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Work towards zipos / open(argv[0]) on metal (#667)

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tkchia 2022-11-06 15:29:47 +08:00 • committed by GitHub
parent 543c93f623
commit cb9a0466f1
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17 changed files with 257 additions and 46 deletions
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18
ape/ape.S
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@ -35,6 +35,7 @@
#include "ape/macros.internal.h"
#include "ape/notice.inc"
#include "ape/relocations.h"
#include "libc/calls/metalfile.internal.h"
#include "libc/dce.h"
#include "libc/elf/def.h"
#include "libc/macho.internal.h"
@ -1565,19 +1566,19 @@ kernel: movabs $ape_stack_vaddr,%rsp
#endif
push $_HOSTMETAL # sets __hostos in crt.S
pop %rcx
push $0
pushq .Lenv0(%rip) # envp[0][0]
mov %rsp,%rbp
mov .Lenv0(%rip),%rax
mov %rax,(%rbp) # envp[0][0]
push $0 # argv[0][0]
pushq .Largv0+8(%rip) # argv[0][8]
pushq .Largv0(%rip) # argv[0][0]
mov %rsp,%rax
push $0 # auxv[1][1]
push $0 # auxv[1][0]
push %rbp # auxv[0][1]
push %rax # auxv[0][1]
push $31 # auxv[0][0] AT_EXECFN
push $0 # envp[1]
push $.Lenv0 # envp[0]
push %rbp # envp[0]
push $0 # argv[1]
push %rbp # argv[0]
push %rax # argv[0]
push $1 # argc
xor %ebp,%ebp
xor %eax,%eax
@ -1593,6 +1594,9 @@ kernel: movabs $ape_stack_vaddr,%rsp
.rodata
.Lenv0: .asciz "METAL=1"
.Largv0:
.asciz APE_COM_NAME
.org .Largv0+16
.previous
#endif /* SupportsMetal() */

4
ape/ape.lds
View file

@ -565,10 +565,10 @@ SHSTUB2(ape_loader_dd_count,
#if SupportsMetal()
HIDDEN(v_ape_realsectors =
MIN(0x70000 - IMAGE_BASE_REAL,
ROUNDUP(RVA(_edata), 512)) / 512);
ROUNDUP(RVA(_tdata_end), 512)) / 512);
HIDDEN(v_ape_realpages = v_ape_realsectors / (4096 / 512));
HIDDEN(v_ape_highsectors =
(ROUNDUP(RVA(_edata), 512) / 512) - v_ape_realsectors);
(ROUNDUP(RVA(_tdata_end), 512) / 512) - v_ape_realsectors);
TSSDESCSTUB2(_tss, _tss, _tss_end ? _tss_end - _tss - 1 : 0);
#endif

4
ape/sections.internal.h
View file

@ -10,6 +10,10 @@ extern unsigned char _edata[];
extern unsigned char _ezip[];
extern unsigned char _end[];
extern unsigned char _ereal[];
extern unsigned char _tdata_start[];
extern unsigned char _tdata_end[];
extern unsigned char _tbss_start[];
extern unsigned char _tbss_end[];
extern unsigned char __privileged_start[];
extern unsigned char __privileged_addr[];
extern unsigned char __privileged_size[];