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kpatch-build: Build with insn support only on x86_64 

kpatch-build/insn provides x86 instruction analysis, disable
the analyzer support when build on powerpc.

Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
This commit is contained in:
Kamalesh Babulal 2017-07-09 23:44:12 -04:00
parent a0adebf861
commit dde4e95fa4
2 changed files with 19 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
kpatch-build/Makefile
View File

@ -7,7 +7,13 @@ TARGETS = create-diff-object create-klp-module create-kpatch-module
SOURCES = create-diff-object.c kpatch-elf.c \ SOURCES = create-diff-object.c kpatch-elf.c \
create-klp-module.c \ create-klp-module.c \
create-kpatch-module.c \ create-kpatch-module.c \
lookup.c insn/insn.c insn/inat.c create-kpatch-module.c lookup.c
ifeq ($(ARCH),x86_64)
SOURCES += insn/insn.c insn/inat.c
INSN = insn/insn.o insn/inat.o
endif
all: $(TARGETS) all: $(TARGETS)
@ -17,7 +23,7 @@ all: $(TARGETS)
$(CC) -MMD -MP $(CFLAGS) -c -o $@ $< $(CC) -MMD -MP $(CFLAGS) -c -o $@ $<
create-diff-object: create-diff-object.o kpatch-elf.o \ create-diff-object: create-diff-object.o kpatch-elf.o \
lookup.o insn/insn.o insn/inat.o lookup.o $(INSN)
create-klp-module: create-klp-module.o kpatch-elf.o create-klp-module: create-klp-module.o kpatch-elf.o
create-kpatch-module: create-kpatch-module.o kpatch-elf.o create-kpatch-module: create-kpatch-module.o kpatch-elf.o

11
kpatch-build/create-diff-object.c
View File

@ -225,6 +225,7 @@ out:
log_debug("section %s has changed\n", sec->name); log_debug("section %s has changed\n", sec->name);
} }
#ifdef __x86_64__
/* /*
* Determine if a section has changed only due to a WARN* or might_sleep * Determine if a section has changed only due to a WARN* or might_sleep
* macro call's embedding of the line number into an instruction operand. * macro call's embedding of the line number into an instruction operand.
@ -330,6 +331,12 @@ static int kpatch_line_macro_change_only(struct section *sec)
return 1; return 1;
} }
#else
static int kpatch_line_macro_change_only(struct section *sec)
{
return 0;
}
#endif
static void kpatch_compare_sections(struct list_head *seclist) static void kpatch_compare_sections(struct list_head *seclist)
{ {
@ -868,6 +875,7 @@ static void kpatch_compare_correlated_elements(struct kpatch_elf *kelf)
kpatch_compare_symbols(&kelf->symbols); kpatch_compare_symbols(&kelf->symbols);
} }
#ifdef __x86_64__
static void rela_insn(struct section *sec, struct rela *rela, struct insn *insn) static void rela_insn(struct section *sec, struct rela *rela, struct insn *insn)
{ {
unsigned long insn_addr, start, end, rela_addr; unsigned long insn_addr, start, end, rela_addr;
@ -886,6 +894,9 @@ static void rela_insn(struct section *sec, struct rela *rela, struct insn *insn)
return; return;
} }
} }
#else
static void rela_insn(struct section *sec, struct rela *rela, struct insn *insn) { }
#endif
/* /*
* Mangle the relas a little. The compiler will sometimes use section symbols * Mangle the relas a little. The compiler will sometimes use section symbols