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https://sourceware.org/git/binutils-gdb.git
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30a1e6cc77
This commit is actually an update to make the parser in gdb/stap-probe.c be aware of all the possible prefixes that a probe argument can have. According to the section "Argument Format" in: <https://sourceware.org/systemtap/wiki/UserSpaceProbeImplementation> The bitness of the arguments can be 8, 16, 32 or 64 bits, signed or unsigned. Currently GDB recognizes only 32 and 64-bit arguments. This commit extends this. It also provides a testcase, only for x86_64 systems. gdb/ 2014-05-02 Sergio Durigan Junior <sergiodj@redhat.com> * stap-probe.c (enum stap_arg_bitness): New enums to represent 8 and 16-bit signed and unsigned arguments. Update comment. (stap_parse_probe_arguments): Extend code to handle such arguments. Use warning instead of complaint to notify about unrecognized bitness. gdb/testsuite/ 2014-05-02 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.arch/amd64-stap-optional-prefix.S (main): Add several probes to test for bitness recognition. * gdb.arch/amd64-stap-optional-prefix.exp (test_probe_value_without_reg): New procedure. Add code to test for different kinds of bitness.
43 lines
1.4 KiB
ArmAsm
43 lines
1.4 KiB
ArmAsm
/* Copyright (C) 2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <sys/sdt.h>
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.file "amd64-stap-optional-prefix.S"
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.text
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.globl main
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main:
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mov %rsp,%rbp
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pushq $42
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STAP_PROBE1(probe, foo, (%rsp))
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STAP_PROBE1(probe, bar, -8(%rbp))
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STAP_PROBE1(probe, foo_prefix, 8@(%rsp))
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STAP_PROBE1(probe, bar_prefix, 8@-8(%rbp))
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mov %rbp,%rsp
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STAP_PROBE1(probe, uint8_probe, 1@$8)
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STAP_PROBE1(probe, int8_probe, -1@$-8)
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STAP_PROBE1(probe, uint16_probe, 2@$16)
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STAP_PROBE1(probe, int16_probe, -2@$-16)
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STAP_PROBE1(probe, uint32_probe, 4@$32)
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STAP_PROBE1(probe, int32_probe, -4@$-32)
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STAP_PROBE1(probe, uint64_probe, 8@$64)
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STAP_PROBE1(probe, int64_probe, -8@$-64)
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STAP_PROBE1(probe, fail_probe, -7@$16)
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STAP_PROBE1(probe, fail2_probe, 23-@$16)
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xor %rax,%rax
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ret
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