[PATCH v1 1/4] LoongArch: Change DWARF2_CIE_DATA_ALIGNMENT to -4 for loongarch32

[mengqinggang]

From: Jiajie Chen <c@jia.je>

---
 gas/config/tc-loongarch.c | 5 +++++
 gas/config/tc-loongarch.h | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c
index be3dac208a5..4949d1759e4 100644
--- a/gas/config/tc-loongarch.c
+++ b/gas/config/tc-loongarch.c
@@ -112,6 +112,9 @@ const char EXP_CHARS[] = "eE";
 /* or    0d1.2345e12.  */
 const char FLT_CHARS[] = "rRsSfFdDxXpP";
 
+/* The dwarf2 data alignment, adjusted for 32 or 64 bit.  */
+int loongarch_cie_data_alignment;
+
 const char md_shortopts[] = "O::g::G:";
 
 static const char default_arch[] = DEFAULT_ARCH;
@@ -516,6 +519,8 @@ md_begin ()
   /* FIXME: expressionS use 'offsetT' as constant,
    * we want this is 64-bit type.  */
   assert (8 <= sizeof (offsetT));
+
+  loongarch_cie_data_alignment = LARCH_opts.ase_lp64 ? (-8) : (-4);
 }
 
 /* Called just before the assembler exits.  */
diff --git a/gas/config/tc-loongarch.h b/gas/config/tc-loongarch.h
index ed20bcc202e..3d33da6ccb8 100644
--- a/gas/config/tc-loongarch.h
+++ b/gas/config/tc-loongarch.h
@@ -117,7 +117,8 @@ extern int loongarch_force_relocation (struct fix *);
    FDE Code Alignment Factor (DWARF2_LINE_MIN_INSN_LENGTH) should be 1
    because DW_CFA_advance_loc need to be relocated in bytes
    when linker relaxation.  */
-#define DWARF2_CIE_DATA_ALIGNMENT     (-8)
+extern int loongarch_cie_data_alignment;
+#define DWARF2_CIE_DATA_ALIGNMENT loongarch_cie_data_alignment
 #define DWARF2_DEFAULT_RETURN_COLUMN  1	    /* FDE Return Address Register.  */
 
 #define tc_cfi_frame_initial_instructions	\
-- 
2.34.1