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authorYao Qi <yao.qi@linaro.org>2018-01-17 12:48:52 +0000
committerYao Qi <yao.qi@linaro.org>2018-01-17 12:52:14 +0000
commit94485cac9629ca3e5489014e1b704e35f988d3e3 (patch)
tree794267530bbf20a3da86322f0b94e1e89474b288 /gdb/aarch64-linux-tdep.c
parent862f0945fb83319efee9c621a3434384f1882270 (diff)
Don't pass -m64 to libcc1 on aarch64-linux.
Nowadays, if we use "compile" on aarch64-linux, we'll get the following error, (gdb) compile code -- ; aarch64-none-linux-gnu-gcc: error: unrecognized command line option '-m64' because the default gcc_target_options returns "-m64" and "-mcmodel=large", neither is useful to aarch64-linux. gdb: 2018-01-17 Yao Qi <yao.qi@linaro.org> * aarch64-linux-tdep.c (aarch64_linux_gcc_target_options): New function. (aarch64_linux_init_abi): Install it to gdbarch hook gcc_target_options.
Diffstat (limited to 'gdb/aarch64-linux-tdep.c')
-rw-r--r--gdb/aarch64-linux-tdep.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
index 1a82406aae..1f3e888e40 100644
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -1001,6 +1001,15 @@ aarch64_linux_syscall_record (struct regcache *regcache,
return 0;
}
+/* Implement the "gcc_target_options" gdbarch method. */
+
+static char *
+aarch64_linux_gcc_target_options (struct gdbarch *gdbarch)
+{
+ /* GCC doesn't know "-m64". */
+ return NULL;
+}
+
static void
aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@@ -1225,6 +1234,8 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location);
set_gdbarch_displaced_step_hw_singlestep (gdbarch,
aarch64_displaced_step_hw_singlestep);
+
+ set_gdbarch_gcc_target_options (gdbarch, aarch64_linux_gcc_target_options);
}
void