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auto merge of #12878 : crabtw/rust/mips, r=alexcrichton

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I ignored AtomicU64 methods on MIPS target
because libgcc doesn't implement MIPS32 64-bit atomic operations.
Otherwise it would cause link failure.

By the way, the patched LLVM doesn't have MIPS split stack anymore.
Should I file an issue about that?
This commit is contained in:
bors 2014-03-14 15:16:31 -07:00
commit 26fdfa124c
7 changed files with 38 additions and 43 deletions
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2
src/libgreen/context.rs
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@ -283,6 +283,8 @@ fn initialize_call_frame(regs: &mut Registers, fptr: InitFn, arg: uint,
unsafe { *sp = 0; }
regs[4] = arg as uint;
regs[5] = procedure.code as uint;
regs[6] = procedure.env as uint;
regs[29] = sp as uint;
regs[25] = fptr as uint;
regs[31] = fptr as uint;

10
src/librustc/back/mips.rs
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@ -22,7 +22,7 @@ pub fn get_target_strs(target_triple: ~str, target_os: abi::Os) -> target_strs::
data_layout: match target_os {
abi::OsMacos => {
~"e-p:32:32:32" +
~"E-p:32:32:32" +
"-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" +
"-f32:32:32-f64:64:64" +
"-v64:64:64-v128:64:128" +
@ -30,7 +30,7 @@ pub fn get_target_strs(target_triple: ~str, target_os: abi::Os) -> target_strs::
}
abi::OsWin32 => {
~"e-p:32:32:32" +
~"E-p:32:32:32" +
"-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" +
"-f32:32:32-f64:64:64" +
"-v64:64:64-v128:64:128" +
@ -38,7 +38,7 @@ pub fn get_target_strs(target_triple: ~str, target_os: abi::Os) -> target_strs::
}
abi::OsLinux => {
~"e-p:32:32:32" +
~"E-p:32:32:32" +
"-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" +
"-f32:32:32-f64:64:64" +
"-v64:64:64-v128:64:128" +
@ -46,7 +46,7 @@ pub fn get_target_strs(target_triple: ~str, target_os: abi::Os) -> target_strs::
}
abi::OsAndroid => {
~"e-p:32:32:32" +
~"E-p:32:32:32" +
"-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" +
"-f32:32:32-f64:64:64" +
"-v64:64:64-v128:64:128" +
@ -54,7 +54,7 @@ pub fn get_target_strs(target_triple: ~str, target_os: abi::Os) -> target_strs::
}
abi::OsFreebsd => {
~"e-p:32:32:32" +
~"E-p:32:32:32" +
"-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" +
"-f32:32:32-f64:64:64" +
"-v64:64:64-v128:64:128" +

25
src/libstd/libc.rs
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@ -2137,7 +2137,7 @@ pub mod consts {
pub static MAP_SHARED : c_int = 0x0001;
pub static MAP_PRIVATE : c_int = 0x0002;
pub static MAP_FIXED : c_int = 0x0010;
pub static MAP_ANON : c_int = 0x0020;
pub static MAP_ANON : c_int = 0x0800;
pub static MAP_FAILED : *c_void = -1 as *c_void;
@ -2433,20 +2433,19 @@ pub mod consts {
pub static O_DSYNC : c_int = 16;
pub static O_SYNC : c_int = 16400;
pub static PROT_GROWSDOWN : c_int = 0x010000000;
pub static PROT_GROWSUP : c_int = 0x020000000;
pub static PROT_GROWSDOWN : c_int = 0x01000000;
pub static PROT_GROWSUP : c_int = 0x02000000;
pub static MAP_TYPE : c_int = 0x000f;
pub static MAP_ANONONYMOUS : c_int = 0x0020;
pub static MAP_32BIT : c_int = 0x0040;
pub static MAP_GROWSDOWN : c_int = 0x0100;
pub static MAP_DENYWRITE : c_int = 0x0800;
pub static MAP_EXECUTABLE : c_int = 0x01000;
pub static MAP_LOCKED : c_int = 0x02000;
pub static MAP_NONRESERVE : c_int = 0x04000;
pub static MAP_POPULATE : c_int = 0x08000;
pub static MAP_NONBLOCK : c_int = 0x010000;
pub static MAP_STACK : c_int = 0x020000;
pub static MAP_ANONONYMOUS : c_int = 0x0800;
pub static MAP_GROWSDOWN : c_int = 0x01000;
pub static MAP_DENYWRITE : c_int = 0x02000;
pub static MAP_EXECUTABLE : c_int = 0x04000;
pub static MAP_LOCKED : c_int = 0x08000;
pub static MAP_NONRESERVE : c_int = 0x0400;
pub static MAP_POPULATE : c_int = 0x010000;
pub static MAP_NONBLOCK : c_int = 0x020000;
pub static MAP_STACK : c_int = 0x040000;
}
#[cfg(target_os = "linux")]
pub mod sysconf {

3
src/libstd/rt/libunwind.rs
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@ -65,6 +65,9 @@ pub static unwinder_private_data_size: int = 2;
#[cfg(target_arch = "arm")]
pub static unwinder_private_data_size: int = 20;
#[cfg(target_arch = "mips")]
pub static unwinder_private_data_size: int = 2;
pub struct _Unwind_Exception {
exception_class: _Unwind_Exception_Class,
exception_cleanup: _Unwind_Exception_Cleanup_Fn,

4
src/libstd/sync/atomics.rs
View File

@ -225,6 +225,10 @@ impl AtomicInt {
}
}
// temporary workaround
// it causes link failure on MIPS target
// libgcc doesn't implement 64-bit atomic operations for MIPS32
#[cfg(not(target_arch = "mips"))]
impl AtomicU64 {
pub fn new(v: u64) -> AtomicU64 {
AtomicU64 { v:v, nopod: marker::NoPod }

4
src/libstd/unstable/mutex.rs
View File

@ -324,12 +324,16 @@ mod imp {
static __SIZEOF_PTHREAD_MUTEX_T: uint = 24 - 8;
#[cfg(target_arch = "arm")]
static __SIZEOF_PTHREAD_MUTEX_T: uint = 24 - 8;
#[cfg(target_arch = "mips")]
static __SIZEOF_PTHREAD_MUTEX_T: uint = 24 - 8;
#[cfg(target_arch = "x86_64")]
static __SIZEOF_PTHREAD_COND_T: uint = 48 - 8;
#[cfg(target_arch = "x86")]
static __SIZEOF_PTHREAD_COND_T: uint = 48 - 8;
#[cfg(target_arch = "arm")]
static __SIZEOF_PTHREAD_COND_T: uint = 48 - 8;
#[cfg(target_arch = "mips")]
static __SIZEOF_PTHREAD_COND_T: uint = 48 - 8;
pub struct pthread_mutex_t {
__align: libc::c_longlong,

33
src/rt/arch/mips/morestack.S
View File

@ -19,38 +19,21 @@ __morestack:
.set noreorder
.set nomacro
// n.b. most of this is probably unnecessary. I know very little mips
// assembly, and I didn't have anything to test on, so I wasn't
// brave enough to try to trim this down.
addiu $29, $29, -4
sw $30, 0($29)
addiu $29, $29, -12
sw $31, 8($29)
sw $30, 4($29)
sw $23, 0($29)
// 24 = 12 (current) + 12 (previous)
.cfi_def_cfa_offset 24
// 16 = 4 (current) + 12 (previous)
.cfi_def_cfa_offset 16
.cfi_offset 31, -4
.cfi_offset 30, -20
.cfi_offset 23, -24
.cfi_offset 30, -16
move $23, $28
move $30, $29
.cfi_def_cfa_register 30
// Save argument registers of the original function
addiu $29, $29, -32
sw $4, 16($29)
sw $5, 20($29)
sw $6, 24($29)
sw $7, 28($29)
// O32 ABI always reserves 16 bytes for arguments
addiu $29, $29, -16
move $4, $14 // Size of stack arguments
addu $5, $30, 24 // Address of stack arguments
move $6, $15 // The amount of stack needed
move $28, $23
lw $25, %call16(rust_stack_exhausted)($23)
lw $25, %call16(rust_stack_exhausted)($28)
jalr $25
nop