4e277d0d83
There's no reason for making the test__arch_unwind_sample declaration per arch. Currently that's done 2 different ways either with a declaration in arch-tests.h or with an arch define. Unify all this with an unconditional declaration in tests.h. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: masayoshi mizuma <msys.mizuma@gmail.com> Link: http://lore.kernel.org/lkml/20210513174614.2242210-1-robh@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <string.h>
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#include "perf_regs.h"
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#include "thread.h"
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#include "map.h"
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#include "maps.h"
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#include "event.h"
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#include "debug.h"
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#include "tests/tests.h"
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#define STACK_SIZE 8192
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static int sample_ustack(struct perf_sample *sample,
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struct thread *thread, u64 *regs)
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{
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struct stack_dump *stack = &sample->user_stack;
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struct map *map;
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unsigned long sp;
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u64 stack_size, *buf;
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buf = malloc(STACK_SIZE);
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if (!buf) {
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pr_debug("failed to allocate sample uregs data\n");
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return -1;
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}
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sp = (unsigned long) regs[PERF_REG_POWERPC_R1];
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map = maps__find(thread->maps, (u64)sp);
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if (!map) {
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pr_debug("failed to get stack map\n");
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free(buf);
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return -1;
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}
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stack_size = map->end - sp;
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stack_size = stack_size > STACK_SIZE ? STACK_SIZE : stack_size;
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memcpy(buf, (void *) sp, stack_size);
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stack->data = (char *) buf;
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stack->size = stack_size;
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return 0;
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}
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int test__arch_unwind_sample(struct perf_sample *sample,
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struct thread *thread)
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{
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struct regs_dump *regs = &sample->user_regs;
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u64 *buf;
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buf = calloc(1, sizeof(u64) * PERF_REGS_MAX);
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if (!buf) {
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pr_debug("failed to allocate sample uregs data\n");
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return -1;
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}
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perf_regs_load(buf);
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regs->abi = PERF_SAMPLE_REGS_ABI;
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regs->regs = buf;
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regs->mask = PERF_REGS_MASK;
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return sample_ustack(sample, thread, buf);
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}
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