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missing_fcntl: Fix RAW_O_LARGEFILE

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This value is actually arch-specific, so this commit defines it for all
the arches that set it to some custom value

Fixes https://github.com/systemd/systemd/issues/31417
This commit is contained in:
Adrian Vovk
2024-02-20 14:24:01 -05:00
parent 8e94bb62a5
commit 9e3db91f2f
1 changed files with 19 additions and 2 deletions
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21
src/basic/missing_fcntl.h
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@@ -69,9 +69,26 @@
/* So O_LARGEFILE is generally implied by glibc, and defined to zero hence, because we only build in LFS
* mode. However, when invoking fcntl(F_GETFL) the flag is ORed into the result anyway — glibc does not mask
* it away. Which sucks. Let's define the actual value here, so that we can mask it ourselves. */
* it away. Which sucks. Let's define the actual value here, so that we can mask it ourselves.
*
* The precise definition is arch specific, so we use the values defined in the kernel (note that some
* are hexa and others are octal; duplicated as-is from the kernel definitions):
* - alpha, arm, arm64, m68k, mips, parisc, powerpc, sparc: each has a specific value;
* - others: they use the "generic" value (defined in include/uapi/asm-generic/fcntl.h) */
#if O_LARGEFILE != 0
#define RAW_O_LARGEFILE O_LARGEFILE
#else
#define RAW_O_LARGEFILE 0100000
#if defined(__alpha__) || defined(__arm__) || defined(__aarch64__) || defined(__m68k__)
#define RAW_O_LARGEFILE 0400000
#elif defined(__mips__)
#define RAW_O_LARGEFILE 0x2000
#elif defined(__parisc__) || defined(__hppa__)
#define RAW_O_LARGEFILE 000004000
#elif defined(__powerpc__)
#define RAW_O_LARGEFILE 0200000
#elif defined(__sparc__)
#define RAW_O_LARGEFILE 0x40000
#else
#define RAW_O_LARGEFILE 00100000
#endif
#endif