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[Qemu-devel] [PATCH 3/4] dump: extract out get note size function
From: |
Rabin Vincent |
Subject: |
[Qemu-devel] [PATCH 3/4] dump: extract out get note size function |
Date: |
Wed, 20 Jun 2012 22:58:22 +0530 |
Extract out the ELF note size function from i386 so we can use it from
other targets.
Signed-off-by: Rabin Vincent <address@hidden>
---
dump.c | 15 +++++++++++++++
dump.h | 2 ++
target-i386/arch_dump.c | 14 ++------------
3 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/dump.c b/dump.c
index be96c6c..d3ca953 100644
--- a/dump.c
+++ b/dump.c
@@ -468,6 +468,21 @@ static target_phys_addr_t get_offset(target_phys_addr_t
phys_addr,
return -1;
}
+size_t dump_get_note_size(int class, const char *name, size_t descsz)
+{
+ int name_size = strlen(name) + 1;
+ int note_head_size;
+
+ if (class == ELFCLASS32) {
+ note_head_size = sizeof(Elf32_Nhdr);
+ } else {
+ note_head_size = sizeof(Elf64_Nhdr);
+ }
+
+ return ((note_head_size + 3) / 4 + (name_size + 3) / 4
+ + (descsz + 3) / 4) * 4;
+}
+
int dump_write_elf_note(int class, const char *name, uint32_t type,
void *desc, size_t descsz,
write_core_dump_function f, void *opaque)
diff --git a/dump.h b/dump.h
index b07816a..a06b149 100644
--- a/dump.h
+++ b/dump.h
@@ -36,4 +36,6 @@ int dump_write_elf_note(int class, const char *name, uint32_t
type, void *desc,
size_t descsz, write_core_dump_function f,
void *opaque);
+size_t dump_get_note_size(int class, const char *name, size_t descsz);
+
#endif
diff --git a/target-i386/arch_dump.c b/target-i386/arch_dump.c
index dbc94bc..e2d18a0 100644
--- a/target-i386/arch_dump.c
+++ b/target-i386/arch_dump.c
@@ -305,18 +305,10 @@ int cpu_get_dump_info(ArchDumpInfo *info)
ssize_t cpu_get_note_size(int class, int machine, int nr_cpus)
{
- int name_size = 5; /* "CORE" or "QEMU" */
size_t elf_note_size = 0;
size_t qemu_note_size = 0;
int elf_desc_size = 0;
int qemu_desc_size = 0;
- int note_head_size;
-
- if (class == ELFCLASS32) {
- note_head_size = sizeof(Elf32_Nhdr);
- } else {
- note_head_size = sizeof(Elf64_Nhdr);
- }
if (machine == EM_386) {
elf_desc_size = sizeof(x86_elf_prstatus);
@@ -328,10 +320,8 @@ ssize_t cpu_get_note_size(int class, int machine, int
nr_cpus)
#endif
qemu_desc_size = sizeof(QEMUCPUState);
- elf_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
- (elf_desc_size + 3) / 4) * 4;
- qemu_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
- (qemu_desc_size + 3) / 4) * 4;
+ elf_note_size = dump_get_note_size(class, "CORE", elf_desc_size);
+ qemu_note_size = dump_get_note_size(class, "QEMU", qemu_desc_size);
return (elf_note_size + qemu_note_size) * nr_cpus;
}
--
1.7.9.5