Not append rela for absolute symbol

LoongArch: Not append rela for absolute symbol

Use la.global to get absolute symbol like la.abs.
la.global put address of a global symbol into a got
entry and append a rela for it, which will be used
to relocate by dynamic linker. Dynamic linker should
not relocate for got entry of absolute symbol as it
stores symval not symbol's address.

4 files changed, 25 insertions, 0 deletions

diff --git a/ld/testsuite/ld-loongarch-elf/abs-global.out b/ld/testsuite/ld-loongarch-elf/abs-global.out
new file mode 100644
index 0000000..3656652
--- /dev/null
+++ b/ld/testsuite/ld-loongarch-elf/abs-global.out
@@ -0,0 +1 @@
+abba
diff --git a/ld/testsuite/ld-loongarch-elf/abs-global.s b/ld/testsuite/ld-loongarch-elf/abs-global.s
new file mode 100644
index 0000000..93a5da6
--- /dev/null
+++ b/ld/testsuite/ld-loongarch-elf/abs-global.s
@@ -0,0 +1,5 @@
+.text
+.globl get_sym
+get_sym:
+ la.global $a0, sym
+ ret
diff --git a/ld/testsuite/ld-loongarch-elf/get_abs_global_sym.c b/ld/testsuite/ld-loongarch-elf/get_abs_global_sym.c
new file mode 100644
index 0000000..29781ad
--- /dev/null
+++ b/ld/testsuite/ld-loongarch-elf/get_abs_global_sym.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+extern int get_sym();
+int main() {
+	printf("%x\n", get_sym());
+	return 0;
+}
diff --git a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp b/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
index 4328f6e..6bef97c2 100644
--- a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
+++ b/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
@@ -130,6 +130,18 @@ if [istarget "loongarch64-*-*"] {
 		"a.binary" \
 	   ] \
       ]
+
+
+  run_ld_link_exec_tests [list \
+	[list \
+	    "get global abs symbol test" \
+	    "-Wl,-z norelro -Wl,--defsym sym=0xabba" \
+	    "" \
+	    { abs-global.s get_abs_global_sym.c} \
+	    "abs-global" \
+	    "abs-global.out" \
+	] \
+    ]
 }
 
 if [istarget "loongarch64-*-*"] {