Add support to build for ARM targets. This includes native ARM build, and also
ARM on x86 (which works because of the same word size and endianness).
Signed-off-by: Jan Karlsson <jan.karlsson at sonyericsson.com>
Signed-off-by: Thomas F?nge <thomas.fange at sonyericsson.com>
Signed-off-by: Mika Westerberg <ext-mika.1.westerberg at nokia.com>
---
Makefile | 18 +++++++++++++++---
configure.c | 32 +++++++++++++++++++++++++++++++-
2 files changed, 46 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
index c2a2ac0..038c887 100644
--- a/Makefile
+++ b/Makefile
@@ -32,6 +32,12 @@ ifeq ($(ARCH), ppc64)
CONF_FLAGS = -m64
endif
+ifeq ($(TARGET), ARM)
+ifeq ($(ARCH), i386)
+GDB_CONF_FLAGS = --target=arm-elf-linux
+endif
+endif
+
#
# GDB, GDB_FILES, GDB_OFILES and GDB_PATCH_FILES will be configured automatically by configure
#
@@ -240,11 +246,17 @@ GDB_INCLUDE_DIRECTORY=./${GDB}/include
REDHATFLAGS=-DREDHAT
+# target could be set on command line when invoking make. Like: make target=ARM
+# otherwise target will be the same as the host
+ifneq ($(target),)
+CONF_TARGET_FLAG="-t$(target)"
+endif
+
# To build the extensions library by default, uncomment the third command
# line below. Otherwise they can be built by entering "make extensions".
all: make_configure
- @./configure -p "RPMPKG=${RPMPKG}" -b
+ @./configure ${CONF_TARGET_FLAG} -p "RPMPKG=${RPMPKG}" -b
@make --no-print-directory gdb_merge
# @make --no-print-directory extensions
@@ -254,7 +266,7 @@ gdb_merge: force
@echo "${LDFLAGS} -lz -ldl -rdynamic" > ${GDB}/gdb/mergelibs
@echo "../../${PROGRAM} ../../${PROGRAM}lib.a" > ${GDB}/gdb/mergeobj
@if [ ! -f ${GDB}/config.status ]; then \
- (cd ${GDB}; ./configure --with-separate-debug-dir=/usr/lib/debug \
+ (cd ${GDB}; ./configure ${GDB_CONF_FLAGS} --with-separate-debug-dir=/usr/lib/debug \
--with-bugurl="" --with-expat=no --with-python=no; \
make --no-print-directory;) \
else (cd ${GDB}/gdb; make --no-print-directory;); fi
@@ -591,7 +603,7 @@ dis:
objdump --disassemble --line-numbers ${PROGRAM} > ${PROGRAM}.dis
extensions: make_configure
- @./configure -q -b
+ @./configure ${CONF_TARGET_FLAG} -q -b
@make --no-print-directory do_extensions
do_extensions:
diff --git a/configure.c b/configure.c
index 627bb83..a4b3a0e 100755
--- a/configure.c
+++ b/configure.c
@@ -90,6 +90,7 @@ void make_spec_file(struct supported_gdb_version *);
#undef S390X
#undef PPC64
#undef X86_64
+#undef ARM
#define X86 1
#define ALPHA 2
@@ -99,6 +100,7 @@ void make_spec_file(struct supported_gdb_version *);
#define S390X 6
#define PPC64 7
#define X86_64 8
+#define ARM 9
#define TARGET_X86 "TARGET=X86"
#define TARGET_ALPHA "TARGET=ALPHA"
@@ -108,6 +110,7 @@ void make_spec_file(struct supported_gdb_version *);
#define TARGET_S390X "TARGET=S390X"
#define TARGET_PPC64 "TARGET=PPC64"
#define TARGET_X86_64 "TARGET=X86_64"
+#define TARGET_ARM "TARGET=ARM"
#define TARGET_CFLAGS_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_ALPHA "TARGET_CFLAGS="
@@ -117,6 +120,7 @@ void make_spec_file(struct supported_gdb_version *);
#define TARGET_CFLAGS_S390X "TARGET_CFLAGS="
#define TARGET_CFLAGS_PPC64 "TARGET_CFLAGS=-m64"
#define TARGET_CFLAGS_X86_64 "TARGET_CFLAGS="
+#define TARGET_CFLAGS_ARM "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
/*
* The original plan was to allow the use of a particular version
@@ -193,6 +197,7 @@ struct target_data {
char gdb_version[MAXSTRLEN];
char release[MAXSTRLEN];
struct stat statbuf;
+ const char *target_as_param;
} target_data = { 0 };
int
@@ -203,7 +208,7 @@ main(int argc, char **argv)
sp = setup_gdb_defaults();
- while ((c = getopt(argc, argv, "gsqnWwubdr:p:P:")) > 0) {
+ while ((c = getopt(argc, argv, "gsqnWwubdr:p:P:t:")) > 0) {
switch (c) {
case 'q':
target_data.flags |= QUIET;
@@ -236,6 +241,9 @@ main(int argc, char **argv)
case 'g':
gdb_configure(sp);
break;
+ case 't':
+ target_data.target_as_param = optarg;
+ break;
}
}
@@ -274,6 +282,21 @@ get_current_configuration(void)
#ifdef __x86_64__
target_data.target = X86_64;
#endif
+#ifdef __arm__
+ target_data.target = ARM;
+#endif
+ /* override target if specified on command line */
+ if (target_data.target_as_param != 0) {
+ if (target_data.target == X86 &&
+ strcmp(target_data.target_as_param, "ARM") == 0) {
+ /* debugging of ARM core files only supported on X86 */
+ target_data.target = ARM;
+ } else {
+ fprintf(stderr,
+ "target \"%s\" is not supported on this architecture\n",
+ target_data.target_as_param);
+ }
+ }
if ((fp = fopen("Makefile", "r")) == NULL) {
perror("Makefile");
@@ -374,6 +397,9 @@ show_configuration(void)
case X86_64:
printf("TARGET: X86_64\n");
break;
+ case ARM:
+ printf("TARGET: ARM\n");
+ break;
}
if (strlen(target_data.program)) {
@@ -437,6 +463,10 @@ build_configure(struct supported_gdb_version *sp)
target = TARGET_X86_64;
target_CFLAGS = TARGET_CFLAGS_X86_64;
break;
+ case ARM:
+ target = TARGET_ARM;
+ target_CFLAGS = TARGET_CFLAGS_ARM;
+ break;
}
makefile_setup(&fp1, &fp2);
--
1.5.6.5
