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Polina
2026-07-02 18:24:29 +00:00
parent 33dd0fffef
commit 5e73943ba6
5 changed files with 216 additions and 0 deletions
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79
venv/Lib/site-packages/greenlet/platform/switch_arm32_gcc.h Normal file
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/*
* this is the internal transfer function.
*
* HISTORY
* 14-Aug-06 File creation. Ported from Arm Thumb. Sylvain Baro
* 3-Sep-06 Commented out saving of r1-r3 (r4 already commented out) as I
* read that these do not need to be saved. Also added notes and
* errors related to the frame pointer. Richard Tew.
*
* NOTES
*
* It is not possible to detect if fp is used or not, so the supplied
* switch function needs to support it, so that you can remove it if
* it does not apply to you.
*
* POSSIBLE ERRORS
*
* "fp cannot be used in asm here"
*
* - Try commenting out "fp" in REGS_TO_SAVE.
*
*/
#define STACK_REFPLUS 1
#ifdef SLP_EVAL
#define STACK_MAGIC 0
#define REG_SP "sp"
#define REG_SPSP "sp,sp"
#ifdef __thumb__
#define REG_FP "r7"
#define REG_FPFP "r7,r7"
#define REGS_TO_SAVE_GENERAL "r4", "r5", "r6", "r8", "r9", "r10", "r11", "lr"
#else
#define REG_FP "fp"
#define REG_FPFP "fp,fp"
#define REGS_TO_SAVE_GENERAL "r4", "r5", "r6", "r7", "r8", "r9", "r10", "lr"
#endif
#if defined(__SOFTFP__)
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL
#elif defined(__VFP_FP__)
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "d8", "d9", "d10", "d11", \
"d12", "d13", "d14", "d15"
#elif defined(__MAVERICK__)
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "mvf4", "mvf5", "mvf6", "mvf7", \
"mvf8", "mvf9", "mvf10", "mvf11", \
"mvf12", "mvf13", "mvf14", "mvf15"
#else
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "f4", "f5", "f6", "f7"
#endif
static int
#ifdef __GNUC__
__attribute__((optimize("no-omit-frame-pointer")))
#endif
slp_switch(void)
{
void *fp;
int *stackref, stsizediff;
int result;
__asm__ volatile ("" : : : REGS_TO_SAVE);
__asm__ volatile ("mov r0," REG_FP "\n\tstr r0,%0" : "=m" (fp) : : "r0");
__asm__ ("mov %0," REG_SP : "=r" (stackref));
{
SLP_SAVE_STATE(stackref, stsizediff);
__asm__ volatile (
"add " REG_SPSP ",%0\n"
"add " REG_FPFP ",%0\n"
:
: "r" (stsizediff)
);
SLP_RESTORE_STATE();
}
__asm__ volatile ("ldr r0,%1\n\tmov " REG_FP ",r0\n\tmov %0, #0" : "=r" (result) : "m" (fp) : "r0");
__asm__ volatile ("" : : : REGS_TO_SAVE);
return result;
}
#endif

67
venv/Lib/site-packages/greenlet/platform/switch_arm32_ios.h Normal file
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/*
* this is the internal transfer function.
*
* HISTORY
* 31-May-15 iOS support. Ported from arm32. Proton <feisuzhu@163.com>
*
* NOTES
*
* It is not possible to detect if fp is used or not, so the supplied
* switch function needs to support it, so that you can remove it if
* it does not apply to you.
*
* POSSIBLE ERRORS
*
* "fp cannot be used in asm here"
*
* - Try commenting out "fp" in REGS_TO_SAVE.
*
*/
#define STACK_REFPLUS 1
#ifdef SLP_EVAL
#define STACK_MAGIC 0
#define REG_SP "sp"
#define REG_SPSP "sp,sp"
#define REG_FP "r7"
#define REG_FPFP "r7,r7"
#define REGS_TO_SAVE_GENERAL "r4", "r5", "r6", "r8", "r10", "r11", "lr"
#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "d8", "d9", "d10", "d11", \
"d12", "d13", "d14", "d15"
static int
#ifdef __GNUC__
__attribute__((optimize("no-omit-frame-pointer")))
#endif
slp_switch(void)
{
void *fp;
int *stackref, stsizediff, result;
__asm__ volatile ("" : : : REGS_TO_SAVE);
__asm__ volatile ("str " REG_FP ",%0" : "=m" (fp));
__asm__ ("mov %0," REG_SP : "=r" (stackref));
{
SLP_SAVE_STATE(stackref, stsizediff);
__asm__ volatile (
"add " REG_SPSP ",%0\n"
"add " REG_FPFP ",%0\n"
:
: "r" (stsizediff)
: REGS_TO_SAVE /* Clobber registers, force compiler to
* recalculate address of void *fp from REG_SP or REG_FP */
);
SLP_RESTORE_STATE();
}
__asm__ volatile (
"ldr " REG_FP ", %1\n\t"
"mov %0, #0"
: "=r" (result)
: "m" (fp)
: REGS_TO_SAVE /* Force compiler to restore saved registers after this */
);
return result;
}
#endif

53
venv/Lib/site-packages/greenlet/platform/switch_arm64_masm.asm Normal file
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AREA switch_arm64_masm, CODE, READONLY;
GLOBAL slp_switch [FUNC]
EXTERN slp_save_state_asm
EXTERN slp_restore_state_asm
slp_switch
; push callee saved registers to stack
stp x19, x20, [sp, #-16]!
stp x21, x22, [sp, #-16]!
stp x23, x24, [sp, #-16]!
stp x25, x26, [sp, #-16]!
stp x27, x28, [sp, #-16]!
stp x29, x30, [sp, #-16]!
stp d8, d9, [sp, #-16]!
stp d10, d11, [sp, #-16]!
stp d12, d13, [sp, #-16]!
stp d14, d15, [sp, #-16]!
; call slp_save_state_asm with stack pointer
mov x0, sp
bl slp_save_state_asm
; early return for return value of 1 and -1
cmp x0, #-1
b.eq RETURN
cmp x0, #1
b.eq RETURN
; increment stack and frame pointer
add sp, sp, x0
add x29, x29, x0
bl slp_restore_state_asm
; store return value for successful completion of routine
mov x0, #0
RETURN
; pop registers from stack
ldp d14, d15, [sp], #16
ldp d12, d13, [sp], #16
ldp d10, d11, [sp], #16
ldp d8, d9, [sp], #16
ldp x29, x30, [sp], #16
ldp x27, x28, [sp], #16
ldp x25, x26, [sp], #16
ldp x23, x24, [sp], #16
ldp x21, x22, [sp], #16
ldp x19, x20, [sp], #16
ret
END

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venv/Lib/site-packages/greenlet/platform/switch_arm64_masm.obj Normal file
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17
venv/Lib/site-packages/greenlet/platform/switch_arm64_msvc.h Normal file
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/*
* this is the internal transfer function.
*
* HISTORY
* 21-Oct-21 Niyas Sait <niyas.sait@linaro.org>
* First version to enable win/arm64 support.
*/
#define STACK_REFPLUS 1
#define STACK_MAGIC 0
/* Use the generic support for an external assembly language slp_switch function. */
#define EXTERNAL_ASM
#ifdef SLP_EVAL
/* This always uses the external masm assembly file. */
#endif