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Enable argv[0] tests in more places (#1061)

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Now we do them for assimilated binaries (except on OpenBSD or XNU
non-Silicon), for XnuSilicon, and for binaries with the preserve-
argv[0] auxv flag set. We check whether to pass the argv[0] value
at the test site rather than the Child site. We move a lot of the
test initialization into Child in the non-child case, in order to
get at the pre-init value of `__program_executable_name`. Finally,
we print out info about what we are skipping.
This commit is contained in:
Jōshin 2024-01-06 14:42:03 -05:00 • committed by GitHub
parent b09096691a
commit 636bc4007b
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4 changed files with 41 additions and 25 deletions
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2
libc/calls/getprogramexecutablename.greg.c
View file

@ -25,6 +25,7 @@
#include "libc/errno.h"
#include "libc/fmt/libgen.h"
#include "libc/intrin/getenv.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/limits.h"
#include "libc/macros.internal.h"
#include "libc/nt/runtime.h"
@ -260,5 +261,6 @@ static void InitProgramExecutableName(void) {
*/
char *GetProgramExecutableName(void) {
cosmo_once(&g_prog.once, InitProgramExecutableName);
STRACE("GetProgramExecutableName() → %#s", __program_executable_name);
return __program_executable_name;
}

16
libc/sysv/consts/auxv.h
View file

@ -4,13 +4,15 @@
/*
* integral getauxval() keys
*/
#define AT_PHDR 3
#define AT_PHENT 4
#define AT_PHNUM 5
#define AT_PAGESZ 6
#define AT_BASE 7
#define AT_FLAGS 8
#define AT_ENTRY 9
#define AT_PHDR 3
#define AT_PHENT 4
#define AT_PHNUM 5
#define AT_PAGESZ 6
#define AT_BASE 7
#define AT_FLAGS 8
#define AT_FLAGS_PRESERVE_ARGV0_BIT 0
#define AT_FLAGS_PRESERVE_ARGV0 (1 << AT_FLAGS_PRESERVE_ARGV0_BIT)
#define AT_ENTRY 9
COSMOPOLITAN_C_START_