[oe-commits] [meta-openembedded] 13/34: libx86-1: port a patch to make it work
git at git.openembedded.org
git at git.openembedded.org
Wed Jan 27 12:03:10 UTC 2016
martin_jansa pushed a commit to branch master-next
in repository meta-openembedded.
commit 3f56ae3b35c977a2d9007c29fde38a3d66c8cfdc
Author: Roy Li <rongqing.li at windriver.com>
AuthorDate: Wed Jan 20 14:05:41 2016 +0800
libx86-1: port a patch to make it work
port a patch from libx86-1.1-21.fc23.src.rpm, and make libx86-1 be able to work
and assume zero which return by LRMI_common_init is valid address
Signed-off-by: Roy Li <rongqing.li at windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
---
.../0001-assume-zero-is-valid-address.patch | 26 +++
.../libx86-1/libx86-1.1/libx86-mmap-offset.patch | 190 +++++++++++++++++++++
meta-oe/recipes-extended/libx86-1/libx86-1_1.1.bb | 6 +-
3 files changed, 221 insertions(+), 1 deletion(-)
diff --git a/meta-oe/recipes-extended/libx86-1/libx86-1.1/0001-assume-zero-is-valid-address.patch b/meta-oe/recipes-extended/libx86-1/libx86-1.1/0001-assume-zero-is-valid-address.patch
new file mode 100644
index 0000000..7a46301
--- /dev/null
+++ b/meta-oe/recipes-extended/libx86-1/libx86-1.1/0001-assume-zero-is-valid-address.patch
@@ -0,0 +1,26 @@
+assume zero is valid address
+
+Upstream-Status: Pending
+
+Signed-off-by: Roy Li <rongqing.li at windriver.com>
+---
+ thunk.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/thunk.c b/thunk.c
+index 796e88b..6121ea1 100644
+--- a/thunk.c
++++ b/thunk.c
+@@ -141,9 +141,6 @@ int LRMI_init() {
+
+ mmap_addr = LRMI_common_init(1);
+
+- if (!mmap_addr)
+- return 0;
+-
+ X86EMU_pioFuncs pioFuncs = {
+ (&x_inb),
+ (&x_inw),
+--
+1.9.1
+
diff --git a/meta-oe/recipes-extended/libx86-1/libx86-1.1/libx86-mmap-offset.patch b/meta-oe/recipes-extended/libx86-1/libx86-1.1/libx86-mmap-offset.patch
new file mode 100644
index 0000000..843acc8
--- /dev/null
+++ b/meta-oe/recipes-extended/libx86-1/libx86-1.1/libx86-mmap-offset.patch
@@ -0,0 +1,190 @@
+Upstream-Statue: Pending
+[from ftp://195.220.108.108/linux/fedora/linux/development/rawhide/source/SRPMS/l/libx86-1.1-21.fc23.src.rpm]
+
+diff -ur libx86-1.1/lrmi.c libx86-1.1.hack/lrmi.c
+--- libx86-1.1/lrmi.c 2006-10-30 15:10:16.000000000 -0500
++++ libx86-1.1.hack/lrmi.c 2009-10-26 15:55:42.000000000 -0400
+@@ -136,7 +136,7 @@
+ if (context.ready)
+ return 1;
+
+- if (!LRMI_common_init())
++ if (!LRMI_common_init(0))
+ return 0;
+
+ /*
+diff -ur libx86-1.1/thunk.c libx86-1.1.hack/thunk.c
+--- libx86-1.1/thunk.c 2008-04-02 20:48:00.000000000 -0400
++++ libx86-1.1.hack/thunk.c 2009-10-26 16:05:39.000000000 -0400
+@@ -139,11 +139,11 @@
+ int i;
+ X86EMU_intrFuncs intFuncs[256];
+
+- if (!LRMI_common_init())
++ mmap_addr = LRMI_common_init(1);
++
++ if (!mmap_addr)
+ return 0;
+
+- mmap_addr = 0;
+-
+ X86EMU_pioFuncs pioFuncs = {
+ (&x_inb),
+ (&x_inw),
+@@ -169,10 +169,10 @@
+ X86_ESP = 0xFFF9;
+ memset (stack, 0, 64*1024);
+
+- *((char *)0) = 0x4f; /* Make sure that we end up jumping back to a
+- halt instruction */
++ *mmap_addr = 0x4f; /* Make sure that we end up jumping back to a
++ halt instruction */
+
+- M.mem_base = 0;
++ M.mem_base = (unsigned long)mmap_addr;
+ M.mem_size = 1024*1024;
+
+ return 1;
+diff -ur libx86-1.1/x86-common.c libx86-1.1.hack/x86-common.c
+--- libx86-1.1/x86-common.c 2008-05-16 12:56:23.000000000 -0400
++++ libx86-1.1.hack/x86-common.c 2009-10-26 16:03:21.000000000 -0400
+@@ -45,14 +45,15 @@
+ static struct {
+ int ready;
+ int count;
++ void *offset;
+ struct mem_block blocks[REAL_MEM_BLOCKS];
+ } mem_info = { 0 };
+
+ static int
+-real_mem_init(void)
++real_mem_init(int high_page)
+ {
+ void *m;
+- int fd_zero;
++ int fd_zero, flags = MAP_SHARED;
+
+ if (mem_info.ready)
+ return 1;
+@@ -63,9 +64,12 @@
+ return 0;
+ }
+
++ if (!high_page)
++ flags |= MAP_FIXED;
++
+ m = mmap((void *)REAL_MEM_BASE, REAL_MEM_SIZE,
+- PROT_READ | PROT_WRITE | PROT_EXEC,
+- MAP_FIXED | MAP_SHARED, fd_zero, 0);
++ PROT_READ | PROT_WRITE | PROT_EXEC,
++ flags, fd_zero, 0);
+
+ if (m == (void *)-1) {
+ perror("mmap /dev/zero");
+@@ -76,6 +80,7 @@
+ close(fd_zero);
+
+ mem_info.ready = 1;
++ mem_info.offset = m;
+ mem_info.count = 1;
+ mem_info.blocks[0].size = REAL_MEM_SIZE;
+ mem_info.blocks[0].free = 1;
+@@ -87,7 +92,7 @@
+ real_mem_deinit(void)
+ {
+ if (mem_info.ready) {
+- munmap((void *)REAL_MEM_BASE, REAL_MEM_SIZE);
++ munmap(mem_info.offset, REAL_MEM_SIZE);
+ mem_info.ready = 0;
+ }
+ }
+@@ -119,7 +124,7 @@
+ LRMI_alloc_real(int size)
+ {
+ int i;
+- char *r = (char *)REAL_MEM_BASE;
++ char *r = (char *)mem_info.offset;
+
+ if (!mem_info.ready)
+ return NULL;
+@@ -151,7 +156,7 @@
+ LRMI_free_real(void *m)
+ {
+ int i;
+- char *r = (char *)REAL_MEM_BASE;
++ char *r = (char *)mem_info.offset;
+
+ if (!mem_info.ready)
+ return;
+@@ -200,13 +205,15 @@
+ return *(unsigned short *)(i * 4);
+ }
+
+-int LRMI_common_init(void)
++void *LRMI_common_init(int high_page)
+ {
+- void *m;
++ void *m, *offset;
+ int fd_mem;
+
+- if (!real_mem_init())
+- return 0;
++ if (!real_mem_init(high_page))
++ return NULL;
++
++ offset = mem_info.offset - REAL_MEM_BASE;
+
+ /*
+ Map the Interrupt Vectors (0x0 - 0x400) + BIOS data (0x400 - 0x502)
+@@ -217,33 +224,33 @@
+ if (fd_mem == -1) {
+ real_mem_deinit();
+ perror("open /dev/mem");
+- return 0;
++ return NULL;
+ }
+
+- m = mmap((void *)0, 0x502,
+- PROT_READ | PROT_WRITE | PROT_EXEC,
+- MAP_FIXED | MAP_SHARED, fd_mem, 0);
++ m = mmap(offset, 0x502,
++ PROT_READ | PROT_WRITE | PROT_EXEC,
++ MAP_FIXED | MAP_SHARED, fd_mem, 0);
+
+ if (m == (void *)-1) {
+ close(fd_mem);
+ real_mem_deinit();
+ perror("mmap /dev/mem");
+- return 0;
++ return NULL;
+ }
+
+- m = mmap((void *)0xa0000, 0x100000 - 0xa0000,
++ m = mmap(offset+0xa0000, 0x100000 - 0xa0000,
+ PROT_READ | PROT_WRITE | PROT_EXEC,
+ MAP_FIXED | MAP_SHARED, fd_mem, 0xa0000);
+
+ if (m == (void *)-1) {
+- munmap((void *)0, 0x502);
++ munmap(offset, 0x502);
+ close(fd_mem);
+ real_mem_deinit();
+ perror("mmap /dev/mem");
+- return 0;
++ return NULL;
+ }
+
+ close(fd_mem);
+
+- return 1;
++ return offset;
+ }
+diff -ur libx86-1.1/x86-common.h libx86-1.1.hack/x86-common.h
+--- libx86-1.1/x86-common.h 2006-09-07 18:44:27.000000000 -0400
++++ libx86-1.1.hack/x86-common.h 2009-10-26 16:01:19.000000000 -0400
+@@ -40,4 +40,4 @@
+
+ void *LRMI_alloc_real(int size);
+ void LRMI_free_real(void *m);
+-int LRMI_common_init(void);
++void *LRMI_common_init(int high_page);
diff --git a/meta-oe/recipes-extended/libx86-1/libx86-1_1.1.bb b/meta-oe/recipes-extended/libx86-1/libx86-1_1.1.bb
index 7551e7d..20c152c 100644
--- a/meta-oe/recipes-extended/libx86-1/libx86-1_1.1.bb
+++ b/meta-oe/recipes-extended/libx86-1/libx86-1_1.1.bb
@@ -7,7 +7,11 @@ LICENSE = "MIT & BSD-3-Clause"
SECTION = "libs"
LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=633af6c02e6f624d4c472d970a2aca53"
-SRC_URI = "http://www.codon.org.uk/~mjg59/libx86/downloads/${BPN}-${PV}.tar.gz"
+SRC_URI = "http://www.codon.org.uk/~mjg59/libx86/downloads/${BPN}-${PV}.tar.gz \
+ file://libx86-mmap-offset.patch \
+ file://0001-assume-zero-is-valid-address.patch \
+"
+
SRC_URI[md5sum] = "41bee1f8e22b82d82b5f7d7ba51abc2a"
SRC_URI[sha256sum] = "5bf13104cb327472b5cb65643352a9138646becacc06763088d83001d832d048"
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