BINOP_EQUAL:
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case BINOP_NOTEQUAL:
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case BINOP_LESS:
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case BINOP_GTR:
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case BINOP_LEQ:
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case BINOP_GEQ:
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case BINOP_REPEAT:
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case BINOP_COMMA:
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case BINOP_EXP:
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case BINOP_MIN:
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case BINOP_MAX:
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case BINOP_INTDIV:
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case BINOP_CONCAT:
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case BINOP_IN:
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case BINOP_RANGE:
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case TERNOP_COND:
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case TERNOP_SLICE:
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case TERNOP_SLICE_COUNT:
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case OP_LONG:
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case OP_DOUBLE:
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case OP_DECFLOAT:
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case OP_LAST:
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case OP_COMPLEX:
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case OP_STRING:
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case OP_BITSTRING:
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case OP_ARRAY:
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case OP_TYPE:
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case OP_NAME:
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case OP_OBJC_NSSTRING:
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case UNOP_NEG:
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case UNOP_LOGICAL_NOT:
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case UNOP_COMPLEMENT:
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case UNOP_ADDR:
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case UNOP_HIGH:
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/* Unary, binary and ternary operators: We have to check their
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operands. If they are constant, then so is the result of
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that operation. For instance, if A and B are determined to be
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constants, then so is "A + B".
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UNOP_IND is one exception to the rule above, because the value
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of *ADDR is not necessarily a constant, even when ADDR is. */
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break;
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case OP_VAR_VALUE:
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/* Check whether the associated symbol is a constant.
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We use SYMBOL_CLASS rather than TYPE_CONST because it's
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possible that a buggy compiler could mark a variable as constant
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even when it is not, and TYPE_CONST would return true in this
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case, while SYMBOL_CLASS wouldn't.
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We also have to check for function symbols because they are
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always constant. */
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{
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struct symbol *s = exp->elts[i + 2].symbol;
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if (SYMBOL_CLASS (s) != LOC_BLOCK
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&& SYMBOL_CLASS (s) != LOC_CONST
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&& SYMBOL_CLASS (s) != LOC_CONST_BYTES)
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return 0;
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break;
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}
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/* The default action is to return 0 because we are using
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the optimistic approach here: If we don't know something,
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then it is not a constant. */
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default:
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return 0;
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}
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}
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return 1;
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}
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/* accessflag: hw_write: watch write,
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hw_read: watch read,
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hw_access: watch access (read or write) */
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@ -7861,6 +7967,17 @@ watch_command_1 (char *arg, int accessflag, int from_tty)
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while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t'))
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--exp_end;
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/* Checking if the expression is not constant. */
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if (watchpoint_exp_is_const (exp))
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{
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int len;
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len = exp_end - exp_start;
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while (len > 0 && isspace (exp_start[len - 1]))
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len--;
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error (_("Cannot watch constant value `%.*s'."), len, exp_start);
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}
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exp_valid_block = innermost_block;
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mark = value_mark ();
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fetch_watchpoint_value (exp, &val, NULL, NULL);
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@ -1,3 +1,8 @@
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2010-06-16 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.texinfo: Include information about the correct use
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of addresses in the `watch' command.
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2010-06-11 Stan Shebs <stan@codesourcery.com>
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* gdb.texinfo (Observer Mode): New section.
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@ -3725,6 +3725,18 @@ This command prints a list of watchpoints, using the same format as
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@code{info break} (@pxref{Set Breaks}).
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@end table
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If you watch for a change in a numerically entered address you need to
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dereference it, as the address itself is just a constant number which will
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never change. @value{GDBN} refuses to create a watchpoint that watches
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a never-changing value:
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@smallexample
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(@value{GDBP}) watch 0x600850
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Cannot watch constant value 0x600850.
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(@value{GDBP}) watch *(int *) 0x600850
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Watchpoint 1: *(int *) 6293584
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@end smallexample
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@value{GDBN} sets a @dfn{hardware watchpoint} if possible. Hardware
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watchpoints execute very quickly, and the debugger reports a change in
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value at the exact instruction where the change occurs. If @value{GDBN}
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@ -1,3 +1,18 @@
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2010-06-16 Jan Kratochvil <jan.kratochvil@redhat.com>
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Sergio Durigan Junior <sergiodj@redhat.com>
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* gdb.base/watch-notconst.c: New file.
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* gdb.base/watch-notconst.S: New file.
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* gdb.base/watch-notconst2.c: New file.
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* gdb.base/watch-notconst2.S: New file.
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* gdb.base/watch-notconst.exp: New file.
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* gdb.base/watchpoint.c (global_ptr_ptr): New variable.
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(func4): Add operations on `global_ptr_ptr'.
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* gdb.base/watchpoint.exp (test_constant_watchpoint): New
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routine to test watchpoints created with a constant expression.
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(test_inaccessible_watchpoint): Include tests for watchpoints
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created with a constant expression.
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2010-06-14 Kevin Buettner <kevinb@redhat.com>
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* gdb.disasm/t01_mov.exp, gdb.disasm/t02_mova.exp,
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@ -40,6 +40,7 @@ struct foo struct1, struct2, *ptr1, *ptr2;
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int doread = 0;
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char *global_ptr;
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char **global_ptr_ptr;
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void marker1 ()
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{
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@ -119,6 +120,10 @@ func4 ()
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buf[0] = 3;
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global_ptr = buf;
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buf[0] = 7;
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buf[1] = 5;
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global_ptr_ptr = &global_ptr;
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buf[0] = 9;
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global_ptr++;
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}
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int main ()
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@ -617,7 +617,17 @@ proc test_watchpoint_and_breakpoint {} {
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}
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}
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}
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proc test_constant_watchpoint {} {
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gdb_test "watch 5" "Cannot watch constant value `5'." "number is constant"
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gdb_test "watch marker1" "Cannot watch constant value `marker1'." \
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"marker1 is constant"
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gdb_test "watch count + 6" ".*atchpoint \[0-9\]+: count \\+ 6"
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gdb_test_no_output "delete \$bpnum" "delete watchpoint `count + 6'"
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gdb_test "watch 7 + count" ".*atchpoint \[0-9\]+: 7 \\+ count"
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gdb_test_no_output "delete \$bpnum" "delete watchpoint `7 + count'"
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}
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proc test_inaccessible_watchpoint {} {
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global gdb_prompt
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@ -638,7 +648,8 @@ proc test_inaccessible_watchpoint {} {
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}
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gdb_test "watch *global_ptr" ".*atchpoint \[0-9\]+: \\*global_ptr"
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gdb_test "next" ".*global_ptr = buf.*"
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gdb_test "set \$global_ptr_breakpoint_number = \$bpnum" ""
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gdb_test "next" ".*global_ptr = buf.*" "global_ptr next"
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gdb_test_multiple "next" "next over ptr init" {
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-re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = .*\r\nNew value = 3 .*\r\n.*$gdb_prompt $" {
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# We can not test for <unknown> here because NULL may be readable.
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@ -651,6 +662,14 @@ proc test_inaccessible_watchpoint {} {
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pass "next over buffer set"
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}
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}
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gdb_test "delete \$global_ptr_breakpoint_number" ""
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gdb_test "watch **global_ptr_ptr" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr"
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gdb_test "set \$global_ptr_ptr_breakpoint_number = \$bpnum" ""
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gdb_test "next" ".*global_ptr_ptr = &global_ptr.*" "gloabl_ptr_ptr next"
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gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = .*\r\nNew value = 7 .*" "next over global_ptr_ptr init"
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gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = 7 .*\r\nNew value = 9 .*" "next over global_ptr_ptr buffer set"
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gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = 9 .*\r\nNew value = 5 .*" "next over global_ptr_ptr pointer advance"
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gdb_test_no_output "delete \$global_ptr_ptr_breakpoint_number"
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}
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}
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@ -827,6 +846,13 @@ if [initialize] then {
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test_watchpoint_and_breakpoint
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test_watchpoint_in_big_blob
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# See above.
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if [istarget "mips-idt-*"] then {
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clean_restart
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}
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test_constant_watchpoint
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}
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# Restore old timeout
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39
gdb/testsuite/gdb.dwarf2/watch-notconst.c
Normal file
39
gdb/testsuite/gdb.dwarf2/watch-notconst.c
Normal file
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@ -0,0 +1,39 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2010 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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|
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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.
|
||||
|
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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 program will be compiled with watch-notconst2.S in order to generate a
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single binary.
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The purpose of this test is to see if GDB can still watch the
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variable `x' (define in watch-notconst2.c:f) even when we compile
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the program using -O2 optimization. */
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int
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g (int j)
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{
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int l = j + 2;
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return l;
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}
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extern int f (int i);
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int
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main (int argc, char **argv)
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{
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f (1);
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return 0;
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}
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44
gdb/testsuite/gdb.dwarf2/watch-notconst.exp
Normal file
44
gdb/testsuite/gdb.dwarf2/watch-notconst.exp
Normal file
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@ -0,0 +1,44 @@
|
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# Copyright 2010 Free Software Foundation, Inc.
|
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|
||||
# 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
|
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# 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/>.
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|
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set test "watch-notconst"
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|
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# This test can only be run on targets which support DWARF-2 and use gas.
|
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# For now pick a sampling of likely targets.
|
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if {![istarget *-*-linux*]
|
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&& ![istarget *-*-gnu*]
|
||||
&& ![istarget *-*-elf*]
|
||||
&& ![istarget *-*-openbsd*]
|
||||
&& ![istarget arm-*-eabi*]
|
||||
&& ![istarget powerpc-*-eabi*]} {
|
||||
return 0
|
||||
}
|
||||
|
||||
# This test can only be run on x86 targets.
|
||||
if { ![istarget i?86-*] } {
|
||||
return 0
|
||||
}
|
||||
|
||||
if { [prepare_for_testing "${test}.exp" "${test}" \
|
||||
{watch-notconst.c watch-notconst2.S} {nodebug}] } {
|
||||
return -1
|
||||
}
|
||||
|
||||
if { ![runto f] } {
|
||||
perror "Could not run to breakpoint `f'."
|
||||
continue
|
||||
}
|
||||
|
||||
gdb_test "watch x" ".*\[Ww\]atchpoint 2: x" "watch x"
|
||||
256
gdb/testsuite/gdb.dwarf2/watch-notconst2.S
Normal file
256
gdb/testsuite/gdb.dwarf2/watch-notconst2.S
Normal file
|
|
@ -0,0 +1,256 @@
|
|||
/* This testcase is part of GDB, the GNU debugger.
|
||||
|
||||
Copyright 2010 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 from watch-notconst2.c using the following
|
||||
command line:
|
||||
|
||||
gcc -m32 -dA -S -g -O2 watch-notconst2.c -o watch-notconst2.S
|
||||
|
||||
*/
|
||||
|
||||
|
||||
.file "watch-notconst2.c"
|
||||
.section .debug_abbrev,"",@progbits
|
||||
.Ldebug_abbrev0:
|
||||
.section .debug_info,"",@progbits
|
||||
.Ldebug_info0:
|
||||
.section .debug_line,"",@progbits
|
||||
.Ldebug_line0:
|
||||
.text
|
||||
.Ltext0:
|
||||
.cfi_sections .debug_frame
|
||||
.p2align 4,,15
|
||||
.globl f
|
||||
.type f, @function
|
||||
f:
|
||||
.LFB0:
|
||||
.file 1 "watch-notconst2.c"
|
||||
# watch-notconst2.c:30
|
||||
.loc 1 30 0
|
||||
.cfi_startproc
|
||||
.LVL0:
|
||||
# basic block 2
|
||||
pushl %ebp
|
||||
.cfi_def_cfa_offset 8
|
||||
movl %esp, %ebp
|
||||
.cfi_offset 5, -8
|
||||
.cfi_def_cfa_register 5
|
||||
pushl %ebx
|
||||
subl $20, %esp
|
||||
# watch-notconst2.c:30
|
||||
.loc 1 30 0
|
||||
movl 8(%ebp), %ebx
|
||||
.cfi_offset 3, -12
|
||||
# watch-notconst2.c:32
|
||||
.loc 1 32 0
|
||||
movl $2, (%esp)
|
||||
call g
|
||||
.LVL1:
|
||||
# watch-notconst2.c:34
|
||||
.loc 1 34 0
|
||||
movl %ebx, 8(%ebp)
|
||||
# watch-notconst2.c:35
|
||||
.loc 1 35 0
|
||||
addl $20, %esp
|
||||
popl %ebx
|
||||
.cfi_restore 3
|
||||
popl %ebp
|
||||
.cfi_restore 5
|
||||
.cfi_def_cfa 4, 4
|
||||
.LVL2:
|
||||
# watch-notconst2.c:34
|
||||
.loc 1 34 0
|
||||
jmp g
|
||||
.cfi_endproc
|
||||
.LFE0:
|
||||
.size f, .-f
|
||||
.Letext0:
|
||||
.section .debug_loc,"",@progbits
|
||||
.Ldebug_loc0:
|
||||
.LLST0:
|
||||
.long .LVL0-.Ltext0 # Location list begin address (*.LLST0)
|
||||
.long .LVL1-.Ltext0 # Location list end address (*.LLST0)
|
||||
.value 0x2 # Location expression size
|
||||
.byte 0x35 # DW_OP_lit5
|
||||
.byte 0x9f # DW_OP_stack_value
|
||||
.long .LVL1-.Ltext0 # Location list begin address (*.LLST0)
|
||||
.long .LVL2-.Ltext0 # Location list end address (*.LLST0)
|
||||
.value 0x1 # Location expression size
|
||||
.byte 0x53 # DW_OP_reg3
|
||||
.long 0x0 # Location list terminator begin (*.LLST0)
|
||||
.long 0x0 # Location list terminator end (*.LLST0)
|
||||
.section .debug_info
|
||||
.long 0x5c # Length of Compilation Unit Info
|
||||
.value 0x3 # DWARF version number
|
||||
.long .Ldebug_abbrev0 # Offset Into Abbrev. Section
|
||||
.byte 0x4 # Pointer Size (in bytes)
|
||||
.uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
|
||||
.long .LASF0 # DW_AT_producer: "GNU C 4.4.3 20100127 (Red Hat 4.4.3-4)"
|
||||
.byte 0x1 # DW_AT_language
|
||||
.long .LASF1 # DW_AT_name: "watch-notconst2.c"
|
||||
.long .LASF2 # DW_AT_comp_dir: ""
|
||||
.long .Ltext0 # DW_AT_low_pc
|
||||
.long .Letext0 # DW_AT_high_pc
|
||||
.long .Ldebug_line0 # DW_AT_stmt_list
|
||||
.uleb128 0x2 # (DIE (0x25) DW_TAG_subprogram)
|
||||
.byte 0x1 # DW_AT_external
|
||||
.ascii "f\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (watch-notconst2.c)
|
||||
.byte 0x1d # DW_AT_decl_line
|
||||
.byte 0x1 # DW_AT_prototyped
|
||||
.long 0x58 # DW_AT_type
|
||||
.long .LFB0 # DW_AT_low_pc
|
||||
.long .LFE0 # DW_AT_high_pc
|
||||
.byte 0x1 # DW_AT_frame_base
|
||||
.byte 0x9c # DW_OP_call_frame_cfa
|
||||
.long 0x58 # DW_AT_sibling
|
||||
.uleb128 0x3 # (DIE (0x3e) DW_TAG_formal_parameter)
|
||||
.ascii "i\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (watch-notconst2.c)
|
||||
.byte 0x1d # DW_AT_decl_line
|
||||
.long 0x58 # DW_AT_type
|
||||
.byte 0x2 # DW_AT_location
|
||||
.byte 0x91 # DW_OP_fbreg
|
||||
.sleb128 0
|
||||
.uleb128 0x4 # (DIE (0x4a) DW_TAG_variable)
|
||||
.ascii "x\0" # DW_AT_name
|
||||
.byte 0x1 # DW_AT_decl_file (watch-notconst2.c)
|
||||
.byte 0x1f # DW_AT_decl_line
|
||||
.long 0x58 # DW_AT_type
|
||||
.long .LLST0 # DW_AT_location
|
||||
.byte 0x0 # end of children of DIE 0x25
|
||||
.uleb128 0x5 # (DIE (0x58) DW_TAG_base_type)
|
||||
.byte 0x4 # DW_AT_byte_size
|
||||
.byte 0x5 # DW_AT_encoding
|
||||
.ascii "int\0" # DW_AT_name
|
||||
.byte 0x0 # end of children of DIE 0xb
|
||||
.section .debug_abbrev
|
||||
.uleb128 0x1 # (abbrev code)
|
||||
.uleb128 0x11 # (TAG: DW_TAG_compile_unit)
|
||||
.byte 0x1 # DW_children_yes
|
||||
.uleb128 0x25 # (DW_AT_producer)
|
||||
.uleb128 0xe # (DW_FORM_strp)
|
||||
.uleb128 0x13 # (DW_AT_language)
|
||||
.uleb128 0xb # (DW_FORM_data1)
|
||||
.uleb128 0x3 # (DW_AT_name)
|
||||
.uleb128 0xe # (DW_FORM_strp)
|
||||
.uleb128 0x1b # (DW_AT_comp_dir)
|
||||
.uleb128 0xe # (DW_FORM_strp)
|
||||
.uleb128 0x11 # (DW_AT_low_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x12 # (DW_AT_high_pc)
|
||||
.uleb128 0x1 # (DW_FORM_addr)
|
||||
.uleb128 0x10 # (DW_AT_stmt_list)
|
||||
.uleb128 0x6 # (DW_FORM_data4)
|
||||
.byte 0x0
|
||||
.byte 0x0
|
||||
.uleb128 0x2 # (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 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 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 0x1 # (DW_AT_sibling)
|
||||
.uleb128 0x13 # (DW_FORM_ref4)
|
||||
.byte 0x0
|
||||
.byte 0x0
|
||||
.uleb128 0x3 # (abbrev code)
|
||||
.uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
|
||||
.byte 0x0 # 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 0xa # (DW_FORM_block1)
|
||||
.byte 0x0
|
||||
.byte 0x0
|
||||
.uleb128 0x4 # (abbrev code)
|
||||
.uleb128 0x34 # (TAG: DW_TAG_variable)
|
||||
.byte 0x0 # 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 0x6 # (DW_FORM_data4)
|
||||
.byte 0x0
|
||||
.byte 0x0
|
||||
.uleb128 0x5 # (abbrev code)
|
||||
.uleb128 0x24 # (TAG: DW_TAG_base_type)
|
||||
.byte 0x0 # 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 0x0
|
||||
.byte 0x0
|
||||
.byte 0x0
|
||||
.section .debug_pubnames,"",@progbits
|
||||
.long 0x14 # Length of Public Names Info
|
||||
.value 0x2 # DWARF Version
|
||||
.long .Ldebug_info0 # Offset of Compilation Unit Info
|
||||
.long 0x60 # Compilation Unit Length
|
||||
.long 0x25 # DIE offset
|
||||
.ascii "f\0" # external name
|
||||
.long 0x0
|
||||
.section .debug_aranges,"",@progbits
|
||||
.long 0x1c # Length of Address Ranges Info
|
||||
.value 0x2 # DWARF Version
|
||||
.long .Ldebug_info0 # Offset of Compilation Unit Info
|
||||
.byte 0x4 # Size of Address
|
||||
.byte 0x0 # Size of Segment Descriptor
|
||||
.value 0x0 # Pad to 8 byte boundary
|
||||
.value 0x0
|
||||
.long .Ltext0 # Address
|
||||
.long .Letext0-.Ltext0 # Length
|
||||
.long 0x0
|
||||
.long 0x0
|
||||
.section .debug_str,"MS",@progbits,1
|
||||
.LASF1:
|
||||
.string "watch-notconst2.c"
|
||||
.LASF2:
|
||||
.string ""
|
||||
.LASF0:
|
||||
.string "GNU C 4.4.3 20100127 (Red Hat 4.4.3-4)"
|
||||
.ident "GCC: (GNU) 4.4.3 20100127 (Red Hat 4.4.3-4)"
|
||||
.section .note.GNU-stack,"",@progbits
|
||||
35
gdb/testsuite/gdb.dwarf2/watch-notconst2.c
Normal file
35
gdb/testsuite/gdb.dwarf2/watch-notconst2.c
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
/* This testcase is part of GDB, the GNU debugger.
|
||||
|
||||
Copyright 2010 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/>. */
|
||||
|
||||
/* The original program corresponding to watch-notconst2.S.
|
||||
|
||||
This program is not compiled; the .S version is used instead.
|
||||
|
||||
The purpose of this test is to see if GDB can still watch the
|
||||
variable `x' even when we compile the program using -O2
|
||||
optimization. */
|
||||
|
||||
extern int g (int j);
|
||||
|
||||
int
|
||||
f (int i)
|
||||
{
|
||||
int x = 5;
|
||||
g (2);
|
||||
x = i;
|
||||
return g (x);
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue