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authorLulu Cai <cailulu@loongson.cn>2023-10-31 16:11:29 +0800
committerliuzhensong <liuzhensong@loongson.cn>2023-12-25 11:46:22 +0800
commit26265e7fdf19d461563388495b6799eb3719f80a (patch)
tree3aaf2793a448b90fd5d55097ee5dbf9efa12ad4c /opcodes
parent051b3736af7b9dc47a37e31a9c82556e942d1ed4 (diff)
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LoongArch: Add new relocs and macro for TLSDESC.
The normal DESC instruction sequence is: pcalau12i $a0,%desc_pc_hi20(var) #R_LARCH_TLS_DESC_PC_HI20 addi.d $a0,$a0,%desc_pc_lo12(var) #R_LARCH_TLS_DESC_PC_LO12 ld.d $ra,$a0,%desc_ld(var) #R_LARCH_TLS_DESC_LD jirl $ra,$ra,%desc_call(var) #R_LARCH_TLS_DESC_CALL add.d $a0,$a0,$tp
Diffstat (limited to 'opcodes')
-rw-r--r--opcodes/loongarch-opc.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/opcodes/loongarch-opc.c b/opcodes/loongarch-opc.c
index b47817f..a632373 100644
--- a/opcodes/loongarch-opc.c
+++ b/opcodes/loongarch-opc.c
@@ -303,6 +303,55 @@ const char *const loongarch_x_normal_name[32] =
"jirl $zero,%1,0;", \
0, 0
+/* For TLS_DESC32 pcrel. */
+#define INSN_LA_TLS_DESC32 \
+ "pcalau12i $r4,%%desc_pc_hi20(%2);" \
+ "addi.w $r4,$r4,%%desc_pc_lo12(%2);" \
+ "ld.w $r1,$r4,%%desc_ld(%2);" \
+ "jirl $r1,$r1,%%desc_call(%2);", \
+ &LARCH_opts.ase_ilp32, \
+ &LARCH_opts.ase_lp64
+
+/* For TLS_DESC32 abs. */
+#define INSN_LA_TLS_DESC32_ABS \
+ "lu12i.w $r4,%%desc_hi20(%2);" \
+ "ori $r4,$r4,%%desc_lo12(%2);" \
+ "ld.w $r1,$r4,%%desc_ld(%2);" \
+ "jirl $r1,$r1,%%desc_call(%2);", \
+ &LARCH_opts.ase_gabs, \
+ &LARCH_opts.ase_lp64
+
+/* For TLS_DESC64 pcrel. */
+#define INSN_LA_TLS_DESC64 \
+ "pcalau12i $r4,%%desc_pc_hi20(%2);" \
+ "addi.d $r4,$r4,%%desc_pc_lo12(%2);" \
+ "ld.d $r1,$r4,%%desc_ld(%2);" \
+ "jirl $r1,$r1,%%desc_call(%2);", \
+ &LARCH_opts.ase_lp64, 0
+
+/* For TLS_DESC64 large pcrel. */
+#define INSN_LA_TLS_DESC64_LARGE_PCREL \
+ "pcalau12i $r4,%%desc_pc_hi20(%3);" \
+ "addi.d %2,$r0,%%desc_pc_lo12(%3);" \
+ "lu32i.d %2,%%desc64_pc_lo20(%3);" \
+ "lu52i.d %2,%2,%%desc64_pc_hi12(%3);" \
+ "add.d $r4,$r4,%2;" \
+ "ld.d $r1,$r4,%%desc_ld(%3);" \
+ "jirl $r1,$r1,%%desc_call(%3);", \
+ &LARCH_opts.ase_lp64, \
+ &LARCH_opts.ase_gabs
+
+/* For TLS_DESC64 large abs. */
+#define INSN_LA_TLS_DESC64_LARGE_ABS \
+ "lu12i.w $r4,%%desc_hi20(%2);" \
+ "ori $r4,$r4,%%desc_lo12(%2);" \
+ "lu32i.d $r4,%%desc64_lo20(%2);" \
+ "lu52i.d $r4,$r4,%%desc64_hi12(%2);" \
+ "ld.d $r1,$r4,%%desc_ld(%2);" \
+ "jirl $r1,$r1,%%desc_call(%2);", \
+ &LARCH_opts.ase_gabs, \
+ &LARCH_opts.ase_gpcr
+
static struct loongarch_opcode loongarch_macro_opcodes[] =
{
/* match, mask, name, format, macro, include, exclude, pinfo. */
@@ -352,6 +401,11 @@ static struct loongarch_opcode loongarch_macro_opcodes[] =
{ 0, 0, "call36", "la", INSN_LA_CALL, 0 },
{ 0, 0, "tail36", "r,la", INSN_LA_TAIL, 0 },
{ 0, 0, "pcaddi", "r,la", "pcaddi %1, %%pcrel_20(%2)", &LARCH_opts.ase_ilp32, 0, 0 },
+ { 0, 0, "la.tls.desc", "r,l", INSN_LA_TLS_DESC32_ABS, 0 },
+ { 0, 0, "la.tls.desc", "r,l", INSN_LA_TLS_DESC32, 0 },
+ { 0, 0, "la.tls.desc", "r,l", INSN_LA_TLS_DESC64_LARGE_ABS, 0 },
+ { 0, 0, "la.tls.desc", "r,l", INSN_LA_TLS_DESC64, 0 },
+ { 0, 0, "la.tls.desc", "r,r,l", INSN_LA_TLS_DESC64_LARGE_PCREL,0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminate the list. */
};