Schrodinger ZHU Yifan a1803ea063

[libc] implement sigsetjmp/siglongjmp for riscv (#137992) ...

See https://godbolt.org/z/jo7s6j7sq for compiled code.

```c++
#if __riscv_xlen == 64
#define STORE(A, B, C) "sd " #A ", %c[" #B "](" #C ")\n\t"
#define LOAD(A, B, C) "ld " #A ", %c[" #B "](" #C ")\n\t"
#elif __riscv_xlen == 32
#define STORE(A, B, C) "sw " #A ", %c[" #B "](" #C ")\n\t"
#define LOAD(A, B, C) "lw " #A ", %c[" #B "](" #C ")\n\t"
#else
#error "Unsupported RISC-V architecture"
#endif

namespace LIBC_NAMESPACE_DECL {
[[gnu::naked]]
LLVM_LIBC_FUNCTION(int, sigsetjmp, (sigjmp_buf, int)) {
  // clang-format off
  asm("beqz a1, .Lnosave\n\t"
      STORE(ra, retaddr, a0)
      STORE(s0, extra, a0)
      "mv s0, a0\n\t"
      "call %c[setjmp]\n\t"
      "mv a1, a0\n\t"
      "mv a0, s0\n\t"
      LOAD(s0, extra, a0)
      LOAD(ra, retaddr, a0)
      "tail %c[epilogue]\n"
".Lnosave:\n\t"
      "tail %c[setjmp]"
      // clang-format on
      ::[retaddr] "i"(offsetof(__jmp_buf, sig_retaddr)),
      [extra] "i"(offsetof(__jmp_buf, sig_extra)), [setjmp] "i"(setjmp),
      [epilogue] "i"(sigsetjmp_epilogue)
      : "a0", "a1", "s0");
}
```

2025-05-04 16:21:48 -04:00

..

arpa

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

llvm-libc-macros

[libc][sched] Implement CPU_ZERO, CPU_ISSET, CPU_SET macros (#131524)

2025-03-19 13:44:41 -04:00

llvm-libc-types

[libc] implement sigsetjmp/siglongjmp for riscv (#137992)

2025-05-04 16:21:48 -04:00

sys

[libc] Implement getitimer and setitimer, add proxy headers for itimerval (#134773)

2025-04-14 13:39:42 -07:00

__llvm-libc-common.h

[libc] add LLVM_LIBC_CAST macro. (#127319)

2025-02-19 23:28:11 +08:00

assert.h.def

[libc] Update assert for C23 (#137402)

2025-04-28 15:06:52 -04:00

assert.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

CMakeLists.txt

[libc] Combine the function prototype int (*compar)(const void *, const void *) (#134238)

2025-04-04 00:36:23 +08:00

complex.h.def

[libc][complex] Set up headers and add documentation for complex.h. (#111659)

2024-10-14 13:35:04 -04:00

complex.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

ctype.yaml

[libc] Make template_header optional for hdrgen (#127259)

2025-02-14 14:01:18 -08:00

dirent.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

dirent.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

dlfcn.h.def

[libc] Add dlfcn.h headers (#97772)

2024-07-05 22:02:04 -07:00

dlfcn.yaml

[libc] Make hdrgen support macro_header YAML field. (#123265)

2025-02-13 16:07:06 -08:00

elf.h.def

[libc] Reapply ELF/LINK header changes (#102765)

2024-08-13 08:20:37 -07:00

elf.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

endian.h.def

[libc] Add the <endian.h> header. (#125168)

2025-02-07 09:20:18 +08:00

endian.yaml

[libc] Add the <endian.h> header. (#125168)

2025-02-07 09:20:18 +08:00

errno.h.def

[libc] Support configurable errno modes (#98287)

2024-07-13 10:52:42 -07:00

errno.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

fcntl.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

fcntl.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

features.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

features.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

fenv.yaml

[libc] Canonicalize generated fenv.h (#127363)

2025-02-17 17:06:59 -08:00

float.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

float.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

inttypes.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

inttypes.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

limits.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

limits.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

link.yaml

[libc] Define (stub) dl_iterate_phdr (#131436)

2025-03-18 11:38:33 -07:00

locale.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

locale.yaml

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

malloc.yaml

[libc] Fill out generated malloc.h and related stdlib.h extensions (#127293)

2025-02-15 16:32:30 -08:00

math.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

math.yaml

[libc][math][c23] Add atanhf16 C23 math function. (#132612)

2025-04-25 07:53:52 -04:00

poll.h.def

[libc][POSIX][poll.h] implement poll (#125118)

2025-02-05 13:24:39 -08:00

poll.yaml

[libc][POSIX][poll.h] implement poll (#125118)

2025-02-05 13:24:39 -08:00

pthread.h.def

[libc] move pthread macros to dedicated header (#119286)

2024-12-10 09:00:06 -08:00

pthread.yaml

[libc] change return type of pthread_setspecific to int in generated header (#124072)

2025-01-23 10:01:39 -08:00

sched.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

sched.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

search.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

search.yaml

[libc] Combine the function prototype int (*compar)(const void *, const void *) (#134238)

2025-04-04 00:36:23 +08:00

setjmp.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

setjmp.yaml

Reland "[libc] build fix for sigsetjmp (#137047)" (#137214)

2025-04-29 09:28:42 -04:00

signal.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

signal.yaml

[libc][signal] clean up usage of sighandler_t (#125745)

2025-02-07 10:43:56 -08:00

spawn.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

spawn.yaml

[libc] Revise the definition of posix_spawn. (#124686)

2025-01-29 00:23:09 +08:00

stdbit.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

stdbit.yaml

[libc] Add missing stdc_first_trailing_zero_ to stdbit.yaml (#128101)

2025-02-21 08:24:59 -08:00

stdckdint.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

stdckdint.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

stdfix.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

stdfix.yaml

[libc][stdfix] Implement idivfx functions in LLVM libc (#133005)

2025-04-25 07:58:16 -04:00

stdint.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

stdint.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

stdio.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

stdio.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

stdlib-malloc.yaml

[libc] Fill out generated malloc.h and related stdlib.h extensions (#127293)

2025-02-15 16:32:30 -08:00

stdlib.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

stdlib.yaml

[libc] Combine the function prototype int (*compar)(const void *, const void *) (#134238)

2025-04-04 00:36:23 +08:00

string.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

string.yaml

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

strings.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

strings.yaml

[libc] implement strings/str{n}casecmp_l (#130407)

2025-03-12 10:49:04 +08:00

sysexits.h.def

Add sysexits.h header with BSD exit codes (total-18) (#126112)

2025-03-06 16:25:14 -08:00

sysexits.yaml

Add sysexits.h header with BSD exit codes (total-18) (#126112)

2025-03-06 16:25:14 -08:00

termios.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

termios.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

threads.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

threads.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

time.h.def

[libc] Define 'size_t' in time.h and uchar.h (#103441)

2024-08-13 16:02:43 -05:00

time.yaml

[libc] Add strftime_l (#127767)

2025-02-21 10:50:32 -08:00

uchar.h.def

[libc] Define 'size_t' in time.h and uchar.h (#103441)

2024-08-13 16:02:43 -05:00

uchar.yaml

[libc] Revamp hdrgen command line and build integration (#121522)

2025-01-07 15:56:12 -08:00

Uefi.h.def

[libc] Add UEFI headers (#127126)

2025-02-28 11:43:33 -05:00

Uefi.yaml

[libc] init uefi (#131246)

2025-03-14 20:15:24 -07:00

unistd.h.def

[libc] fix up the use of angle includes in include/ (#86027)

2024-03-22 08:24:08 -07:00

unistd.yaml

[libc][POSIX][unistd] implement getsid (#127341)

2025-02-19 14:26:18 -08:00

wchar.h.def

[libc] clean up duplicated includes in generated headers (#124524)

2025-01-28 12:22:51 -08:00

wchar.yaml

[libc][wchar] implement wcslen (#124150)

2025-01-23 13:33:04 -08:00