a71123977e
This change removes the use of hardcoded absolute "/usr/include/elfutils" paths from the perf build. The problem with hardcoded paths is that it prevents them from being overridden by $prefix or by -I in CFLAGS (e.g., for cross-compiling purposes). Instead, just include the "elfutils/" subdirectory as a relative path when files are needed from that directory. Tested by building perf: - Cross-compiled for ARM on x86_64 - Built natively on x86_64 - Built on x86_64 with /usr/include/elfutils moved to another location and manually included in CFLAGS Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1289945793-31441-1-git-send-email-rmorell@nvidia.com> Signed-off-by: Robert Morell <rmorell@nvidia.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
131 lines
1.8 KiB
Makefile
131 lines
1.8 KiB
Makefile
define SOURCE_HELLO
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#include <stdio.h>
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int main(void)
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{
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return puts(\"hi\");
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}
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endef
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ifndef NO_DWARF
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define SOURCE_DWARF
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#include <dwarf.h>
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#include <elfutils/libdw.h>
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#include <elfutils/version.h>
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#ifndef _ELFUTILS_PREREQ
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#error
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#endif
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int main(void)
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{
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Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
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return (long)dbg;
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}
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endef
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endif
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define SOURCE_LIBELF
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#include <libelf.h>
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int main(void)
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{
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Elf *elf = elf_begin(0, ELF_C_READ, 0);
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return (long)elf;
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}
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endef
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define SOURCE_GLIBC
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#include <gnu/libc-version.h>
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int main(void)
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{
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const char *version = gnu_get_libc_version();
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return (long)version;
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}
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endef
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define SOURCE_ELF_MMAP
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#include <libelf.h>
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int main(void)
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{
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Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
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return (long)elf;
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}
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endef
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ifndef NO_NEWT
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define SOURCE_NEWT
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#include <newt.h>
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int main(void)
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{
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newtInit();
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newtCls();
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return newtFinished();
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}
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endef
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endif
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ifndef NO_LIBPERL
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define SOURCE_PERL_EMBED
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#include <EXTERN.h>
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#include <perl.h>
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int main(void)
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{
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perl_alloc();
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return 0;
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}
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endef
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endif
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ifndef NO_LIBPYTHON
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define SOURCE_PYTHON_EMBED
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#include <Python.h>
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int main(void)
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{
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Py_Initialize();
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return 0;
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}
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endef
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endif
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define SOURCE_BFD
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#include <bfd.h>
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int main(void)
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{
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bfd_demangle(0, 0, 0);
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return 0;
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}
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endef
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define SOURCE_CPLUS_DEMANGLE
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extern char *cplus_demangle(const char *, int);
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int main(void)
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{
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cplus_demangle(0, 0);
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return 0;
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}
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endef
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define SOURCE_STRLCPY
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#include <stdlib.h>
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extern size_t strlcpy(char *dest, const char *src, size_t size);
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int main(void)
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{
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strlcpy(NULL, NULL, 0);
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return 0;
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}
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endef
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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 = $(shell sh -c \
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'TMP="$(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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