gdb: LoongArch: Set the correct XML syscall filename

Now, there exists syscalls/loongarch-linux.xml, let us set the correct
XML syscall filename for LoongArch, otherwise GDB won't be able to find
the correct XML file to open and get the syscalls definitions.

It should install the package expat-devel (a library for XML parsing)
and configure --with-expat (done by default if libexpat is installed
and found at configure time) for compiling gdb in this case.

Without this patch:

(gdb) catch syscall
warning: There is no XML file to open.
warning: GDB will not be able to display syscall names nor to verify if
any provided syscall numbers are valid.
Catchpoint 1 (any syscall)

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Approved-By: John Baldwin <jhb@FreeBSD.org>

diff --git a/gdb/data-directory/Makefile.in b/gdb/data-directory/Makefile.in
index 2a40be4ade0acbdcb448bacafc74563a09425d8a..edfa52c2217bf127b90945f88d27af96b9d31089 100644 (file)
--- a/gdb/data-directory/Makefile.in
+++ b/gdb/data-directory/Makefile.in
@@ -53,6 +53,7 @@ GEN_SYSCALLS_FILES = \
        amd64-linux.xml \
        arm-linux.xml \
        i386-linux.xml \
+       loongarch-linux.xml \
        mips-n32-linux.xml \
        mips-n64-linux.xml \
        mips-o32-linux.xml \

diff --git a/gdb/loongarch-linux-tdep.c b/gdb/loongarch-linux-tdep.c
index 5ea648acd8133a07101757a579f30a81c22c7718..1c7a7cf222c325dc3c9cce93503f6fc394399a42 100644 (file)
--- a/gdb/loongarch-linux-tdep.c
+++ b/gdb/loongarch-linux-tdep.c
@@ -27,6 +27,10 @@
 #include "target-descriptions.h"
 #include "trad-frame.h"
 #include "tramp-frame.h"
+#include "xml-syscall.h"
+
+/* The syscall's XML filename for LoongArch.  */
+#define XML_SYSCALL_FILENAME_LOONGARCH "syscalls/loongarch-linux.xml"
 
 /* Unpack an elf_gregset_t into GDB's register cache.  */
 
@@ -590,6 +594,9 @@ loongarch_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 
   tdep->syscall_next_pc = loongarch_linux_syscall_next_pc;
 
+  /* Set the correct XML syscall filename.  */
+  set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_LOONGARCH);
+
   /* Get the syscall number from the arch's register.  */
   set_gdbarch_get_syscall_number (gdbarch, loongarch_linux_get_syscall_number);
 }