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-rw-r--r--main/syslinux/boot_image.patch66
1 files changed, 66 insertions, 0 deletions
diff --git a/main/syslinux/boot_image.patch b/main/syslinux/boot_image.patch
new file mode 100644
index 000000000..59f5e046c
--- /dev/null
+++ b/main/syslinux/boot_image.patch
@@ -0,0 +1,66 @@
+From 281e6e2253e737675458e75624a5ba42f0a5f4d6 Mon Sep 17 00:00:00 2001
+From: Matt Fleming <matt.fleming@intel.com>
+Date: Thu, 7 Feb 2013 11:28:58 +0000
+Subject: [PATCH] ldlinux: Append BOOT_IMAGE= to kernel cmdline
+
+Some users rely on the syntax of the kernel cmdline from 4.xx and this
+is currently different in 5.xx. Fix things to match the 4.xx syntax.
+
+Cc: H. Peter Anvin <hpa@zytor.com>
+Signed-off-by: Matt Fleming <matt.fleming@intel.com>
+---
+ com32/elflink/ldlinux/execute.c | 2 +-
+ com32/elflink/ldlinux/kernel.c | 17 +++++------------
+ 2 files changed, 6 insertions(+), 13 deletions(-)
+
+diff --git a/com32/elflink/ldlinux/execute.c b/com32/elflink/ldlinux/execute.c
+index 5c53b99..c6fa8d8 100644
+--- a/com32/elflink/ldlinux/execute.c
++++ b/com32/elflink/ldlinux/execute.c
+@@ -142,7 +142,7 @@ __export void execute(const char *cmdline, uint32_t type)
+ } else {
+ /* Need add one item for kernel load, as we don't use
+ * the assembly runkernel.inc any more */
+- new_linux_kernel((char *)kernel, (char *)cmdline);
++ new_linux_kernel((char *)kernel, (char *)args);
+ }
+
+ free((void *)kernel);
+diff --git a/com32/elflink/ldlinux/kernel.c b/com32/elflink/ldlinux/kernel.c
+index 920246f..f3ba37f 100644
+--- a/com32/elflink/ldlinux/kernel.c
++++ b/com32/elflink/ldlinux/kernel.c
+@@ -35,14 +35,10 @@ int new_linux_kernel(char *okernel, char *ocmdline)
+ else if (append)
+ args = append;
+
+- cmdline_len = strlen(kernel_name);
+- if (args) {
+- /* +1 for the space (' ') between kernel and args */
+- cmdline_len += strlen(args) + 1;
+- }
+-
+- /* +1 for NUL termination */
+- cmdline_len++;
++ cmdline_len = strlen("BOOT_IMAGE=") + strlen(kernel_name);
++ cmdline_len += 1; /* space between BOOT_IMAGE and args */
++ cmdline_len += strlen(args);
++ cmdline_len += 1; /* NUL-termination */
+
+ cmdline = malloc(cmdline_len);
+ if (!cmdline) {
+@@ -50,10 +46,7 @@ int new_linux_kernel(char *okernel, char *ocmdline)
+ return 1;
+ }
+
+- if (args)
+- snprintf(cmdline, cmdline_len, "%s %s", kernel_name, args);
+- else
+- snprintf(cmdline, cmdline_len, "%s", kernel_name);
++ sprintf(cmdline, "BOOT_IMAGE=%s %s", kernel_name, args);
+
+ /* "keeppxe" handling */
+ #if IS_PXELINUX
+--
+1.7.6.5
+