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D55082.diff
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D55082.diff

diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -119,10 +119,9 @@
LDFLAGS+= --build-id=sha1
.endif
-.if ${MACHINE_CPUARCH} != "riscv" && \
- defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" && \
+.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" && \
!make(install)
-.error amd64/arm/arm64/i386/ppc* kernel requires linker ifunc support
+.error kernel requires linker ifunc support
.endif
.if ${MACHINE_CPUARCH} == "amd64"
LDFLAGS+= -z max-page-size=2097152
diff --git a/sys/kern/link_elf.c b/sys/kern/link_elf.c
--- a/sys/kern/link_elf.c
+++ b/sys/kern/link_elf.c
@@ -2041,7 +2041,6 @@
}
#endif
-#if !defined(__riscv)
/*
* Use this lookup routine when performing relocations early during boot.
* The generic lookup routine depends on kobj, which is not initialized
@@ -2104,4 +2103,3 @@
relocate_file1(ef, elf_lookup_ifunc, elf_reloc_late, true);
}
#endif
-#endif
diff --git a/sys/riscv/include/ifunc.h b/sys/riscv/include/ifunc.h
--- a/sys/riscv/include/ifunc.h
+++ b/sys/riscv/include/ifunc.h
@@ -30,8 +30,6 @@
#ifndef __RISCV_IFUNC_H
#define __RISCV_IFUNC_H
-#define __DO_NOT_HAVE_SYS_IFUNCS 1
-
#define DEFINE_IFUNC(qual, ret_type, name, args) \
static ret_type (*name##_resolver(void))args __used; \
qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \
diff --git a/sys/riscv/riscv/elf_machdep.c b/sys/riscv/riscv/elf_machdep.c
--- a/sys/riscv/riscv/elf_machdep.c
+++ b/sys/riscv/riscv/elf_machdep.c
@@ -271,10 +271,10 @@
}
bool
-elf_is_ifunc_reloc(Elf_Size r_info __unused)
+elf_is_ifunc_reloc(Elf_Size r_info)
{
- return (false);
+ return (ELF_R_TYPE(r_info) == R_RISCV_IRELATIVE);
}
/*
@@ -501,7 +501,12 @@
(local ? 'l' : 'g'), reloctype_to_str(rtype),
before32, *insn32p);
break;
-
+ case R_RISCV_IRELATIVE:
+ addr = relocbase + addend;
+ val = ((Elf64_Addr (*)(void))addr)();
+ if (*where != val)
+ *where = val;
+ break;
default:
printf("kldload: unexpected relocation type %ld, "
"symbol index %ld\n", rtype, symidx);
diff --git a/sys/riscv/riscv/machdep.c b/sys/riscv/riscv/machdep.c
--- a/sys/riscv/riscv/machdep.c
+++ b/sys/riscv/riscv/machdep.c
@@ -479,8 +479,6 @@
/* Initialize preload_kmdp */
preload_initkmdp(true);
- sched_instance_select();
- /* link_elf_ireloc(); */
/* Read the boot metadata */
boothowto = MD_FETCH(preload_kmdp, MODINFOMD_HOWTO, int);
@@ -626,6 +624,10 @@
*/
identify_cpu(0);
+ sched_instance_select();
+
+ link_elf_ireloc();
+
/* Do basic tuning, hz etc */
init_param1();

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