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Implement libc-WASI for Linux SGX platform and update documents (#343)

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This commit is contained in:
Wenyong Huang
2020-08-10 15:12:26 +08:00
committed by GitHub
parent 8edf1e152f
commit 1b6ddb37d0
55 changed files with 3692 additions and 516 deletions
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38
core/iwasm/common/wasm_runtime_common.c
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@ -1279,6 +1279,8 @@ wasm_runtime_init_wasi(WASMModuleInstanceCommon *module_inst,
struct fd_table *curfds;
struct fd_prestats *prestats;
struct argv_environ_values *argv_environ;
bool fd_table_inited = false, fd_prestats_inited = false;
bool argv_environ_inited = false;
int32 offset_argv_offsets = 0, offset_env_offsets = 0;
int32 offset_argv_buf = 0, offset_env_buf = 0;
int32 offset_curfds = 0;
@ -1373,9 +1375,26 @@ wasm_runtime_init_wasi(WASMModuleInstanceCommon *module_inst,
wasi_ctx->curfds_offset = offset_curfds;
wasi_ctx->prestats_offset = offset_prestats;
wasi_ctx->argv_environ_offset = offset_argv_environ;
wasi_ctx->argv_buf_offset = offset_argv_buf;
wasi_ctx->argv_offsets_offset = offset_argv_offsets;
wasi_ctx->env_buf_offset = offset_env_buf;
wasi_ctx->env_offsets_offset = offset_env_offsets;
fd_table_init(curfds);
fd_prestats_init(prestats);
if (!fd_table_init(curfds)) {
set_error_buf(error_buf, error_buf_size,
"Init wasi environment failed: "
"init fd table failed.");
goto fail;
}
fd_table_inited = true;
if (!fd_prestats_init(prestats)) {
set_error_buf(error_buf, error_buf_size,
"Init wasi environment failed: "
"init fd prestats failed.");
goto fail;
}
fd_prestats_inited = true;
if (!argv_environ_init(argv_environ,
argv_offsets, argc,
@ -1387,6 +1406,7 @@ wasm_runtime_init_wasi(WASMModuleInstanceCommon *module_inst,
"init argument environment failed.");
goto fail;
}
argv_environ_inited = true;
/* Prepopulate curfds with stdin, stdout, and stderr file descriptors. */
if (!fd_table_insert_existing(curfds, 0, 0)
@ -1424,6 +1444,12 @@ wasm_runtime_init_wasi(WASMModuleInstanceCommon *module_inst,
return true;
fail:
if (argv_environ_inited)
argv_environ_destroy(argv_environ);
if (fd_prestats_inited)
fd_prestats_destroy(prestats);
if (fd_table_inited)
fd_table_destroy(curfds);
if (offset_curfds != 0)
wasm_runtime_module_free(module_inst, offset_curfds);
if (offset_prestats != 0)
@ -1537,6 +1563,14 @@ wasm_runtime_destroy_wasi(WASMModuleInstanceCommon *module_inst)
fd_prestats_destroy(prestats);
wasm_runtime_module_free(module_inst, wasi_ctx->prestats_offset);
}
if (wasi_ctx->argv_buf_offset)
wasm_runtime_module_free(module_inst, wasi_ctx->argv_buf_offset);
if (wasi_ctx->argv_offsets_offset)
wasm_runtime_module_free(module_inst, wasi_ctx->argv_offsets_offset);
if (wasi_ctx->env_buf_offset)
wasm_runtime_module_free(module_inst, wasi_ctx->env_buf_offset);
if (wasi_ctx->env_offsets_offset)
wasm_runtime_module_free(module_inst, wasi_ctx->env_offsets_offset);
wasm_runtime_free(wasi_ctx);
}
}