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everywhere: rename __start_context to better descriptive libucontext_trampoline

pull/21/head
Ariadne Conill 2020-12-06 02:59:59 -06:00
parent c693dc663c
commit 2f31efaa95
22 changed files with 43 additions and 43 deletions
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4
arch/aarch64/makecontext.c
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@ -20,7 +20,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -38,7 +38,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.sp = (uintptr_t) sp; ucp->uc_mcontext.sp = (uintptr_t) sp;
ucp->uc_mcontext.pc = (uintptr_t) func; ucp->uc_mcontext.pc = (uintptr_t) func;
ucp->uc_mcontext.regs[19] = (uintptr_t) ucp->uc_link; ucp->uc_mcontext.regs[19] = (uintptr_t) ucp->uc_link;
ucp->uc_mcontext.regs[30] = (uintptr_t) &__start_context; ucp->uc_mcontext.regs[30] = (uintptr_t) &libucontext_trampoline;
va_start(va, argc); va_start(va, argc);

4
arch/aarch64/startcontext.S
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@ -12,11 +12,11 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
/* get the proper context into position and test for NULL */ /* get the proper context into position and test for NULL */
mov x0, x19 mov x0, x19
cbnz x0, __setcontext cbnz x0, __setcontext
/* something went wrong, exit */ /* something went wrong, exit */
b exit b exit
END(__start_context) END(libucontext_trampoline)

4
arch/arm/makecontext.c
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@ -22,7 +22,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -42,7 +42,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.arm_sp = (uintptr_t) sp; ucp->uc_mcontext.arm_sp = (uintptr_t) sp;
ucp->uc_mcontext.arm_pc = (uintptr_t) func; ucp->uc_mcontext.arm_pc = (uintptr_t) func;
ucp->uc_mcontext.arm_r4 = (uintptr_t) ucp->uc_link; ucp->uc_mcontext.arm_r4 = (uintptr_t) ucp->uc_link;
ucp->uc_mcontext.arm_lr = (uintptr_t) &__start_context; ucp->uc_mcontext.arm_lr = (uintptr_t) &libucontext_trampoline;
va_start(va, argc); va_start(va, argc);

4
arch/arm/startcontext.S
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@ -10,11 +10,11 @@
* from the use of this software. * from the use of this software.
*/ */
.globl __start_context; .globl libucontext_trampoline;
.fnstart .fnstart
.cantunwind .cantunwind
nop nop
__start_context: libucontext_trampoline:
/* get the proper context into position and test for NULL */ /* get the proper context into position and test for NULL */
movs r0, r4 movs r0, r4
bne __setcontext@plt bne __setcontext@plt

4
arch/m68k/makecontext.c
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@ -20,7 +20,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -42,7 +42,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.gregs[REG_PC] = (greg_t) func; ucp->uc_mcontext.gregs[REG_PC] = (greg_t) func;
/* return address */ /* return address */
*sp++ = (greg_t) __start_context; *sp++ = (greg_t) libucontext_trampoline;
va_start(va, argc); va_start(va, argc);

4
arch/m68k/startcontext.S
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@ -12,7 +12,7 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
lea (%sp, %d7.l * REG_SZ), %sp /* place uc_link in $sp */ lea (%sp, %d7.l * REG_SZ), %sp /* place uc_link in $sp */
tst.l (%sp) /* test next content for NULL */ tst.l (%sp) /* test next content for NULL */
@ -23,4 +23,4 @@ FUNC(__start_context)
no_linked_context: no_linked_context:
jbsr exit jbsr exit
END(__start_context) END(libucontext_trampoline)

2
arch/mips/makecontext.S
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@ -76,7 +76,7 @@ no_more_arguments:
addiu $t0, -(4 * REG_SZ) addiu $t0, -(4 * REG_SZ)
/* trampoline setup. */ /* trampoline setup. */
la $t9, __start_context la $t9, libucontext_trampoline
/* copy link pointer as $s0... */ /* copy link pointer as $s0... */
lw $v1, UCONTEXT_UC_LINK($a0) lw $v1, UCONTEXT_UC_LINK($a0)

4
arch/mips/startcontext.S
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@ -14,7 +14,7 @@ LOCALSZ = 1
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
move $gp, $s1 move $gp, $s1
/* we receive our initial ucontext in $s0, so if $s0 is nil, bail */ /* we receive our initial ucontext in $s0, so if $s0 is nil, bail */
@ -31,4 +31,4 @@ no_linked_context:
la $t9, exit la $t9, exit
jalr $t9 jalr $t9
nop nop
END(__start_context) END(libucontext_trampoline)

2
arch/mips64/makecontext.S
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@ -82,7 +82,7 @@ store_stack_arg:
no_more_arguments: no_more_arguments:
/* trampoline setup. */ /* trampoline setup. */
dla $t9, __start_context dla $t9, libucontext_trampoline
/* copy link pointer as $s0... */ /* copy link pointer as $s0... */
ld $v1, UCONTEXT_UC_LINK($a0) ld $v1, UCONTEXT_UC_LINK($a0)

4
arch/mips64/startcontext.S
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@ -14,7 +14,7 @@ LOCALSZ = 1
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
move $gp, $s1 move $gp, $s1
/* we receive our initial ucontext in $s0, so if $s0 is nil, bail */ /* we receive our initial ucontext in $s0, so if $s0 is nil, bail */
@ -31,4 +31,4 @@ no_linked_context:
dla $t9, exit dla $t9, exit
jalr $t9 jalr $t9
nop nop
END(__start_context) END(libucontext_trampoline)

4
arch/ppc/makecontext.c
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@ -20,7 +20,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -38,7 +38,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(), int argc, ...)
sp = (greg_t *) ((uintptr_t) sp & -16L); sp = (greg_t *) ((uintptr_t) sp & -16L);
ucp->uc_mcontext.gregs[REG_NIP] = (uintptr_t) func; ucp->uc_mcontext.gregs[REG_NIP] = (uintptr_t) func;
ucp->uc_mcontext.gregs[REG_LNK] = (uintptr_t) &__start_context; ucp->uc_mcontext.gregs[REG_LNK] = (uintptr_t) &libucontext_trampoline;
ucp->uc_mcontext.gregs[REG_R31] = (uintptr_t) ucp->uc_link; ucp->uc_mcontext.gregs[REG_R31] = (uintptr_t) ucp->uc_link;
ucp->uc_mcontext.gregs[REG_SP] = (uintptr_t) sp; ucp->uc_mcontext.gregs[REG_SP] = (uintptr_t) sp;

4
arch/ppc/startcontext.S
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@ -10,8 +10,8 @@
* from the use of this software. * from the use of this software.
*/ */
.globl __start_context; .globl libucontext_trampoline;
__start_context: libucontext_trampoline:
/* get the proper context into position and test for NULL */ /* get the proper context into position and test for NULL */
mr. 3,31 mr. 3,31

4
arch/ppc64/makecontext.c
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@ -20,7 +20,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -38,7 +38,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(), int argc, ...)
sp = (greg_t *) ((uintptr_t) sp & -16L); sp = (greg_t *) ((uintptr_t) sp & -16L);
ucp->uc_mcontext.gp_regs[REG_NIP] = (uintptr_t) func; ucp->uc_mcontext.gp_regs[REG_NIP] = (uintptr_t) func;
ucp->uc_mcontext.gp_regs[REG_LNK] = (uintptr_t) &__start_context; ucp->uc_mcontext.gp_regs[REG_LNK] = (uintptr_t) &libucontext_trampoline;
ucp->uc_mcontext.gp_regs[REG_SP] = (uintptr_t) sp; ucp->uc_mcontext.gp_regs[REG_SP] = (uintptr_t) sp;
ucp->uc_mcontext.gp_regs[REG_ENTRY] = (uintptr_t) func; ucp->uc_mcontext.gp_regs[REG_ENTRY] = (uintptr_t) func;
ucp->uc_mcontext.gp_regs[REG_R31] = (uintptr_t) ucp->uc_link; ucp->uc_mcontext.gp_regs[REG_R31] = (uintptr_t) ucp->uc_link;

6
arch/ppc64/startcontext.S
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@ -10,9 +10,9 @@
* from the use of this software. * from the use of this software.
*/ */
.globl __start_context; .globl libucontext_trampoline;
.hidden __start_context; .hidden libucontext_trampoline;
__start_context: libucontext_trampoline:
cmpdi 31,0 /* test if ucontext link pointer is null */ cmpdi 31,0 /* test if ucontext link pointer is null */
beq no_linked_context /* if it is, exit */ beq no_linked_context /* if it is, exit */

4
arch/riscv64/makecontext.c
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@ -20,7 +20,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -36,7 +36,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
sp = (greg_t *) (((uintptr_t) sp & -16L)); sp = (greg_t *) (((uintptr_t) sp & -16L));
/* set up the ucontext structure */ /* set up the ucontext structure */
ucp->uc_mcontext.__gregs[REG_RA] = (greg_t) __start_context; ucp->uc_mcontext.__gregs[REG_RA] = (greg_t) libucontext_trampoline;
ucp->uc_mcontext.__gregs[REG_S0] = 0; ucp->uc_mcontext.__gregs[REG_S0] = 0;
ucp->uc_mcontext.__gregs[REG_S1] = (greg_t) func; ucp->uc_mcontext.__gregs[REG_S1] = (greg_t) func;
ucp->uc_mcontext.__gregs[REG_S2] = (greg_t) ucp->uc_link; ucp->uc_mcontext.__gregs[REG_S2] = (greg_t) ucp->uc_link;

4
arch/riscv64/startcontext.S
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@ -12,7 +12,7 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
/* call the function passed to makecontext() */ /* call the function passed to makecontext() */
jalr s1 jalr s1
@ -26,4 +26,4 @@ FUNC(__start_context)
/* otherwise, exit. */ /* otherwise, exit. */
no_linked_context: no_linked_context:
tail exit@plt tail exit@plt
END(__start_context) END(libucontext_trampoline)

4
arch/s390x/makecontext.c
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@ -21,7 +21,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
extern int __setcontext(const ucontext_t *ucp); extern int __setcontext(const ucontext_t *ucp);
@ -38,7 +38,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.gregs[7] = (uintptr_t) func; ucp->uc_mcontext.gregs[7] = (uintptr_t) func;
ucp->uc_mcontext.gregs[8] = (uintptr_t) ucp->uc_link; ucp->uc_mcontext.gregs[8] = (uintptr_t) ucp->uc_link;
ucp->uc_mcontext.gregs[9] = (uintptr_t) &__setcontext; ucp->uc_mcontext.gregs[9] = (uintptr_t) &__setcontext;
ucp->uc_mcontext.gregs[14] = (uintptr_t) &__start_context; ucp->uc_mcontext.gregs[14] = (uintptr_t) &libucontext_trampoline;
va_start(va, argc); va_start(va, argc);

4
arch/s390x/startcontext.S
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@ -12,7 +12,7 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
basr %r14, %r7 /* run function pointer (%r7) and return here */ basr %r14, %r7 /* run function pointer (%r7) and return here */
ltgr %r8, %r8 /* check to see if uc_link (%r8) is null */ ltgr %r8, %r8 /* check to see if uc_link (%r8) is null */
@ -26,4 +26,4 @@ no_linked_context:
brasl %r14, exit@plt /* call exit */ brasl %r14, exit@plt /* call exit */
j .+2 /* crash if exit returns */ j .+2 /* crash if exit returns */
END(__start_context) END(libucontext_trampoline)

4
arch/x86/makecontext.c
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@ -19,7 +19,7 @@
#include <stdint.h> #include <stdint.h>
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -41,7 +41,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.gregs[REG_ESP] = (uintptr_t) sp; ucp->uc_mcontext.gregs[REG_ESP] = (uintptr_t) sp;
argp = sp; argp = sp;
*argp++ = (uintptr_t) &__start_context; *argp++ = (uintptr_t) &libucontext_trampoline;
va_start(va, argc); va_start(va, argc);

4
arch/x86/startcontext.S
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@ -12,7 +12,7 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
/* get the proper context into position and test for NULL */ /* get the proper context into position and test for NULL */
leal (%esp,%ebx,4), %esp leal (%esp,%ebx,4), %esp
cmpl $0, (%esp) cmpl $0, (%esp)
@ -38,4 +38,4 @@ no_linked_context:
__i686.get_pc_thunk.bx: __i686.get_pc_thunk.bx:
mov (%esp), %ebx mov (%esp), %ebx
ret ret
END(__start_context) END(libucontext_trampoline)

4
arch/x86_64/makecontext.c
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@ -19,7 +19,7 @@
#include "defs.h" #include "defs.h"
extern void __start_context(void); extern void libucontext_trampoline(void);
void void
@ -40,7 +40,7 @@ libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
ucp->uc_mcontext.gregs[REG_RBX] = (uintptr_t) &sp[uc_link]; ucp->uc_mcontext.gregs[REG_RBX] = (uintptr_t) &sp[uc_link];
ucp->uc_mcontext.gregs[REG_RSP] = (uintptr_t) sp; ucp->uc_mcontext.gregs[REG_RSP] = (uintptr_t) sp;
sp[0] = (uintptr_t) &__start_context; sp[0] = (uintptr_t) &libucontext_trampoline;
sp[uc_link] = (uintptr_t) ucp->uc_link; sp[uc_link] = (uintptr_t) ucp->uc_link;
va_start(va, argc); va_start(va, argc);

4
arch/x86_64/startcontext.S
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@ -12,7 +12,7 @@
#include "defs.h" #include "defs.h"
FUNC(__start_context) FUNC(libucontext_trampoline)
/* get the proper context into position and test for NULL */ /* get the proper context into position and test for NULL */
movq %rbx, %rsp movq %rbx, %rsp
movq (%rsp), %rdi movq (%rsp), %rdi
@ -31,4 +31,4 @@ no_linked_context:
/* something is really hosed, call hlt to force termination */ /* something is really hosed, call hlt to force termination */
hlt hlt
END(__start_context) END(libucontext_trampoline)