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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] tools/libs: guest: Use const whenever we point to literal strings
commit 8fc4916daf2aac34088ebd5ec3d6fd707ac4221d
Author: Julien Grall <jgrall@xxxxxxxxxx>
AuthorDate: Tue May 18 14:34:22 2021 +0100
Commit: Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Tue May 18 14:54:05 2021 +0100
tools/libs: guest: Use const whenever we point to literal strings
literal strings are not meant to be modified. So we should use const
*char rather than char * when we want to store a pointer to them.
Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Acked-by: Wei Liu <wl@xxxxxxx>
---
tools/include/xenguest.h | 10 +++++-----
tools/libs/guest/xg_dom_core.c | 8 ++++----
tools/libs/guest/xg_dom_elfloader.c | 4 ++--
tools/libs/guest/xg_dom_hvmloader.c | 2 +-
tools/libs/guest/xg_dom_x86.c | 7 ++++---
tools/libs/guest/xg_private.h | 2 +-
6 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/tools/include/xenguest.h b/tools/include/xenguest.h
index 217022b6e7..a4492038cf 100644
--- a/tools/include/xenguest.h
+++ b/tools/include/xenguest.h
@@ -108,7 +108,7 @@ struct xc_dom_image {
/* info from (elf) kernel image */
struct elf_dom_parms *parms;
- char *guest_type;
+ const char *guest_type;
/* memory layout */
struct xc_dom_seg kernel_seg;
@@ -266,8 +266,8 @@ struct xc_dom_arch {
/* arch-specific memory initialization. */
int (*meminit) (struct xc_dom_image * dom);
- char *guest_type;
- char *native_protocol;
+ const char *guest_type;
+ const char *native_protocol;
int page_shift;
int sizeof_pfn;
int p2m_base_supported;
@@ -374,9 +374,9 @@ char *xc_dom_strdup(struct xc_dom_image *dom, const char
*str);
/* --- alloc memory pool ------------------------------------------- */
-xen_pfn_t xc_dom_alloc_page(struct xc_dom_image *dom, char *name);
+xen_pfn_t xc_dom_alloc_page(struct xc_dom_image *dom, const char *name);
int xc_dom_alloc_segment(struct xc_dom_image *dom,
- struct xc_dom_seg *seg, char *name,
+ struct xc_dom_seg *seg, const char *name,
xen_vaddr_t start, xen_vaddr_t size);
/* --- misc bits --------------------------------------------------- */
diff --git a/tools/libs/guest/xg_dom_core.c b/tools/libs/guest/xg_dom_core.c
index 98ef8e8fc9..4918ee517b 100644
--- a/tools/libs/guest/xg_dom_core.c
+++ b/tools/libs/guest/xg_dom_core.c
@@ -422,7 +422,7 @@ void *xc_dom_pfn_to_ptr_retcount(struct xc_dom_image *dom,
xen_pfn_t pfn,
struct xc_dom_phys *phys;
xen_pfn_t offset;
unsigned int page_shift = XC_DOM_PAGE_SHIFT(dom);
- char *mode = "unset";
+ const char *mode = "unset";
*count_out = 0;
@@ -525,7 +525,7 @@ void *xc_dom_pfn_to_ptr_retcount(struct xc_dom_image *dom,
xen_pfn_t pfn,
return phys->ptr;
}
-static int xc_dom_chk_alloc_pages(struct xc_dom_image *dom, char *name,
+static int xc_dom_chk_alloc_pages(struct xc_dom_image *dom, const char *name,
xen_pfn_t pages)
{
unsigned int page_size = XC_DOM_PAGE_SIZE(dom);
@@ -576,7 +576,7 @@ static int xc_dom_alloc_pad(struct xc_dom_image *dom,
xen_vaddr_t boundary)
}
int xc_dom_alloc_segment(struct xc_dom_image *dom,
- struct xc_dom_seg *seg, char *name,
+ struct xc_dom_seg *seg, const char *name,
xen_vaddr_t start, xen_vaddr_t size)
{
unsigned int page_size = XC_DOM_PAGE_SIZE(dom);
@@ -611,7 +611,7 @@ int xc_dom_alloc_segment(struct xc_dom_image *dom,
return 0;
}
-xen_pfn_t xc_dom_alloc_page(struct xc_dom_image *dom, char *name)
+xen_pfn_t xc_dom_alloc_page(struct xc_dom_image *dom, const char *name)
{
xen_vaddr_t start;
xen_pfn_t pfn;
diff --git a/tools/libs/guest/xg_dom_elfloader.c
b/tools/libs/guest/xg_dom_elfloader.c
index 06e713fe11..0d6247db5d 100644
--- a/tools/libs/guest/xg_dom_elfloader.c
+++ b/tools/libs/guest/xg_dom_elfloader.c
@@ -50,8 +50,8 @@ void xc_elf_set_logfile(xc_interface *xch, struct elf_binary
*elf,
/* ------------------------------------------------------------------------ */
-static char *xc_dom_guest_type(struct xc_dom_image *dom,
- struct elf_binary *elf)
+static const char *xc_dom_guest_type(struct xc_dom_image *dom,
+ struct elf_binary *elf)
{
uint64_t machine = elf_uval(elf, elf->ehdr, e_machine);
diff --git a/tools/libs/guest/xg_dom_hvmloader.c
b/tools/libs/guest/xg_dom_hvmloader.c
index ec6ebad7fd..4e6f30858a 100644
--- a/tools/libs/guest/xg_dom_hvmloader.c
+++ b/tools/libs/guest/xg_dom_hvmloader.c
@@ -130,7 +130,7 @@ static elf_errorstatus xc_dom_parse_hvm_kernel(struct
xc_dom_image *dom)
static int module_init_one(struct xc_dom_image *dom,
struct xc_hvm_firmware_module *module,
- char *name)
+ const char *name)
{
struct xc_dom_seg seg;
void *dest;
diff --git a/tools/libs/guest/xg_dom_x86.c b/tools/libs/guest/xg_dom_x86.c
index 2953aeb90b..d2eb89ce01 100644
--- a/tools/libs/guest/xg_dom_x86.c
+++ b/tools/libs/guest/xg_dom_x86.c
@@ -1148,10 +1148,11 @@ static int vcpu_hvm(struct xc_dom_image *dom)
/* ------------------------------------------------------------------------ */
-static int x86_compat(xc_interface *xch, uint32_t domid, char *guest_type)
+static int x86_compat(xc_interface *xch, uint32_t domid,
+ const char *guest_type)
{
static const struct {
- char *guest;
+ const char *guest;
uint32_t size;
} types[] = {
{ "xen-3.0-x86_32p", 32 },
@@ -1664,7 +1665,7 @@ static int bootearly(struct xc_dom_image *dom)
static int bootlate_pv(struct xc_dom_image *dom)
{
static const struct {
- char *guest;
+ const char *guest;
unsigned long pgd_type;
} types[] = {
{ "xen-3.0-x86_32", MMUEXT_PIN_L2_TABLE},
diff --git a/tools/libs/guest/xg_private.h b/tools/libs/guest/xg_private.h
index 8f9b257a2f..25e46d7ce1 100644
--- a/tools/libs/guest/xg_private.h
+++ b/tools/libs/guest/xg_private.h
@@ -43,7 +43,7 @@
#endif
struct xc_dom_loader {
- char *name;
+ const char *name;
/* Sadly the error returns from these functions are not consistent: */
elf_negerrnoval (*probe) (struct xc_dom_image * dom);
elf_negerrnoval (*parser) (struct xc_dom_image * dom);
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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