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change ldso path file logic to replace rather than add to search path

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this change was originally intended just to avoid repeated attempts to
open a nonexistant /etc/ls-musl-$(ARCH).path file, but I realized it
also prevents the default paths from being searched when such a path
file exists. despite the potential to break existing usage, I believe
the new behavior is the right behavior, and it's better to fix it
sooner rather than later. with the old behavior, it was impossible to
inhibit search of default paths which might contain musl-incompatible
libs (or even libs from a different cpu arch, on multi-arch machines).
This commit is contained in:
Rich Felker 2012-11-08 22:41:16 -05:00
parent 3d9e3a309f
commit 40d5f7eb83
1 changed files with 2 additions and 2 deletions
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4
src/ldso/dynlink.c
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@ -483,8 +483,8 @@ static struct dso *load_library(const char *name)
fclose(f);
}
}
if (sys_path) fd = path_open(name, sys_path, buf, sizeof buf);
else fd = path_open(name, "/lib:/usr/local/lib:/usr/lib", buf, sizeof buf);
if (!sys_path) sys_path = "/lib:/usr/local/lib:/usr/lib";
fd = path_open(name, sys_path, buf, sizeof buf);
}
pathname = buf;
}