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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-06-26 16:06:49 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-12-10 17:42:37 -0300
commit720480934ab9107714f1ffc29222dfb5d3bc5b1d (patch)
tree3851a6f8fe50b3548e667651805dadb7c242f43b /sysdeps/unix/sysv/linux/arc/sysdep.h
parent880433de13fa31e52587720f81b762a6c7797e4e (diff)
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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/arc/sysdep.h')
-rw-r--r--sysdeps/unix/sysv/linux/arc/sysdep.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.h b/sysdeps/unix/sysv/linux/arc/sysdep.h
index 8465a2f623..24d8866d66 100644
--- a/sysdeps/unix/sysv/linux/arc/sysdep.h
+++ b/sysdeps/unix/sysv/linux/arc/sysdep.h
@@ -221,6 +221,9 @@ hidden_proto (__syscall_error)
 # define PTR_MANGLE(var) (void) (var)
 # define PTR_DEMANGLE(var) (void) (var)
 
+# undef HAVE_INTERNAL_BRK_ADDR_SYMBOL
+# define HAVE_INTERNAL_BRK_ADDR_SYMBOL  1
+
 #endif /* !__ASSEMBLER__ */
 
 #endif /* linux/arc/sysdep.h */