Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (t) tdm_spawn(2)
In the current RVU, these fields are meaningful:
#if defined (__LP64) || defined (_PROCEX32_64BIT)
typedef struct process_extension {
short pe_ver;
short pe_len;
int pe_pfs_size;
long long pe_mainstack_max;
long long pe_heap_max;
long long pe_space_guarantee;
char _ptr64 *pe_library_name;
char _ptr64 *pe_swap_file_name;
char _ptr64 *pe_extswap_file_name;
char _ptr64 *pe_process_name;
char _ptr64 *pe_hometerm;
char _ptr64 *pe_defines;
short pe_defines_len;
short pe_priority;
short pe_cpu;
short pe_memory_pages;
short pe_jobid;
short pe_name_options;
short pe_create_options;
short pe_debug_options;
short pe_OSS_options;
char filler_1[6];
} process_extension_def;
#else /* !defined (__LP64) && !defined (_PROCEX32_64BIT) */
typedef struct process_extension {
long pe_len;
char *pe_library_name;
char *pe_swap_file_name;
char *pe_extswap_file_name;
short pe_priority;
short pe_cpu;
short pe_name_options;
char filler_1[2];
char *pe_process_name;
char *pe_hometerm;
short pe_memory_pages;
short pe_jobid;
short pe_create_options;
char filler_2[2];
char *pe_defines;
short pe_defines_len;
short pe_debug_options;
long pe_pfs_size;
short pe_OSS_options;
char filler_3[2];
long pe_mainstack_max;
long pe_heap_max;
long pe_space_guarantee;
} process_extension_def;
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