From: Lionel Sambuc <lionel@minix3.org>
Date: Thu, 21 Aug 2014 11:35:45 +0000 (+0200)
Subject: Fix bitcode support for kernel
X-Git-Tag: v3.3.0~33
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zpipe.c?a=commitdiff_plain;h=refs%2Fchanges%2F98%2F2798%2F2;p=minix.git

Fix bitcode support for kernel
---

diff --git a/minix/kernel/arch/earm/kernel.lds b/minix/kernel/arch/earm/kernel.lds
index 9070b38bb..b41fcad29 100644
--- a/minix/kernel/arch/earm/kernel.lds
+++ b/minix/kernel/arch/earm/kernel.lds
@@ -24,9 +24,9 @@ SECTIONS
 	. += _kern_offset;
 
 	. = ALIGN(4096); usermapped_start = .;
-	.usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o(*) }
+	.usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { *(.usermapped_glo) }
 	. = ALIGN(4096); usermapped_nonglo_start = .;
-	.usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o(*) }
+	.usermapped : AT(ADDR(.usermapped) - _kern_offset) { *(.usermapped) }
 	. = ALIGN(4096); usermapped_end = .;
 	.text             : AT(ADDR(.text) - _kern_offset) { *(.text*) }
 	_etext = .;
@@ -47,5 +47,4 @@ SECTIONS
        {
                *(.ARM.exidx*)
        }
-
 }
diff --git a/minix/kernel/arch/i386/kernel.lds b/minix/kernel/arch/i386/kernel.lds
index b38544e72..24c0c1f90 100644
--- a/minix/kernel/arch/i386/kernel.lds
+++ b/minix/kernel/arch/i386/kernel.lds
@@ -16,15 +16,15 @@ SECTIONS
 
 	.unpaged_text : { unpaged_*.o(.text) }
 	.unpaged_data ALIGN(4096) : { unpaged_*.o(.data .rodata*) }
-	.unpaged_bss  ALIGN(4096) : { unpaged_*.o(.bss COMMON) } 
+	.unpaged_bss  ALIGN(4096) : { unpaged_*.o(.bss COMMON) }
 	__k_unpaged__kern_unpaged_end = .;
 
 	. += _kern_offset;
 
 	. = ALIGN(4096); usermapped_start = .;
-	.usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o(*) }
+	.usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { *(.usermapped_glo) }
 	. = ALIGN(4096); usermapped_nonglo_start = .;
-	.usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o(*) }
+	.usermapped : AT(ADDR(.usermapped) - _kern_offset) { *(.usermapped) }
 	. = ALIGN(4096); usermapped_end = .;
 	.text             : AT(ADDR(.text) - _kern_offset) { *(.text*) }
 	.data ALIGN(4096) : AT(ADDR(.data) - _kern_offset) { *(.data .rodata* ) }
diff --git a/minix/kernel/arch/i386/usermapped_data_arch.c b/minix/kernel/arch/i386/usermapped_data_arch.c
index a475787c6..da84ce324 100644
--- a/minix/kernel/arch/i386/usermapped_data_arch.c
+++ b/minix/kernel/arch/i386/usermapped_data_arch.c
@@ -1,7 +1,7 @@
 #include "kernel/kernel.h"
 #include "arch_proto.h"
 
-struct minix_ipcvecs minix_ipcvecs_softint = {
+struct minix_ipcvecs minix_ipcvecs_softint __section(".usermapped") = {
 	.send		= usermapped_send_softint,
 	.receive	= usermapped_receive_softint,
 	.sendrec	= usermapped_sendrec_softint,
@@ -11,7 +11,7 @@ struct minix_ipcvecs minix_ipcvecs_softint = {
 	.senda		= usermapped_senda_softint
 };
 
-struct minix_ipcvecs minix_ipcvecs_sysenter = {
+struct minix_ipcvecs minix_ipcvecs_sysenter __section(".usermapped") = {
 	.send		= usermapped_send_sysenter,
 	.receive	= usermapped_receive_sysenter,
 	.sendrec	= usermapped_sendrec_sysenter,
@@ -21,7 +21,7 @@ struct minix_ipcvecs minix_ipcvecs_sysenter = {
 	.senda		= usermapped_senda_sysenter
 };
 
-struct minix_ipcvecs minix_ipcvecs_syscall = {
+struct minix_ipcvecs minix_ipcvecs_syscall __section(".usermapped") = {
 	.send		= usermapped_send_syscall,
 	.receive	= usermapped_receive_syscall,
 	.sendrec	= usermapped_sendrec_syscall,
diff --git a/minix/kernel/arch/i386/usermapped_glo_ipc.S b/minix/kernel/arch/i386/usermapped_glo_ipc.S
index cb3b55b34..a5a1cde1d 100644
--- a/minix/kernel/arch/i386/usermapped_glo_ipc.S
+++ b/minix/kernel/arch/i386/usermapped_glo_ipc.S
@@ -1,6 +1,14 @@
 #include <minix/ipcconst.h>
 #include <machine/asm.h>
 
+/* Redefine _ENTRY to put the following function in the section
+ * ".usermapped_glo". */
+#undef _ENTRY
+#define _ENTRY(x) \
+	_ALIGN_TEXT; .globl x; .type x,@function; x:
+
+.section .usermapped_glo, "wax", @progbits
+
 /**========================================================================* */
 /*                           IPC assembly routines			  * */
 /**========================================================================* */
diff --git a/minix/kernel/usermapped_data.c b/minix/kernel/usermapped_data.c
index bec1696f5..4ee09f622 100644
--- a/minix/kernel/usermapped_data.c
+++ b/minix/kernel/usermapped_data.c
@@ -1,11 +1,11 @@
 #include "kernel/kernel.h"
 
 /* This is the user-visible struct that has pointers to other bits of data. */
-struct minix_kerninfo minix_kerninfo;
+struct minix_kerninfo minix_kerninfo __section(".usermapped");
 
 /* Kernel information structures. */
-struct kinfo kinfo;               /* kernel information for users */
-struct machine machine;           /* machine information for users */
-struct kmessages kmessages;       /* diagnostic messages in kernel */
-struct loadinfo loadinfo;        /* status of load average */
+struct kinfo kinfo __section(".usermapped");		/* kernel information for users */
+struct machine machine __section(".usermapped");	/* machine information for users */
+struct kmessages kmessages __section(".usermapped");	/* diagnostic messages in kernel */
+struct loadinfo loadinfo __section(".usermapped");	/* status of load average */