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authorPaul Mackerras <paulus@samba.org>2008-04-14 07:11:02 -0400
committerPaul Mackerras <paulus@samba.org>2008-04-14 07:11:02 -0400
commitac7c5353b189e10cf5dd27399f64f7b013abffc6 (patch)
tree8222d92b774c256d6ec4399c716d76b3f05ddc4b /arch/powerpc/oprofile/cell
parenta8f75ea70c58546205fb7673be41455b9da5d9a7 (diff)
parent120dd64cacd4fb796bca0acba3665553f1d9ecaa (diff)
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/powerpc/oprofile/cell')
-rw-r--r--arch/powerpc/oprofile/cell/vma_map.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/arch/powerpc/oprofile/cell/vma_map.c b/arch/powerpc/oprofile/cell/vma_map.c
index 5cf53681430a..fff66662d021 100644
--- a/arch/powerpc/oprofile/cell/vma_map.c
+++ b/arch/powerpc/oprofile/cell/vma_map.c
@@ -92,7 +92,7 @@ vma_map_add(struct vma_to_fileoffset_map *map, unsigned int vma,
92 * A pointer to the first vma_map in the generated list 92 * A pointer to the first vma_map in the generated list
93 * of vma_maps is returned. */ 93 * of vma_maps is returned. */
94struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu, 94struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
95 unsigned long spu_elf_start) 95 unsigned long __spu_elf_start)
96{ 96{
97 static const unsigned char expected[EI_PAD] = { 97 static const unsigned char expected[EI_PAD] = {
98 [EI_MAG0] = ELFMAG0, 98 [EI_MAG0] = ELFMAG0,
@@ -107,9 +107,11 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
107 107
108 int grd_val; 108 int grd_val;
109 struct vma_to_fileoffset_map *map = NULL; 109 struct vma_to_fileoffset_map *map = NULL;
110 void __user *spu_elf_start = (void __user *)__spu_elf_start;
110 struct spu_overlay_info ovly; 111 struct spu_overlay_info ovly;
111 unsigned int overlay_tbl_offset = -1; 112 unsigned int overlay_tbl_offset = -1;
112 unsigned long phdr_start, shdr_start; 113 Elf32_Phdr __user *phdr_start;
114 Elf32_Shdr __user *shdr_start;
113 Elf32_Ehdr ehdr; 115 Elf32_Ehdr ehdr;
114 Elf32_Phdr phdr; 116 Elf32_Phdr phdr;
115 Elf32_Shdr shdr, shdr_str; 117 Elf32_Shdr shdr, shdr_str;
@@ -121,12 +123,12 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
121 unsigned int ovly_buf_table_sym = 0; 123 unsigned int ovly_buf_table_sym = 0;
122 unsigned int ovly_table_end_sym = 0; 124 unsigned int ovly_table_end_sym = 0;
123 unsigned int ovly_buf_table_end_sym = 0; 125 unsigned int ovly_buf_table_end_sym = 0;
124 unsigned long ovly_table; 126 struct spu_overlay_info __user *ovly_table;
125 unsigned int n_ovlys; 127 unsigned int n_ovlys;
126 128
127 /* Get and validate ELF header. */ 129 /* Get and validate ELF header. */
128 130
129 if (copy_from_user(&ehdr, (void *) spu_elf_start, sizeof (ehdr))) 131 if (copy_from_user(&ehdr, spu_elf_start, sizeof (ehdr)))
130 goto fail; 132 goto fail;
131 133
132 if (memcmp(ehdr.e_ident, expected, EI_PAD) != 0) { 134 if (memcmp(ehdr.e_ident, expected, EI_PAD) != 0) {
@@ -152,9 +154,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
152 154
153 /* Traverse program headers. */ 155 /* Traverse program headers. */
154 for (i = 0; i < ehdr.e_phnum; i++) { 156 for (i = 0; i < ehdr.e_phnum; i++) {
155 if (copy_from_user(&phdr, 157 if (copy_from_user(&phdr, phdr_start + i, sizeof(phdr)))
156 (void *) (phdr_start + i * sizeof(phdr)),
157 sizeof(phdr)))
158 goto fail; 158 goto fail;
159 159
160 if (phdr.p_type != PT_LOAD) 160 if (phdr.p_type != PT_LOAD)
@@ -171,9 +171,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
171 pr_debug("SPU_PROF: Created non-overlay maps\n"); 171 pr_debug("SPU_PROF: Created non-overlay maps\n");
172 /* Traverse section table and search for overlay-related symbols. */ 172 /* Traverse section table and search for overlay-related symbols. */
173 for (i = 0; i < ehdr.e_shnum; i++) { 173 for (i = 0; i < ehdr.e_shnum; i++) {
174 if (copy_from_user(&shdr, 174 if (copy_from_user(&shdr, shdr_start + i, sizeof(shdr)))
175 (void *) (shdr_start + i * sizeof(shdr)),
176 sizeof(shdr)))
177 goto fail; 175 goto fail;
178 176
179 if (shdr.sh_type != SHT_SYMTAB) 177 if (shdr.sh_type != SHT_SYMTAB)
@@ -182,8 +180,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
182 continue; 180 continue;
183 181
184 if (copy_from_user(&shdr_str, 182 if (copy_from_user(&shdr_str,
185 (void *) (shdr_start + shdr.sh_link * 183 shdr_start + shdr.sh_link,
186 sizeof(shdr)),
187 sizeof(shdr))) 184 sizeof(shdr)))
188 goto fail; 185 goto fail;
189 186
@@ -191,15 +188,15 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
191 goto fail;; 188 goto fail;;
192 189
193 for (j = 0; j < shdr.sh_size / sizeof (sym); j++) { 190 for (j = 0; j < shdr.sh_size / sizeof (sym); j++) {
194 if (copy_from_user(&sym, (void *) (spu_elf_start + 191 if (copy_from_user(&sym, spu_elf_start +
195 shdr.sh_offset + j * 192 shdr.sh_offset +
196 sizeof (sym)), 193 j * sizeof (sym),
197 sizeof (sym))) 194 sizeof (sym)))
198 goto fail; 195 goto fail;
199 196
200 if (copy_from_user(name, (void *) 197 if (copy_from_user(name,
201 (spu_elf_start + shdr_str.sh_offset + 198 spu_elf_start + shdr_str.sh_offset +
202 sym.st_name), 199 sym.st_name,
203 20)) 200 20))
204 goto fail; 201 goto fail;
205 202
@@ -245,9 +242,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
245 242
246 /* Traverse overlay table. */ 243 /* Traverse overlay table. */
247 for (i = 0; i < n_ovlys; i++) { 244 for (i = 0; i < n_ovlys; i++) {
248 if (copy_from_user(&ovly, (void *) 245 if (copy_from_user(&ovly, ovly_table + i, sizeof (ovly)))
249 (ovly_table + i * sizeof (ovly)),
250 sizeof (ovly)))
251 goto fail; 246 goto fail;
252 247
253 /* The ovly.vma/size/offset arguments are analogous to the same 248 /* The ovly.vma/size/offset arguments are analogous to the same