https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99217
--- Comment #2 from huangpei at loongson dot cn <huangpei at loongson dot cn>
---
my colleague Xu Chenghua (xucheng...@loongson.cn) add a patch to address this
--------------------
diff --git a/src/gcc/config/mips/mips-protos.h
b/src/gcc/config/mips/mips-protos.h
index aba1f8222..253c5b6f5 100644
--- a/src/gcc/config/mips/mips-protos.h
+++ b/src/gcc/config/mips/mips-protos.h
@@ -394,4 +394,6 @@ extern void mips_expand_vec_cond_expr (machine_mode,
machine_mode, rtx *);
/* Routines implemented in mips-d.c */
extern void mips_d_target_versions (void);
+extern void mips_declare_function_name (FILE *, const char *, tree);
+
#endif /* ! GCC_MIPS_PROTOS_H */
diff --git a/src/gcc/config/mips/mips.c b/src/gcc/config/mips/mips.c
index de69400d1..f94028e55 100644
--- a/src/gcc/config/mips/mips.c
+++ b/src/gcc/config/mips/mips.c
@@ -12002,6 +12002,23 @@ mips_output_cplocal (void)
output_asm_insn (".cplocal %+", 0);
}
+/* Implement ASM_DECLARE_FUNCTION_NAME. */
+
+void mips_declare_function_name(FILE *stream ATTRIBUTE_UNUSED,
+ const char *name, tree fndecl ATTRIBUTE_UNUSED)
+{
+
+ /* Get the function name the same way that toplev.c does before calling
+ assemble_start_function. This is needed so that the name used here
+ exactly matches the name used in ASM_DECLARE_FUNCTION_NAME. */
+ //fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
+ mips_start_function_definition (name, TARGET_MIPS16);
+
+ //ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "function");
+ //ASM_OUTPUT_LABEL (stream, name);
+}
+
+
/* Implement TARGET_OUTPUT_FUNCTION_PROLOGUE. */
static void
@@ -12016,12 +12033,6 @@ mips_output_function_prologue (FILE *file)
&& crtl->args.info.fp_code != 0)
mips16_build_function_stub ();
- /* Get the function name the same way that toplev.c does before calling
- assemble_start_function. This is needed so that the name used here
- exactly matches the name used in ASM_DECLARE_FUNCTION_NAME. */
- fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
- mips_start_function_definition (fnname, TARGET_MIPS16);
-
/* Output MIPS-specific frame information. */
if (!flag_inhibit_size_directive)
{
diff --git a/src/gcc/config/mips/mips.h b/src/gcc/config/mips/mips.h
index dccfae52c..cb8ab602a 100644
--- a/src/gcc/config/mips/mips.h
+++ b/src/gcc/config/mips/mips.h
@@ -2955,7 +2955,8 @@ while (0)
is not declared before the .ent directive elsewhere. */
#undef ASM_DECLARE_FUNCTION_NAME
-#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL)
+#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) \
+ mips_declare_function_name(STREAM,NAME,DECL)
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
diff --git a/src/gcc/targhooks.c b/src/gcc/targhooks.c
index fafcc6c51..9a6baaf4b 100644
--- a/src/gcc/targhooks.c
+++ b/src/gcc/targhooks.c
@@ -1806,7 +1806,7 @@ default_print_patchable_function_entry (FILE *file,
unsigned i;
for (i = 0; i < patch_area_size; ++i)
- fprintf (file, "\t%s\n", nop_templ);
+ output_asm_insn (nop_templ, NULL);
}
bool
--------------------------
With this and fix for bug 93242, -fpatchable-function-entry works on linux
kernel 5.10
