56 lines
1.2 KiB
Makefile
56 lines
1.2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# taken from perf which was based on Linux Kbuild
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# try-cc
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# Usage: option = $(call try-cc, source-to-build, cc-options)
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try-cc = $(shell sh -c \
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'TMP="$(BUILD_OUTPUT)$(TMPOUT).$$$$"; \
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echo "$(1)" | \
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$(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \
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rm -f "$$TMP"')
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define SOURCE_PTRACE
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#include <stdio.h>
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#include <sys/ptrace.h>
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int main (void)
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{
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int ret;
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ret = ptrace(PTRACE_ATTACH, 0, NULL, 0);
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ptrace(PTRACE_TRACEME, 0, NULL, 0);
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ptrace(PTRACE_GETSIGINFO, 0, NULL, NULL);
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ptrace(PTRACE_GETEVENTMSG, 0, NULL, NULL);
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ptrace(PTRACE_SETOPTIONS, NULL, NULL,
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PTRACE_O_TRACEFORK |
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PTRACE_O_TRACEVFORK |
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PTRACE_O_TRACECLONE |
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PTRACE_O_TRACEEXIT);
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ptrace(PTRACE_CONT, NULL, NULL, 0);
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ptrace(PTRACE_DETACH, 0, NULL, NULL);
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ptrace(PTRACE_SETOPTIONS, 0, NULL,
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PTRACE_O_TRACEFORK |
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PTRACE_O_TRACEVFORK |
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PTRACE_O_TRACECLONE |
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PTRACE_O_TRACEEXIT);
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return ret;
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}
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endef
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define SOURCE_AUDIT
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#include <stdio.h>
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#include <libaudit.h>
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int main (void)
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{
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char *name;
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int ret;
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ret = audit_detect_machine();
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if (ret < 0)
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return ret;
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name = audit_syscall_to_name(1, ret);
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if (!name)
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return -1;
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return ret;
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}
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endef
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