Last Sync: 2026-02-22 01:58 (Mobile)

Author: jwbb903

.github/workflows/main.yml

@@ -50,7 +50,7 @@ jobs:
             locales \
             curl \
             ca-certificates \
-            m4
+            m4  # 安装系统 m4，用于替代 host-m4
           
           sudo ln -sf /usr/bin/python2 /usr/bin/python
           sudo locale-gen en_US.UTF-8
@@ -124,11 +124,11 @@ jobs:
           BR2_PACKAGE_HOST_MTOOLS=y
           EOF
 
-      - name: Initialize Buildroot (without host/usr interference)
+      - name: Initialize Buildroot
         run: |
           cd ~/buildroot-work/buildroot-2018.02-rc3
           
-          # 只创建必要的顶层输出目录，不创建 host/usr 子目录
+          # 创建必要的输出目录（不深入创建 host/usr）
           mkdir -p output/build
           mkdir -p output/images
           mkdir -p output/target
@@ -149,150 +149,20 @@ jobs:
             exit 1
           fi
 
-      - name: Manually patch host-m4 source
+      - name: Fake host-m4 build (use system m4)
         run: |
           cd ~/buildroot-work/buildroot-2018.02-rc3
           
-          # 先解压 host-m4（如果尚未解压）
-          make host-m4-extract || true
+          # 彻底删除可能存在的旧 host-m4 构建目录
+          rm -rf output/build/host-m4-1.4.18
           
-          # 进入源码目录
-          M4_SRC_DIR="output/build/host-m4-1.4.18"
-          if [ -d "$M4_SRC_DIR" ]; then
-            echo "Patching c-stack.c in $M4_SRC_DIR"
-            cat > "$M4_SRC_DIR/lib/c-stack.c" << 'EOF'
-          /* c-stack.c - stack overflow handling
+          # 创建空的构建目录，并放入所有必需的 stamp 文件
+          mkdir -p output/build/host-m4-1.4.18
+          touch output/build/host-m4-1.4.18/.stamp_configured
+          touch output/build/host-m4-1.4.18/.stamp_patched
+          touch output/build/host-m4-1.4.18/.stamp_built
           
-             Copyright (C) 2002, 2004, 2006-2016 Free Software Foundation, Inc.
-          
-             This program is free software: you can redistribute it and/or modify
-             it under the terms of the GNU General Public License as published by
-             the Free Software Foundation; either version 3 of the License, or
-             (at your option) any later version.
-          
-             This program is distributed in the hope that it will be useful,
-             but WITHOUT ANY WARRANTY; without even the implied warranty of
-             MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-             GNU General Public License for more details.
-          
-             You should have received a copy of the GNU General Public License
-             along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-          
-          /* Written by Paul Eggert.  */
-          
-          #include <config.h>
-          
-          #include <errno.h>
-          #include <signal.h>
-          #include <stdbool.h>
-          #include <stdlib.h>
-          #include <string.h>
-          #include <unistd.h>
-          
-          #include "c-stack.h"
-          
-          #if HAVE_SETRLIMIT
-          /* FIXME: This use of HAVE_SETRLIMIT is wrong, as it checks for the
-             function, not the symbol.  But glibc defines setrlimit unconditionally,
-             at least in conservative environments.  */
-          # include <sys/time.h>
-          # include <sys/resource.h>
-          #endif
-          
-          #if HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T
-          # include <ucontext.h>
-          #endif
-          
-          #include <sigsegv.h>
-          
-          #if HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T
-          /* Storage for the alternate signal stack.  */
-          static union
-          {
-            char buffer[SIGSTKSZ];
-            stack_t ss;
-          } alternate_signal_stack;
-          
-          static void
-          null_action (int signo __attribute__ ((unused)),
-                       siginfo_t *info __attribute__ ((unused)),
-                       void *context __attribute__ ((unused)))
-          {
-          }
-          #endif /* HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T */
-          
-          /* The user-specified action.  */
-          static void (* volatile action) (int) = NULL;
-          
-          static void
-          segv_handler (int signo __attribute__ ((unused)),
-                        siginfo_t *info __attribute__ ((unused)),
-                        void *context __attribute__ ((unused)))
-          {
-          #if HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T
-            ucontext_t const *uc = context;
-          
-            /* If the faulting address is within the stack, or within the
-               kernel's specially designated stack overflow area, assume that
-               this is a stack overflow.  */
-            if (0 < uc->uc_stack.ss_size)
-              {
-                char *const stack_base = (char *) uc->uc_stack.ss_sp;
-                size_t stack_size = uc->uc_stack.ss_size;
-                char *const fault = (char *) info->si_addr;
-                size_t page_size = sysconf (_SC_PAGE_SIZE);
-                if (page_size == (size_t) -1)
-                  page_size = 4096;
-          
-                if (stack_base <= fault && fault < stack_base + stack_size + page_size)
-                  {
-                    if (action)
-                      action (SIGSEGV);
-                    else
-                      {
-                        /* Reset the handler to the default and re-raise the
-                           signal.  */
-                        struct sigaction act;
-                        act.sa_handler = SIG_DFL;
-                        sigemptyset (&act.sa_mask);
-                        act.sa_flags = 0;
-                        sigaction (SIGSEGV, &act, NULL);
-                        raise (SIGSEGV);
-                      }
-                  }
-              }
-          #endif /* HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T */
-          }
-          
-          int
-          c_stack_action (void (*func) (int))
-          {
-            int r = sigsegv_install_handler (segv_handler);
-            if (r == 0)
-              {
-                action = func;
-          
-          #if HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T
-                /* Use libsigsegv to set up an alternate stack.  */
-                r = sigsegv_init (&alternate_signal_stack.ss);
-                if (r == 0)
-                  {
-                    alternate_signal_stack.ss.ss_flags = 0;
-                    if (sigaltstack (&alternate_signal_stack.ss, NULL) < 0)
-                      r = -1;
-                  }
-          #endif /* HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK && HAVE_STACK_T */
-              }
-          
-            return r;
-          }
-          EOF
-            # 标记为已打补丁（防止再次尝试应用补丁）
-            touch "$M4_SRC_DIR/.stamp_patched"
-            echo "✅ host-m4 manually patched"
-          else
-            echo "⚠️ host-m4 source not found, will be handled during build"
-          fi
+          echo "✅ host-m4 faked, will use system m4"
 
       - name: Build toolchain
         run: |
@@ -303,7 +173,7 @@ jobs:
           echo "=== Build Targets ==="
           make show-targets || true
           
-          # 开始构建
+          # 开始构建 toolchain（host-m4 已被跳过）
           make toolchain -j2
         env:
           FORCE_UNSAFE_CONFIGURE: 1