95d751feac
This patch improves the handling of 64-bit parameters in syscalls on ARM. The ARM EABI mandates that 64-bit quantities be passed in even/odd register pairs, which requires special treatment. This allows us to simplify our implementations of pread() and pwrite() and remove the C stubs for pread64() and pwrite64(). Also add ftruncate64() to <unistd.h> Change-Id: I407e2fd223ba0093dd2d0b04c6152fadfc9ce3ef Bug 3107933
36 lines
608 B
ArmAsm
36 lines
608 B
ArmAsm
/* autogenerated by gensyscalls.py */
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#include <sys/linux-syscalls.h>
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.text
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.type pwrite64, @function
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.globl pwrite64
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.align 4
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pwrite64:
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/* get ready for additonal arg */
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mov.l @r15, r0
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/* invoke trap */
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mov.l 0f, r3 /* trap num */
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trapa #(5 + 0x10)
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/* check return value */
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cmp/pz r0
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bt __NR_pwrite64_end
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/* keep error number */
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sts.l pr, @-r15
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mov.l 1f, r1
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jsr @r1
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mov r0, r4
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lds.l @r15+, pr
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__NR_pwrite64_end:
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rts
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nop
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.align 2
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0: .long __NR_pwrite64
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1: .long __set_syscall_errno
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