diff options
Diffstat (limited to 'main/musl/0054-allow-specifying-argv-0-when-invoking-a-program-via-.patch')
| -rw-r--r-- | main/musl/0054-allow-specifying-argv-0-when-invoking-a-program-via-.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/main/musl/0054-allow-specifying-argv-0-when-invoking-a-program-via-.patch b/main/musl/0054-allow-specifying-argv-0-when-invoking-a-program-via-.patch new file mode 100644 index 0000000000..9855ac7778 --- /dev/null +++ b/main/musl/0054-allow-specifying-argv-0-when-invoking-a-program-via-.patch @@ -0,0 +1,48 @@ +From f3055e0163aad1cebb0867078643b36643c5d95f Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Tue, 4 Jul 2017 16:58:28 -0400 +Subject: [PATCH 54/54] allow specifying argv[0] when invoking a program via + ldso command + +previously, the pathname used to load the program was always used as +argv[0]. the default remains the same, but a new --argv0 option can be +used to provide a different value. +--- + ldso/dynlink.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/ldso/dynlink.c b/ldso/dynlink.c +index fc6a68b8..35a90aef 100644 +--- a/ldso/dynlink.c ++++ b/ldso/dynlink.c +@@ -1437,6 +1437,7 @@ _Noreturn void __dls3(size_t *sp) + size_t aux[AUX_CNT], *auxv; + size_t i; + char *env_preload=0; ++ char *replace_argv0=0; + size_t vdso_base; + int argc = *sp; + char **argv = (void *)(sp+1); +@@ -1521,6 +1522,10 @@ _Noreturn void __dls3(size_t *sp) + if (opt[7]=='=') env_preload = opt+8; + else if (opt[7]) *argv = 0; + else if (*argv) env_preload = *argv++; ++ } else if (!memcmp(opt, "argv0", 5)) { ++ if (opt[5]=='=') replace_argv0 = opt+6; ++ else if (opt[5]) *argv = 0; ++ else if (*argv) replace_argv0 = *argv++; + } else { + argv[0] = 0; + } +@@ -1677,6 +1682,8 @@ _Noreturn void __dls3(size_t *sp) + debug.state = 0; + _dl_debug_state(); + ++ if (replace_argv0) argv[0] = replace_argv0; ++ + errno = 0; + + CRTJMP((void *)aux[AT_ENTRY], argv-1); +-- +2.13.1 + |