From: Julien Grall <julien@xen.org>
To: xen-devel@lists.xenproject.org
Cc: julien@xen.org, Julien Grall <jgrall@amazon.com>,
Ian Jackson <iwj@xenproject.org>, Wei Liu <wl@xen.org>
Subject: [PATCH 05/14] tools/libs: guest: Use const whenever we point to literal strings
Date: Mon, 5 Apr 2021 16:57:04 +0100 [thread overview]
Message-ID: <20210405155713.29754-6-julien@xen.org> (raw)
In-Reply-To: <20210405155713.29754-1-julien@xen.org>
From: Julien Grall <jgrall@amazon.com>
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@amazon.com>
---
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 | 9 +++++----
tools/libs/guest/xg_private.h | 2 +-
6 files changed, 18 insertions(+), 17 deletions(-)
diff --git a/tools/include/xenguest.h b/tools/include/xenguest.h
index 217022b6e767..a4492038cf3a 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 98ef8e8fc9ca..4918ee517bdd 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 06e713fe1119..0d6247db5d08 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 ec6ebad7fd52..4e6f30858a59 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 2953aeb90b35..e379b07f9945 100644
--- a/tools/libs/guest/xg_dom_x86.c
+++ b/tools/libs/guest/xg_dom_x86.c
@@ -1148,11 +1148,12 @@ 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;
- uint32_t size;
+ const char *guest;
+ uint32_t size;
} types[] = {
{ "xen-3.0-x86_32p", 32 },
{ "xen-3.0-x86_64", 64 },
@@ -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 8f9b257a2f3d..25e46d7ce195 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);
--
2.17.1
next prev parent reply other threads:[~2021-04-05 15:57 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 15:56 [PATCH 00/14] Use const whether we point to literal strings (take 1) Julien Grall
2021-04-05 15:57 ` [PATCH 01/14] xen: Constify the second parameter of rangeset_new() Julien Grall
2021-04-06 7:57 ` Jan Beulich
2021-04-06 18:03 ` Julien Grall
2021-04-05 15:57 ` [PATCH 02/14] xen/sched: Constify name and opt_name in struct scheduler Julien Grall
2021-04-06 8:07 ` Jan Beulich
2021-04-06 18:24 ` Julien Grall
2021-04-07 8:22 ` Jan Beulich
2021-04-07 9:06 ` Julien Grall
2021-04-06 14:19 ` George Dunlap
2021-04-05 15:57 ` [PATCH 03/14] xen/x86: shadow: The return type of sh_audit_flags() should be const Julien Grall
2021-04-06 7:24 ` Roger Pau Monné
2021-04-06 18:26 ` Julien Grall
2021-04-06 14:00 ` Tim Deegan
2021-04-05 15:57 ` [PATCH 04/14] xen/char: console: Use const whenever we point to literal strings Julien Grall
2021-04-06 8:10 ` Jan Beulich
2021-04-06 18:27 ` Julien Grall
2021-04-05 15:57 ` Julien Grall [this message]
2021-05-11 14:58 ` [PATCH 05/14] tools/libs: guest: " Anthony PERARD
2021-05-18 13:33 ` Julien Grall
2021-04-05 15:57 ` [PATCH 06/14] tools/libs: stat: " Julien Grall
2021-05-11 15:03 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 07/14] tools/xl: " Julien Grall
2021-04-27 16:04 ` Anthony PERARD
2021-04-27 16:28 ` Julien Grall
2021-04-27 17:03 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 08/14] tools/firmware: hvmloader: Use const in __bug() and __assert_failed() Julien Grall
2021-04-06 7:29 ` Roger Pau Monné
2021-04-06 19:02 ` Julien Grall
2021-04-05 15:57 ` [PATCH 09/14] tools/console: Use const whenever we point to literal strings Julien Grall
2021-05-11 15:18 ` Anthony PERARD
2021-05-18 13:48 ` Julien Grall
2021-04-05 15:57 ` [PATCH 10/14] tools/kdd: " Julien Grall
2021-04-06 14:03 ` Tim Deegan
2021-04-05 15:57 ` [PATCH 11/14] tools/misc: " Julien Grall
2021-05-11 15:37 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 12/14] tools/top: The string parameter in set_prompt() and set_delay() should be const Julien Grall
2021-05-11 15:46 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 13/14] tools/xenmon: xenbaked: Mark const the field text in stat_map_t Julien Grall
2021-05-11 16:08 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 14/14] tools/xentrace: Use const whenever we point to literal strings Julien Grall
2021-04-06 14:15 ` George Dunlap
2021-04-05 17:01 ` [PATCH 00/14] Use const whether we point to literal strings (take 1) Elliott Mitchell
2021-04-06 17:55 ` Julien Grall
2021-04-06 7:50 ` Jan Beulich
2021-04-06 19:08 ` Julien Grall
2021-05-10 17:49 ` PING " Julien Grall
2021-05-17 18:41 ` Wei Liu
2021-05-18 14:02 ` Julien Grall
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210405155713.29754-6-julien@xen.org \
--to=julien@xen.org \
--cc=iwj@xenproject.org \
--cc=jgrall@amazon.com \
--cc=wl@xen.org \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).