kexec-tools/kexec-tools-2.0.4-makedumpfile-Assign-non-printable-value-as-short-option.patch

From bd67c1d5e2633f302b4c0ad50cc830ff7da20b2a Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Tue, 2 Jul 2013 11:09:20 +0900
Subject: [PATCH 1/2] [PATCH 1/2] Assign non-printable value as short options.

Characters for short options is limited, and now makedumpfile has
considerably many options. As times go on, no enough reasonable
letters can be assigned to each functionality with short options.

E.g non-cyclic vs Y, cyclic-buffer vs Z, eppic vs S.

Now assign non-printable value to these kind of short optins, meanwhile
define them as indicative MACRO which can make code more readable.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 makedumpfile.c | 88 +++++++++++++++++++++++++++++-----------------------------
 makedumpfile.h | 35 +++++++++++++++++++++++
 2 files changed, 79 insertions(+), 44 deletions(-)

diff --git a/makedumpfile-1.5.4/makedumpfile.c b/makedumpfile-1.5.4/makedumpfile.c
index b42565c..bb72c66 100644
--- a/makedumpfile-1.5.4/makedumpfile.c
+++ b/makedumpfile-1.5.4/makedumpfile.c
@@ -8555,20 +8555,20 @@ calculate_cyclic_buffer_size(void) {
 }
 
 static struct option longopts[] = {
-	{"split", no_argument, NULL, 's'}, 
-	{"reassemble", no_argument, NULL, 'r'},
-	{"xen-syms", required_argument, NULL, 'y'},
-	{"xen-vmcoreinfo", required_argument, NULL, 'z'},
-	{"xen_phys_start", required_argument, NULL, 'P'},
-	{"message-level", required_argument, NULL, 'm'},
-	{"vtop", required_argument, NULL, 'V'},
-	{"dump-dmesg", no_argument, NULL, 'M'}, 
-	{"config", required_argument, NULL, 'C'},
-	{"help", no_argument, NULL, 'h'},
-	{"diskset", required_argument, NULL, 'k'},
-	{"non-cyclic", no_argument, NULL, 'Y'},
-	{"cyclic-buffer", required_argument, NULL, 'Z'},
-	{"eppic", required_argument, NULL, 'S'},
+	{"split", no_argument, NULL, OPT_SPLIT},
+	{"reassemble", no_argument, NULL, OPT_REASSEMBLE},
+	{"xen-syms", required_argument, NULL, OPT_XEN_SYMS},
+	{"xen-vmcoreinfo", required_argument, NULL, OPT_XEN_VMCOREINFO},
+	{"xen_phys_start", required_argument, NULL, OPT_XEN_PHYS_START},
+	{"message-level", required_argument, NULL, OPT_MESSAGE_LEVEL},
+	{"vtop", required_argument, NULL, OPT_VTOP},
+	{"dump-dmesg", no_argument, NULL, OPT_DUMP_DMESG},
+	{"config", required_argument, NULL, OPT_CONFIG},
+	{"help", no_argument, NULL, OPT_HELP},
+	{"diskset", required_argument, NULL, OPT_DISKSET},
+	{"non-cyclic", no_argument, NULL, OPT_NON_CYCLIC},
+	{"cyclic-buffer", required_argument, NULL, OPT_CYCLIC_BUFFER},
+	{"eppic", required_argument, NULL, OPT_EPPIC},
 	{0, 0, 0, 0}
 };
 
@@ -8597,29 +8597,29 @@ main(int argc, char *argv[])
 	
 	info->block_order = DEFAULT_ORDER;
 	message_level = DEFAULT_MSG_LEVEL;
-	while ((opt = getopt_long(argc, argv, "b:cDd:EFfg:hi:lMpRrsvXx:", longopts,
+	while ((opt = getopt_long(argc, argv, "b:cDd:EFfg:hi:lpRvXx:", longopts,
 	    NULL)) != -1) {
 		switch (opt) {
-		case 'b':
+		case OPT_BLOCK_ORDER:
 			info->block_order = atoi(optarg);
 			break;
-		case 'C':
+		case OPT_CONFIG:
 			info->name_filterconfig = optarg;
 			break;
-		case 'c':
+		case OPT_COMPRESS_ZLIB:
 			info->flag_compress = DUMP_DH_COMPRESSED_ZLIB;
 			break;
-		case 'D':
+		case OPT_DEBUG:
 			flag_debug = TRUE;
 			break;
-		case 'd':
+		case OPT_DUMP_LEVEL:
 			if (!parse_dump_level(optarg))
 				goto out;
 			break;
-		case 'E':
+		case OPT_ELF_DUMPFILE:
 			info->flag_elf_dumpfile = 1;
 			break;
-		case 'F':
+		case OPT_FLATTEN:
 			info->flag_flatten = 1;
 			/*
 			 * All messages are output to STDERR because STDOUT is
@@ -8627,75 +8627,75 @@ main(int argc, char *argv[])
 			 */
 			flag_strerr_message = TRUE;
 			break;
-		case 'f':
+		case OPT_FORCE:
 			info->flag_force = 1;
 			break;
-		case 'g':
+		case OPT_GENERATE_VMCOREINFO:
 			info->flag_generate_vmcoreinfo = 1;
 			info->name_vmcoreinfo = optarg;
 			break;
-		case 'h':
+		case OPT_HELP:
 			info->flag_show_usage = 1;
 			break;
-		case 'i':
+		case OPT_READ_VMCOREINFO:
 			info->flag_read_vmcoreinfo = 1;
 			info->name_vmcoreinfo = optarg;
 			break;
-		case 'k':
+		case OPT_DISKSET:
 			if (!sadump_add_diskset_info(optarg))
 				goto out;
 			info->flag_sadump_diskset = 1;
 			break;
-		case 'l':
+		case OPT_COMPRESS_LZO:
 			info->flag_compress = DUMP_DH_COMPRESSED_LZO;
 			break;
-		case 'm':
+		case OPT_MESSAGE_LEVEL:
 			message_level = atoi(optarg);
 			break;
-		case 'M':
+		case OPT_DUMP_DMESG:
 			info->flag_dmesg = 1;
 			break;
-		case 'p':
+		case OPT_COMPRESS_SNAPPY:
 			info->flag_compress = DUMP_DH_COMPRESSED_SNAPPY;
 			break;
-		case 'P':
+		case OPT_XEN_PHYS_START:
 			info->xen_phys_start = strtoul(optarg, NULL, 0);
 			break;
-		case 'R':
+		case OPT_REARRANGE:
 			info->flag_rearrange = 1;
 			break;
-		case 's':
+		case OPT_SPLIT:
 			info->flag_split = 1;
 			break;
-		case 'S':
+		case OPT_EPPIC:
 			info->name_eppic_config = optarg;
 			break;
-		case 'r':
+		case OPT_REASSEMBLE:
 			info->flag_reassemble = 1;
 			break;
-		case 'V':
+		case OPT_VTOP:
 			info->vaddr_for_vtop = strtoul(optarg, NULL, 0);
 			break;
-		case 'v':
+		case OPT_VERSION:
 			info->flag_show_version = 1;
 			break;
-		case 'X':
+		case OPT_EXCLUDE_XEN_DOM:
 			info->flag_exclude_xen_dom = 1;
 			break;
-		case 'x':
+		case OPT_VMLINUX:
 			info->name_vmlinux = optarg;
 			break;
-		case 'y':
+		case OPT_XEN_SYMS:
 			info->name_xen_syms = optarg;
 			break;
-		case 'Y':
+		case OPT_NON_CYCLIC:
 			info->flag_cyclic = FALSE;
 			break;
-		case 'z':
+		case OPT_XEN_VMCOREINFO:
 			info->flag_read_vmcoreinfo = 1;
 			info->name_vmcoreinfo = optarg;
 			break;
-		case 'Z':
+		case OPT_CYCLIC_BUFFER:
 			info->bufsize_cyclic = atoi(optarg);
 			break;
 		case '?':
diff --git a/makedumpfile-1.5.4/makedumpfile.h b/makedumpfile-1.5.4/makedumpfile.h
index a5826e0..79d4702 100644
--- a/makedumpfile-1.5.4/makedumpfile.h
+++ b/makedumpfile-1.5.4/makedumpfile.h
@@ -1671,6 +1671,41 @@ struct elf_prstatus {
 #endif
 
 /*
+ * Below are options which getopt_long can recognize. From OPT_START options are
+ * non-printable, just used for implementation.
+ */
+#define OPT_BLOCK_ORDER         'b'
+#define OPT_COMPRESS_ZLIB       'c'
+#define OPT_DEBUG               'D'
+#define OPT_DUMP_LEVEL          'd'
+#define OPT_ELF_DUMPFILE        'E'
+#define OPT_FLATTEN             'F'
+#define OPT_FORCE               'f'
+#define OPT_GENERATE_VMCOREINFO 'g'
+#define OPT_HELP                'h'
+#define OPT_READ_VMCOREINFO     'i'
+#define OPT_COMPRESS_LZO        'l'
+#define OPT_COMPRESS_SNAPPY     'p'
+#define OPT_REARRANGE           'R'
+#define OPT_VERSION             'v'
+#define OPT_EXCLUDE_XEN_DOM     'X'
+#define OPT_VMLINUX             'x'
+#define OPT_START               256
+#define OPT_SPLIT               OPT_START+0
+#define OPT_REASSEMBLE          OPT_START+1
+#define OPT_XEN_SYMS            OPT_START+2
+#define OPT_XEN_VMCOREINFO      OPT_START+3
+#define OPT_XEN_PHYS_START      OPT_START+4
+#define OPT_MESSAGE_LEVEL       OPT_START+5
+#define OPT_VTOP                OPT_START+6
+#define OPT_DUMP_DMESG          OPT_START+7
+#define OPT_CONFIG              OPT_START+8
+#define OPT_DISKSET             OPT_START+9
+#define OPT_NON_CYCLIC          OPT_START+10
+#define OPT_CYCLIC_BUFFER       OPT_START+11
+#define OPT_EPPIC               OPT_START+12
+
+/*
  * Function Prototype.
  */
 unsigned long long get_num_dumpable_cyclic(void);
-- 
1.8.4.2