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kbuild: require gcc-8 and binutils-2.30
Commit a3e8fe814a ("x86/build: Raise the minimum GCC version to 8.1")
raised the minimum compiler version as enforced by Kbuild to gcc-8.1
and clang-15 for x86.
This is actually the same gcc version that has been discussed as the
minimum for all architectures several times in the past, with little
objection. A previous concern was the kernel for SLE15-SP7 needing to
be built with gcc-7. As this ended up still using linux-6.4 and there
is no plan for an SP8, this is no longer a problem.
Change it for all architectures and adjust the documentation accordingly.
A few version checks can be removed in the process. The binutils
version 2.30 is the lowest version used in combination with gcc-8 on
common distros, so use that as the corresponding minimum.
Link: https://lore.kernel.org/lkml/20240925150059.3955569-32-ardb+git@google.com/
Link: https://lore.kernel.org/lkml/871q7yxrgv.wl-tiwai@suse.de/
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
parent
b4432656b3
commit
118c40b7b5
12 changed files with 14 additions and 72 deletions
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@ -259,7 +259,7 @@ Configuring the kernel
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Compiling the kernel
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--------------------
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- Make sure you have at least gcc 5.1 available.
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- Make sure you have at least gcc 8.1 available.
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For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.
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- Do a ``make`` to create a compressed kernel image. It is also possible to do
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@ -625,10 +625,10 @@ gcc-min-version
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Example::
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cflags-$(call gcc-min-version, 70100) := -foo
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cflags-$(call gcc-min-version, 110100) := -foo
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In this example, cflags-y will be assigned the value -foo if $(CC) is gcc and
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$(CONFIG_GCC_VERSION) is >= 7.1.
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$(CONFIG_GCC_VERSION) is >= 11.1.
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clang-min-version
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clang-min-version tests if the value of $(CONFIG_CLANG_VERSION) is greater
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@ -29,13 +29,13 @@ you probably needn't concern yourself with pcmciautils.
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====================== =============== ========================================
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Program Minimal version Command to check the version
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====================== =============== ========================================
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GNU C 5.1 gcc --version
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GNU C 8.1 gcc --version
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Clang/LLVM (optional) 13.0.1 clang --version
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Rust (optional) 1.78.0 rustc --version
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bindgen (optional) 0.65.1 bindgen --version
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GNU make 4.0 make --version
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bash 4.2 bash --version
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binutils 2.25 ld -v
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binutils 2.30 ld -v
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flex 2.5.35 flex --version
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bison 2.0 bison --version
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pahole 1.16 pahole --version
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@ -32,13 +32,13 @@ PC Card, per esempio, probabilmente non dovreste preoccuparvi di pcmciautils.
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====================== ================= ========================================
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Programma Versione minima Comando per verificare la versione
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====================== ================= ========================================
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GNU C 5.1 gcc --version
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GNU C 8.1 gcc --version
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Clang/LLVM (optional) 13.0.0 clang --version
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Rust (opzionale) 1.78.0 rustc --version
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bindgen (opzionale) 0.65.1 bindgen --version
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GNU make 4.0 make --version
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bash 4.2 bash --version
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binutils 2.25 ld -v
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binutils 2.30 ld -v
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flex 2.5.35 flex --version
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bison 2.0 bison --version
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pahole 1.16 pahole --version
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@ -224,7 +224,7 @@ Linux内核6.x版本 <http://kernel.org/>
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编译内核
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---------
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- 确保您至少有gcc 5.1可用。
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- 确保您至少有gcc 8.1可用。
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有关更多信息，请参阅 :ref:`Documentation/process/changes.rst <changes>` 。
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- 执行 ``make`` 来创建压缩内核映像。如果您安装了lilo以适配内核makefile，
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@ -118,9 +118,7 @@ archprepare:
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$(Q)$(MAKE) $(build)=$(HOST_DIR)/um include/generated/user_constants.h
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LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
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ifdef CONFIG_LD_SCRIPT_DYN
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LINK-$(call gcc-min-version, 60100)$(CONFIG_CC_IS_CLANG) += -no-pie
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endif
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LINK-$(CONFIG_LD_SCRIPT_DYN) += -no-pie
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LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib
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CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
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@ -11,10 +11,8 @@
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#ifdef CONFIG_CC_IS_CLANG
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#define __pick_unrolled(x, y) _Pragma(#x)
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#elif CONFIG_GCC_VERSION >= 80000
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#define __pick_unrolled(x, y) _Pragma(#y)
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#else
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#define __pick_unrolled(x, y) /* not supported */
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#define __pick_unrolled(x, y) _Pragma(#y)
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#endif
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/**
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@ -22,10 +22,6 @@
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#define GCOV_COUNTERS 9
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#elif (__GNUC__ >= 10)
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#define GCOV_COUNTERS 8
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#elif (__GNUC__ >= 7)
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#define GCOV_COUNTERS 9
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#elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
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#define GCOV_COUNTERS 10
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#else
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#define GCOV_COUNTERS 9
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#endif
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@ -18,10 +18,7 @@ quiet_cmd_gen_fortify_log = CAT $@
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$(obj)/test_fortify.log: $(addprefix $(obj)/, $(logs)) FORCE
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$(call if_changed,gen_fortify_log)
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# GCC<=7 does not always produce *.d files.
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# Run the tests only for GCC>=8 or Clang.
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always-$(call gcc-min-version, 80000) += test_fortify.log
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always-$(CONFIG_CC_IS_CLANG) += test_fortify.log
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always-y += test_fortify.log
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# Some architectures define __NO_FORTIFY if __SANITIZE_ADDRESS__ is undefined.
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# Pass CFLAGS_KASAN to avoid warnings.
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@ -60,7 +60,7 @@ cc-option-yn = $(if $(call cc-option,$1),y,n)
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cc-disable-warning = $(if $(call cc-option,-W$(strip $1)),-Wno-$(strip $1))
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# gcc-min-version
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# Usage: cflags-$(call gcc-min-version, 70100) += -foo
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# Usage: cflags-$(call gcc-min-version, 110100) += -foo
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gcc-min-version = $(call test-ge, $(CONFIG_GCC_VERSION), $1)
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# clang-min-version
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@ -3,11 +3,7 @@
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#define GCC_COMMON_H_INCLUDED
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#include "bversion.h"
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#if BUILDING_GCC_VERSION >= 6000
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#include "gcc-plugin.h"
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#else
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#include "plugin.h"
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#endif
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#include "plugin-version.h"
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#include "config.h"
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#include "system.h"
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@ -39,9 +35,7 @@
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#include "hash-map.h"
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#if BUILDING_GCC_VERSION >= 7000
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#include "memmodel.h"
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#endif
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#include "emit-rtl.h"
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#include "debug.h"
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#include "target.h"
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@ -74,9 +68,7 @@
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#include "context.h"
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#include "tree-ssa-alias.h"
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#include "tree-ssa.h"
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#if BUILDING_GCC_VERSION >= 7000
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#include "tree-vrp.h"
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#endif
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#include "tree-ssanames.h"
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#include "print-tree.h"
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#include "tree-eh.h"
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@ -149,16 +141,6 @@ static inline opt_pass *get_pass_for_id(int id)
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return g->get_passes()->get_pass_for_id(id);
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}
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#if BUILDING_GCC_VERSION < 6000
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/* gimple related */
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template <>
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template <>
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inline bool is_a_helper<const gassign *>::test(const_gimple gs)
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{
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return gs->code == GIMPLE_ASSIGN;
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}
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#endif
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#define TODO_verify_ssa TODO_verify_il
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#define TODO_verify_flow TODO_verify_il
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#define TODO_verify_stmts TODO_verify_il
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@ -181,7 +163,6 @@ static inline const char *get_decl_section_name(const_tree decl)
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#define varpool_get_node(decl) varpool_node::get(decl)
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#define dump_varpool_node(file, node) (node)->dump(file)
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#if BUILDING_GCC_VERSION >= 8000
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#define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
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(caller)->create_edge((callee), (call_stmt), (count))
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@ -189,15 +170,6 @@ static inline const char *get_decl_section_name(const_tree decl)
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old_call_stmt, call_stmt, count, freq, reason) \
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(caller)->create_edge_including_clones((callee), \
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(old_call_stmt), (call_stmt), (count), (reason))
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#else
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#define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
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(caller)->create_edge((callee), (call_stmt), (count), (freq))
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#define cgraph_create_edge_including_clones(caller, callee, \
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old_call_stmt, call_stmt, count, freq, reason) \
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(caller)->create_edge_including_clones((callee), \
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(old_call_stmt), (call_stmt), (count), (freq), (reason))
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#endif
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typedef struct cgraph_node *cgraph_node_ptr;
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typedef struct cgraph_edge *cgraph_edge_p;
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@ -293,14 +265,12 @@ static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_e
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symtab->call_edge_duplication_hooks(cs1, cs2);
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}
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#if BUILDING_GCC_VERSION >= 6000
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typedef gimple *gimple_ptr;
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typedef const gimple *const_gimple_ptr;
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#define gimple gimple_ptr
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#define const_gimple const_gimple_ptr
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#undef CONST_CAST_GIMPLE
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#define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
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#endif
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/* gimple related */
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static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
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@ -400,15 +370,7 @@ static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimpl
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referring_node->remove_stmt_references(stmt);
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}
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#if BUILDING_GCC_VERSION < 6000
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#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning) \
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get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
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#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
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#endif
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#if BUILDING_GCC_VERSION >= 6000
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#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
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#endif
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#ifdef __cplusplus
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static inline void debug_tree(const_tree t)
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@ -425,15 +387,8 @@ static inline void debug_gimple_stmt(const_gimple s)
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#define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
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#endif
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#if BUILDING_GCC_VERSION >= 7000
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#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning) \
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get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
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#endif
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#if BUILDING_GCC_VERSION < 7000
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#define SET_DECL_ALIGN(decl, align) DECL_ALIGN(decl) = (align)
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#define SET_DECL_MODE(decl, mode) DECL_MODE(decl) = (mode)
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#endif
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#if BUILDING_GCC_VERSION >= 14000
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#define last_stmt(x) last_nondebug_stmt(x)
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@ -14,15 +14,13 @@ fi
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case "$1" in
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binutils)
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echo 2.25.0
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echo 2.30.0
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;;
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gcc)
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if [ "$ARCH" = parisc64 ]; then
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echo 12.0.0
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elif [ "$SRCARCH" = x86 ]; then
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echo 8.1.0
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else
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echo 5.1.0
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echo 8.1.0
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fi
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;;
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llvm)
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