[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v9 11/18] xenctx: Add error output if --all-vcpus (-C) and [VCPU] are both specified.
To do this correctly the program name must be remembered since argv is adjusted at the end of option parsing. Switch all uses of argv[0] to prog. Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> --- v9: Moved hunk from #12 that should have been here. Added : to error message tools/xentrace/xenctx.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/tools/xentrace/xenctx.c b/tools/xentrace/xenctx.c index ca3662e..caa2991 100644 --- a/tools/xentrace/xenctx.c +++ b/tools/xentrace/xenctx.c @@ -1003,6 +1003,7 @@ int main(int argc, char **argv) { int ch; int ret; + const char *prog = argv[0]; static const char *sopts = "fs:hak:SCn:b:l:Dt" #ifndef NO_TRANSLATION "m:" @@ -1055,7 +1056,7 @@ int main(int argc, char **argv) { fprintf(stderr, "%s: Unsupported value(%d) for --display-stack-pages '%s'. Needs to be >= 1\n", - argv[0], xenctx.nr_stack_pages, optarg); + prog, xenctx.nr_stack_pages, optarg); exit(-1); } break; @@ -1072,7 +1073,7 @@ int main(int argc, char **argv) { fprintf(stderr, "%s: Unsupported value for --bytes-per-line '%s'. Needs to be 4 <= %d <= %d\n", - argv[0], optarg, xenctx.bytes_per_line, + prog, optarg, xenctx.bytes_per_line, MAX_BYTES_PER_LINE); exit(-1); } @@ -1087,7 +1088,7 @@ int main(int argc, char **argv) { fprintf(stderr, "%s: Unsupported value(%d) for --lines '%s'. Needs to be >= 0, < %d\n", - argv[0], xenctx.lines, optarg, INT_MAX); + prog, xenctx.lines, optarg, INT_MAX); exit(-1); } break; @@ -1109,7 +1110,7 @@ int main(int argc, char **argv) usage(); exit(-1); case '?': - fprintf(stderr, "%s --help for more options\n", argv[0]); + fprintf(stderr, "%s --help for more options\n", prog); exit(-1); } } @@ -1127,8 +1128,17 @@ int main(int argc, char **argv) exit(-1); } - if (argc == 2) + if ( argc == 2 ) + { + if ( xenctx.all_vcpus ) + { + fprintf(stderr, + "%s: both --all-vcpus and [VCPU] is not supported\n", + prog); + exit(-1); + } vcpu = atoi(argv[1]); + } if (symbol_table) read_symbol_table(symbol_table); -- 1.8.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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