From d2962c51e5588166b0618cd37364df32f040f671 Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Sat, 1 May 2021 10:46:56 -0700 Subject: findutils: Do not use SIGSTKSZ Signed-off-by: Khem Raj Signed-off-by: Richard Purdie --- .../0001-c-stack-stop-using-SIGSTKSZ.patch | 84 ++++++++++++++++++++++ meta/recipes-extended/diffutils/diffutils_3.7.bb | 1 + 2 files changed, 85 insertions(+) create mode 100644 meta/recipes-extended/diffutils/diffutils/0001-c-stack-stop-using-SIGSTKSZ.patch (limited to 'meta/recipes-extended') diff --git a/meta/recipes-extended/diffutils/diffutils/0001-c-stack-stop-using-SIGSTKSZ.patch b/meta/recipes-extended/diffutils/diffutils/0001-c-stack-stop-using-SIGSTKSZ.patch new file mode 100644 index 0000000000..50e627fa30 --- /dev/null +++ b/meta/recipes-extended/diffutils/diffutils/0001-c-stack-stop-using-SIGSTKSZ.patch @@ -0,0 +1,84 @@ +From 87b3a8f9ceb2cf0a5c8b72e460465fb9ff2d62d9 Mon Sep 17 00:00:00 2001 +From: Khem Raj +Date: Fri, 30 Apr 2021 17:40:36 -0700 +Subject: [PATCH] c-stack: stop using SIGSTKSZ + +This patch is required with glibc 2.34+ +based on gnulib [1] + +[1] https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=f9e2b20a12a230efa30f1d479563ae07d276a94b + +Upstream-Status: Pending +Signed-off-by: Khem Raj +--- + lib/c-stack.c | 22 +++++++++++++--------- + 1 file changed, 13 insertions(+), 9 deletions(-) + +diff --git a/lib/c-stack.c b/lib/c-stack.c +index 9bbe6fe..e0874c9 100644 +--- a/lib/c-stack.c ++++ b/lib/c-stack.c +@@ -51,13 +51,14 @@ + typedef struct sigaltstack stack_t; + #endif + #ifndef SIGSTKSZ +-# define SIGSTKSZ 16384 +-#elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384 ++#define get_sigstksz() (16384) ++#elif HAVE_LIBSIGSEGV + /* libsigsegv 2.6 through 2.8 have a bug where some architectures use + more than the Linux default of an 8k alternate stack when deciding + if a fault was caused by stack overflow. */ +-# undef SIGSTKSZ +-# define SIGSTKSZ 16384 ++#define get_sigstksz() ((SIGSTKSZ) < 16384 ? 16384 : (SIGSTKSZ)) ++#else ++#define get_sigstksz() ((SIGSTKSZ)) + #endif + + #include +@@ -136,7 +137,8 @@ die (int signo) + /* Storage for the alternate signal stack. */ + static union + { +- char buffer[SIGSTKSZ]; ++ /* allocate buffer with size from get_sigstksz() */ ++ char *buffer; + + /* These other members are for proper alignment. There's no + standard way to guarantee stack alignment, but this seems enough +@@ -208,10 +210,11 @@ c_stack_action (void (*action) (int)) + program_error_message = _("program error"); + stack_overflow_message = _("stack overflow"); + ++ alternate_signal_stack.buffer = malloc(get_sigstksz()); + /* Always install the overflow handler. */ + if (stackoverflow_install_handler (overflow_handler, + alternate_signal_stack.buffer, +- sizeof alternate_signal_stack.buffer)) ++ get_sigstksz())) + { + errno = ENOTSUP; + return -1; +@@ -284,14 +287,15 @@ c_stack_action (void (*action) (int)) + stack_t st; + struct sigaction act; + st.ss_flags = 0; ++ alternate_signal_stack.buffer = malloc(get_sigstksz()); + # if SIGALTSTACK_SS_REVERSED + /* Irix mistakenly treats ss_sp as the upper bound, rather than + lower bound, of the alternate stack. */ +- st.ss_sp = alternate_signal_stack.buffer + SIGSTKSZ - sizeof (void *); +- st.ss_size = sizeof alternate_signal_stack.buffer - sizeof (void *); ++ st.ss_sp = alternate_signal_stack.buffer + get_sigstksz() - sizeof (void *); ++ st.ss_size = get_sigstksz() - sizeof (void *); + # else + st.ss_sp = alternate_signal_stack.buffer; +- st.ss_size = sizeof alternate_signal_stack.buffer; ++ st.ss_size = get_sigstksz(); + # endif + r = sigaltstack (&st, NULL); + if (r != 0) +-- +2.31.1 + diff --git a/meta/recipes-extended/diffutils/diffutils_3.7.bb b/meta/recipes-extended/diffutils/diffutils_3.7.bb index 8111ae6065..b9a54fea54 100644 --- a/meta/recipes-extended/diffutils/diffutils_3.7.bb +++ b/meta/recipes-extended/diffutils/diffutils_3.7.bb @@ -6,6 +6,7 @@ require diffutils.inc SRC_URI = "${GNU_MIRROR}/diffutils/diffutils-${PV}.tar.xz \ file://run-ptest \ file://0001-Skip-strip-trailing-cr-test-case.patch \ + file://0001-c-stack-stop-using-SIGSTKSZ.patch \ " SRC_URI[md5sum] = "4824adc0e95dbbf11dfbdfaad6a1e461" -- cgit 1.2.3-korg