mlx4_core: Support ICM tables in coherent memory

[pandora-kernel.git] / scripts / kallsyms.c

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 22d281c..1f11d84 100644 (file)
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -24,14 +24,12 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 
-#define KSYM_NAME_LEN          127
+#define KSYM_NAME_LEN          128
 
 
 struct sym_entry {
@@ -43,7 +41,7 @@ struct sym_entry {
 
 static struct sym_entry *table;
 static unsigned int table_size, table_cnt;
-static unsigned long long _stext, _etext, _sinittext, _einittext, _sextratext, _eextratext;
+static unsigned long long _text, _stext, _etext, _sinittext, _einittext, _sextratext, _eextratext;
 static int all_symbols = 0;
 static char symbol_prefix_char = '\0';
 
@@ -91,7 +89,9 @@ static int read_symbol(FILE *in, struct sym_entry *s)
                sym++;
 
        /* Ignore most absolute/undefined (?) symbols. */
-       if (strcmp(sym, "_stext") == 0)
+       if (strcmp(sym, "_text") == 0)
+               _text = s->addr;
+       else if (strcmp(sym, "_stext") == 0)
                _stext = s->addr;
        else if (strcmp(sym, "_etext") == 0)
                _etext = s->addr;
@@ -252,7 +252,7 @@ static void write_src(void)
        unsigned int i, k, off;
        unsigned int best_idx[256];
        unsigned int *markers;
-       char buf[KSYM_NAME_LEN+1];
+       char buf[KSYM_NAME_LEN];
 
        printf("#include <asm/types.h>\n");
        printf("#if BITS_PER_LONG == 64\n");
@@ -263,11 +263,27 @@ static void write_src(void)
        printf("#define ALGN .align 4\n");
        printf("#endif\n");
 
-       printf(".data\n");
+       printf("\t.section .rodata, \"a\"\n");
 
+       /* Provide proper symbols relocatability by their '_text'
+        * relativeness.  The symbol names cannot be used to construct
+        * normal symbol references as the list of symbols contains
+        * symbols that are declared static and are private to their
+        * .o files.  This prevents .tmp_kallsyms.o or any other
+        * object from referencing them.
+        */
        output_label("kallsyms_addresses");
        for (i = 0; i < table_cnt; i++) {
-               printf("\tPTR\t%#llx\n", table[i].addr);
+               if (toupper(table[i].sym[0]) != 'A') {
+                       if (_text <= table[i].addr)
+                               printf("\tPTR\t_text + %#llx\n",
+                                       table[i].addr - _text);
+                       else
+                               printf("\tPTR\t_text - %#llx\n",
+                                       _text - table[i].addr);
+               } else {
+                       printf("\tPTR\t%#llx\n", table[i].addr);
+               }
        }
        printf("\n");
 
@@ -360,6 +376,17 @@ static void build_initial_tok_table(void)
        table_cnt = pos;
 }
 
+static void *find_token(unsigned char *str, int len, unsigned char *token)
+{
+       int i;
+
+       for (i = 0; i < len - 1; i++) {
+               if (str[i] == token[0] && str[i+1] == token[1])
+                       return &str[i];
+       }
+       return NULL;
+}
+
 /* replace a given token in all the valid symbols. Use the sampled symbols
  * to update the counts */
 static void compress_symbols(unsigned char *str, int idx)
@@ -373,7 +400,7 @@ static void compress_symbols(unsigned char *str, int idx)
                p1 = table[i].sym;
 
                /* find the token on the symbol */
-               p2 = memmem(p1, len, str, 2);
+               p2 = find_token(p1, len, str);
                if (!p2) continue;
 
                /* decrease the counts for this symbol's tokens */
@@ -392,7 +419,7 @@ static void compress_symbols(unsigned char *str, int idx)
                        if (size < 2) break;
 
                        /* find the token on the symbol */
-                       p2 = memmem(p1, size, str, 2);
+                       p2 = find_token(p1, size, str);
 
                } while (p2);