[Crash-utility] [PATCH v2 1/3] [ppc] Support PPC32 Core analysis on PPC64 host
This patch enables crash on PPC64 to analyze the cores generated
on a PPC32 machine. I plan to look at adding support for PPC32 Kdump
core in the following patches. Running crash on a PPC32 board is not
a good thing to do. Hence using a PPC64 machine to do the same. There
is no support for analyzing target of a different endian-ness. I will
take a look at that later, once the PPC32 crash support is completed.
Note: The gdb-7.xx.patch hard codes the CFLAGS to include -m64 option
if we are building on a ppc64 host. So, we have to build from a 'ppc'
environment(Using setarch ppc).
Signed-off-by: Suzuki K. Poulose <suzuki(a)in.ibm.com>
---
configure.c | 14 +++++++++++++-
netdump.c | 6 ++++++
2 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/configure.c b/configure.c
index 00e7bb2..a1858a4 100755
--- a/configure.c
+++ b/configure.c
@@ -134,11 +134,13 @@ char *get_extra_flags(char *);
#define TARGET_CFLAGS_ARM_ON_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_ARM_ON_X86_64 "TARGET_CFLAGS=-m32
-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_X86_ON_X86_64 "TARGET_CFLAGS=-m32
-D_FILE_OFFSET_BITS=64"
+#define TARGET_CFLAGS_PPC_ON_PPC64 "TARGET_CFLAGS=-m32 -D_FILE_OFFSET_BITS=64
-fPIC"
#define GDB_TARGET_DEFAULT "GDB_CONF_FLAGS="
#define GDB_TARGET_ARM_ON_X86 "GDB_CONF_FLAGS=--target=arm-elf-linux"
#define GDB_TARGET_ARM_ON_X86_64 "GDB_CONF_FLAGS=--target=arm-elf-linux
CFLAGS=-m32"
#define GDB_TARGET_X86_ON_X86_64 "GDB_CONF_FLAGS=--target=i686-pc-linux-gnu
CFLAGS=-m32"
+#define GDB_TARGET_PPC_ON_PPC64 "GDB_CONF_FLAGS=--target=ppc-elf-linux
CFLAGS=-m32"
/*
* The original plan was to allow the use of a particular version
@@ -361,6 +363,12 @@ get_current_configuration(struct supported_gdb_version *sp)
* Build an X86 crash binary on an X86_64 host.
*/
target_data.target = X86;
+ } else if ((target_data.target == PPC64) &&
+ (name_to_target((char *)target_data.target_as_param) == PPC)) {
+ /*
+ * Build an PPC crash binary on an PPC64 host.
+ */
+ target_data.target = PPC;
} else if (name_to_target((char *)target_data.target_as_param) ==
target_data.host) {
if ((target_data.initial_gdb_target != UNKNOWN) &&
@@ -556,7 +564,11 @@ build_configure(struct supported_gdb_version *sp)
break;
case PPC:
target = TARGET_PPC;
- target_CFLAGS = TARGET_CFLAGS_PPC;
+ if (target_data.host == PPC64) {
+ target_CFLAGS = TARGET_CFLAGS_PPC_ON_PPC64;
+ gdb_conf_flags = GDB_TARGET_PPC_ON_PPC64;
+ } else
+ target_CFLAGS = TARGET_CFLAGS_PPC;
break;
case IA64:
target = TARGET_IA64;
diff --git a/netdump.c b/netdump.c
index 4011f36..c0ee9ae 100644
--- a/netdump.c
+++ b/netdump.c
@@ -183,6 +183,12 @@ is_netdump(char *file, ulong source_query)
goto bailout;
break;
+ case EM_PPC:
+ if (machine_type_mismatch(file, "PPC", NULL,
+ source_query))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL,
source_query))