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TheRock/debug-tools/rocgdb/source/gdb/testsuite/gdb.trace/range-stepping.c
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

59 lines
1.8 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2013-2024 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/>. */
#ifdef SYMBOL_PREFIX
#define SYMBOL(str) SYMBOL_PREFIX #str
#else
#define SYMBOL(str) #str
#endif
/* `set_point' further below is the label where we'll set tracepoints
at. The insn at the label must the large enough to fit a fast
tracepoint jump. */
#if (defined __x86_64__ || defined __i386__)
# define NOP " .byte 0xe9,0x00,0x00,0x00,0x00\n" /* jmp $+5 (5-byte nop) */
#elif (defined __aarch64__)
# define NOP " nop\n"
#else
# define NOP "" /* port me */
#endif
int
main(void)
{
/* Note: 'volatile' is used to make sure the compiler doesn't
optimize out these variables. We want to be sure instructions
are generated for accesses. */
volatile int i = 0;
/* Generate a single line with a label in the middle where we can
place either a trap tracepoint or a fast tracepoint. */
#define LINE_WITH_FAST_TRACEPOINT \
do { \
i = 1; \
asm (" .global " SYMBOL (set_point) "\n" \
SYMBOL (set_point) ":\n" \
NOP \
); \
i = 2; \
} while (0)
LINE_WITH_FAST_TRACEPOINT; /* location 1 */
return 0;
}