Merge tag 'kbuild-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Remove tristate choice support from Kconfig

 - Stop using the PROVIDE() directive in the linker script

 - Reduce the number of links for the combination of CONFIG_KALLSYMS and
   CONFIG_DEBUG_INFO_BTF

 - Enable the warning for symbol reference to .exit.* sections by
   default

 - Fix warnings in RPM package builds

 - Improve scripts/make_fit.py to generate a FIT image with separate
   base DTB and overlays

 - Improve choice value calculation in Kconfig

 - Fix conditional prompt behavior in choice in Kconfig

 - Remove support for the uncommon EMAIL environment variable in Debian
   package builds

 - Remove support for the uncommon "name <email>" form for the DEBEMAIL
   environment variable

 - Raise the minimum supported GNU Make version to 4.0

 - Remove stale code for the absolute kallsyms

 - Move header files commonly used for host programs to scripts/include/

 - Introduce the pacman-pkg target to generate a pacman package used in
   Arch Linux

 - Clean up Kconfig

* tag 'kbuild-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (65 commits)
  kbuild: doc: gcc to CC change
  kallsyms: change sym_entry::percpu_absolute to bool type
  kallsyms: unify seq and start_pos fields of struct sym_entry
  kallsyms: add more original symbol type/name in comment lines
  kallsyms: use \t instead of a tab in printf()
  kallsyms: avoid repeated calculation of array size for markers
  kbuild: add script and target to generate pacman package
  modpost: use generic macros for hash table implementation
  kbuild: move some helper headers from scripts/kconfig/ to scripts/include/
  Makefile: add comment to discourage tools/* addition for kernel builds
  kbuild: clean up scripts/remove-stale-files
  kconfig: recursive checks drop file/lineno
  kbuild: rpm-pkg: introduce a simple changelog section for kernel.spec
  kallsyms: get rid of code for absolute kallsyms
  kbuild: Create INSTALL_PATH directory if it does not exist
  kbuild: Abort make on install failures
  kconfig: remove 'e1' and 'e2' macros from expression deduplication
  kconfig: remove SYMBOL_CHOICEVAL flag
  kconfig: add const qualifiers to several function arguments
  kconfig: call expr_eliminate_yn() at least once in expr_eliminate_dups()
  ...
This commit is contained in:
Linus Torvalds
2024-07-23 14:32:21 -07:00
95 changed files with 1017 additions and 1468 deletions

View File

@@ -20,6 +20,9 @@
#include <limits.h>
#include <stdbool.h>
#include <errno.h>
#include <hashtable.h>
#include <list.h>
#include "modpost.h"
#include "../../include/linux/license.h"
@@ -199,13 +202,8 @@ static struct module *new_module(const char *name, size_t namelen)
return mod;
}
/* A hash of all exported symbols,
* struct symbol is also used for lists of unresolved symbols */
#define SYMBOL_HASH_SIZE 1024
struct symbol {
struct symbol *next;
struct hlist_node hnode;/* link to hash table */
struct list_head list; /* link to module::exported_symbols or module::unresolved_symbols */
struct module *module;
char *namespace;
@@ -218,7 +216,7 @@ struct symbol {
char name[];
};
static struct symbol *symbolhash[SYMBOL_HASH_SIZE];
static HASHTABLE_DEFINE(symbol_hashtable, 1U << 10);
/* This is based on the hash algorithm from gdbm, via tdb */
static inline unsigned int tdb_hash(const char *name)
@@ -250,11 +248,7 @@ static struct symbol *alloc_symbol(const char *name)
/* For the hash of exported symbols */
static void hash_add_symbol(struct symbol *sym)
{
unsigned int hash;
hash = tdb_hash(sym->name) % SYMBOL_HASH_SIZE;
sym->next = symbolhash[hash];
symbolhash[hash] = sym;
hash_add(symbol_hashtable, &sym->hnode, tdb_hash(sym->name));
}
static void sym_add_unresolved(const char *name, struct module *mod, bool weak)
@@ -275,7 +269,7 @@ static struct symbol *sym_find_with_module(const char *name, struct module *mod)
if (name[0] == '.')
name++;
for (s = symbolhash[tdb_hash(name) % SYMBOL_HASH_SIZE]; s; s = s->next) {
hash_for_each_possible(symbol_hashtable, s, hnode, tdb_hash(name)) {
if (strcmp(s->name, name) == 0 && (!mod || s->module == mod))
return s;
}
@@ -954,17 +948,6 @@ static int secref_whitelist(const char *fromsec, const char *fromsym,
match(fromsym, PATTERNS("*_ops", "*_probe", "*_console")))
return 0;
/*
* symbols in data sections must not refer to .exit.*, but there are
* quite a few offenders, so hide these unless for W=1 builds until
* these are fixed.
*/
if (!extra_warn &&
match(fromsec, PATTERNS(DATA_SECTIONS)) &&
match(tosec, PATTERNS(ALL_EXIT_SECTIONS)) &&
match(fromsym, PATTERNS("*driver")))
return 0;
/* Check for pattern 3 */
if (strstarts(fromsec, ".head.text") &&
match(tosec, PATTERNS(ALL_INIT_SECTIONS)))
@@ -1168,40 +1151,6 @@ static Elf_Addr addend_386_rel(uint32_t *location, unsigned int r_type)
return (Elf_Addr)(-1);
}
#ifndef R_ARM_CALL
#define R_ARM_CALL 28
#endif
#ifndef R_ARM_JUMP24
#define R_ARM_JUMP24 29
#endif
#ifndef R_ARM_THM_CALL
#define R_ARM_THM_CALL 10
#endif
#ifndef R_ARM_THM_JUMP24
#define R_ARM_THM_JUMP24 30
#endif
#ifndef R_ARM_MOVW_ABS_NC
#define R_ARM_MOVW_ABS_NC 43
#endif
#ifndef R_ARM_MOVT_ABS
#define R_ARM_MOVT_ABS 44
#endif
#ifndef R_ARM_THM_MOVW_ABS_NC
#define R_ARM_THM_MOVW_ABS_NC 47
#endif
#ifndef R_ARM_THM_MOVT_ABS
#define R_ARM_THM_MOVT_ABS 48
#endif
#ifndef R_ARM_THM_JUMP19
#define R_ARM_THM_JUMP19 51
#endif
static int32_t sign_extend32(int32_t value, int index)
{
uint8_t shift = 31 - index;
@@ -1262,7 +1211,7 @@ static Elf_Addr addend_arm_rel(void *loc, Elf_Sym *sym, unsigned int r_type)
((lower & 0x07ff) << 1),
20);
return offset + sym->st_value + 4;
case R_ARM_THM_CALL:
case R_ARM_THM_PC22:
case R_ARM_THM_JUMP24:
/*
* Encoding T4: