diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-06-26 16:06:49 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-12-10 17:42:37 -0300 |
| commit | 720480934ab9107714f1ffc29222dfb5d3bc5b1d (patch) | |
| tree | 3851a6f8fe50b3548e667651805dadb7c242f43b /sysdeps/unix/sysv/linux/sysdep.h | |
| parent | 880433de13fa31e52587720f81b762a6c7797e4e (diff) | |
| download | glibc-720480934ab9107714f1ffc29222dfb5d3bc5b1d.zip glibc-720480934ab9107714f1ffc29222dfb5d3bc5b1d.tar.gz glibc-720480934ab9107714f1ffc29222dfb5d3bc5b1d.tar.bz2 | |
linux: Consolidate brk implementation
It removes all the arch-specific assembly implementation. The
outliers are alpha, where its kernel ABI explict return -ENOMEM
in case of failure; and i686, where it can't use
"call *%gs:SYSINFO_OFFSET" during statup in static PIE.
Also some ABIs exports an additional ___brk_addr symbol and to
handle it an internal HAVE_INTERNAL_BRK_ADDR_SYMBOL is added.
Checked on x86_64-linux-gnu, i686-linux-gnu, adn with builsd for
the affected ABIs.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sysdep.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sysdep.h b/sysdeps/unix/sysv/linux/sysdep.h index 71ecc19..736cf52 100644 --- a/sysdeps/unix/sysv/linux/sysdep.h +++ b/sysdeps/unix/sysv/linux/sysdep.h @@ -99,4 +99,8 @@ it missing due the usage of a old generic version without it). */ #define HAVE_INTERNAL_SEND_SYMBOL 1 +/* Export the ___brk_addr symbol on brk.c implementation (some ABIs export + it due and old crtstuff.c code). */ +#define HAVE_INTERNAL_BRK_ADDR_SYMBOL 0 + #endif /* _SYSDEP_LINUX_H */ |