musl - musl - an implementation of the standard library for Linux-based systems

musl - an implementation of the standard library for Linux-based systems

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author	Rich Felker <dalias@aerifal.cx>	2013年04月06日 17:50:37 -0400
committer	Rich Felker <dalias@aerifal.cx>	2013年04月06日 17:50:37 -0400
commit	b4ea63856a6af3d1bcc2db12537785371ac2024c (patch)
tree	689c9acbdd5e5339261988fb4f6ba007eb345d6b /src/internal/libc.c
parent	5c5ac810c31a77dd17b95bb93e13487a3c1c1433 (diff)
download	musl-b4ea63856a6af3d1bcc2db12537785371ac2024c.tar.gz

add support for program_invocation[_short]_name

this is a bit ugly, and the motivation for supporting it is questionable. however the main factors were: 1. it will be useful to have this for certain internal purposes anyway -- things like syslog. 2. applications can just save argv[0] in main, but it's hard to fix non-portable library code that's depending on being able to get the invocation name without the main application's help.

Diffstat (limited to 'src/internal/libc.c')

-rw-r--r--

src/internal/libc.c

1 files changed, 4 insertions, 0 deletions

diff --git a/src/internal/libc.c b/src/internal/libc.c
index d22d2747..942f6b44 100644
--- a/src/internal/libc.c
+++ b/src/internal/libc.c

@@ -16,3 +16,7 @@ __asm__(".hidden __libc");

size_t __hwcap;

size_t __sysinfo;

+char *__progname=0, *__progname_full=0;

+weak_alias(__progname, program_invocation_short_name);

+weak_alias(__progname_full, program_invocation_name);

generated by cgit v1.2.1 (git 2.18.0) at 2025年10月04日 22:48:40 +0000