tjh.dev
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Documentation/kbuild/llvm.rst
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Documentation/kbuild/llvm.rst
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ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make CC=clang
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``CROSS_COMPILE`` is not used to prefix the Clang compiler binary, instead
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``CROSS_COMPILE`` is used to set a command line flag: ``--target <triple>``. For
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example: ::
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clang --target aarch64-linux-gnu foo.c
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LLVM Utilities
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--------------
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ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make CC=clang
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``CROSS_COMPILE`` is not used to prefix the Clang compiler binary, instead
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``CROSS_COMPILE`` is used to set a command line flag: ``--target=<triple>``. For
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example: ::
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clang --target=aarch64-linux-gnu foo.c
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LLVM Utilities
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--------------
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scripts/kallsyms.c
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scripts/kallsyms.c
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static bool is_ignored_symbol(const char *name, char type)
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{
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static const char * const ignored_symbols[] = {
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/*
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* Symbols which vary between passes. Passes 1 and 2 must have
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NULL
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};
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static const char * const ignored_prefixes[] = {
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"$", /* local symbols for ARM, MIPS, etc. */
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".LASANPC", /* s390 kasan local symbols */
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NULL
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};
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static const char * const ignored_suffixes[] = {
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"_from_arm", /* arm */
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"_from_thumb", /* arm */
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NULL
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};
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const char * const *p;
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/* Exclude symbols which vary between passes. */
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for (p = ignored_symbols; *p; p++)
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if (!strcmp(name, *p))
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return true;
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int l = strlen(name) - strlen(*p);
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if (l >= 0 && !strcmp(name + l, *p))
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return true;
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}
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···
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static bool is_ignored_symbol(const char *name, char type)
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{
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/* Symbol names that exactly match to the following are ignored.*/
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static const char * const ignored_symbols[] = {
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/*
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* Symbols which vary between passes. Passes 1 and 2 must have
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NULL
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};
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/* Symbol names that begin with the following are ignored.*/
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static const char * const ignored_prefixes[] = {
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"$", /* local symbols for ARM, MIPS, etc. */
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".LASANPC", /* s390 kasan local symbols */
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NULL
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};
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/* Symbol names that end with the following are ignored.*/
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static const char * const ignored_suffixes[] = {
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"_from_arm", /* arm */
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"_from_thumb", /* arm */
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NULL
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};
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/* Symbol names that contain the following are ignored.*/
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static const char * const ignored_matches[] = {
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".long_branch.", /* ppc stub */
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".plt_branch.", /* ppc stub */
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NULL
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};
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const char * const *p;
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for (p = ignored_symbols; *p; p++)
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if (!strcmp(name, *p))
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return true;
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int l = strlen(name) - strlen(*p);
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if (l >= 0 && !strcmp(name + l, *p))
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return true;
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}
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for (p = ignored_matches; *p; p++) {
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if (strstr(name, *p))
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return true;
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}
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