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[src/trunk]: src Add TLS support for AMD64, i386 and SH3.
details: https://anonhg.NetBSD.org/src/rev/030584118256
branches: trunk
changeset: 763202:030584118256
user: joerg <joerg%NetBSD.org@localhost>
date: Sat Mar 12 22:54:36 2011 +0000
description:
Add TLS support for AMD64, i386 and SH3.
This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.
diffstat:
libexec/ld.elf_so/arch/i386/mdreloc.c | 68 ++++++++++++++++++++++++++++++++-
libexec/ld.elf_so/arch/sh3/mdreloc.c | 50 ++++++++++++++++++++++-
libexec/ld.elf_so/arch/x86_64/mdreloc.c | 50 ++++++++++++++++++++++-
libexec/ld.elf_so/rtld.h | 6 ++-
libexec/ld.elf_so/symbol.c | 7 ++-
sys/arch/amd64/include/types.h | 4 +-
sys/arch/i386/include/types.h | 4 +-
sys/arch/sh3/include/types.h | 4 +-
8 files changed, 179 insertions(+), 14 deletions(-)
diffs (truncated from 345 to 300 lines):
diff -r b8a201377dff -r 030584118256 libexec/ld.elf_so/arch/i386/mdreloc.c
--- a/libexec/ld.elf_so/arch/i386/mdreloc.c Sat Mar 12 22:34:52 2011 +0000
+++ b/libexec/ld.elf_so/arch/i386/mdreloc.c Sat Mar 12 22:54:36 2011 +0000
@@ -1,11 +1,12 @@
-/* $NetBSD: mdreloc.c,v 1.32 2010/08/06 16:33:18 joerg Exp $ */
+/* $NetBSD: mdreloc.c,v 1.33 2011/03/12 22:54:36 joerg Exp $ */
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: mdreloc.c,v 1.32 2010/08/06 16:33:18 joerg Exp $");
+__RCSID("$NetBSD: mdreloc.c,v 1.33 2011/03/12 22:54:36 joerg Exp $");
#endif /* not lint */
#include <sys/types.h>
+#include <sys/ucontext.h>
#include "debug.h"
#include "rtld.h"
@@ -119,6 +120,47 @@
rdbg(("COPY (avoid in main)"));
break;
+ case R_TYPE(TLS_TPOFF):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ if (!defobj->tls_done &&
+ _rtld_tls_offset_allocate(obj))
+ return -1;
+
+ *where = (Elf_Addr)(def->st_value - defobj->tlsoffset);
+
+ rdbg(("TLS_TPOFF %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+ break;
+
+ case R_TYPE(TLS_DTPMOD32):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where = (Elf_Addr)(defobj->tlsindex);
+
+ rdbg(("TLS_DTPMOD32 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+ break;
+
+ case R_TYPE(TLS_DTPOFF32):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where = (Elf_Addr)(def->st_value);
+
+ rdbg(("TLS_DTPOFF32 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+
+ break;
+
default:
rdbg(("sym = %lu, type = %lu, offset = %p, "
"contents = %p, symbol = %s",
@@ -214,3 +256,25 @@
}
return err;
}
+
+/*
+ * i386 specific GNU variant of __tls_get_addr using register based
+ * argument passing.
+ */
+#define DTV_MAX_INDEX(dtv) ((size_t)((dtv)[-1]))
+
+__dso_public __attribute__((__regparm__(1))) void *
+___tls_get_addr(void *arg_)
+{
+ size_t *arg = (size_t *)arg_;
+ void **dtv;
+ struct tls_tcb *tcb = __lwp_getprivate_fast();
+ size_t idx = arg[0], offset = arg[1];
+
+ dtv = tcb->tcb_dtv;
+
+ if (__predict_true(idx < DTV_MAX_INDEX(dtv) && dtv[idx] != NULL))
+ return (uint8_t *)dtv[idx] + offset;
+
+ return _rtld_tls_get_addr(tcb, idx, offset);
+}
diff -r b8a201377dff -r 030584118256 libexec/ld.elf_so/arch/sh3/mdreloc.c
--- a/libexec/ld.elf_so/arch/sh3/mdreloc.c Sat Mar 12 22:34:52 2011 +0000
+++ b/libexec/ld.elf_so/arch/sh3/mdreloc.c Sat Mar 12 22:54:36 2011 +0000
@@ -1,16 +1,17 @@
-/* $NetBSD: mdreloc.c,v 1.28 2010/08/06 16:33:18 joerg Exp $ */
+/* $NetBSD: mdreloc.c,v 1.29 2011/03/12 22:54:36 joerg Exp $ */
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: mdreloc.c,v 1.28 2010/08/06 16:33:18 joerg Exp $");
+__RCSID("$NetBSD: mdreloc.c,v 1.29 2011/03/12 22:54:36 joerg Exp $");
#endif /* not lint */
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: mdreloc.c,v 1.28 2010/08/06 16:33:18 joerg Exp $");
+__RCSID("$NetBSD: mdreloc.c,v 1.29 2011/03/12 22:54:36 joerg Exp $");
#endif /* not lint */
#include <sys/types.h>
+#include <sys/tls.h>
#include "debug.h"
#include "rtld.h"
@@ -154,6 +155,49 @@
rdbg(("COPY (avoid in main)"));
break;
+ case R_TYPE(TLS_DTPOFF32):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where = (Elf_Addr)(def->st_value);
+
+ rdbg(("TLS_DTPOFF32 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+
+ break;
+ case R_TYPE(TLS_DTPMOD32):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where = (Elf_Addr)(defobj->tlsindex);
+
+ rdbg(("TLS_DTPMOD32 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+
+ break;
+
+ case R_TYPE(TLS_TPOFF32):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ if (!defobj->tls_done &&
+ _rtld_tls_offset_allocate(obj))
+ return -1;
+
+ *where = (Elf_Addr)def->st_value +
+ rela->r_addend + defobj->tlsoffset +
+ sizeof(struct tls_tcb);
+
+ rdbg(("TLS_TPOFF32 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where));
+ break;
+
default:
rdbg(("sym = %lu, type = %lu, offset = %p, "
"addend = %p, contents = %p, symbol = %s",
diff -r b8a201377dff -r 030584118256 libexec/ld.elf_so/arch/x86_64/mdreloc.c
--- a/libexec/ld.elf_so/arch/x86_64/mdreloc.c Sat Mar 12 22:34:52 2011 +0000
+++ b/libexec/ld.elf_so/arch/x86_64/mdreloc.c Sat Mar 12 22:54:36 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mdreloc.c,v 1.38 2010/08/06 16:33:19 joerg Exp $ */
+/* $NetBSD: mdreloc.c,v 1.39 2011/03/12 22:54:36 joerg Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
@@ -68,7 +68,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: mdreloc.c,v 1.38 2010/08/06 16:33:19 joerg Exp $");
+__RCSID("$NetBSD: mdreloc.c,v 1.39 2011/03/12 22:54:36 joerg Exp $");
#endif /* not lint */
#include <sys/types.h>
@@ -161,7 +161,7 @@
*where32 = tmp32;
rdbg(("32/32S %s in %s --> %p in %s",
obj->strtab + obj->symtab[symnum].st_name,
- obj->path, (void *)(unsigned long)*where32,
+ obj->path, (void *)(uintptr_t)*where32,
defobj->path));
break;
case R_TYPE(64): /* word64 S + A */
@@ -211,6 +211,50 @@
(void *)*where64));
break;
+ case R_TYPE(TPOFF64):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ if (!defobj->tls_done &&
+ _rtld_tls_offset_allocate(obj))
+ return -1;
+
+ *where64 = (Elf64_Addr)(def->st_value -
+ defobj->tlsoffset + rela->r_addend);
+
+ rdbg(("TPOFF64 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where64));
+
+ break;
+
+ case R_TYPE(DTPMOD64):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where64 = (Elf64_Addr)defobj->tlsindex;
+
+ rdbg(("DTPMOD64 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where64));
+
+ break;
+
+ case R_TYPE(DTPOFF64):
+ def = _rtld_find_symdef(symnum, obj, &defobj, false);
+ if (def == NULL)
+ return -1;
+
+ *where64 = (Elf64_Addr)(def->st_value + rela->r_addend);
+
+ rdbg(("DTPOFF64 %s in %s --> %p",
+ obj->strtab + obj->symtab[symnum].st_name,
+ obj->path, (void *)*where64));
+
+ break;
+
case R_TYPE(COPY):
rdbg(("COPY"));
break;
diff -r b8a201377dff -r 030584118256 libexec/ld.elf_so/rtld.h
--- a/libexec/ld.elf_so/rtld.h Sat Mar 12 22:34:52 2011 +0000
+++ b/libexec/ld.elf_so/rtld.h Sat Mar 12 22:54:36 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rtld.h,v 1.102 2011/03/10 14:27:31 joerg Exp $ */
+/* $NetBSD: rtld.h,v 1.103 2011/03/12 22:54:36 joerg Exp $ */
/*
* Copyright 1996 John D. Polstra.
@@ -375,6 +375,10 @@
extern size_t _rtld_tls_max_index;
__dso_public extern void *__tls_get_addr(void *);
+#ifdef __i386__
+__dso_public extern void *___tls_get_addr(void *)
+ __attribute__((__regparm__(1)));
+#endif
#endif
/* map_object.c */
diff -r b8a201377dff -r 030584118256 libexec/ld.elf_so/symbol.c
--- a/libexec/ld.elf_so/symbol.c Sat Mar 12 22:34:52 2011 +0000
+++ b/libexec/ld.elf_so/symbol.c Sat Mar 12 22:54:36 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: symbol.c,v 1.55 2011/03/09 23:10:07 joerg Exp $ */
+/* $NetBSD: symbol.c,v 1.56 2011/03/12 22:54:36 joerg Exp $ */
/*
* Copyright 1996 John D. Polstra.
@@ -40,7 +40,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: symbol.c,v 1.55 2011/03/09 23:10:07 joerg Exp $");
+__RCSID("$NetBSD: symbol.c,v 1.56 2011/03/12 22:54:36 joerg Exp $");
#endif /* not lint */
#include <err.h>
@@ -97,6 +97,9 @@
(fptr_t)_rtld_tls_allocate,
(fptr_t)_rtld_tls_free,
(fptr_t)__tls_get_addr,
+#ifdef __i386__
+ (fptr_t)___tls_get_addr,
+#endif
#endif
NULL
};
diff -r b8a201377dff -r 030584118256 sys/arch/amd64/include/types.h
--- a/sys/arch/amd64/include/types.h Sat Mar 12 22:34:52 2011 +0000
+++ b/sys/arch/amd64/include/types.h Sat Mar 12 22:54:36 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: types.h,v 1.36 2011/02/24 04:28:45 joerg Exp $ */
+/* $NetBSD: types.h,v 1.37 2011/03/12 22:54:37 joerg Exp $ */
/*-
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