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Prioritize argv[0]

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Using `COSMOPOLITAN_PROGRAM_EXECUTABLE` without a `sys_faccessat` was
rightly causing test failures. Now that it is no longer used by the
loader, there seems little value in prioritizing it over argv[0], so
just lump it in with "_".
This commit is contained in:
Jōshin 2023-12-15 17:06:48 +00:00
parent c8395bf2f3
commit 42bf4d2a9f
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1 changed files with 4 additions and 8 deletions
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12
libc/calls/getprogramexecutablename.greg.c
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@ -116,12 +116,6 @@ static inline void InitProgramExecutableNameImpl(void) {
goto UseEmpty;
}
/* the previous loader supplied the full program path as the first
environment variable. */
if ((q = __getenv(__envp, "COSMOPOLITAN_PROGRAM_EXECUTABLE").s)) {
goto CopyString;
}
// if argv[0] exists then turn it into an absolute path. we also try
// adding a .com suffix since the ape auto-appends it when resolving
if ((q = __argv[0])) {
@ -149,8 +143,10 @@ static inline void InitProgramExecutableNameImpl(void) {
if (!sys_faccessat(AT_FDCWD, g_prog.u.buf, F_OK, 0)) goto UseBuf;
}
// if getenv("_") exists then use that
if ((q = __getenv(__envp, "_").s)) {
/* the previous loader supplied the full program path as the first
environment variable. we also try "_". */
if ((q = __getenv(__envp, "COSMOPOLITAN_PROGRAM_EXECUTABLE").s) ||
(q = __getenv(__envp, "_").s)) {
goto CopyString;
}