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| author | Rich Felker <dalias@aerifal.cx> | 2016-01-25 18:51:33 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-01-25 18:51:33 -0500 |
| commit | 891e6547b4fdec10fe4ffa3b1ef5ddb524bcde39 (patch) | |
| tree | 719297d6a87f705f73a38e1f4cf5783206c2811c /src | |
| parent | 4f8f038060739eca4c5cb97bb067529be96658d2 (diff) | |
| download | musl-891e6547b4fdec10fe4ffa3b1ef5ddb524bcde39.tar.gz musl-891e6547b4fdec10fe4ffa3b1ef5ddb524bcde39.tar.bz2 musl-891e6547b4fdec10fe4ffa3b1ef5ddb524bcde39.tar.xz musl-891e6547b4fdec10fe4ffa3b1ef5ddb524bcde39.zip | |
move static-linked stub invalid dso handle checking out of dynlink.c
Diffstat (limited to 'src')
| -rw-r--r-- | src/ldso/dlerror.c | 12 | ||||
| -rw-r--r-- | src/ldso/dynlink.c | 17 |
2 files changed, 20 insertions, 9 deletions
diff --git a/src/ldso/dlerror.c b/src/ldso/dlerror.c index 588828e9..378f0356 100644 --- a/src/ldso/dlerror.c +++ b/src/ldso/dlerror.c @@ -2,6 +2,7 @@ #include <stdlib.h> #include <stdarg.h> #include "pthread_impl.h" +#include "libc.h" char *dlerror() { @@ -50,3 +51,14 @@ void __dl_seterr(const char *fmt, ...) __dl_vseterr(fmt, ap); va_end(ap); } + +__attribute__((__visibility__("hidden"))) +int __dl_invalid_handle(void *); + +static int stub_invalid_handle(void *h) +{ + __dl_seterr("Invalid library handle %p", (void *)h); + return 1; +} + +weak_alias(stub_invalid_handle, __dl_invalid_handle); diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c index 8d793f26..4f857e5a 100644 --- a/src/ldso/dynlink.c +++ b/src/ldso/dynlink.c @@ -1733,7 +1733,8 @@ end: return p; } -static int invalid_dso_handle(void *h) +__attribute__((__visibility__("hidden"))) +int __dl_invalid_handle(void *h) { struct dso *p; for (p=head; p; p=p->next) if (h==p) return 0; @@ -1788,7 +1789,7 @@ static void *do_dlsym(struct dso *p, const char *s, void *ra) return def.dso->funcdescs + (def.sym - def.dso->syms); return laddr(def.dso, def.sym->st_value); } - if (invalid_dso_handle(p)) + if (__dl_invalid_handle(p)) return 0; if ((ght = p->ghashtab)) { gh = gnu_hash(s); @@ -1913,11 +1914,6 @@ int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void return ret; } #else -static int invalid_dso_handle(void *h) -{ - error("Invalid library handle %p", (void *)h); - return 1; -} void *dlopen(const char *file, int mode) { error("Dynamic loading not supported"); @@ -1930,9 +1926,12 @@ void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra) } #endif +__attribute__((__visibility__("hidden"))) +int __dl_invalid_handle(void *); + int __dlinfo(void *dso, int req, void *res) { - if (invalid_dso_handle(dso)) return -1; + if (__dl_invalid_handle(dso)) return -1; if (req != RTLD_DI_LINKMAP) { error("Unsupported request %d", req); return -1; @@ -1943,7 +1942,7 @@ int __dlinfo(void *dso, int req, void *res) int dlclose(void *p) { - return invalid_dso_handle(p); + return __dl_invalid_handle(p); } __attribute__((__visibility__("hidden"))) |