diff --git a/run_with_sd/README.md b/run_with_sd/README.md new file mode 100644 index 0000000000000000000000000000000000000000..03b3b51c44d48a515da4867ac8629618c42a8c40 --- /dev/null +++ b/run_with_sd/README.md @@ -0,0 +1,8 @@ +# 兼容systemd模式运行问题 + +## 思路 + +## 适配 + +## 验证 + diff --git a/run_with_sd/patches/0001-fake-pid1-by-env.patch b/run_with_sd/patches/0001-fake-pid1-by-env.patch new file mode 100644 index 0000000000000000000000000000000000000000..7ac57432b592cdb664c63fbe87088ea3c9ae0fb8 --- /dev/null +++ b/run_with_sd/patches/0001-fake-pid1-by-env.patch @@ -0,0 +1,126 @@ +From 5d16d1b3ab9013d65906bbaef74164759577ab64 Mon Sep 17 00:00:00 2001 +From: rpm-build +Date: Fri, 5 Nov 2021 10:44:49 +0800 +Subject: [PATCH] fake pid1 by env + +--- + src/basic/process-util.c | 52 ++++++++++++++++++++++++++++++++++++++-- + src/basic/process-util.h | 4 ++++ + src/core/execute.c | 6 ++++- + 3 files changed, 59 insertions(+), 3 deletions(-) + +diff --git a/src/basic/process-util.c b/src/basic/process-util.c +index 7d4301e..b33813d 100644 +--- a/src/basic/process-util.c ++++ b/src/basic/process-util.c +@@ -1147,7 +1147,7 @@ pid_t getpid_cached(void) { + case CACHED_PID_UNSET: { /* Not initialized yet, then do so now */ + pid_t new_pid; + +- new_pid = raw_getpid(); ++ new_pid = getpid(); + + if (!installed) { + /* __register_atfork() either returns 0 or -ENOMEM, in its glibc implementation. Since it's +@@ -1168,7 +1168,7 @@ pid_t getpid_cached(void) { + } + + case CACHED_PID_BUSY: /* Somebody else is currently initializing */ +- return raw_getpid(); ++ return getpid(); + + default: /* Properly initialized */ + return current_value; +@@ -1646,3 +1646,51 @@ static const char* const sched_policy_table[] = { + }; + + DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(sched_policy, int, INT_MAX); ++ ++static pid_t systemd_pid = CACHED_PID_UNSET; ++ ++pid_t getpid() ++{ ++ pid_t pid; ++ ++ pid = syscall(__NR_getpid); ++ if (systemd_pid == CACHED_PID_UNSET) { ++ const char *e = getenv("SYSTEMD_MAINPID"); ++ pid_t p; ++ ++ if (!e) goto out; ++ if (parse_pid(e, &p) < 0) { ++ goto out; ++ } ++ systemd_pid = p; ++ } ++ ++ if (pid == 1 || pid == systemd_pid) ++ return 1; ++out: ++ return pid; ++} ++ ++pid_t getppid() ++{ ++ static pid_t ppid; ++ ++ ppid = syscall(__NR_getppid); ++ if (ppid <= 1) return ppid; ++ ++ if (systemd_pid == CACHED_PID_UNSET) { ++ const char *e = getenv("SYSTEMD_MAINPID"); ++ pid_t p; ++ ++ if (!e) goto out; ++ if (parse_pid(e, &p) < 0) { ++ goto out; ++ } ++ systemd_pid = p; ++ } ++ ++ if (ppid == systemd_pid) ++ return 1; ++out: ++ return ppid; ++} +\ No newline at end of file +diff --git a/src/basic/process-util.h b/src/basic/process-util.h +index ddce7bd..b9293de 100644 +--- a/src/basic/process-util.h ++++ b/src/basic/process-util.h +@@ -202,3 +202,7 @@ int pidfd_get_pid(int fd, pid_t *ret); + int setpriority_closest(int priority); + + bool invoked_as(char *argv[], const char *token); ++ ++pid_t getpid(); ++ ++pid_t getppid(); +\ No newline at end of file +diff --git a/src/core/execute.c b/src/core/execute.c +index 35aea2f..9f46e28 100644 +--- a/src/core/execute.c ++++ b/src/core/execute.c +@@ -1795,7 +1795,7 @@ static int build_environment( + assert(p); + assert(ret); + +-#define N_ENV_VARS 17 ++#define N_ENV_VARS 18 + our_env = new0(char*, N_ENV_VARS + _EXEC_DIRECTORY_TYPE_MAX); + if (!our_env) + return -ENOMEM; +@@ -1956,6 +1956,10 @@ static int build_environment( + + our_env[n_env++] = x; + ++ if (asprintf(&x, "SYSTEMD_MAINPID=%s", getenv("SYSTEMD_MAINPID")) < 0) ++ return -ENOMEM; ++ our_env[n_env++] = x; ++ + our_env[n_env++] = NULL; + assert(n_env <= N_ENV_VARS + _EXEC_DIRECTORY_TYPE_MAX); + #undef N_ENV_VARS +-- +2.30.0 + diff --git a/run_with_sd/patches/0002-detect-virt.patch b/run_with_sd/patches/0002-detect-virt.patch new file mode 100644 index 0000000000000000000000000000000000000000..c27abb235eb29da22ec45056d0315dda74aad1cf --- /dev/null +++ b/run_with_sd/patches/0002-detect-virt.patch @@ -0,0 +1,25 @@ +From 14e3aa6f3d3cfaa14fbd0c2135c2096eaded9223 Mon Sep 17 00:00:00 2001 +From: rpm-build +Date: Mon, 25 Oct 2021 17:18:44 +0800 +Subject: [PATCH] detect virt + +--- + src/basic/virt.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/basic/virt.c b/src/basic/virt.c +index 335f59d..0ab45f1 100644 +--- a/src/basic/virt.c ++++ b/src/basic/virt.c +@@ -779,7 +779,7 @@ int running_in_chroot(void) { + if (getenv_bool("SYSTEMD_IGNORE_CHROOT") > 0) + return 0; + +- r = files_same("/proc/1/root", "/", 0); ++ r = files_same("/proc/self/root", "/", 0); + if (r < 0) + return r; + +-- +2.30.0 + diff --git a/run_with_sd/patches/0003-reap-child-by-systemd.patch b/run_with_sd/patches/0003-reap-child-by-systemd.patch new file mode 100644 index 0000000000000000000000000000000000000000..f299a5e723230a7f9fec4440a22f0ffd28a3299e --- /dev/null +++ b/run_with_sd/patches/0003-reap-child-by-systemd.patch @@ -0,0 +1,25 @@ +From 6b73a150d8e96356f31af3125680e435be7a8296 Mon Sep 17 00:00:00 2001 +From: rpm-build +Date: Tue, 9 Nov 2021 16:17:11 +0800 +Subject: [PATCH] reap child by systemd + +--- + src/core/main.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/core/main.c b/src/core/main.c +index 0ddd629..d0b1af0 100644 +--- a/src/core/main.c ++++ b/src/core/main.c +@@ -2147,7 +2147,7 @@ static int initialize_runtime( + } + } + +- if (!arg_system) 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