From: Jeff Dike Date: Sun, 6 May 2007 21:51:00 +0000 (-0700) Subject: uml: print coredump limits X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d94cda04eb82feb87c932ac3d4aef1e9dc78a43;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git uml: print coredump limits Print out core dump limits at boot time. This is to allow core dumps to be collected if something goes very wrong and to tell if a core dump isn't going to happen because of a resource limit. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 5178eba9afa5..1244179e6c83 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -329,8 +330,32 @@ static void __init check_ptrace(void) extern void check_tmpexec(void); +static void check_coredump_limit(void) +{ + struct rlimit lim; + int err = getrlimit(RLIMIT_CORE, &lim); + + if(err){ + perror("Getting core dump limit"); + return; + } + + printf("Core dump limits :\n\tsoft - "); + if(lim.rlim_cur == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_cur); + + printf("\thard - "); + if(lim.rlim_max == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_max); +} + void os_early_checks(void) { + /* Print out the core dump limits early */ + check_coredump_limit(); + check_ptrace(); /* Need to check this early because mmapping happens before the