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Update threadasm.S to support ELFv2 on PPC64.
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For the new Linux/PP64 LittleEndian boxes (POWER 8) a new ELF format was defined.
This commit updates the threadasm.S file to support ELFv2, too.
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redstar committed Oct 13, 2014
1 parent 83053e8 commit 42132e6
Showing 1 changed file with 94 additions and 66 deletions.
160 changes: 94 additions & 66 deletions src/core/threadasm.S
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Expand Up @@ -29,63 +29,91 @@
************************************************************************************/
#if defined( __PPC64__ )

#if defined(_CALL_ELF) && _CALL_ELF == 2
#define USE_ABI_2
#define LINKAGE_SZ 32
#define LR_OFS 16
#define TOC_OFS 24
#define GPR_OFS 32
#define STACK_SZ (LINKAGE_SZ + 26*8)
#define OFS_R3_R10 GPR_OFS
#define OFS_R14_R31 (GPR_OFS+8*8)
#else
#define LINKAGE_SZ 48
#define LR_OFS 16
#define TOC_OFS 40
#define GPR_OFS 112
#define STACK_SZ (LINKAGE_SZ + 8*8 + 18*8)
#define OFS_R3_R10 (STACK_SZ+LINKAGE_SZ)
#define OFS_R14_R31 GPR_OFS
#endif

.text
.globl _D4core6thread18callWithStackShellFMDFPvZvZv
#if defined( USE_ABI_2 )
.abiversion 2
#endif
.globl _D4core6thread18callWithStackShellFNbMDFPvZvZv
.globl _D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.align 2
.type _D4core6thread18callWithStackShellFMDFPvZvZv,@function
.section .opd,"aw",@progbits
_D4core6thread18callWithStackShellFMDFPvZvZv:
.type _D4core6thread18callWithStackShellFNbMDFNbPvZvZv,@function
#if defined( USE_ABI_2 )
.section .text._D4core6thread18callWithStackShellFNbMDFNbPvZvZv,"a",@progbits
#else
.section .opd,"aw",@progbits
#endif
_D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
#if !defined( USE_ABI_2 )
.align 3
.quad .L._D4core6thread18callWithStackShellFMDFPvZvZv
.quad .L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.quad .TOC.@tocbase
.quad 0
#endif
.text
/*
* Called with:
* r3: pointer context
* r4: pointer to function
*/
.L._D4core6thread18callWithStackShellFMDFPvZvZv:
.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
.cfi_startproc
stdu 1, -STACK_SZ(1)
mflr 0
std 0, 16(1) // save LR
stdu 1, -256(1) // stack size: 18*8 + 112 = 256
std 0, LR_OFS(1)
.cfi_def_cfa_offset 256
.cfi_offset lr, 16

/* Save r14-r31 in general register save area */
std 14, (112 + 0 * 8)(1)
std 15, (112 + 1 * 8)(1)
std 16, (112 + 2 * 8)(1)
std 17, (112 + 3 * 8)(1)
std 18, (112 + 4 * 8)(1)
std 19, (112 + 5 * 8)(1)
std 20, (112 + 6 * 8)(1)
std 21, (112 + 7 * 8)(1)
std 22, (112 + 8 * 8)(1)
std 23, (112 + 9 * 8)(1)
std 24, (112 + 10 * 8)(1)
std 25, (112 + 11 * 8)(1)
std 26, (112 + 12 * 8)(1)
std 27, (112 + 13 * 8)(1)
std 28, (112 + 14 * 8)(1)
std 29, (112 + 15 * 8)(1)
std 30, (112 + 16 * 8)(1)
std 31, (112 + 17 * 8)(1)
std 14, (OFS_R14_R31 + 0 * 8)(1)
std 15, (OFS_R14_R31 + 1 * 8)(1)
std 16, (OFS_R14_R31 + 2 * 8)(1)
std 17, (OFS_R14_R31 + 3 * 8)(1)
std 18, (OFS_R14_R31 + 4 * 8)(1)
std 19, (OFS_R14_R31 + 5 * 8)(1)
std 20, (OFS_R14_R31 + 6 * 8)(1)
std 21, (OFS_R14_R31 + 7 * 8)(1)
std 22, (OFS_R14_R31 + 8 * 8)(1)
std 23, (OFS_R14_R31 + 9 * 8)(1)
std 24, (OFS_R14_R31 + 10 * 8)(1)
std 25, (OFS_R14_R31 + 11 * 8)(1)
std 26, (OFS_R14_R31 + 12 * 8)(1)
std 27, (OFS_R14_R31 + 13 * 8)(1)
std 28, (OFS_R14_R31 + 14 * 8)(1)
std 29, (OFS_R14_R31 + 15 * 8)(1)
std 30, (OFS_R14_R31 + 16 * 8)(1)
std 31, (OFS_R14_R31 + 17 * 8)(1)

/* Save r3-r10 in parameter save area of caller */
std 3, (256 + 48 + 0 * 8)(1)
std 4, (256 + 48 + 1 * 8)(1)
std 5, (256 + 48 + 2 * 8)(1)
std 6, (256 + 48 + 3 * 8)(1)
std 7, (256 + 48 + 4 * 8)(1)
std 8, (256 + 48 + 5 * 8)(1)
std 9, (256 + 48 + 6 * 8)(1)
std 10, (256 + 48 + 7 * 8)(1)
std 3, (OFS_R3_R10 + 0 * 8)(1)
std 4, (OFS_R3_R10 + 1 * 8)(1)
std 5, (OFS_R3_R10 + 2 * 8)(1)
std 6, (OFS_R3_R10 + 3 * 8)(1)
std 7, (OFS_R3_R10 + 4 * 8)(1)
std 8, (OFS_R3_R10 + 5 * 8)(1)
std 9, (OFS_R3_R10 + 6 * 8)(1)
std 10, (OFS_R3_R10 + 7 * 8)(1)

/* Save r2 in TOC save area */
std 2, 40(1)
std 2, TOC_OFS(1)

/* Do not save r11, r12 and r13. */

Expand All @@ -103,46 +131,46 @@ _D4core6thread18callWithStackShellFMDFPvZvZv:
nop

/* Restore r2 from TOC save area */
ld 2, 40(1)
ld 2, TOC_OFS(1)

/* Restore r3-r10 from local variable space */
ld 3, (256 + 48 + 0 * 8)(1)
ld 4, (256 + 48 + 1 * 8)(1)
ld 5, (256 + 48 + 2 * 8)(1)
ld 6, (256 + 48 + 3 * 8)(1)
ld 7, (256 + 48 + 4 * 8)(1)
ld 8, (256 + 48 + 5 * 8)(1)
ld 9, (256 + 48 + 6 * 8)(1)
ld 10, (256 + 48 + 7 * 8)(1)
ld 3, (OFS_R3_R10 + 0 * 8)(1)
ld 4, (OFS_R3_R10 + 1 * 8)(1)
ld 5, (OFS_R3_R10 + 2 * 8)(1)
ld 6, (OFS_R3_R10 + 3 * 8)(1)
ld 7, (OFS_R3_R10 + 4 * 8)(1)
ld 8, (OFS_R3_R10 + 5 * 8)(1)
ld 9, (OFS_R3_R10 + 6 * 8)(1)
ld 10, (OFS_R3_R10 + 7 * 8)(1)

/* Restore r14-r31 from general register save area */
ld 14, (112 + 0 * 8)(1)
ld 15, (112 + 1 * 8)(1)
ld 16, (112 + 2 * 8)(1)
ld 17, (112 + 3 * 8)(1)
ld 18, (112 + 4 * 8)(1)
ld 19, (112 + 5 * 8)(1)
ld 20, (112 + 6 * 8)(1)
ld 21, (112 + 7 * 8)(1)
ld 22, (112 + 8 * 8)(1)
ld 23, (112 + 9 * 8)(1)
ld 24, (112 + 10 * 8)(1)
ld 25, (112 + 11 * 8)(1)
ld 26, (112 + 12 * 8)(1)
ld 27, (112 + 13 * 8)(1)
ld 28, (112 + 14 * 8)(1)
ld 29, (112 + 15 * 8)(1)
ld 30, (112 + 16 * 8)(1)
ld 31, (112 + 17 * 8)(1)

addi 1, 1, 256
ld 0, 16(1)
ld 14, (OFS_R14_R31 + 0 * 8)(1)
ld 15, (OFS_R14_R31 + 1 * 8)(1)
ld 16, (OFS_R14_R31 + 2 * 8)(1)
ld 17, (OFS_R14_R31 + 3 * 8)(1)
ld 18, (OFS_R14_R31 + 4 * 8)(1)
ld 19, (OFS_R14_R31 + 5 * 8)(1)
ld 20, (OFS_R14_R31 + 6 * 8)(1)
ld 21, (OFS_R14_R31 + 7 * 8)(1)
ld 22, (OFS_R14_R31 + 8 * 8)(1)
ld 23, (OFS_R14_R31 + 9 * 8)(1)
ld 24, (OFS_R14_R31 + 10 * 8)(1)
ld 25, (OFS_R14_R31 + 11 * 8)(1)
ld 26, (OFS_R14_R31 + 12 * 8)(1)
ld 27, (OFS_R14_R31 + 13 * 8)(1)
ld 28, (OFS_R14_R31 + 14 * 8)(1)
ld 29, (OFS_R14_R31 + 15 * 8)(1)
ld 30, (OFS_R14_R31 + 16 * 8)(1)
ld 31, (OFS_R14_R31 + 17 * 8)(1)

ld 0, LR_OFS(1)
mtlr 0
addi 1, 1, STACK_SZ
blr
.long 0
.quad 0
.Lend:
.size _D4core6thread18callWithStackShellFMDFPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFMDFPvZvZv
.size _D4core6thread18callWithStackShellFNbMDFNbPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.cfi_endproc

#elif defined( __ppc__ ) || defined( __PPC__ ) || defined( __powerpc__ )
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