err() message in main() is misleading: it should print `outfilename`, which is argv[3], not argv[2].
Correct error messages to be more precise about what failed and for which file. Signed-off-by: Dmitry Safonov <d...@arista.com> --- arch/x86/entry/vdso/vdso2c.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/entry/vdso/vdso2c.c b/arch/x86/entry/vdso/vdso2c.c index 8e470b018512..26d7177c119e 100644 --- a/arch/x86/entry/vdso/vdso2c.c +++ b/arch/x86/entry/vdso/vdso2c.c @@ -187,7 +187,7 @@ static void map_input(const char *name, void **addr, size_t *len, int prot) int fd = open(name, O_RDONLY); if (fd == -1) - err(1, "%s", name); + err(1, "open(%s)", name); tmp_len = lseek(fd, 0, SEEK_END); if (tmp_len == (off_t)-1) @@ -240,7 +240,7 @@ int main(int argc, char **argv) outfilename = argv[3]; outfile = fopen(outfilename, "w"); if (!outfile) - err(1, "%s", argv[2]); + err(1, "fopen(%s)", outfilename); go(raw_addr, raw_len, stripped_addr, stripped_len, outfile, name); -- 2.21.0