271 insertions(+), 292 deletions(-), -21 lines, -5 files Also: - tccdefs.h: WIN32: less (no) __builtins - libtcc.c: simply ignore -arch
Showing the changes to lib/alloca.S (1 of 16 files). Show all
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| 1 | /* ---------------------------------------------- */ | ||
| 2 | /* alloca.S */ | ||
| 3 | |||
| 4 | #ifdef __leading_underscore | ||
| 5 | # define _(s) _##s | ||
| 6 | #else | ||
| 7 | # define _(s) s | ||
| 8 | #endif | ||
| 9 | |||
| 10 | /* ---------------------------------------------- */ | ||
| 11 | #if defined __i386__ | ||
| 12 | |||
| 13 | .globl _(alloca), _(__alloca) | ||
| 14 | _(alloca): | ||
| 15 | _(__alloca): | ||
| 16 | push %ebp | ||
| 17 | mov %esp,%ebp | ||
| 18 | mov 8(%ebp),%eax | ||
| 19 | add $3,%eax | ||
| 20 | and $-4,%eax | ||
| 21 | #ifdef _WIN32 | ||
| 22 | jmp .+16 #p2 | ||
| 23 | p1: | ||
| 24 | sub $4096,%esp | ||
| 25 | sub $4096,%eax | ||
| 26 | test %eax,(%esp) | ||
| 27 | p2: | ||
| 28 | cmp $4096,%eax | ||
| 29 | jae p1 | ||
| 30 | #endif | ||
| 31 | sub %eax,%esp | ||
| 32 | mov 4(%ebp),%eax | ||
| 33 | mov 0(%ebp),%ebp | ||
| 34 | add $8,%esp | ||
| 35 | push %eax | ||
| 36 | lea 8(%esp),%eax | ||
| 37 | ret | ||
| 38 | |||
| 39 | /* ---------------------------------------------- */ | ||
| 40 | #elif defined __x86_64__ | ||
| 41 | |||
| 42 | .globl _(alloca) | ||
| 43 | _(alloca): | ||
| 44 | pop %rdx | ||
| 45 | #ifdef _WIN32 | ||
| 46 | mov %rcx,%rax | ||
| 47 | #else | ||
| 48 | mov %rdi,%rax | ||
| 49 | #endif | ||
| 50 | add $15,%rax | ||
| 51 | and $-16,%rax | ||
| 52 | jz p3 | ||
| 53 | |||
| 54 | #ifdef _WIN32 | ||
| 55 | p1: | ||
| 56 | cmp $4096,%rax | ||
| 57 | jbe p2 | ||
| 58 | test %rax,-4096(%rsp) | ||
| 59 | sub $4096,%rsp | ||
| 60 | sub $4096,%rax | ||
| 61 | jmp p1 | ||
| 62 | p2: | ||
| 63 | #endif | ||
| 64 | sub %rax,%rsp | ||
| 65 | mov %rsp,%rax | ||
| 66 | p3: | ||
| 67 | push %rdx | ||
| 68 | ret | ||
| 69 | |||
| 70 | /* ---------------------------------------------- */ | ||
| 71 | #elif defined __arm__ | ||
| 72 | |||
| 73 | .text | ||
| 74 | .align 2 | ||
| 75 | .global alloca | ||
| 76 | .type alloca, %function | ||
| 77 | alloca: | ||
| 78 | rsb sp, r0, sp | ||
| 79 | bic sp, sp, #7 | ||
| 80 | mov r0, sp | ||
| 81 | mov pc, lr | ||
| 82 | .size alloca, .-alloca | ||
| 83 | |||
| 84 | /* ---------------------------------------------- */ | ||
| 85 | #endif | ||